Copyright DASSAULT SYSTEMES Assembly Design V5R8 Update CATIA Training Foils Version 5 Release 8 January 2002 EDU-CAT-E-ASM-UF-V5R8
Copyright DASSAULT SYSTEMES Objectives of the course : In this course you will learn new and enhanced capabilities of V5R8 CATIA Assembly Design workbench Targeted audience CATIA V5R7 Users Prerequisites CATIA V5R7 Assembly Design 0.5 day Assembly Design V5R8 Update
Copyright DASSAULT SYSTEMES Table of Contents 1.Constraints04 Constraint Name05 Over-constrained Assemblies06 2. Deactivating a Component08 3. Propagating Position to Reference13 4. Symmetrical Sub-Assembly16 5.Measuring, Sectioning, Clash22 Measuring Minimum Distance23 Sectioning24 Clash33
Copyright DASSAULT SYSTEMES Constraints You will learn enhancements and new capabilities related to assemblies constraints Constraint Name Over-constrained Assemblies
Copyright DASSAULT SYSTEMES Constraint Name The name of a constraint displays when passing the mouse over that constraint. V5R8
Copyright DASSAULT SYSTEMES Over-constrained Assemblies (1/2) You can show all constraints involved in an over-constrained loop. V5R8 This following scenario shows you what happens when the application detects an over-constrained assembly : Over-constrained assembly 1 Two offset constraints Edit an offset constraint and key in a different value Key in 60 mm
Copyright DASSAULT SYSTEMES Over-constrained Assemblies (2/2) 2 Update the Assembly V5R8 The update operation detects difficulties to obtain a valid constrained system: a dialog box appears providing the diagnosis of the problem. The constraints involved in the inconsistent or over- constrained system are displayed. The application indicates : The constraint causing trouble (Offset.14) The constraint Offset.16, which is valid but involved in the inconsistent or over-constrained system
Copyright DASSAULT SYSTEMES Deactivating a Component You will learn new capability related to manage assemblies Deactivating a Component BOM V5R8
Copyright DASSAULT SYSTEMES Why Activate and Deactivate a Component ? Visualization (Shape Representation) BOM (Bill of Material) Accessibility (possibility of applying constraints) NO SHOW Hiding componentsNOYES YES, you can apply constraints between the hidden object and the other components in the show space. UNLOAD Unloading a Component NO Deactivating a Node NOYES YES, you can apply a constraint even if the shape is deactivated. Deactivating a Terminal Node NOYES Deactivating a Component NO V5R8
Copyright DASSAULT SYSTEMES Deactivating a Component (1/2) Select the instance and Right click to display the Contextuel menu 1 2 Select the Clamp2 object -> Activate/Deactivate Component Its shape is deactivated and there are no traces of its specifications in the Bill Of Material The symbol in the specification Tree shows you that it is still possible for you to reactivate it by the reverse operation
Copyright DASSAULT SYSTEMES Deactivating a Component (2/2) As oppose to Deactivate a Node, Deactivating a Component inside a assembly means deleting its representation in all the CATIA documents containing this assembly.
Copyright DASSAULT SYSTEMES BOM
Copyright DASSAULT SYSTEMES Propagating Position to Reference You will learn new capability related to manage flexible assemblies Deactivating a Component BOM V5R8
Copyright DASSAULT SYSTEMES Propagating Position (1/2) 1 Modify position of the Flexible Base Instance. : flexible instance : rigid instance This Product contains 2 sub-assemblies : Base.CATProduct Base_unit.CATProduct Flexible sub-assembly We can apply overloaded position of one flexible instance to reference ( initial rigid position)
Copyright DASSAULT SYSTEMES Propagating Position (2/2) 2 Apply overloaded position to reference Select the flexible Base instance MB3+ ….object+Propagate position to reference Result : all rigid instances should have the same position than the flexible one. Internal position of flexible instances are not impacted by the command and have not necessarily the same position. V5R8
Copyright DASSAULT SYSTEMES Symmetrical Sub-Assembly You will learn new capability related to create a symmetrical assembly Creating Symmetrical Sub-Assemblies Creating New Instances Keep Links V5R8
Copyright DASSAULT SYSTEMES What Symmetrical Sub-Assembly ? Create a symmetrical sub-assembly from an original one, based on a symmetry plane. Generation: The result of the generation of a symmetrical sub-assembly is another sub- assembly with a similar product structure. The User chooses between both options, The parts building the symmetrical sub-assembly are : Either a symmetrical part from the source part. This involves creating a new part, outside any assembly context, with a new « PartNumber ». A typical example is the left door in a car, relatively to the right door. Either a new instance of the source part, in a position symmetric to the original part. A typical example is a cars front left wheel, relatively to the front right wheel.
