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Perhitungan Tahanan kapal metode Holtrop
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Perhitungan Tahanan kapal metode Holtrop
Perhitungan Excell mencari tahanan kapal metode holtropFull description...
Author:
Rezha Maulana Kusuma A
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Urutan Dan Metode Pembuatan Kapal
TAHANAN KAPAL METODE HOLTROP A. DATA KAPAL
Tipe Nama - pp - ,l - 0i+p B ' T V+ Cb Cb ,l Cb pp Cb 0i+p Cm Cp ,l Cp pp Cp 0i+p C,p -CB /P
: General Cargo (Breakbulk) : MV Black Pearl : 78 m : 81.9 m : 79.9 m : 1# m : ". m : . m : 1$ kno & : $. 7 : $.71 : $.7$ : $.7#! : $.99$ : $.7!1 : $.78 : $.7#9 : $.8$# : $. $ m
!"!.#$#18 %ee& g 9.8 m*+! 1 kno& $.1 m*+ .1 m*+
Cb,l C,p
Ba&a+an Pa0a Me&o0e 'ol&rop 2n : 3ingga 1.$ Cp : $. $.8 B*T : !. 1 . $ -*B : #.9 1.9 Pengecekan 2n
: V+*(g 4 -,l)$. : .1*(9.8 4 81.9)$. : $.18!
&erpenu3i
Cp ,l Cp pp Cp 0i+p
: : :
$.7!1 $.78 $.7#9
&erpenu3i &erpenu3i &erpenu3i
B*T
:
1#*.
-*B
:
!.#"#"#"#"#"
&erpenu3i
: :
81.9*1# ".#$$
&erpenu3i
B. PERHITUNGAN TAHANAN TOTAL KAPAL
< T>T 0i mana < 2 (16k) < PP < B < T< <
: < 2(16k) 6 < PP 6 < ? 6 < B 6 < T< 6 < : : : : : :
2ric&ional 2ric&ional re+i+&ance re+i+&ance accor0in accor0ingg &o &3a 5TTC 5TTC 197 197 %ormula %ormula 2orm %ac&or o% &3e 'ull ppe ppen0a n0age ge re+i+ re+i+&a &anc ncee 00i&ional 00i&ional pre++ure re+i+&ance re+i+&ance o% bulbou+ bulbou+ bo, near near &3e ,a&er +ur%ace 00i&ional 00i&ional pre++ure re+i+&ance re+i+&ance 0ue 0ue &o &ran+om immer+ion immer+ion Mo0el Mo0el+3i +3ipp correla&i correla&ion on allo,an allo,ance ce re+i+&an re+i+&ance ce
Volume Displasmen
: -,l 4 B 4 T 4 Cb,l : 81.9 81.941 41#4 #4 4 4$ $7 7 : 181.$77 m#
Displasmen
: -,l 4 B 4 T 4 Cb,l 4 ; : 81.941#44$741$! : !8."$ &on
;
1.$!
Luas Permukaan Basa !"#
/
: - (!T 6 B)(Cm$.) ($.# 6 $.! Cb Cb $!8"! Cm Cm $.$$#"7 $.$$#"7 (B*T) (B*T) 6 $.#9 !.#8 BT*Cb : - (!( (!(. .) )6 6 (1# (1#)) ))($ ($.9 .99) 9) ($. ($.# # 6 $. $.! ! ($.7 ($.7) ) $.!8 $.!8"! "! ($.9 ($.99) 9) $.$$ $.$$# #"7 "7 (1# (1# $.#9"($.71)) 6 !.#8 ($)*($.7) : 1.98# m! 0i mana BT : -ua+ penampang melin&ang bulbou+ b
%. Peri&un'an Taanan Gesek Kapal !R 2) 0engan me&o0e 5TTC 197 R 2
$
%
() * +, !%-k %# " V)
Meng3i&ung
0i mana @ : i+ko+i&a+ kinema&i+ air lau& @ : $.887 4 1$" @ : 8.87A$$7 m!*+
Koe2isien Gesekan !+ ,#
C2 : $.$7* (-og
-< : -(1C -(1Cpp 6 $.$"C $.$"Cpp -CB -CB*( *(C Cpp 1)) 1)) : 81.9 81.9 (1$.7!1 (1$.7!1 6 $.$" $.$" ($.7!1)($ ($.7!1)($.$ .$)*( )*(($. ($.7!1) 7!1) 1)) 1)) : !#.78$ m Menen&ukan ,a/&or + %0
C1 : 1 6 $.$11 4 C/TA
Maka 0i0apa& nilai C+&ern 8 C1 : 1 6 $.$1 $.$111 4 (8 (8)) : $.91! Peri&un'an ,orm ,a/&or !% - k# 1.$"8$" (T*-) $."1$" (-*-<)$.1!1"# (-#*) $.#"8" (1Cp)$. (1 6 k) : $.9# 6 $.87118 C1 (B*-) 1.$"8$" (.*81.9) $."1$" (78*!#.78$)$.1!1"# ((81.9)#* : $.9# 6 $.87118 C1 (1#*81.9) : 1.19
3a4i nilai &aanan 'esek kapal !R ,# a4ala R , $ $ $
%
() * +, !%-k %# " V)
%
() !%.5)6#!5.55%78)# !%.%96#!%666.981#!6.%00# ) 0).01)
kN
). Peri&un'an Taanan Tam:aan !R APP# R APP $
%
() * V) "APP!%-k )#e; +,
Per3i&ungan /PP bo++ bo++ $.1! T bo++ $.1! 4 . bo++ $.""
/ bo++ 1. . . D / bo++ !.$! mD
Per3i&ungan /PP ru00er /PP c1.c!.c#.c(1.7.-.T*1$$) imana : - -,l c1 un&uk %ak&or &ipe kapal 1.$ un&uk kapal umum $.9 un&uk bulk carier 0an &anker 0engan 0i+placemen& E 1.7 un&uk &ug 0an &ra,ler c! un&uk %ak&or &ipe ru00er 1.$ un&uk kapal umum $.9 +emi +pa0e ru00er $.8 un&uk 0ouble ru00er $.7 un&uk 3ig3 li%& ru00er c# un&uk %ak&or pro%il ru00er 1.$ un&uk NCpro%il 0an pla& ru00er $.8 un&uk 3ollo, pro%il c un&uk ru00er arrangemen& 1.$ un&uk ru00er in &3e propeller Fe& 1. un&uk ru00er ou&+i0e &3e propeller Fe& c1 1.$ c! 1.$ c# 1.$ c 1.$
ari nilai c 0ia&a+ 0iambil :
Ha0i /PP
7.88#
m!
menen&ukan nilai (16k !)eI T=pe o% appen0age
/PP(m!)
16k!
/PP
7.88# !.$! 9.9#
1. ! #.
1 1
(16K !)eI 1.9!8*9.9# (16K !)eI 1."$# 3a4i nilai 4ari &aanan &am:aann
%
() * V) "APP!%-k )#e; +,
%
() !%.5)6# !6.%00# ) !9.916#!%.751#!5.55%78)# 5.171
kN
1. Peri&un'an Taanan Gelom:an' !R =# > un&uk ,n ? 5.0 R = $ +% +) +6 @ * ' ep m% ,n4 - m) /os !C ,n)#
nilai 0 $.9 Meng3i&ung 2rou0e Number $. 2n : V * ( g 4 - ,l ) : (.1) * (9.8 4 81.9)J$. : $.18! Menen&ukan %ak&or C7 C7 : B*: 1# * 81.9 : $.19
Ke&ika $.11LB*-L$.!
i+ini nilai 2n $.!## Menen&ukan nilai 5A 5A : 1689e4p(-*B)$.8$8"(1C,p)$.#$8(1CP$.$!!-CB)$."#"7(-<*B)$.#7(1$$ : 1689e4p(81.9*1#)$.8$8"(1$.8$#)$.#$8(1$.7!1$.$!!($.$))$."#"7(!#.78$* $.#7(1$$ (181.$77)*81.9)$.1"#$! : !#. Menen&ukan %ak&or C1 (Koe%%i+ien karena ben&uk lambung kapal ) C1 !!!#1$(C7)#.78"1#(T*B)1.$79"1(9$5A)(1.#7") !!!#1$($.19)#.78"1#(.*1#)1.$79"1(9$!#.)(1.#7") !.71
Menen&ukan %ak&or C# C# : $."BTJ1.*BT($.#1QBT 6 T2 3B) imana : T : -ua+ &ran+om a&au lua+ =g &ercelup ke air. 3B : Tinggi pu+a& bulb 0ari ba+e line $ T2 : /ara& pa0a bagian 3aluan BT : -ua+ penampang melin&ang 0ari Bulbu+ Bo,. Karena kapal ini tidak memiliki bulbous bow maka tidak memiliki luas pena
BT $ /e3ingga nilai C# : bulbous bow
$
Menen&ukan %ak&or C! C! : Koe%%i+ien karena a0an=a bulbou+bo, : A4p ( 1.89 C#$.) : A4p ( 1.89 $$.) : 1 Menen&ukan %ak&or C C : 1$.8(T*B.T.Cm) : 1$.8($*19.8.$.98$) : $.9!8"1"
Koe%%i+ien karena ben&uk b T -ua+ &ran+om a&au lua+ =g & Tran+om pa0a kapal ini lua+ +ebagian bera0a 0ia&a+ per Ha0i T 5.)%1) m#
Menen&ukan nilai O -*B : 1$7.1!*19 : ".#$$ n&uk -*B L 1! maka O : 1." Cp $.$# -*B : 1." ($.""7) $.$# (1$7.1!*19) : $.8 Menen&ukan %ak&or C1" C1" : 8.$7981 Cp 1#.8"7# Cp! 6 ".98#88 Cp# : 8.$7981 ($.""7) 1#.8"7# ($.""7)! 6 ".98#88 ) ($.""7)# : 1.!# Menen&ukan nilai m1 (koe%i+ien karena lambung kapal) m1 : $.$1$$7 -*T 1.7! 1*# *- 6 .79#!# B*- C1"
: $.$1$$7(1$7.1!*8 1.7! (1$811.$7)1*# *1$7.1! 6 .79#!# 19*1$7.1! : !.1#1 Menen&ukan %ak&or C1 -#* : 81.9*181.$77 : 1#1.#9$ maka C1 1."9#8
i+ini nilai -#*L 1!
