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FEM Surface CATIA V5 Training Student Notes: Foils Copyright DASSAULT SYSTEMES FEM Surface Version 5 Release 19 January 2009 EDU_CAT_EN_FMS_FF_V5R19 Copyright DASSAULT SYSTEMES 1 FEM Surface About this course Student Notes: Objectives of the course Upon completion of this course you will be able to: - Use the various Meshers such as Surface Mesher, Advanced Surface Mesher, Beam Mesher, and OCTREE Triangle Mesher - Create a new mesh using existing mesh with the help of mesh transformation tools and mesh operators - Edit the mesh using the mesh edition tools available within the above mentioned meshers - Analyze the mesh quality using mesh quality checks and tools like Free Edges, Duplicate Elements, Duplicate Nodes, Mesh Interference Checks, etc. Targeted audience Copyright DASSAULT SYSTEMES Mechanical Designers Prerequisites 16 Hours Generative Part Structural Analysis Fundamentals, Generative Assembly Structural Analysis Copyright DASSAULT SYSTEMES 2 FEM Surface Student Notes: Table of Contents (1/4) Introduction to FEM Surface What is FEM Surface User Interface Accessing the Workbench for FMS General Process for FEM Surface Analysis Advanced Surface Mesh Advanced Surface Mesher Global Parameters Advanced Surface Local Specifications Advanced Surface Execution Tools Advanced Surface Edition Tools Domain Edition Modify Mesh Copyright DASSAULT SYSTEMES Surface Mesh Surface Mesher Local Specifications Geometrical Specification 1D Mesh Specifications Copyright DASSAULT SYSTEMES 7 8 10 16 17 18 19 21 28 42 48 56 65 71 72 78 80 87 3 FEM Surface Student Notes: Table of Contents (2/4) 2D Mesh Specifications Execution Tools Edition Tools 94 103 105 OCTREE Triangle Mesher 114 What is OCTREE Triangle Mesher Beam Mesher How to Mesh Using Beam Mesher How to Modify Beam Mesh Mesh Operators What is Mesh Offset What is Split Quads How to Use Move Mesh Nodes Mesh Transformations Copyright DASSAULT SYSTEMES What is Mesh Transformations How to Use Mesh Part Transformation: Rotation Mesh Parts Extrusion from 1D to 2D Extract 1D Coating Elements from 2D Mesh Parameters Exposition to Knowledge Copyright DASSAULT SYSTEMES 115 119 120 125 126 127 128 129 130 131 133 134 136 138 4 FEM Surface Student Notes: Table of Contents (3/4) Mesh Parameters Exposition to Knowledge Update Mesh Edit an Existing Advanced Surface Mesh-part How to Update Mesh Copyright DASSAULT SYSTEMES Mesh Analysis Tools What is Cutting Plane What is Elements Orientation What is Shrink Elements What is Mesh Parts Statistics How to Use Free Edges Browser About Intersections and Interferences Check How to Use Intersections / Interferences Check How To Perform Quality Analysis How to Use Standard and Quality Visualization What is Null Size Bar Element Quality Checker What is Duplicate Element Checker What is Duplicate Nodes Checker How to Use Unmeshed Domain Browser Copyright DASSAULT SYSTEMES 139 143 144 145 146 147 148 149 150 151 152 153 155 160 161 162 163 164 5 FEM Surface Student Notes: Table of Contents (4/4) What is Group Definition by Boundary Visualization of Meshes and Groups How to Visualize Meshes and Groups Import/Export Meshes What is Import/Export Mesh Welding Connections 169 170 171 172 173 174 177 178 179 182 183 184 Copyright DASSAULT SYSTEMES What is Analysis Connection Welding Meshing Methods - Toolbars How to Create Spot Weld Connection Mesh Spot Weld Meshing with Hemming Zone How to Analyze Failed Spot Weld Connection Meshes How to Create Seam Weld Connection Mesh How to Create Surface Weld Connection Mesh How to Create Nodes to Nodes Connection Mesh How to Create Node Interface Mesh 165 167 168 Copyright DASSAULT SYSTEMES 6 FEM Surface Introduction To FEM Surface Student Notes: Copyright DASSAULT SYSTEMES In this lesson you will get overview of FEM Surface workbench. Copyright DASSAULT SYSTEMES 7 FEM Surface Student Notes: What is FEM Surface (1/2) FEM Surface or FMS provides you the tools to create surface meshes required for Analysis. Various tools are available in FMS to create, edit, analyze and visualize the surface mesh. It also provides tools to create 1-D mesh. Using FMS, it is possible to create different types of welding connection meshes between mesh parts. Geometry : CATIA-GSD V5 (Generative Shape Design) Geometry: CATIA V4 Skin (*ski) Meshing specification associative with design changes Import V4 file Surface Meshing CATIA FMS V5 Copyright DASSAULT SYSTEMES Component Structural Linear Analysis… CATIA GPS/EST V5 Copyright DASSAULT SYSTEMES Assembly Structural Analysis (Linear) CATIA FEM/ELFINI V4 Solver Other FEA software (Durability, Crash, NVH,…) 8 FEM Surface Student Notes: What is FEM Surface (2/2) All surface meshing tools provided by FEM Surface or FMS can be broadly classified into Mesh Parameter Specification Mesh Creation Mesh Analysis Mesh Edition Following General process can be followed to create desired surface mesh. Analyze Mesh Enter Mesher Apply Mesh Parameters and Specification Required Mesh specification achieved ? Create Mesh Exit