Copyright DASSAULT SYSTEMES Creating a Symmetry on Component (1/2) Select the icon You can find it on the Product Structure Tools Toolbar 1 2 The Assembly Mirror Wizard dialog box appears: The reference plane is now displayed in green. Select the mirror plane 3 Select the sub-assembly to be mirrored
Copyright DASSAULT SYSTEMES Creating a Symmetry on Component (2/2) By default, CATIA create a new component by each Part 4 Results: 4 components created New Part Number
Copyright DASSAULT SYSTEMES Creating New Instances On this following example, you need to create new instance about the Wheel and Disk Parts. Select one component and activate Symmetry wih new instance option New instance When the user chooses to create a new instance of a source part, at a mirrored position, a new instance is created in the symmetrical sub-assembly, then its position is chosen with respect to the symmetry plane, at creation time. Only reference plane of the part can be used in determining the transformation
Copyright DASSAULT SYSTEMES Keep Links Once the symmetrical sub-assembly has been generated, changes in the source sub-assembly shall allow updating it « FORM » associativity: A change in geometrical shape of the source part leads to update the symmetrical part. « POSITION » associativity: A change of relative position of a component of the source sub-assembly leads to updatethe position of the symmetrical component in the symmetrical sub-assembly. « STRUCTURE » associativity: A change in structure of the source sub-assembly (adding/removing components) leads to update the structure of the symmetrical sub-assembly.
Copyright DASSAULT SYSTEMES Measuring, Sectioning, Clash You will learn new capabilities available related to measure assemblies Measuring Minimum Distance Sectioning Keep Links V5R8
Copyright DASSAULT SYSTEMES Measuring Minimum Distance 2 Select the computation type Inside one selection : Each selected components are tested against all others in the same selection Between two selections : Each component in the first selection are tested against all components in the second selection Selection against all : Each product in the defined selection against all other products in the document Select the products according to computation type 3 Measure minimum Click on Distance icon The Edit Distance Window appears 1 4 Click apply to compute the distance The Preview window displays selected products and the minimum distance It is not possible to keep results on the Specification Tree
Copyright DASSAULT SYSTEMES Sectioning : General Process From product Position and resize the Section on the component to section Open and Manipulate the Section result 3 2 create the section 1
Copyright DASSAULT SYSTEMES Sectioning : How to use Section Tools? Open and Maximize Section Viewer Transform Section into 3D Cut Place your Section plane on a Geometric Target Invert Normal direction Edit Plane Window (Precise positioning) Cancel Move Manipulating 2D in Section Viewer Manipulating section planes Kind of Section When section is created, the Sectioning Definition dialog box appears Contextual Menu available in the Section Resultts Window Activate / Deactivate GIrd Modify Gird Properties
Copyright DASSAULT SYSTEMES Sectioning : Creating a Section Plane Click on The plane created will section all components 1 Manipulate your Section Plane 2 Create dynamically a section using a cutting plane
Copyright DASSAULT SYSTEMES Sectioning : Creating 3D Section Cut Edit the desired section plane, slice or box by double clicking Click on Volume Cut icon Cutting away the material above the plane, beyond the slice or outside the box to expose the cavity within the product 1 2
Copyright DASSAULT SYSTEMES Sectioning : Manipulating a Section Plane Reset Position icon : Restore the plane to its original position Edit the desired section plane by double clicking it 1 Re-dimension the section plane clicking and dragging plane edges 3a 3b Move the section plane along its normal vector clicking over the plane and drag Move the cursor over the section plane, section plane edge or local axis system Translate the plane by pressing MB1, then MB2 and dragging Rotate the section plane clicking over the desired plane axis system and dragging 3c 3d 2 The appearance will change and arrows appear to help you moving your section plane Re-dimension, move and rotate section planes