Menen&ukan nilai m! m! : C1 Cp! e4p($.1 2n!) : C1 ($.""7)! e4p($.1 ($.!##)!) : $.$! "ein''a nilai &aanan 'elom:an' !R =# se:esar R = $ +% +) +6 @ * ' ep m % ,n4 - m) /os !C ,n)#
nilai 4 5.9
$ !).6F%#!%# !%#!0%8%.5FF#!%.5)6#!9.8#ep!).%1%#!5.860-!5.%)5#/os!5.F96 $ 7187F.717 N $ 71.87F716866% kN 0. Peri&un'an Taanan Tam:aan Dari Bul:ous Bo !R B#
Kapal ini &i0ak menggunakan Bulbou+ Bo,. Ha0i < B : $ 6. Peri&un'an Taanan Tam:aan Dari Transom !R TR #
< T< : $. ;. V!.T.C" : $
T -ua+ &ran+om a&au lua+ =g & Tran+om pa0a kapal ini lua+ +eluru3n=a bera0a 0ia&a+ pe Ha0i T 5
7. Mo4el "ip +orrela&ion alloan/e !R A#
0ala3 nilai korek+i =ang ber3ubungan 0engan mo0el kapal : Menen&ukan nilai T*T*- 8*1$7.1! T*- $.$"7 Menen&ukan nilai C n&uk nilai T*- R $.$ maka nilai C $.$ C $.$$"(-61$$)$.1"$.$$!$6$.$$#(-*7.)$.CbC!($.$C
$.$$"(81.961$$)$.1"$.$$!$6$.$$#(81.9*7.)$.$.7C!( $.$$$9"! "ein''a ki&a 4apa& men'i&un' nilai R A a4ala R A 5.6 *. V).+A." !5.6#!%.5)6#!6.%00# )!5.55567#!%666.981# %%.8%% kN 3a4i Taanan To&al Kapal !R T# se:esar R T $ R ,!%-k# - R APP - R = - R B - R TR - R A $ %6%.9F9 kN - %.0%0 kN - 7F.801 kN - 5 kN - 5 kN - 0%.7F5 kN $ %)7.F7F kN "ea Mar'in
Nilai ini ma+i3 0alam kon0i+i pela=aran normal +e3ingga perlu a0an=a &a3anan &amba3an un&u 0i pela=aran Nu+an&ara maka 0ia+um+ikan nilai +ea marginn=a 1$S R&seri/e $ !%-%5# R T $ !%-%5# )7).95F kN $
%19.000
kN
+pee0 leng&3 ra&io V+*Q(- 0i+p) $."179 ,l -,l 4 B 4 "7.#9#"#
(-ppCb)*-,l $!8 6 $778 Cb,l $.7
&on*m#
C,p) 6 *.) 6
,
pa0a !8$
"$!7
181.$77) $.#"8" (1$.7!1)$."$!8
m
$.$$$ &on
Kapal umum 0an U L $.$$$ &on Tipe kemu0i kapal umum Pro%il NC 0an kemu0i pla&. n&uk kemu0i 0ibelakang prop.
(16k !)
.8! .1$# .9!8
*-#)$.1"#$! #)
mpang dari
ri&an kapal. rcelup ke air. permukaann=a ukaan air.
Ke&ika CP L $.8$. i+ini Cp,l
$.7!1
1.!9!
!5.)11#)#
rcelup ke air. permukaann=a mukaan air.
)
.$$.$)
Falur pela=aran. Kapal ini berla=ar
PERHITUNGAN DAJA A. DATA KAPAL
Tipe Nama - pp - ,l - 0i+p B ' T V+
: General Cargo (Breakbulk) : MV Black Pearl : 78 m : 81.9 m : 79.9 m : 1# m : ". m : . m : 1$ kno&
Cb ,l Cb pp Cb 0i+p Cm Cp ,l Cp pp Cp 0i+p C,p -CB pp
: : : : : : : : :
$.71 $.7$ $.7#! $.99$ $.7!1 $.78 $.7#9 $.8$# $.$
g 1 kno& .1 m*+
9.8 m*+! $.1 m*+
m
%. Da
Be+arn=a 0a=a =ang 0ibu&u3kan un&uk menga&a+i ga=a 3amba& 0ari ba0an kapal ('ull) agar kapal 0apa& +e+uai 0engan kecepa&an +ebe+ar V+ A'P
< T 4 V/ < T V+
imana :
1#9.4.1 717.#" 9"1."1
1#9.$""1 .1
k? 'P
). Da
'P imana : Pc imana rr
A'P * Pc (un&uk kapal balingbaling
rr 4 P 4 '
P '
Be3in0 &3e +3ip umumn=a berki+ar (1.$! 1.$) 1.$
iame&er mak+imum propeller :
mak+ $." T mak+ L mak+ L
$." 4 . #."
m
Meng3i&ung ?ake 2rac&ion : ?ake %ric&ion a&au aru+ iku& a0ala3 perbe0aan kecepa&an kapal 0engan kecepa&an aliran air =ang menuFu ke balingbaling. Pa0a kapal ini 0igunakan +ingle +cre, propelermaka nilai , a0ala3 +ebagai beriku& : C8 B / * ( - T ) a) 1# 4 1.98# * (81.9 4 #." 4 .) 1!."1 b)
C9
C8 1!."1
c)
C11
T* . * #." 1.#8
0)
C19 $.18"7 * ( 1.#71 Cm ) $.71!7" 6 $.#8"8 Cp $.18"7 *(1.#71 $.99$) $.71!7" 6 $.#8"8 4 $.7!1 $.$7!
e)
C!$ 1 6 $.$$1 C/TA
%)
Cp1 1. Cp $.#1 $.$!! -CB (1. 4 $.7!1)$.#1($.$!! 4 $.$) $.719
g)
C2
$.$$1"8!
C $.$$$"$ CV (16k) C2 6 C (1.19! 4 $.$$1"8!) 6$.$$$" $.$$$9"! /e3ingga ,ake %rac&ion , C9.C!$.C.-*T($.$$77"6$.9#$.C11.C*(1Cp1))6$.!791.C!$Q(B*(-(1Cp1 1!."14$.988 4 $.$$$9"!4(81.9*.)4($.$$77"6$.9#$ 4 1.#84$.$$ $.988 Q(1#*(81.9(1$.719)) 6 ($.$7! 4 $.988) $.#$! Meng3i&ung &ru+& 0e0uc&on %ac&or (&) & $.!$1 (B*-)$.!89" (Q(B.T)* )$.!""*(1Cp6$.$!!-CB)$.$17"!6$.$$1 C/TA
'P A'P*Pc 9"1."1 * $.7#" 97."1 k? 1#$". 'P
1. a=a orong (T'P)
T'P a0ala3 0a=a =ang 0ikirimkan propeller ke air. T'P A'P * ƞ' 9"1."1 * 1.!#$ 8#.#$ k? 781.91 'P 0. a=a Pa0a Poro+ Baling W Baling (/'P)
i +ini kapal memiliki kamar me+in 0i bagian belakang 0engan lo++ !S. /e3ingga 3arga e%i+ien+i ban&alan 0an &abung baling baling a&au /B a0ala3 $98. /'P 'P * /B 0alam perancangan ini 0irencanakan G +ebe+ar $98
1#$". * $.98 99.$ 1###.11
k? 'P
6. a=a Penggerak &ama (B'P)
/i+&em ro0a gigi pa0a kapal ini 0irencanakan menggunakan Gigi
kN m*+ (a+um+i per&ama)
&unggal)
)6C19.C!$ 9"!*(1$.719) 6$.!791 4
$14(8)
e+ign -pp B T Cb V+
78 m 1# m . m $.7 1$ kno&
/&a&i+&ik 111." 'P
PEMILIHAN MAIN ENGINE Merk
:
MAN B & W
Type
:
S 35 MC
Cycle
:
4 stroke
Power max
:
2205
kW
:
3000
$P
Cyl%'er
:
4
Bore
:
2(0
mm
P%sto Stroke
:
320
mm
*e+t,
:
(03-
mm
W%'t,
:
2200
mm
$e%+,t
:
#425
mm
.pm
:
/3
rpm
MP
:
-"
Mpa
S1C
:
//
+ramkW,
kW ! "3#054422
)%mes%o
A
Per,%t+a la+ 'aya e+%e Warts%la B$PMC. ! a 2205 6w ! 7
3000
$P
B$PSC. ! B$PMC. x 0"-0 ! 4000x 0"-0 ! -(5 kW ! 2/00 $P
c
S$P ! B$PSC. x 89 ! 3#00 x 0"-( ! -44"( kW ! 2#4# $P
'
)$P ! S$P x 8S8B ! 352( x 0"-( ! -0# kW ! 25-3 $P
e
$P ! )$P x Pc ! 352( x 0"#44
650
! !
