CATIA V5R16 Digital Mockup b DMU Fitting simulator igh Exercise 1 9 Refine Environment Settings optional:- To improve the resolution, select “Tools/options.../General/Display/Performa
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CATIA V5 Digital Mockup (DMU)
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DMIU Fitting SimulatorÐ
DMU Fitting
Simulate part motions for assembly and maintainability issues
IEEIMEk Edit View Insert Tools Analyze Window Help
Avshape ` DHU Simulation xi
Analysis & Simulation »
- igital Mockup 4 & DMU Navigator
_ Equipment & Systems > DB OMU Space Analysis
Digital Process For Manufacturing » 8D DMU Kinematics |
distance, detect Clash while moving
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C Manipulation: Manipulate model or le, +» $ =
Compass while creating a track Bra Ge Bea OEE:
Player: Play the track '>}——|I: xịt H 4 mỳ Hi 3Ÿ
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DMU Fitting simulator fight
change the position of the Compass:-
By Dickson Sham (ME dept, HKPU)
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Detect Clashes automatically during the part movement:-
Three modes are available:
>
DMU Fitting simulator fight
Keyes
(1) On (default mode), which deactivates clash detection
(2) Off, which highlights in the geometry area products in
collision while playing a simulation
(3) | Stop, which stops the simulation when the first clash is
detected
Measure distances AFTER a simulation:-
- Click “Distance” icon
- Select two components
Clash Moder
' @® @®
- Click “Apply” to get the minimum distance
Measure distances DURING a simulation:-
_Šƒ % GI 92),
- After “Distance.1” is created, double-click “Sequence.1” on
the tree
- Select the Tab Page “ Edit Analysis”
- Put “Distance.1” on the list called “Analyses in Sequence”
- Set it Active
Version 1b- Mar07
A- 4
On/ Off/ Stop
dit Distance and Band änalysis ?| xị
c— Definitinn Name: Na Type: [Minimum = | Selection: 1 [2 products ` [Inside one selection v |Selection: 2 Yo selection
Minimum distance: fimm |
Accuracy: Emm” mị 8 |Haxmum distance:Pmm CS Results
Edit Action | Edit Analysis |
Analyses in session Analyses in Sequence
Analyses | Status | Step |
=> Distance 1 active all
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(2) Change workbench to DMU Fitting:-
° lf the current workbench is not “DMU Fitting”,
select “Start/Digital Mockup/ DMU fitting” on
the top menu to change (otherwise, it needn't
change)
(3) Make the 1° Film:-
° Click “Track” icon
° Select Upper_Assm(Upper_Assm.1) on tree
° (The Compass will be snapped onto the
assembly and it will turn GREEN)
_ AEC Plant >
Machining )
“_Đigital Mackup » & DMU Navigator
_ Equipment & Systems > @B omu Space analysis
Digital Process for Manufacturing r BP DMU Kinematics Machining Simulation r Se Ergonomics Design & Analysis > ie
©) /Upper_Assm (Upper_Assm.1)° » SEP DMU 2D Viewer arm_support_a (arm_support_a.1)
back_arm_a (back_arm_a.1) Body_a (Body_a.1) bucket_a (bucket_a.1) cabinet_a (cabinet_a.1) Engine_a (Engine_a.1)
|
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CATIA V5R16 Digital Mockup
Click ok complete
(4) Repeat Step 3 to make the remaining
Films for the below components:-
Bucket
Front_Arm Back Arm
Arm_Support
Cabinet Engine Exhaust
†Snenemss (frant_arm _a 1}
Track.1 LIpner _âssm 1 (Track 1 Upper_Assm.1)
4
"Applications P| Base_a (Base_a.1)}
#~“Tracks die Track 1 Upper_Assm.1 (Track.1 Upper_Assm.1)
