CATIA V5R16 Overview – Toy Excavator Excavator
Tutorial 1D (supplement) Highlight of Tutorial 1D -
Create simulation joints Create a simulation file (avi format)
C (1)
Open Up Upper_a _ass ssm m_a _a..CATProduct: ct:-
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After Tutorial 1C, we should have four undefined degrees of freedom:
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A: Angle Angle (Exha (Exhaust ust – Body) Body) B: Angl Angle e (ArmSu (ArmSupp pport ort – Bac BackA kArm) rm) C: Angl Angle e (Bac (BackAr kArm m – Front FrontAr Arm) m) D: Angle Angle (Bucket (Bucket – FrontAr FrontArm) m)
A B
D
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CATIA V5R16 Overview – Toy Excavator Excavator
Tutorial 1D (2) Convert Assembly Constraints into Simulation Joints:-
Select “Start/Digital Mockup/DMU Kinematics” Kinematics” on the the top top menu menu Click “Assembly Constraints Conversion” Conversion ” icon Click “New Mechanism” Mechanism” but butto ton n on the the poppopup menu Click ok to accept the default name “Mechanism.1” Click “Auto Create” Create” butt butto on Click ok to complete (A new mechanism is created, which can be seen on the product tree)
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CATIA V5R16 Overview – Toy Excavator Excavator
Tutorial 1D (3) Define Simulation Joints:-
Revolute.1” joint Double-click “Revolute.1” joint (back_a (back_arm rm.1, .1, arm_support.1) on the tree Select “Angle driven” driven” opti ption Click ok to complete Double-click “Revolute.3” Revolute.3” joint joint (front_ (front_arm arm.1, .1, back_arm.1) on the tree Select “Angle driven” driven” opti ption Click ok to complete Double-click “Revolute.6” Revolute.6” joint joint (exhau (exhaust. st.1, 1, body.1) on the tree Select “Angle driven” driven” opti ption Click ok to complete Double-click “Revolute.7” Revolute.7” joint joint (buc (bucket ket.1 .1,, front_arm.1) on the tree Select “Angle driven” driven” opti ption Click ok to complete (Finally, a menu pops up, saying that the A- 7 9 mechanism can be simulated)
CATIA V5R16 Overview – Toy Excavator Excavator
Tutorial 1D (4) Hide all Constraints:-
Right-click on Constraints on the tree Select Hide/Show
(5) Open Excavator_a.CATProduct:-
(The current workbench should still be DMU kinematics; if not, change it)
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After Tutorial 1C, we should have one undefined degree of freedom for this assembly:
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E: Angle Angle (Base – UpperAs UpperAssembly sembly))
E E
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CATIA V5R16 Overview – Toy Excavator Excavator
Tutorial 1D (6) Convert Assembly Constraints into Simulation Joints:-
Click “Assembly Constraints Conversion” Conversion ” icon Click “New Mechanism” Mechanism” but butto ton n on the the poppopup menu Click ok to accept the default name “Mechanism.1” Click “Auto Create” Create” butt butto on Click ok to complete (A new mechanism is created, which can be seen on the product tree)
(7) Define the Simulation Joint:-
Double-click “Revolute.1” Revolute.1” joint joint (back_a (back_arm rm.1, .1, arm_support.1) on the tree Select “Angle driven” driven” opti ption Click ok to complete (Finally, a menu pops up, saying that the mechanism can be simulated) A- 8 1
CATIA V5R16 Overview – Toy Excavator Excavator
Tutorial 1D (8) Import another Mechanism from the sub-assembly:-
Click “ Import Sub-mechani S ub-mechanisms sms”” icon (A menu pops up, saying that “1 submechanism has been imported successfully”) (On the tree, we can see two mechanisms)
(9) Create a Simulation:-
Click “Simulation” Simulation ” icon Multi-Select “Mechanism.1” Mechanism.1 ” and “Upper_assm.1\Mechanism.1 Upper_assm.1\Mechanism.1”” Click ok to proceed
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CATIA V5R16 Overview – Toy Excavator Excavator
Tutorial 1D (9) Create a Simulation (Cont’):-
(We should have three menus as shown)
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We can now modify the angle and then record record its position position by clicking “Insert” “Insert” icon
Base-UpperAssembly
BackArm-ArmSupport
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FrontArm-BackArm
Film#1:
Bucket-FrontArm
Command.1.1 = 40 (Then Insert) Insert)
Exhaust-Body
Film#2: -
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Command.1.1 = -10 Command.2.1 = -60 (Then Insert) Insert)
Film#3: -
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Command.1.1 = 15 Command.2.1 = 0 Command.3.1 = -100 (Then Insert) Insert)
Film#4: -
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Command.1 = 90 (Then Insert) Insert)
Film#5: -
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For Example
Command.3.1 = 30 (Then Insert) Insert)
Click ok to complete (Simulation 1 is created on the tree)
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CATIA V5R16 Overview – Toy Excavator Excavator
Tutorial 1D (10) Refine Environment Settings (optional):-
Right-click on Constraints on the tree and the select Hide/Show
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To improve the resolution, select “Tools/options…/Gener Tools/options…/General/Display/Perf al/Display/Performan orman ces/3D Accuracy/Fixed Accuracy/Fixed”” on the the top top menu menu and and change it to 0.01(smallest value) Change the shading mode to “Shading with Material” Material” Select “View/Render View/Render Style/Perspective Style/Perspective” on the menu Select “View/ Lighting…” and then select “Two Lights”
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To Hide Compass, Deselect “View/ Compass” Compass” on the top menu To Hide Tree, Deselect “View/ Specifications” Specifications” on the top menu
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CATIA V5R16 Overview – Toy Excavator Excavator
Tutorial 1D (11) Export the simulation into AVI format:-
Click “Compile Simulation” Simulation” icon Select “Generative Generative an animation file” file” Select “VFW Codec” Codec” as defa default ult Click “Setup” Setup” but butto ton n and sele select ct “Cinepak “Cinepak Codec by Radius” Radius” as Compre Compress ssor or Click “File name…” to define the destination of the exported file and the file name Select “Simulation.1” Simulation.1 ” (We’v (We’ve e mad made e only one simulation) Change “Time step” step” to be 0.04 (for smoother playback) Click ok to complete
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END of Tutorial 1D