22/ #/0
kW $P
T$P ! $P x ;, ! 222/ x "3! 50kW ! 2054 $P
$P
PERHITUNGAN PROPELLER Per,%t+a )%ameter pt%mm " Meetka Nprop Nprop ! Nma% e+%e rat%o +ear7ox !
/3
rpm
2" Meetka %la%
w ! =/"5#2 x =>0"244 ! 3"5-2 ms
!
#"-(3
kot
3" Meetka %la% Bp
Bp = =/3 x3345?//0?4#5
!
4("53
4" 0"/3-@=Bp0"5 ! "2 )ar% pem7acaaa +rak '%'apatka :
BP - δ Diagram " )%ameter maks%mm ! 2" Meetka
w x
35 30#"45 B3>50 30#"45 B3>#5 30#"45 B3>(0 30#"45 B4>40 30#"45 B4>55 30#"45 B4>/0 30#"45 B4>(5 30#"45 B4>00 30#"45 B5>45 30#"45 B5>#0 30#"45 B5>/5 30#"45 B5>-0 30#"45 B5>05 30#"45
0"#5 x T
!
3"#
m
kot
N "engine#
N!Pro"Rm#
$
%s "&no'# %a "&no'#
/3
/3
0"302
0
#"-(3
/3
/3
0"302
0
#"-(3
/3
/3
0"302
0
#"-(3
/3
/3
0"302
0
#"-(3
/3
/3
0"302
0
#"-(3
/3
/3
0"302
0
#"-(3
/3
/3
0"302
0
#"-(3
/3
/3
0"302
0
#"-(3
/3
/3
0"302
0
#"-(3
/3
/3
0"302
0
#"-(3
/3
/3
0"302
0
#"-(3
/3
/3
0"302
0
#"-(3
/3
/3
0"302
0
#"-(3
/3
/3
0"302
0
#"-(3
3"o
! =Do 0"00-(/5
4" N%la% )o 'alam 7r%t%s, %t =t? maka
5" Besarya )7 ter+at+ 'ar% Emla, propeller ya+ '%paka% Ftk S%+le>Screw Propeller )7 ! 0"-# )o Ftk Tw%>Screw Propeller )7 ! 0"-( )o Ftk kapal %% ya+ me++aka s%+le>screw propeller" #" Meetka P)o? o 'a 8o 'ar% +ra%k Bp '%a+ram" Type propeller
0"/3- =BP2
P)o
Do
o
8o
B3>35
"2
0"/2
2"/
2-"/5
0"#5
B3>50
"2
0"/
2"3
25"/0
0"5-2
B3>#5
"2
0"/#
2"05
20/"5-
0"55(
B3>(0
"2
0"(2
"-/
--"4-
0"550
B4>40
"2
0"/#5
2"
22"##
0"5-2
B4>55
"2
0"/5
2"05
20/"5-
0"5-
B4>/0
"2
0"/(
2
202"53
0"5(
B4>(5
"2
0"(52
"-4
-#"4#
0"5#-
B4>00 B5>45
"2
B5>#0
"2
B5>/5
"2
B5>-0
"2
B5>05
"2
"(/ "-25 ""-3 "("(5
(-"3/
"2
0"(0"(2 0"( 0"( 0"(5 0"(-5
0"552 0"5(0 0"5(5 0"5(2 0"5/2 0"55-
-4"-4 -2"4 -5"44 -"3(/"34
/" o ! =Do 0"00-(/5 (" N%la% )o 'alam 7r%t%s, %t =t? maka
-" Besarya )7 ter+at+ 'ar% Emla, propeller ya+ '%paka% Ftk S%+le>Screw Propeller )7 ! 0"-# )o Ftk Tw%>Screw Propeller )7 ! 0"-( )o Se,%++a? tk kapal %% ya+ me++aka s%+le>screw propeller"
)o =t !
)7 =t ! 0"-# x )o
=s%+le screw
)7 =t ! 0"-( x )o 7 !
=tw% screw
)7xN
D7! 0"00-(/5 x 7
Type propeller
)o =t
)7 =t s%+le screw
7
D7
P)7
B3>35
("(/
("52
20"-#
2"0(
0"/45
B3>50
("/
("3#
20/"0/
2"04
0"/34
B3>#5
("3(
("04
--"2-
"-/
0"/52
B3>(0
("05
/"/3
-"5
"(-
0"(40
B4>40
("5(
("24
204"5
2"02
0"/#0
B4>55
("3(
("04
--"2-
"-/
0"//0
B4>/0
("/
/"(5
-4"43
"-2
0"(5
B4>(5
/"-3
/"#
(("#0
"(#
0"(50
B4>00 B5>45
/"#4
/"34
("/-
"(0
0"-20
/"(/
/"55
(/"4
"(5
0"(40
B5>#0
/"//
/"4#
(4"/
"(2
0"(40
B5>/5
/"(-
/"5/
(/"#3
"(5
0"(35
B5>-0
/"/3
/"42
(3"/4
"(
0"(#5
B5>05
/"5#
/"2#
/-"(5
"/(
0"-0
Type propeller
)7 =t
)7 =m
)max =m
Apaka,
)7 G )max
2"#0
3"5(
0"#5
terpe,%
2"55
3"5
0"#4
terpe,%
2"45
3"3(
0"#
terpe,%
2"3#
3"25
0"5-
terpe,%
2"5
3"4#
0"#3
terpe,%
2"45
3"3(
0"#
terpe,%
2"3-
3"2-
0"#0
terpe,%
2"32
3"20
0"5(
terpe,%
2"24
3"0(
0"5#
terpe,%
2"30
3"/
0"5(
terpe,%
2"2/
3"3
0"5/
terpe,%
2"3
3"(
0"5(
terpe,%
B3>35 B3>50 B3>#5 B3>(0 B4>40 B4>55 B4>/0 B4>(5 B4>00
("52 ("3# ("04 /"/3 ("24 ("04 /"(5 /"# /"34
B5>45
/"55
B5>#0
/"4#
B5>/5
/"5/
" >
B5>-0
/"42
B5>05
/"2#
2"2#
3"
0"5/
terpe,%
2"2
3"05
0"55
terpe,%
PERHITUNGAN (A%ITA)I
A+ka kaH%tas% J0"/.!="((2K-"#2=,
0"33T , ! #"/2 > 0"33 =#"/2 ,! 3"#(5 m
Per*i'+ngan T*r+s' (oe,sien T ! .=>t )%maa : . ! 3-"444 kN t ! 0"4 T ! 2(-"-/=>0"40 ! #2"3( kN
Proe.'e/ Area /ari Proeer 2 2 Ic ! =T Ap =0"5 x L x < . ! T = 0?5 x L x Ap x < . )%maa :
<.2 !
) ! )%ameter propeller L!
"025
tom3
A0 ! 4 x x ) 2 AP ! A) x ="0#/ > 0"22-=P)
=
σ $.7<
1 8 8! + 1 9" !h Va
!
+ (8 # " x n! x D ! )
T1e
NB "rs#
D4 "m#
07R
89 4+rri
%R:
B3>35 B3>50 B3>#5 B3>(0 B4>40 B4>55 B4>/0 B4>(5 B4>00
B5>05
2"(( 2"(( 2"(( 2"(( 2"(( 2"(( 2"(( 2"(( 2"(( 2"(( 2"(( 2"(( 2"(( 2"((
2"#0 2"55 2"45 2"3# 2"5 2"45 2"32"32 2"24 2"30 2"2/ 2"3 2"2# 2"2
0"## 0"#0"/4 0"(0 0"/ 0"/4 0"// 0"(2 0"(( 0"(3 0"(5 0"(3 0"(# 0"-0
0"3 0"3 0"( 0"24 0"20 0"20 0"20 0"2( 0"3# 0"2( 0"2( 0"2( 0"32 0"3#
2(3"45 2/3"5/ 254"3# 235"(( 2##"2( 254"3# 242"/3 22-"4 23"(2 225"( 220"32 22#"-2 2("4 20-"54
T1e
AP "m:#
B3>35 B3>50 B3>#5 B3>(0 B4>40 B4>55 B4>/0 B4>(5 B4>00
/"(# 24"#5 2-"54 32"(2 -"04 24"(( 2-"(0 33"/3 3#"/"#3 22"-0 2-"5/ 33"/# 3/"30
B5>45 B5>#0 B5>/5 B5>-0
B5>45 B5>#0 B5>/5 B5>-0 B5>05
Syarat T%'ak 6aH%tas%
8.
.a
8.
4+rri
0"0#3 0"04/ 0"042 0"04 0"0#2 0"050 0"044 0"04 0"04 0"0(0 0"0#3 0"04/ 0"043 0"04
0"3 0"3 0"( 0"24 0"20 0"20 0"20 0"2( 0"3# 0"2( 0"2( 0"2( 0"32 0"3#
89 4+rri
"m;s#
A0 5#"-/ 54"(3( 50"/-# 4#"-053"304 50"/-# 4("34( 45"4- 42"2#/ 44"/-0 43"#35 45"023 43"/# 4"3#(
(a2i'asi 3 t%'ak t%'ak t%'ak t%'ak t%'ak t%'ak t%'ak t%'ak t%'ak t%'ak t%'ak t%'ak t%'ak t%'ak
8.