Copyright DASSAULT SYSTEMES Sectioning : Positioning Plane Reset Position icon : Restore the plane to its original position Edit the desired section plane by double clicking on it Click on Geometrical Target icon Point to the target of interest : Simply Click an Edge or an Axis to position the section plane normal to the desired edge Simply Click a Surface to position the section plane on the tangent to a surface Simply Click on a Cylindrical Surface to position the Section Plane normal to the Axis The Rectangle is a representation of the section plane, to assist you in positioning it
Copyright DASSAULT SYSTEMES Sectioning : Positioning Plane Using the Edit Position Command Edit the desired section plane by double clicking it Click on to Edit Position Change the current position : Click X, Y or Z to position the normal vector (z-axis) of the plane perpendicular to the selected absolute axis system Change the center of the plane coordinates : Values in Origin X, Y and Z boxes (absolute system coordinates) Move the section plane : Enter translation step, then click +Tx, -Tx, +Ty … to move the plane along the selected axis by the defined step (local plane axis system) Rotate the section plane : Same as for the translation use, to rotate the plane around the selected axis by the defined step 1 2 Fill Edit Position Dialog Box 3 Click close to exit and save last plane position 4 Undo / Redo section plane move Change the plane / slice / box dimensions Enter the width of the main section plane Enter thickness of the box or the slice (Distance between the 2 parrallel cuting planes) Position the section plane more precisely
Copyright DASSAULT SYSTEMES Sectioning : Section Viewer (1/2) Display the result of the section, in a particular interface Special tools are available in this interface, in order to: Display Grid Modify Grid options Rotate section Lock 2D Viewer contextual menu
Copyright DASSAULT SYSTEMES Sectioning : Section Viewer (2/2) Lock 2D Visualization Rotate 90° Edit Grid Properties Swap to symmetrical position Show / No Show Grid Horizontal and Vertical Grid step Reset Grid steps to defaults Use Absolute Axis or section plane center as origin Choose style of Grid Fill / No Fill Section Contextual Menu in the Viewer
Copyright DASSAULT SYSTEMES Clash (1/2) Part to Part Clash This is the simplest tool for Clash Detection Select 2 parts then Click Apply The result is given by the traffic lights Check Clash Window This is the powerful tool for Clash Detection in Space Analysis This in fact the one you must know V5R8 It is not possible to save and keep results on the Specification Tree
Copyright DASSAULT SYSTEMES Clash (2/2) Choose Computation type : - Clash: products occupy same space zone - Contact: products in contact -Clearance: products separated by less than the defined clearance distance Choose Selection type : Between all components : each product against all other products Inside one selection : within any one selection, tests each product of the selection against all other products in the same selection Between two selections : each product in the first selection against all products in the second selection Selection against all : each product in the defined selection against all other products in the document Select the products according to computation type Before Compute the Clash Operations,you will have to fill the Check Clash window V5R8 Click apply to calculate the Clash The Results are displayed at the bottom of the Check Clash Box A Preview window displays the selected Clash 4
Copyright DASSAULT SYSTEMES To Sum Up... In this Course you have seen enhancements and new capabilities about Constraints Deactivate a Component Flexible Assemblies with the Propagate Position to Reference option Symmetrical Assemblies