ie Track.2 bucket_a.1 (Track.2 bucket_a.1) Track.3 Front_arm_a.1 (Track.3 front_arm_a.1)
tà Track.4 back_arm_a.1 (Track.4 back_arm_a.1)
tù Track.5 arm_support_a.1 (Track.5 arm_support _a 1}
tà Track.6 cabinet_a.1 (Track.6 cabinet a 1}
tù Track 7 Engine_a.1 (Track.7 Engine_a 1}
tà Track,8 Exhaust_a 1 (Track.8 Exhaust _a 1}
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DMU Fitting Simulator doe
Reco der
Name: [Irack.1 Upper_Assm.1 ©
B object: JUpper_Assm.1 Edit |
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DMU Fitting simulatorÐ
Exercise 1 DMU Simuw’ atin
(5) Create a Play Sequence of the films:- ` oe @ ot SS Se |
e Click “Edit Sequence” icon Eee | Edit Analysis | ae
see Repeat the steps U ntil all Tracks are inserted 4 | >| |Action duration (s)|171.01 Reset duration Action delay (s)p BỊ
Action add mode
@ Create last step and add © Add in last step © Iterative create last step and add '@ Highlight the simulated action(s)
= Oo x | S Cancel |
(6) Play the Sequence of films:- DMU Simulation
e Select Seq uence 1 rữ# IräCK 5 rom Nn ep \IT@ckK.3 ront_arm_4 1)
đà Track.4 back_arrtfŠ.1 (Track.4 back_arm _a 1}
° (The Player IS activated on top of the screen) đổ Track.5 arm_support_a.1 (Track.5 arm_support_a.1)
‘c mg đồ Track.6 cabinet_a.1 (Track.6 cabinet_a.1)
° Cl ick Parameters Icon đà Track.? Engine_a.1 (Track.? Engine_a.1)
° Enter 5s as Sampling Step (Run the simulation L gia Track.8 Exhaust_a.1 (Track.8 Exhaust_a.1)
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Click “Simulation Player’ icon again to exit
(7) Reset the positions:-
- Click “Reset Position” icon ‘RA BAUER
(all components will be back to their original
positions)
(8) Hide all Track Lines on screen:-
° Right-Click “Tracks” on the tree ——
ie Reframe On ket_a.1)
mk 2 EE Front_arm_a.1)
ie Properties Alt+Enter ack ‘arm a 1)
3 [E] Open Sub-Tree ——'
% Cut Ctrl+w 5 arm_support_a.1)
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b DMU Fitting simulator igh
Exercise 1
(9) Refine Environment Settings (optional):-
To improve the resolution, select
“Tools/options /General/Display/Performan ces/3D Accuracy/Fixed” on the top menu and
change it to 0.01(smallest value)
Change the shading mode to “Shading with Material”
Select “View/Render Style/Perspective” on the menu
Select “View/ Lighting ” and then select “Two Lights”
To Hide Compass, Deselect “View/ Compass”
on the top menu
To Hide Tree, Deselect “View/ Specifications”
on the top menu
A-9
Version 1b- Mar07
3 Options Tree Manipulation | Navigation | Performances | Visualization | General Occlusion culling
wy Display L_] Occlusion culling enabled
Navigation Mode › Shading with Edges F
` Lighting Shading with Edges without Smooth Edg 2) x! Depth Effect Shading with Edges and Hidden Edges
Ground Shading with Material Đà Re:
CÀ Mamnifier ff wireframe (NHR) Hide/Show r Customize view Full Screen Ra
Customize View 7] Perspective Parallel
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(10) Export Simulation into AVI format Bor oe Ge ae poet REE erie urs P
° Click “Tools/Simulation/Generate Video” on ———— =
the top menu a
Click “Setup” button and select “Cinepak — com
Codec by Radius” as Compressor CS - | xị ‘ae a
of the exported file and the file name From: Bequence.t
(Remark: During the conversion, we can manipulate
the geometry by mouse)
END of Exercise 1 A- 10
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- Đigital Mackup 4 & DMU Navigator