.a
6area %la% kaH%tas% 'ar% ,as%l per,%t+a le7%, kec%l 'ar% a+ka kaH%tas% 'ar% ,as%l pem7acaa pa'a +rak 7r%l maka t%'ak terEa'% kaH%ta
Propeller ya+ '%p%l%, ya%t propeller 'e+a keteta : " )%ameter propeller ya+ '%p%l%, ,ars kra+ 'ar% '%ameter max 2" T%'ak terEa'% kaH%tas% pa'a propeller 3" Propeller ya+ '%p%l%, mempya% es%es% ya+ pal%+ 7a+s
Proeer
35 )7 ! 2"#0 P) 8 N
! ! !
0"/5 0"#32 /3
m
rpm
PERHITUNGAN ULANG DA
!
. T x
. T
! !
8rr
8o 8$
3-"444 kN 5"44 ms
! ! !
2(-"-/ x /"5#2 //"3# kW -#"# $P
!
.at%o atara es%es% 7al%+>7al%+ pa'a saat ope water" Be,%' t,e s,%p mmya 7erk%sar "02>"05 "03 .at%o atara 'aya 'oro+ 'e+a 'aya ya+ '%salrka 0"#32 s%es% .at%o atara 'aya eekt% 'e+a 'aya 'oro+ =>t=>w "230
! ! ! ! ! ! !
CoeOs%e Propls% =Pc Pc ! 8rr x 8o x 8$ ! "03x 0"54/ x "3/ ! 0"(0 Se,%++a '%'apatka
)$P ! $PPc ! 2(/0"#40 ! (-#"0/ kW ! 20"# $P
>
)aya )oro+ =T$P T$P a'ala, 'aya ya+ '%k%r%mka propeller ke a%r" T$P ! $P ;$ ! 2(/"3/ ! 5(3"30 kW ! /("- $P
?
)aya Pa'a Poros Bal%+ Bal%+ =S$P )% s%% kapal mem%l%k% kamar mes% '% 7a+%a 7elaka+? 'e+a loss 2Q" ,ar+a e%s%es% 7atala 'a ta7+ 7al%+ > 7al%+ ata 8S8B a'ala, 0?S$P ! )$P 8S8B 'alam peraca+a %% '%recaaka 8S8B se7esar 0"-( ! 345"0/ 0"-( ! -4"35 kW ! 225"#( $P
5
)aya Pe++erak Ftama =B$P S%stem ro'a +%+% pa'a kapal %% '%recaaka me++aka 9%+% .e'ks% ata S%+le .e'ct%o 9ears 'e+a loss 2Q tk ara, maE 'a 9%+% Pe ata .eHers%+ 9ears 'e+a loss Q )ar% 'ata s%stem %% 'apat '%keta, e%s%es% s%stem ro'a +%+% trasm%s% ata 89 'ar% set%ap s%stem a'ala, " 89 S%+le .e'ct%o 9ears ! 0"-( 2" 89 .eHers%+ 9ears ! 0"-)a pem%l%,aya %ala, s%+le re'ct%o +ears ! 0"-( 'e+a loss 2Q? B$PSC. !
S$P 89 ! 34(4"/#0"-( ! -33"0 kW ! 250"#$P
Besarya 'aya motor pe++erak tama ata motor %' k %% a'ala, 'aya pa'a pelayara ormal ata SC.? '%maa 7esarya a'ala, -0 Q 'ar% 'ay pa'a ko'%s% maks%mm ata MC." B$PMC. ! B$PSC. ! 3555"(( 0"-0 ! -33"0 kW ! 250"#$P )aya e+%e ya+ '%p%l%, a'ala, 4000 kW" Da'% keperla 'aya mas%, terckp%"
B@
@7>B@
4("53
"2
4("53
"2
4("53
"2
4("53
"2
4("53
"2
4("53
"2
4("53
"2
4("53
"2
4("53
"2
4("53
"2
4("53
"2
4("53
"2
4("53
"2
4("53
"2
87 0"#32 0"#5 0"5(2 0"#/2 0"#-2 0"#02 0"5-5 0"5(0 0"5/ 0"5-0 0"#02 0"5-5 0"5(5 0"5#-
rps
AD;A0
AD
0"35 0"50 0"#5 0"(0 0"40 0"55 0"/0 0"(5 "00 0"45 0"#0 0"/5 0"-0 "05
-"-2 2/"42 33"02 3/"53 2"32 2/"-4 33"(4 3("#/ 42"2/ 20"# 2#"( 33"// 3("(# 43"44
"325
0"(/#-23
/"#// 0"/
%pt !
"5 "(/ 3"2 "#(3 0"35-3/5 0"035-3( 0"35-3(
s%"
++al m7al%k % ,ar+a
e,%++a "
kelara kelara
ENGINE PROPELLER MAT9HING DATA ACAL )ata awal %% 7erasal 'ar% per,%t+a kapal t ! w !
!
0"4 0"302 0 025
kot
!
k+m3
DATA PROPELLER )ata propeller %% 7ersal 'ar% type propeller ya+ tela, '%p%ll%," T%pe Propeller ! B3>35 )7=m ! 2"#0 m =P)7 ! 0"/45 8 propeller ! 0"#32 .pm Propeller ! /3 rpm
Ta*anan 'o'a a/a saa' .ean *+ "4ersi* 'ana &era .t
!
tr%al
2#"/#/ kN
Ta*anan 'o'a a/a saa' ser2i.e am4+ng 'ea* /i'emei oe* =o+ing .t
!
serH%ce
3-"444 kN
UNIT DAN )IMBOL a R 6T D 6
! ! ! ! ! !
6ostata kostata 6oes%e 9aya )oro+ =t,rst Bal%+>7al%+ 6oes%e 9aya A'Hace' Bal%+>7al%+ 6oes%e Tors% Bal%+>Bal%+ Tors%
LANG(AH PERHITUNGAN @! Meng*i'+ng (oe=isien 2 .t ! 0"5 x L x Ct x S x < s 2 .t ! α x
:! Meng*i'+ng &oe=isien R ! U= > t = > w2 L )2V
>! Mem4+a' (+r2a *+4+ngan (T-J )%maa 6TS$P '%perole, 'ar% rmsa 7er%kt 6T ! R x D2
?! Mem4a.a gra,& (TP.P 6 > 8 krHa ope water test Pem7acaa krHa '%lakka sesa% 'e+a Ee%s propeller ya+ k%ta p%l%,
5! Men/aa'&an 'i'i& oerasi roeer Setela, '%'apatka 6TS$P 'a 6TP.P**. maka ke'a krHa terse7t k%ta poto+ka" Perpoto+a terse7t merpaka t%t%k operas% propeller? '%maa k%ta aka me'apat %la%>%la% 7er%kt 6T !T,rst Coe%c%et 8 !%c%ecy 6 !TorXe CoeOc%et D !A'Hace' CoeOc%et )e+a '%keta,%ya %la% es%es% propeller ya+ 7ar maka 'apat '%koreks% kem7al ke7t,a 'aya motor pe++erak tama"
6! Mem4+a' Ta4e 9ean H+ 9on/i'ion /an )er2i.e 9on/i'ion a Me+,%t+ Ptara +%e 7 Me+,%t+ ptara Propeller Me+,%t+ ptara propeller 'apat '%lakka 'e+a mem7a+% ptara e+%e 'e+a ras%o +ear7ox" c Me+,%t+ Tors%= )alam me+,%t+ tors% ata torXe= k%ta 'apat me++aka rms: ! 6 x L x ) 5 x 2 (Dwi Priyanta Lecturer f ' Me+,%t+ )el%Here' $orse Power )e+a me+eta,% %la% tors% maka k%ta 'apat mecar% %la% )$P
(S.W.Adjie, n!ine Prope""
e Me+,%t+ Brake $orse Power )e+a me+eta,% %la% )$P maka k%ta 'apat mecar% %la% B$P
.msya a'ala,: )$PeY s,p=0"-( x eY 7ear%+=0"- x e B$P ! (S.W.Adjie, n!ine Prope"" η S .η B. .η G η = $%ien%i poro% =e$%ien%i &earin! η B η =e$%ien%i !ear &o' karea t%'ak memaka% +ear 7ox maka eOs%es% +ear7ox '%am7%l ! .msya a'ala,: DHP
S
G
.msya a'ala,:
" Me+,%t+ 6oes%e
α
@!Meng*i'+ng &oe=isien .t! 0"5 x L x Ct x S x Hs 2 .t! α x Hs2
!
.t
tr%al !
4/-0"//
tr%al
!
serH%ce
:! Meng*i'+ng (oe,sien R R ! U=>t =>w2 L )2V R
tr%al
!
R serH%ce !
"##
>! Mem4+a' (+r2a *+4+ngan (T-J 6T ! R x D2 D
D2
6Ttr%al
6TserH%ce
0 0" 0"2 0"3 0"4 0"5 0"# 0"/ 0"( 0"
0 0"0 0"04 0"00"# 0"25 0"3# 0"40"#4 0"(
0"00 0"02 0"0/ 0"5 0"2/ 0"4 0"#0 0"( "0# "34 "##
0"00 0"02 0"0/ 0"# 0"20"4# 0"## 0"("/ "4( "(2
Sesa% 'e+a 'ata '% atas '%'apatka krHa se7a+a% 7er%kt :
)*iFs (T ( T-J Diagram Diagr am 2"00
"50
"00
0"50
0"00 0
0"2
0"4
0"#
0"(
"2
Pem7acaa krHa krHa '%lakka sesa% 'e+a Ee%s propeller ya+ k%ta p%l%, ya%t B3>#5 =P)7 D 0 0" 0"2 0"3 0"4 0"5 0"# 0"/ 0"(
0"/45 06 0"45( 0"42 0"3(0 0"334 0"2(5 0"234 0"(0 0"2# 0"0/2
6T 0"353 0"320 0"2(4 0"245 0"203 0"50"3 0"0#/ 0"020
8 0 0"32 0"2#2 0"3(( 0"50( 0"#0"/0( 0"/43 0"55(
Oen Ca'er Tes' 9+r2e B>-65 0"(00 0"/00 0"#00 0"500
(-(T-
0"400 0"300 0"200 0"00 0"000 0
0"
0"2
0"3
0"4
0"5
0"#
0"/
0"(
0"-
J
merpaka t%t%k operas% propeller?