Mesher NO Copyright DASSAULT SYSTEMES Edit Mesh specification YES Copyright DASSAULT SYSTEMES 9 FEM Surface Student Notes: User Interface Toolbars Meshing Methods Mesh Analysis toolbar toolbar Mesh Visualization Toolbar Local Specifications toolbar Welding Meshing Methods toolbar Execution toolbar Copyright DASSAULT SYSTEMES Import/Export Edition Tools Mesh Operators toolbar toolbar Copyright DASSAULT SYSTEMES Mesh Transformations toolbar 10 FEM Surface Student Notes: User Interface – Icons (1/4) Meshing Methods Mesh Analysis Beam Mesher Free edges visualization Surface Mesher Intersection/Interferences Duplicate Element Checker Quality Analysis Connection Summary Mesh Visualization Import / Export Surface Mesher Visualization mode Import Mesh Advanced Surface Mesher Visu Type Export Mesh Octree Triangle Mesher Cutting Plane Surface Meshing Methods Elements orientation Copyright DASSAULT SYSTEMES Shrink elements Visualization mode Standard Visualization Measure Measure between Quality Visualization Measure Item Orientation Visualization Copyright DASSAULT SYSTEMES 11 FEM Surface Student Notes: User Interface – Icons (2/4) Mesh Transformation Transformation Mesher Extrude Mesher Coating Elements Mesh Operators Mesh Offset Split Quad Move Mesh Nodes Transformation Mesher Translation Mesher Rotation Mesher Symmetry Mesher Extrude Mesher Extrude Mesher with Translation Extrude Mesher with Rotation Extrude Mesher with Symmetry Extrude along a Spine Coating Mesher Coating 1D Mesh Welding Meshing Methods Copyright DASSAULT SYSTEMES Spot Welding Connection Mesh Seam Welding Connection Mesh Surface Welding Connection Mesh Nodes to Nodes Connection Mesh Node Interface Mesh Copyright DASSAULT SYSTEMES 12 FEM Surface Student Notes: User Interface – Icons (3/4) Advanced Surface Mesh Local Specification Tools Boundary simplifications Execution Geometry Simplification / Remove Simplification Mesh the Part / Remove Mesh Add/Remove Constraints Imposed elements Global Meshing Parameters Domain Specifications Edition Tools Clean holes Edit simplification Imposed elements Domain Edition Remesh Domain Remove Mesh by Domain Lock Domain Copyright DASSAULT SYSTEMES Remesh Domain Edit Mesh Modify Mesh Edit Mesh Spilt Quadrangles Copyright DASSAULT SYSTEMES 13 FEM Surface Student Notes: User Interface – Icons (4/4) Surface Mesh Execution Exit Global Meshing Parameter Context Options Mesh the Part Mesh/Update Remove Mesh Geometrical Specification Boundary Simplification Add/Remove Constraints on Edge Add/Remove Constraints on Vertex Project External Curve Project External Point 1D Mesh Specification Elements Distribution Elements Capture 2D Mesh Specification Frontal Quadrangle Method Frontal Triangle Method Mapped Method Mapped Free Method Minimal Method Mapped Free Method for Triangular Domain Bead Method Half Bead Method Elements Distribution around Hole Copyright DASSAULT SYSTEMES Distribution Propagation Copyright DASSAULT SYSTEMES Edition Tools Local specification Remove Mesh by Domain Geometrical Specification Lock Domain 1D Mesh Specification Edit Mesh 2D Mesh Specification Split Quadrangle 14 FEM Surface User Interface - Tree Student Notes: Analysis tree Associated Part Geometrical topology simplification Simplified geometry topology edition Copyright DASSAULT SYSTEMES Imposed Elements Copyright DASSAULT SYSTEMES 15 FEM Surface Accessing the Workbench for FMS Student Notes: FMS Functionalities can be accessed through ‘Advanced Meshing Tools’ Workbench. Copyright DASSAULT SYSTEMES 1 Click on ‘Start’ 2 Select ‘Analysis & Simulation’ 3 Select ‘Advanced Meshing Tools’. A new CATAnalysis document is created. 4 Select an analyse type as ‘Static Analysis’. Copyright DASSAULT SYSTEMES 16 FEM Surface Student Notes: General Process for FEM Surface Analysis Ensure that the part has a material assigned. Open FEM Surface Workbench 1 Define global mesh parameters and specifications 2 Mesh modification Copyright DASSAULT SYSTEMES 4 3 Mesh specification Mesh creation 5 Analyze mesh quality 6 Pre-processing Analysis Capabilities Copyright DASSAULT SYSTEMES 17 FEM Surface Advanced Surface Mesh Student Notes: You will see how to use Advanced Surface Mesher Copyright DASSAULT SYSTEMES Advanced Surface Mesher Global Parameters Advanced Surface Local Specifications Advanced Surface Execution Tools Advanced Surface Edition Tools Domain Edition Modify Mesh Copyright DASSAULT SYSTEMES 18 FEM Surface Advanced Surface Mesher Student Notes: Copyright DASSAULT SYSTEMES In this lesson, you will learn how to define meshing parameters and specifications, and how to create an advanced surface mesh. Copyright DASSAULT SYSTEMES 19 FEM Surface What is Advanced Surface Mesher Student Notes: Advanced Surface Mesher provides following collection of tools for surface mesh generation: Copyright DASSAULT SYSTEMES Global Parameters Specification Local Specifications (Holes, Constraints, Nodes and Domain Specifications) Mesh Execution / Creation Mesh Edition Tools Copyright DASSAULT SYSTEMES 20
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