_ Equipment & Systems > PP DMU Space Analysis
Digital Process for Manufacturing } f@mipamn
Machining simulation > ” DMU Fitting
Ergonomics Design & Analysis ` TẠI L2 teniez
DMU Generic Animation: Record or
Export Simulation into other format
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CATIA V5R16 Digital Mockup
DMU Kinematics simulator gay
JOINT TypE =—- PEGREES OF = COMMAND DIRECT MANIPULATION
Revolute ee 1 Rotation Angle YES / Left-mouse button
Open an Assembly Document Prismatic {Gf 1 Translation Length YES / Left-mouse button
1Ì Length + Angle Length: Left-mouse Angle:
Delete all Constraints & Create Joints manually | nên "ni
-Or- 4L Cylindrical me) i eee ANDIOR „`
Convert Constraints into Mechanism gang Left-mouse
Analyze the results and modify the design if Slide Curve YB 2 Rotations | No
necessary Point Curve tt : nh Length NO
gint Surface site ranslatians
a : tea — No
Angle1 ar ảngle2 Gear joint oe 1 Rotation YES / Left-mouse button
(exclusive) Rack Joint “fy 1 Translation Be or Length1 0r Angle2 (exclusive) YES / Left-mouse button
Cable Joint ps 1 Translation Length2 YES / Left-mouse button
Screw Joint 3 ¿ Rotation Di Angle or Length YES / Left-mouse button
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Scissor dack
- Simulate the mechanism with
command
- Study the mechanism behavior
(Displacement and Speed)
Scissorjack_a.CATProduct
Version 1b- Mar07
nai DMU Kinematics simulator gay
Ay, Lowerarm (Lowerarm 1}
My] midjoint (midjoint 1)
midnut (midnut 1}
: screw (screw 1)
®- Top (Top 1) Lowerarm (Lowerarm.2) Upperarm (Upperarm.2)
eh Constraints Applications
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DMU Kinematics simulator gaye
DMU kinematics’ on the top menu to change Machining ›
: ' 5 ˆ Đigital Mockup £© DMU Navigator
Digital Process for Manufacturing } Z@ mem Machining Simulation l6 nay ease
Hight-Click on “Constraints” on the product Fone ones
° (We are going to create kinematic joints
manually Once a joint is created between two parts, the corresponding constraints will be made automatically between them To prevent redundancy, we need to delete all the
constraints, which were made on the
“Assembly Design” workbench, before creating
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(4) Fix “Base” in place:-
(5) Create a Revolute joint between Right
Click “New Mechanism’ icon on the pop-u ——— Ƒ
Click ok to accept the default name bees nam.)
Select “Base” (by clicking “Base” on tree or “tố ee
(A Fix Constraint is created automatically, and at eet pase.)
the same time, a fixed part is defined in ams
Lower Arm and Base:-
Select “Revolute Joint’ icon
Click Axis of LowerArm and then Axis of Base (Put the mouse cursor onto the cylindrical surface to
gel Its aXIS) Mechanism: |Mechanism 1 | New Mechanism Í Joint name: Revolute.1
Click Face of LowerArm and then Face of Base Current selection:
Line 1: [Lowerarm.1/Solid.1 Line 2: [Base.1/Solid 1 Plane 1: [Lowerarm.1/5olid.1 Plane 2: [Base.1/Solid 1 @ Null Offset © offset = inset Ee Plane 3: [Ƒ_——————DPlane 4: Ƒ O Centered
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DMU Kinematics simulator gaye
Exercise 2
(6) Create a Revolute joint between Left Lower
Arm and Base:-
° Select “Revolute Joint” icon
° Click Axis of LowerArm and then Axis of Base
° Click Face of LowerArm and then Face of Base
° Click ok to complete
(7) Create a Revolute joint between Right