Ti'i& Oerasi Proeer a/a saa' 9ean "(00 "#00 "400 "200 "000 0"(00 0"#00 0"400 0"200 0"000 0
0"2
0"4
0"#
0"(
"2
Ti'i& Ti'i& Oer Oeras asii Proe Proeer er a/a saa' saa' Ro+g Ro+g 2"000 "(00 "#00 "400 "200 "000 0"(00 0"#00 0"400 0"200 0"000 0
0"2
0"4
0"#
0"(
)%maa k%ta aka me'apatka %la% se7a+a% 7er%kt @! Pa/a &on/isi .ean *+ :! Pa/a &on/isi ro+g* *+ 6T ! 0"5 6T ! 0"5 6 ! 0"0-6 ! 0"0204 D ! 0"52/ D! 0"52 8! 0"#4( 8! 0"#23 krHa e+%e eHelop '%'apatka 'ar% ta7el
"2
)ar% krHa krHa '% atas atas k%ta 'apat 'apat memoto+ memoto+a a 6T 6T ,ll 'e+a 'e+a 6t prop propeller? eller? se,%++ se,%++a a '% 'apat 'apat ,ar terse7t k%ta 7at +ar%s Hert%kal tk me'apatka ,ar+a 6T? 6T? 06 'a eOs%es%"
@! Pa/a &on/isi .ean *+
:! Pa/a &on/isi ro+g* *+ 0"52 D!
D ! 0"52/ 6 t ! 0 " 5
6t !
6X ! 0"0--
6X !
Y ! 0 "# 4 (
Y !
0"5 0"02040"#23
)ar%% ,ar+a )ar ,ar+a D ya+ ya+ '% 'apat 'apat '%ata '%atas s k%ta 'apa 'apatt me+eta me+eta,% ,% ,ar ,ar+a +a =ptar =ptara a pro propel peller ler ya+ ya+ 7ek 7ek
@! Pa/a &on/isi .ean *+ !
2" #3
rps
!
5/" 5-
rpm
ptara ma% e+%e !
5/"5-
ptara ma% e+%e !
#2"20
:! Pa/a &on/isi ro+g* *+ *+ !
2" /0
rps
!
#2" 20
rpm
.ps ! .pm #0
B$P ! )$P=89
! =6 x L x )75 x 2 )$P ! x x 2 S$P ! )$P )$P=8s87 =8s87
Ta7el '%atas merpaka per,%t+a Ta7el per,%t+a 'aya mes% pa'a ptara tertet 'e+a 'e+a ko'%s% lam7 =clea ,ll t%'ak a'a karat map 7%ata+ lat ya+ meempel pa'a lam7+ kapal=ol%
Pa/a &on/isi .ean *+ nengi ne
npr o pel l er
npr ope l l er
DHP
SHP
( r pm)
( r pm)
( r ps )
( kW)
( kW)
0
0. 00
0. 00
0. 00
0. 00
0. 00
10
10. 00
0. 17
0. 07
0. 07
0. 07
20
20. 00
0. 33
0. 27
0. 56
0. 57
30
30. 00
0. 50
0. 60
1. 89
1. 92
40
40. 00
0. 67
1. 07
4. 47
4. 56
50
50. 00
0. 83
1. 67
8. 73
8. 91
60
60. 00
1. 00
2. 40
15. 08
15. 39
70
70. 00
1. 17
3. 27
23. 95
24. 44
80
80. 00
1. 33
4. 27
35. 76
36. 49
90
90. 00
1. 50
5. 40
50. 91
51. 95
100
100. 00
1. 67
6. 67
69. 84
71. 26
110
110. 00
1. 83
8. 07
92. 95
94. 85
Q
120
120. 00
2. 00
9. 61
120. 68
123. 14
130
130. 00
2. 17
11 . 2 8
153. 43
156. 56
140
140. 00
2. 33
1 3. 0 8
191. 63
195. 55
150
150. 00
2. 50
1 5. 0 1
235. 70
240. 51
#0"00
160. 00
2. 67
17 . 08
286. 06
291. 89
/0"00
170. 00
2. 83
1 9. 2 8
343. 11
350. 11
5/"5-
173. 00
2. 88
1 9. 9 7
361. 60
368. 98
DHP
SHP
( kW)
( kW)
Pa/a &on/isi ro+g* *+ nengi ne
npr o pel l er
npr ope l l er
( r pm)
( r pm)
( r ps )
0
0. 00
0. 00
0. 00
0. 00
0. 00
10
10. 00
0. 17
0. 07
0. 07
0. 07
20
20. 00
0. 33
0. 27
0. 58
0. 59
30
30. 00
0. 50
0. 62
1. 94
1. 98
40
40. 00
0. 67
1. 10
4. 60
4. 70
50
50. 00
0. 83
1. 72
8. 99
9. 17
60
60. 00
1. 00
2. 47
15. 53
15. 85
70
70. 00
1. 17
3. 37
24. 66
25. 17
80
80. 00
1. 33
4. 40
36. 82
37 . 57
90
90. 00
1. 50
5. 56
52. 42
53. 49
100
100. 00
1. 67
6. 87
71. 91
73. 38
110
110. 00
1. 83
8. 31
95. 71
97 . 66
120
120. 00
2. 00
9. 89
124. 26
126. 79
130
130. 00
2. 17
11 . 6 1
157 . 98
161. 21
140
140. 00
2. 33
1 3. 4 7
197 . 32
201. 34
150
150. 00
2. 50
1 5. 4 6
242. 69
247 . 64
#0"00
160. 00
2. 67
17 . 59
294. 54
300. 55
#2"00
162. 00
2. 70
1 8. 0 3
305. 72
311. 96
/0"00
170. 00
2. 83
1 9. 8 5
353. 29
360. 49
/3"00
173. 00
2. 88
2 0. 5 6
372. 32
379. 92
Q
POWER PREDICTION 450"00 400"00 350"00 300"00
)
B H P (K W
250"00 200"00 50"00
clea ro+,
" 50"00 0"00 0"00
50"00
00"00
50"00
200"00
RPM
Engine En2eoe +%e Type Bore
350 mm
Stroke
400 mm
*ayt Po%t
+%e Spee'
*
/3
2-#0
*3
4/
23(0
*2
/3
2520
*4
4/
2020
Power
EPM 3500 *>*2
3000
*2>*4
2500
*3>*4
2000
*>*2
500
ro+, ,ll
000
clea ,ll
500 0 0
20
40
#0
(0
00
20
40
#0
(0
200
5"44
ms
ka
% 7esarya
r PKM 2)
r Matc#in!)
+ear=0"-( r Matc#in!)
52#-"(5
"(2
6T ! R x D2
6Ttr%al 6TserH%ce
0"33# 0"305 0"2/ 0"233 0"-3 0"5 0"0( 0"0#4 0"0-
6T propeller 8 propeller 06 propeller
or%+%al 0"4# 0"3(3 0"345 0"304 0"250"22 0"#4 0"5 0"0##
0 0"32 0"2#2 0"3(( 0"50( 0"#0"/0( 0"/43 0"55(
H+ 6T propeller
Perpoto+a D
Perpoto+a
0"52/
0
0"5
06 propeller
0"52/
0"
0"5
8 propeller
0"52/
0"2
0"5
0"52/
0"3
0"5
0"52/
0"4
0"5
perpoto+a 6T s,%p '+ 6T prop
0"52/
0"5
0"5
%la% eY
0"52/
0"#
0"5
0"52/
0"/
0"5
0"52/
0"(
0"5
6T tr%al
%la% 06 %la% 6T
Perpoto+a D
H+ 6T propeller 06 propeller 8 propeller perpoto+a 6T s,%p '+ 6T prop %la% eY %la% 06 %la% 6T 6TserH%ce
Perpoto+a
0"52
0
0"5
0"52
0"
0"5
0"52
0"2
0"5
0"52
0"3
0"5
0"52
0"4
0"5
0"52
0"5
0"5
0"52
0"#
0"5
0"52
0"/
0"5
0"52
0"(
0"5
a D 'a 'ar% perpoto+a
erEa pa'a eOs%es% terse7t"
rpm
rpm
+ kapal ya+ mas%, 7ers%, +"
BHPSCR
RPM
BHPSCR
( kW)
( %)
( %)
0. 00
0. 00
0. 00
0. 07
5. 78
0. 00
0. 58
11. 56
0. 03
1. 96
17 . 34
0. 09
4. 65
23. 12
0. 21
9. 09
28. 90
0. 41
15. 71
34. 68
0. 71
24. 94
40. 46
1. 13
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46. 24
1. 69
53. 01
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2. 40
72. 72
57 . 80
3. 30
96. 79
63. 58
4. 39
125. 66
69. 36
5. 70
159. 76
75. 14
7 . 25
199. 54
80. 92
9. 05
245. 42
86. 71
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29 7 . 85
92. 49
13. 51
35 7 . 26
98. 27
16. 20
91. 09
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3 76 . 5 1
BHPSCR
,ll
BHPSCR
( kW)
( %)
( %)
0. 00
0. 00
0. 00
0. 07
5. 78
0. 00
0. 60
11. 56
0. 03
2. 02
17 . 34
0. 09
4. 79
23. 12
0. 22
9. 36
28. 90
0. 42
16. 17
34. 68
0. 73
25. 68
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1. 16
38. 34
46. 24
1. 74
54. 58
52. 02
2. 48
74. 87
57 . 80
3. 40
99. 66
63. 58
4. 52
129. 38
69. 36
5. 87
164. 50
75. 14
7 . 46
205. 45
80. 92
9. 32
252. 70
86. 71
11. 46
3 06 . 6 8
92. 49
13. 91
3 18 . 3 3
93. 64
14. 44
36 7 . 85
98. 27
16. 68
10 0. 00
17 . 58
38 7 . 67
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RPM
5Q 0"353 0"320 0"2(4 0"245 0"203 0"50"3 0"0#/ 0"020
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Propeller Drawing (Ae, Ad, Ap) Da'a 'e&nis roeer 1ang /i4+'+*&an +n'+& er*i'+ngan Type
Wa+e%+e B3>35
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0"35
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Dimensions o= >-4a/e/ Cageningen B-series r/R 0"200 0"300 0"400 0"500 0"#00 0"/00 0"(00 0"(50 0"-00 0"-50 "000
"#33 "(32 2"000 2"20 2"(# 2"#( 2"2/ 2"005 "#5/ "434
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a /c r r
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b /c r r
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>>>
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0"053 0"04# 0"040 0"034 0"02( 0"022 0"05 0"0 0"000"00/ 0"003
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or P * face= -(t /a' 0 t "e )
or P + * face= -(t /a' 0 t te )
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&ac1 = (- -2) (t /a' 0 t te )
%a+e o= %@
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Dis'ri4+si Pi'.* )%ameter Propeller
!
