Forces are generated at the tire contact patch during various maneuvers of the car and transferred to the chassis through the suspension links. Calculating the forces on every link is important to ...
Peak Maximum outsurge of-balance pressure force (inc valve characteristic) Pa kN Psurge Fmax
Calculation of limit force Selected Wall Limit support thickness/ force stiffness schedule 40 wall kN ψ Flim
-2.21E-01
4.47E+05
39.7
4
1.0
72
-2.66E-01
5.61E+05
4.6
4
1.0
2
-2.16E-01 -1.94E-01 -1.62E-01
1.10E+06 9.79E+05 8.03E+05
72.2 64.1 3.4
4 4 4
1.7 1.7 1.3
84 84 1
NFU Line number
Area
System
Fluid density
Fluid properties Fluid bulk Upstream Steady modulus static state fluid pressure velocity N/m2 K 9.77E+08 9.77E+08
Pa P1 1.71E+06 1.71E+06
m/s v 1.89 3.62
N/m2 Eml 2.00E+11 2.00E+11
Young's modulus of main pipe
Main pipe properties Outside diameter of Pipe wall Schedule pipe thickness 40 pipe (actual) wall thickness inch mm mm mm Dext Dext T T40 6.625 168.275 7.11 7.11 6.625 168.275 7.11 7.11
Actual length of pipeline
Sonic velocity
m L 2128 220
Length of pipeline between changes in m Lup 250 220
m/s C 1226 1226
Maximum Maximum surge out-ofpressure balance force Pa kN Pmax Fmax 1.51E+06 28.1 2.88E+06 53.8
sec Tsud 3.5 0.4
Actual valve closure time sec Tclose 36.25 36.25
Valve type and characteristic Full bore Reduced Butterfly Globe ball bore ball
LPG from PRU to alkylation unit pure isobutane from alkylate storage bullet to alkylation unit HDT HVY naphtha from NFU to GT distillate tank SR naphtha from AVU to MS blending/ MS regular tanks