Lower Arm and Right Upper Arm:-
° Select “Revolute Joint” icon
Click Axis of LowerArm and then Axis of UpperArm
° Click Face of LowerArm and then Face of
ọint Creation: Revolute ?| xị Mechanism: |Mechanism 1
| New Mechanism |
\ Joint name: Revolute.2
Current selection:
Line 1: |Lowerarm.2/Solid.1 Line 2: |Base.1/5olid,1
@ null offset O offset = [inset jä Plane 1: |Lowerarrn.2/5olid.1 Plane 2: |Base.1/5olid.1
© Centered
Joint name: Revolute.3
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DMU Kinematics simulator gay
Exercise 2
(8) Create a Revolute joint between Left Lower
Arm and Left Upper Arm:-
Select “Revolute Joint” icon
Click Axis of LowerArm and then Axis of UpperArm
Click Face of LowerArm and then Face of — == ——;
UpperArm "¬ ——
e Click ok to complete TU aes (eee @ nulloffset © offset = [TS EG
(9) Create a Revolute joint between Right
Upper Arm and Top:-
° Select “Revolute Joint” icon
° Click Axis of UpperArm and then Axis of Top
° Click Face of UpperArm and then Face of Top
Joint name: Revolute.5
Current selection:
Line 1: [Upperarm 1/Solid 1 Line 2: |Top 1/Solid 1
Plane 1: [Upperarm.1/Solid.1 Plane 2: [Top.1/Solid 1 @ nulloffset Coffset= fist FA
Plane 3: [- Plane 4: [- O Centered
C] Angle driven A- 17 = Oo x Í S Cancel |
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CATIA V5R16 Digital Mockup W
DMU Kinematics simulator gay
Exercise 2
(10) Create a Revolute joint between Left
Upper Arm and Top:-
° Select “Revolute Joint” icon
° Click Axis of UpperArm and then Axis of Top
° Click Face of UpperArm and then Face of Top
° Click ok to complete Mechanism — a
Joint name: Revolute.6
Line 1: |Upperarm.2/Solid.1 Line 2: |Top 1/Solid.1
Plane 1: |Upperarm.2/Solid.1 Plane 2: |Top 1/Solid 1 @ nulloffset Ooffset= fist EỊ
Plane 3: |- Plane 4: |- O Centered
C Angle driven
mà Oo ằœ | S Cancel |
(11) Create a Revolute joint between Left
Upper Arm and Mid-Nut:-
° Select “Revolute Joint” icon
° Click Axis of UpperArm and then Axis of MidNut
° Click Face of UpperArm and then Face of MidNut
Joint name: Revolute.?
1ọnt Creation: Revolute = - '
Current selection:
Line 1: |Upperarm.2/Solid.1 Line 2: |midnut,1/5olid, 1 Plane 1: [Upperarm.2/Solid.1 Plane 2: [midnut.1/Solid.1 @ null offset © offset = Pinset 1m Plane 3: [- Plane 4: [- © Centered
C angle driven
A-18 mà c9 s | Deore
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CATIA V5R16 Digital Mockup nai
DMU Kinematics simulator gay
Exercise 2
(12) Create a Revolute joint between Right
Upper Arm and Mid-Joint:-
Select “Revolute Joint” icon
° Click Axis of UpperArm and then Axis of Midjoint
° Click Face of UpperArm and then Face of MidJoint
° Click ok to complete
(13) Create a Revolute joint between Mid-Joint
and Screw:-
Drag the Screw out of the hole by Compass
° Show xy-plane, yz-plane & zx plane of Mid-Joint
° Select “Revolute Joint” icon
° Click Axis of Mid-Joint and then Axis of Screw
° Click zx Plane of Mid-Joint and then Face of Screw
Enter 10mm as Offset
° Click ok to complete
° Hide xy-plane, yz-plane & zx plane A- 19
3oint Creation: Revolute | 2) x
Mechanism: (Mechanism 1 | New Mechanism |
Joint name: Revolute.3
Current selection:
Line 1: |Upperarm.1/Solid.1 Line 2: |midjoint.1/Solid 1
Plane 1: |Upperarm.1/Solid.1 Plane 2: |midjoint.1/Solid.1 ®@ nulloffset © offset= finset fal
Plane 3: |-
(Angle driven
Oo x | S Cancel |
By Dickson Sham (ME dept, HKPU)
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