3"(- m
P)7
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Pi$c% Di&$rib'$ion o! - Propeller r.
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(*o&e Rad) 0"00( 0"00/ 0"00# 0"004 0"002 0"00 0"000 0"000 0"000 0"000 >>>
Screw Propeller ,lm"/2 aEtka pa'a peeta peampa+ kete7ala t%ap
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porpeller Ee%s B>3 '%str%7s% p%tc, a'ala, se7a+a% 7er%kt
A
Perencanaan Poros Propeller
A!@
Peren.anaan Diame'er Poros Proeer Ds
= [(5.1/Ta) x KT x Cb x T] 1/3 )s ! )%ameter Poros Propeller =mm Ia ! Te+a+a +eser ya+ '%%E%ka =6+mm 2 6t ! 1aktor 6osetras% Te+a+a C7 ! 1aktor Be7a *etr T ! Mome pt%r recaa =k+ mm
A!@!@ Da1a Peren.anaan "P/# Pd = fc x p c ! 1aktor koreks% 'aya p ! )aya pa'a poros =S$P 'alam kw ta7el aktor>aktor koreks% 'aya ya+ aka '%trasm%s%ka fc 'aya ya+ aka '%trasm%s%ka
fc
=)aya .ata > .ata
"2 > 2"0
=)aya Maks%mm
0"( > "2
=)aya ormal
"0 > "5
'%am7%l fc = "5 %la% S$P '%am7%l 'ar% per,%t+a se7elmya S$P ! 2#4#"00 $P -/3"-2 kW Ea'% P' ! 2-#0"(/ kW
A!@!: Momen P+n'ir Ren.ana "T# T ! -"/4 x 0 5 x =P'N T ! Mome pt%r recaa =k+ mm N ! ptara poros =rpm P' ! )aya perecaaa =kW %la% N a'ala, ptara propeller 'alam rpm N! #2"20 rpm Ea'% T ! ///-#44"# k+ mm
A!@!> Tegangan Geser 1ang Diiin&an "8 a# Ia ! J7=sxs2 material poros adalah:
58 S 45 C,σb= sf 1 = #$%# "a%&'a ba*a a'b+$= sf 2 = 1.3 3 da"b= Ea'% Ia !
4"20
6+mm2
!/""2 6 2.3
A!@!? Ka&'or (onsen'rasi Tegangan "&'# 6t ! 6t ! 6t ! )%am7%l 6t !
"0 "0>"5 "5 > 3"0 "5
= Tm7ka ,als = Se'%k%t tm7ka = Tm7ka kasar
A!@!5 Ka&'or Be4an Len'+r "94# C7 ! C7 ! )%am7%l C7 !
"0 "2 2"3 2"0
= T%'ak me+alam% letra = Me+alam% letra
A!@!6 Diame'er Poros Proeer "Ds# Ds
= [(5.1/Ta) x KT x Cb x T] 1/3 ! 40"50 mm [ 450 mm A!@!7 Tegangan Geser yang Bekerja ( 8) I! 5"@T =)s3 !
"00
6+mm2 Ia
persyarata 7a,wa se,%++a persyarata te+a+a +eser
A!:
4"20 meme,%
I "00
Per*i'+ngan Pers1ara'an Pem4an/ing Ber'asarka ABS .les 200# Part 4 C,apter 3 Sect%o 2 ,al 200
T,e m%%mm '%ameter o propls%o s,at%+ %s to 7e 'eterm%e' 7y t,e ollo
D ! reX%re' sol%' s,at '%ameter? except ,ollow s,at\ mm =mm? % ; ! power at rate' spee'\ kW =PS? ,p = PS ! /35W\ ,p ! /4#W K ! s,at 'es%+ actor? see 4>3>2Ta7le or 4>3>2Ta7le 2 3 ! rate' spee' rpm < ! m%%mm spec%e' lt%mate tes%le stre+t, o s,at mater%al =re+ar'less o t,e actal m%%mm spec%e' tes%le stre+t, o t,e mater%al? t,e Hale o < se' % t,ese calclat%os %s ot to excee' t,at %'%cate' % 4>3>2Ta7le 3\
$!
-/3"-2
6!
"2#
.!
#2"20
F!
(00
c !
5#0
6W ABS 3u"e% 2**4 Part 5 6#apter .PM ABS 3u"e% 2**4 Part 5 6#apter
c2 !
#0 )s
Ea'%
!
242"5((-
mm
[
242
mm
m%
)s 450
syarat '%ameter 7a,wa
Se#in!!a
B
syarat '%ameter poros
meme,%
)s
m%
242
PERENCANAAN PERLENGKAPAN PROPELLER PERHITUNGAN BO PROPELLER B!"
#$a%e&er Boss Propeller (#')
Db = -.16 Dp'+p 640.63 = %' = -.-45 x Dp'+p 15.-5 = B!
"" tr ,arsya 0"45 x )prop
""
#$a%e&er Boss Terkec$l (#'a)
Dba/Db = -.85 sa"pa -.0, da"b -.0 = -.0 Db 62-.4Dba = ""
B!
#$a%e&er Boss Propeller Ter'esar ( #'*)
skala
#'*+#' ,
B!-
1.-5 sa"pa 1.1, Da"b 1.1 = 1.1 x Db #'* , 15 ""
Panjang Boss Propeller (L') L'+#s, 1.8 sa"pa 2.4, Da"b 2.1
= 2.1x Ds L' , 045 B!.
""
Panjang L/'ang #ala% Boss Propeller (Ln)
B!.!"
Ln+L', -.3 , -.3 b Ln, 284
B!.!
""
&'+&r, -.5 , -.5 x %' &' , 131
B!.!
""
r*+&r, -.5 , -.5 x %' r*, 131
B!.!-
r'+&r, 1
= 1 x %' r', 15 B!0
Te'al lee1e (s) 2en/r/& BKI III "344 &e'al slee1e a5ala67
S -.-3 Ds -.5 *ad S 14.25 C
""
BENTUK U8UNG PORO PROPELLER C!" Panjang Kon$s
Pa$*a$! K+$s a%a# b b&'sa' a$%a'a 1.8 sa"pa 2.4 da"&%&' p+'+s Da"b, b = 2.4 x Ds = 1-8""
2
C! Ke%$r$ngan Kon$s
'+ Kasfas $d+$&sa "&$a'a$a$ 7a'!a &"'$!a$ +$s b&'sa' a$%a'a 1/1x= 1/15 x b = 0"" C! #$a%e&er Terkec$l Uj/ng Kon$s
Da= Ds 29x = 2[ 285
"" ""
142.5
#
2UR PENGIKAT PROPELLER
&'dasa'a$ K 1008 :+. ab : #!" #$a%e&er Ul$r L/ar (5)
"&$#'#% K;8 :+. , da"&%&' #a' #'(d) da"&%&' +$s a$! %&'b&sa' < d -.6 x Ds d 2"" Da"b d = 2"" #! #$a%e&er In&$
Da' s#a's+ #$%# da"&%&' #a' #' 3 "", "aa da"&%&' $% adaa7 < d= -.8 x d = 216 "" #! #$a%e&er L/ar 2/r (#o)
D+ = 2 x d =
54-
""
#!- Te'al+T$ngg$ 2/r (H)
Da' s#a's+ #$%# ##'a$ s%a$da' %&ba "#' adaa7 (-,81) da"&%&' p+'+s, > = -.8 x d sehingga: = 216 "" E
PERENCANAAN PAAK PROPELLER
S#"b&' #$%# p&'&$ca$aa$ pasa da"b da' b## Dasa' P&'&$ca$aa$ da$ P&"7a ?s.?&;. Daa" "&$&$%#a$ d"&$s da$ sp&sfas pasa p'+p&&' a$! dp&'#a$, b&'#% E!"
2o%en Tors$ (2&) Pa5a Pasak 9
M t
D H P x =
D"a$a =
7
x "$
! xπ xN
kg .m
?T= ?+"&$ T+'s (K!.") D>P= D&@&' >+'s& P+A&' (>p) B= K&c&pa%a$ P#%a' P'+p&&' (p")
8a5$ 9
= E!
842-
K!."
Para%e&er yang #$'/&/6kan
E!!" #$a%e&er Poros (#s)
s&s#a p&'7%#$!a$ s&b&#"$a
450 ""
Ds =
E!! Panjang Pasak (L)
Pa$*a$! pasa () a$%a'a (-,5F1,5) Ds da' b## DP da$ P? 7a. 2,(da"b 1,3) L, 1.5 x Ds , 65 "" da"b = 65 "" E!! Le'ar Pasak (B)
&ba' pasa () a$%a'a 25G 3-G da' da"&%&' p+'+s "&$#'#% b## DP da$ P? 7a 2, (da"b 2.5 G) B, 2.5G x Ds , 123.8 "" E!!- Te'al Pasak (&) &, 1/6 x Ds
5
,
""
E!!. Ra5$/s Uj/ng Pasak (R)9 R, -.125 x Ds ,
56.3
""
E!!0 L/as B$5ang Geser (A) 9 A, -.25 x DsH2 ,
5-625
"" ""
a "+"&$ '&$ca$a T d%&a$a$ pada s#a%# da"&%&' p+'+s (Ds), "aa !aa s&$%' p+'+s adaa7 < T
= 9 7) × 1$ × = I=
///-#44
÷ N
Pd
!"" =
1.0644164 91-H""
T
$. xDs
=
0-2-.64
K!""2
S&da$!a$ %&!a$!a$ !&s& a$! d*$a$ (Ia) #$%# p&"aaa$ #"#" pada p+'+s %a' Jb d&$!a$ fa%+' &a"a$a$ (Sf 1 x Sf 2), s&da$! 7a'!a #$%# Sf #"#"$a %&a7 d
Sf 1 = #"#"$a ("a%&'a ba*a) da"b Sf 2 = 1,- F 1,5 , *a b&ba$ d&$aa$ s&ca'a %ba%ba
6
1,5 F 3,- , *a b&ba$ d&$aa$ %#"b#a$ '$!a$ 3,- F 5,- , *a b&ba$ d&$aa$ s&ca'a %ba%ba da$ %#"b#a$ b&' Ka'&$a b&ba$ pada p'+p&&' d&$aa$ s&ca'a %ba%ba, "aa da"b Sf 2= . a7a$ pasa d!#$aa$ S 45 C d&$!a$ 7a'!a σb = σ b
Ika !
s 1 xs ! Ika !
#"44
k+mm2"
Se'a+ka te+a+a +esek ya+ terEa'% pa'a pasak a'ala, \ " Ik ! Bx!
Ik !
0"-5
k+mm2"
Ika
6area %la%
] ]
#"44 "aa %&!a$!a$ !&s& pasa %&'s&b#%
Ik -.046-"&"&$#7
E!!: Pena%pang Pasak
= =
x% 0281
""2
E!!4 Ke5ala%an Al/r Pasak (&")
-.5x% 38
%1= = E!!3 De'ai r5
""
Pasa& ! 5 mm r4 r3 r2 r r4
! # mm
r3
! 5 mm
r2
! 4 mm
r
! 3 mm
r#
!
0"5 x B
r#
!
#"((
mm
; KOPLING
K+p$! d'&$ca$aa$ s&ba!a b&'#% Jumlah Baut Kopling
9 D'&$ca$aa$ =
8
b#a7 ba#%.
" Uk/ran Kopl$ng < panjang &$r/s (BKI) /n&/k kopl$ng 9
= (1.25 F 1.5) x Ds da"b = 1.5 x Ds *ad,= < Ke%$r$ngan &$r/s 9
65
=
65
""
$%# +$s +p$! a$! %da %&'a# pa$*a$! "aa d'&$ca$aa$ $a %&'&$da7$a #$%# "&$!7%#$! &"'$!a$ < x = 1/1- x = 6.5 "" < #$a%e&er &erkec$l /j/ng &$r/s 9
Da = Ds F 2 x =
315
""
135-
""
< #$a%e&er l/ar kopl$ng 9
D+#% = (3 F 5.8) x Ds Da"b, D+#% = 3 x Ds = = < Ke&e'alan *lange kopl$ng
&'dasa'a$ K :+#"& s&c%+$ 4
× #w n× D
Pw
Sf = #7$ × pA CA $ D
;ak&or 2a&
= 'aya perecaaa = 1aktor mater%al = ptara propeller =rpm = '%ameter lar kopl%+ ya+ '%recaaka Sf = 3.2 = 38 ""
σb = +!
< #$a%e&er l$ngkaran 'a/& kopl$ng 9
Db= 2.6 x Ds = 2.6 x 45= 11-
""
< Panjang Kopl$ng
= (2.55.5)Ds x -.5 = 1125 "" Ba/& Peng$ka& ;lens Kopl$ng < #$a%e&er 2$n$%/% Ul$r 'a/& Kopl$ng (#*) a5ala6 9
&'dasa'a$ K 1088 :+#"& s&c%+$ 4D 4.2 " Pw ⋅ 1$ Df= 16 x n
⋅ D ⋅ % ⋅ $m
D"a$a <
PA= S>P (L) D= Da"&%&' ba#% a$! d'&$ca$aa$ "= &#a%a$ %a' "a%&'a B/""2 $= p#%a'a$ p+'+s(= p#%a'a$ p'+p&&' daa" 'p") M= N#"a7 a#% (8) b#a7
Nad < Df= =
d= =
24.220
1!
""
SH P .1$
"
N . D b . % . $m
18.15
=
18
da"&%&' #a' "#'
D+ = D+ =
2 x Df 58
T$!! ba#% >= >=
(-,8 1) x Df
23.2
2/r Peng$ka& ;lens Kopl$ng < #$a%e&er Ul$r L/ar (5)
"&$#'#% K;8 :+. , da"&%&' #a' #'(d) da"&%&' +$s a$! %&'b&sa' < d -.6 x Ds d -.6 x 45d 2"" Da"b d = 2"" < #$a%e&er In&$
Da' s#a's+ #$%# da"&%&' #a' #' 3 "", "aa da"&%&' $% adaa7 < d= -.8 x d = 216 "" < #$a%e&er L/ar 2/r
D-= 2 x d D-=
54-
""
>= (-.81)d >= 216
""
< T$ngg$ 2/r
; PERENCANAAN PAAK KOPLING a! Ba6an Pasak =ang #$g/nakan a5ala6 -. C 5engan pes$*$kas$ e'aga$ Ber$k/& 9
9 9 9
σb = 58 Sf1 = 6 Sf2 = 1.5
'! Tegangan Geser =ang #$$j$nkan (>ka) 9
Ika ! J7=sxs2 = 6.44 c! Gaya Tangens$al Per%/kaan Poros (;) 9 T
= 9 7) × 1$ ×
÷ N
Pd
K!/""2
=
=
10644.16
1.8
!""
S&da$!a$, I= 2T/Ds = 0-2-.64
K!
5! Le'ar Pasak (B) 9
= (-.25-.35)Ds = -.25945= 112.5 = 113
"" ""
e! panjang pasak
D&$!a$ Sa'a% %a
%, "aa $a OO dapa% d&%a7# s&ba!a b&'#% < ≥ Ik ! 1 = B"* Ika ] Ik
≥
Ika ] 1 = B"* * ] 1 = B"Ika
1-8.00 ≥ Sa'a% pasa (-.5 F 1.5) x Ds , daa" p&'7%#$!a$ $ da"b $a -.5 J = 33.5 "" S&7$!!a pa$*a$! pasa da"b = 338 "" *! Te'al Pasak (&) 9
%= 1/6 x Ds
D"a$a
""
= -.125 x Ds = 56
""
g! Ra5$/s Uj/ng Pasak 9
6! L/as B$5ang Geser (A) 9
= -.25 x DsH2 5-625
""
$! Ke5ala%an Al/r Pasak Pa5a Poros (& ") 9
%1= 5-G x % = -.5 x 5 = 3.5
""
j! Ke5ala%an Al/r Pasak Pa5a na* (& ) 9
%2= % %1 %2= %2=
38 38 "" D sa"p$! p&'7%#$!a$ d a%as, *#!a dp&'#a$ p&'7%#$!a$ #$%# "&$!7$da' da' &'#saa$ p&'"#aa$ sa"p$! pasa a$! ds&baba$ +&7 %&a$a$ bda$!. Daa" 7a $ %&a$a$ p&'"#aa$ P (!/""2) , adaa7 J
P= I/ x % 3.12 = K!/""2 >a'!a %&a$a$ p&'"#aa$ #$%# p+'+s d&$!a$ da"&%&' a$! b&sa' ( 1-- "") adaa7,Pa = 1- !/""2. Ka'&$a 7a'!a PQ Pa, "aa d&$!a$ d"&$s %&'s&b#% %&a7 "&"&$#7 p&'sa'a%a$.
BAB ? PERENCANAAN TERN TUBE
S%&'$ %#b& "&'#paa$ %ab#$! p+'+s a$! d!#$aa$ s&ba!a "&da p&#"asa$ p+'+s p'+p& dapa% b&'f#$!s s&ba!a p&$&a% *a %&'*ad &b+c+'a$. Pada p&'&$ca$aa$ $, s&ba!a p& "$a. P&'&$ca$aa$ s%&'$ %#b& adaa7 s&ba!a b&'#% < A! 8en$s Pel/%asan
N&$s p&#"asa$ p+'+s p'+p&&' apa $ d'&$ca$aa$ "&$!!#$aa$ ss%&" p&#"a B! Panjang Ta'/ng Poros Propeller (Ls) 9
Pa$*a$! s%&'$ %#b& ds&s#aa$ d&$!a$ *a'a a$%a'a s%&'$ p+s% d&$!a$ s&a% b&aa$! a"a' "&s$ daa" 7a $ dp&'+&7 b&'dasa'a$ *a'a !ad$! a%# 6-- "" s&7$!!a dp&'+&7 < Ls, 4 x *a'a !ad$! Earak +a'%+ ! mm 6-= 24-"" C! Perencanaan Ban&alan 9 Berdasarkan dari BKI 1988 vol. III Sec. IV.
$! Ba6an 'an&alan yang 5$g/nakan a5ala6 9 Lignum Vitae $$! Panjang Ban&alan Belakang (Lsa) 9 Lsa,
=
2 x Ds 0--
""
$$$! Panjang Ban&alan #epan (Ls*) 9 Ls*, -.8 x Ds
=
36-
""
$1! Te'al Ban&alan (B) 9
?enurut BKI III 1988 %&ba ba$%aa$ &f&%f adaa7 s&ba!a b&'#% < =
Ds × # 17 #$
= 4.625
""
""
48
1! 8arak %a@$%/% yang 5$$j$nkan an&ara 'an&alan + 'ear$ng (l% l%a@ , 1 x (DsH-.5)
D"a$a, 1 =
28-35- (#$%# p&#"asa$ d&$!a$ a' a#%) = 688.23 "" 68-""
1$! R/%a6 'an&alan (Bear$ng B/s6$ng )
a. a7a$ #s7$! &a'$! a$! d!#$aa$ adaa7 < "a$!a$&s& b'+$ b. T&ba #s7$! &a'$! ( %b ) &', -.18 x DS &', 81 ""
#! Te'al &ern T/'e (T) 9
T=
Ds !. + # × !$
= 41.55
42
"" ""
E! Perlengkapan Pack$ng 9
Da' ?a'$& $!$&&'Rs >a$db++, "&$!7%#$! b&sa'$a < d1 = da"&%&' %&"pa% pac$! d = da"&%&' ba#% p&$&a$ pac$! 1 = pa$*a$! %&"pa% pac$! % = %&ba da' '#"a7 pac$! %1 = %&ba fa$!& '#"a7 pac$! %2 = %&ba fa$!& p&'"#aa$ pac$! Ds= 45"" B= N#"a7 a#% $! #$a%e&er 'a/& penekan pack$ng (5 B)
Db= 1.6[(-.12 x D) 12.] / B = 1.6[(-.12 x 45-) 12.] / 8 = 26.68 "" da"b da"&%&' ba#% p&$&a$ pac$! = 2 "" $$! #$a%e&er L$ngkaran Ba/& 9
D1= 2 x Ds 0--
#",
""
$$$! Penekan Pack$ng (&) 9 &a , (-.1 x Ds 15)
=
6-
""
&', (-.1 x Ds 3.3)
= 48.3
"" ""
5-
$1! Clearance (s) 9 s, -.-4 x Ds -.2
=
18
""
1! Te'al Pack$ng (&pac) 9
T&ba Pac$! a$! dsa'a%a$ adaa7 1 2D s #$%# Ds = 45- "" d'&$ca$aa adaa7 2- sa"pa d&$!a$ 4- "", da"b %pac=
4-
""
1$! Panjang Pack$ng (6) 9 6, 3 x %pac
=
12-
""
1$$! Panjang Te%pa& Pack$ng (l ") 9 l", (-.4 x Ds) 1
= 0-.5664 15--
"" ""
;! &ern Pos& 9 Berdasarkan BKI vol. III tahun 1988 hal 96.
T$!! b#'%a$ b&'b&$%# s&! &"pa% #$%# pa$*a$! apa 1-3 ", "aa < $! Le'ar , (1.4 ) 0D"a$a < = 1-3 = (1.4 x 1-3) 0= 234.2 "" 24"" $$!
&e'al 5$n5$ng 'oss 5ar$ propeller,
= -.6 x 7 = 2 $$!
""
T$ngg$, (1.6 ) 15
= (1.6 x 1-3) 15 = 10.8 18""
G! Perencanaan G/ar5 9
P&'&$ca$aa$ !a"ba' #$%# !#a'd adaa7 s&ba!a b&'#% < . Pa$*a$! U#a'd = 10- "" . T&ba U#a'd = 2- ""
%+ eXat%o
7 Section, 2 587829:a&"e 2 7 Section 2, 587829:a&"e 7 8 8
, 8 8
5/"44(
: 0 Db = #5"0 Dba = #2"0 Dbf = /"5 b = -4"5 %b = 3" r*, 3" r', /"5 Ds = 45"0 Da= 2("5 Ln, 2("4
sa"pa 1/15. Da"b s&b&sa' = 1/15
d d D+ >
&"&$ ?&s$ a'a E'. S+&a's+
#'#%a$ p&'7%#$!a$$a <
= = = =
2/"0 2"# 54"0 2"#
#!a (I) a$! %&'*ad pada p&'"#aa$
dp&'+&7 d&$!a$ "&"ba! &#a%a$ %&$%#a$ J
a% 58
1.5 !/""2.
r$al 9
CL = 56- / ( " 16- ) Dimana, Rm = σb x ! = 568.4 te+a+a +eser ya+ '%%E%ka +aya +raH%tas% =-"( Nad, CA = 56- / (568.4 16- ) = -.
6.5
P Stern tube merupakan tabung por dapat berfungsi sebagai penyekat jika t Perencanaan stern tube adalah sebaga ' d&$!a$ b&a'$! *#!a "as p+'+s d!#$aa$ A. Jenis Pelumasan
enis pelumasan poros pelumasan air laut. B. Panjang Tabung Poros
a$ a' a#%.
Panjang stern tube disesu belakang kamar mesin dal 600 mm sehingga diperol Ls
= = C. Peren!anaan Ban"alan : i. Ba'an ban" ii. Panjang Ba Lsa
= iii. Panjang Ba Ls%
= i&. Tebal Ban"al
B=
= &. Jara# ma*i lma*
'imana, k% = = =
a@) 9
&i. Ruma' ban"
a. Bahan Bu b. "ebal Bus
M& $. Tebal S"ern Tube (T) :
"=
Ds + # !$
= %& E. Perleng#apan Pa!#ing :
0"3 5"5 "/
'ari (arine )ngineer*s + d% = diamet dB = diame l% = panjan t = tebal d t% = tebal fl t = tebal fl 's=0 -= umlah Baut i. $iame"er bau" pene#an
'b= %.6#0.% / ' = %.6#0.% / 5 = 1.%707& ii. $iame"er Ling#aran Bau
'%= / 's $, 0 iii. Pene#an Pa!#ing (") : "a #0.% / ' s %
= %8
"b #0.% / ' s 5.
=5.5 "!4
i&. Clearan!e (s) : s 0.07 / 's
=0. &. Tebal Pa!#ing ("pa!) :
"ebal Packing yang disya tebal rumah packing adal diambil tpac= &i. Panjang Pa!#ing (') : ' 5 / tpac
%&ba '#"a7 pac$!
= 5 / 70 =%0 &ii. Panjang Tempa" Pa!#in l, #0.7 / 's$
=% -. S"ern Pos" :
"inggi buritan berbentuk s i.
Lebar
= = ii.
Tebal
= = . Peren!anaan uar :
"
Perencanaan gambar unt i. Panjang ; ii. "ebal ;ua
RENCANAAN STERN TUBE s yang digunakan sebagai media pelumasan poros propeller dengan bearing juga erjadi kebocoran. Pada perencanaan ini, sebagai pelumas poros digunakan air laut. i berikut :
propeller kapal ini direncanakan menggunakan sistem ropeller (Ls) :
aikan dengan jarak antara stern post dengan sekat am hal ini diperoleh berdasarkan jarak gading yaitu h: 7 / jarak gading 7 / 600 700 mm
lan ang iguna#an aala' : Lignum Vitae "alan Bela#ang (Lsa) :
/ 's 0
mm
"alan $epan (Ls%) :
0. / 's 0
mm
an (B) :
Ds × #17
#$ 0
mm
um ang iijin#an an"ara ban"alan + bearing (lma*) :
k% / #'s0.8$ 0 > 580 #untuk pelumasan dengan air laut$ 580 / #51&0.8$ 0 mm alan (Bearing Bus'ing )
hing Bearing yang digunakan adalah : manganese bron!e ing Bearing # tb $ "b 0.% / 'S "b 0 mm
!.) )
mm
ndbook, menghitung besarnya : er tempat packing er baut penekan packing g tempat packing ri rumah packing ange rumah packing ange permukaan packing mm
a!#ing ( B)
$ %.12 3 4&$ %.12 3 4 mm :
mm
$ mm
5$ mm
. mm
atkan adalah % < 4' s untuk 's = 51& mm direncanakan h 0 sampai dengan 70 mm, 70 mm
mm (l,) :
mm egi empat untuk panjang kapal 9 %07 m, maka : #%.7 9$ &0 'imana : 9 = %07 m #%.7 / %07$ &0 58.6 mm #%.6 9$ %8 #%.6 /%07$ %8 %%.7 k guard adalah sebagai berikut : ard = %&0 mm d = 0 mm
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