Finite Element Analysis Method Guide throu...

本书针对ANSYS公司的有限元分析平台Workbench ,详细介绍了软件的功能及应用。本书内容丰富且涉及领域较广，使读者在掌握软件操作的同时，也能掌握解决相关工程领域实际问题的思路与方法，并能自如地解决本领域所出现的问题。
全书分为6篇，共26章，第1篇从有限元分析着手，讲解工程问题的数学物理方程及Workbench平台的基础应用知识；第2篇以基础范例为指导，讲解在Workbench平台中进行结构静力学分析、模态分析、谐响应分析、响应谱分析、随机振动分析及瞬态动力学分析；第3篇作为进阶部分，讲解接触分析、显式动力学分析、复合材料分析、疲劳分析及压电分析；第4篇以项目范例为指导，讲解稳态热力学分析、瞬态热力学分析、计算流体动力学分析、电场分析及磁场分析。本书配套资源中的第5篇作为高级应用篇，讲解结构优化分析、线性屈曲分析、APDL编程及声学分析等；第6篇主要讲解多物理场耦合分析，包括电磁耦合、流固耦合、振动噪声等。
Table of ContentsCredits and Copyright ................................................................................................................................................................ 4Preface ....................................................................................................................................................................................... 4INTRODUCTORY ................................................................................................................................................................................ 9General Information .................................................................................................................................................................. 9The Design Modeler............................................................................................................................................................. 10Basic Mouse Functionality ................................................................................................................................................... 11Selection Filters.................................................................................................................................................................... 11Selection Panes.................................................................................................................................................................... 12Graphic Controls.................................................................................................................................................................. 12Additional Mouse Controls.................................................................................................................................................. 12Understanding Cell States.................................................................................................................................................... 13i. Typical Cell States .................................................................................................................................................... 13ii. Solution-Specific States............................................................................................................................................ 13iii. Failure States ........................................................................................................................................................... 143D Geometry............................................................................................................................................................................ 15Bodies and Parts .................................................................................................................................................................. 15Boolean Operations............................................................................................................................................................. 15Feature Type ........................................................................................................................................................................ 16Feature Creation.................................................................................................................................................................. 17CHAPTER_I: CHILD SWING .............................................................................................................................................................. 191.1 Problem Description .......................................................................................................................................................... 191.2 Workbench GUI.................................................................................................................................................................. 201.3 Preparing Engineering Data ............................................................................................................................................... 211.4 Create Geometric Model ................................................................................................................................................... 221.4.1 2D and 3D Simulations................................................................................................................................................ 221.4.2 More on Geometric Modeling .................................................................................................................................... 221.5 Divide Geometric Model Into Finite Elements .................................................................................................................. 241.6 Set Up Loads and Supports................................................................................................................................................ 251.7 Solve the Finite Element Model......................................................................................................................................... 271.8 Viewing the Results............................................................................................................................................................ 271.9 Second Part of Our Task..................................................................................................................................................... 28CHAPTER_II: BEAM SYSTEM............................................................................................................................................................ 322.1 Problem Description .......................................................................................................................................................... 322.2 Start-Up.............................................................................................................................................................................. 332.3 Create Body........................................................................................................................................................................ 342.4 Create Cross-Section.......................................................................................................................................................... 382.5 Start-up “Mechanical” ....................................................................................................................................................... 39Page | 6Table of Contents Finite Element Analysis Method2.6 Generate Mesh .................................................................................................................................................................. 392.7 Specify Boundary Conditions............................................................................................................................................. 402.8 Specify Loads...................................................................................................................................................................... 402.9 Set up Solution Branch and Solve the Model .................................................................................................................... 412.10 View the Results .............................................................................................................................................................. 41CHAPTER_III: PLATE ....................................................................................................................................................................... 433.1 Problem Description .......................................................................................................................................................... 433.2 Start-Up.............................................................................................................................................................................. 443.3 Creating the 2D Geometry Model ..................................................................................................................................... 443.4 Set Up Mesh Controls........................................................................................................................................................ 473.5 Set Up Supports, Loads...................................................................................................................................................... 483.6 Set Up Solution Outcome Branch ...................................................................................................................................... 483.7 View the Results ................................................................................................................................................................ 493.7.1 Perform Simulations................................................................................................................................................... 503.8 Modify the Model .............................................................................................................................................................. 513.8.1 Set Up New Supports, Loads....................................................................................................................................... 523.8.2 Set Up New Mesh Controls......................................................................................................................................... 523.8.3 View the Results ......................................................................................................................................................... 523.9 Structural Error .................................................................................................................................................................. 533.10 Finite Element Convergence............................................................................................................................................ 543.11 Stress Concentration........................................................................................................................................................ 553.11.1 View the Path Results............................................................................................................................................... 56CHAPTER_IV: SHAFT....................................................................................................................................................................... 574.1 Problem Description .......................................................................................................................................................... 57Examples before beginning our task ................................................................................................................................... 57Shaft Description ................................................................................................................................................................. 584.2 Start-Up.............................................................................................................................................................................. 594.3 Create Body........................................................................................................................................................................ 594.3.1 Getting back to the Modeling..................................................................................................................................... 614.4 Set Up Mesh Controls........................................................................................................................................................ 624.5 Set Up Supports, Loads...................................................................................................................................................... 634.6 Set Up Solution Outcome Branch ...................................................................................................................................... 634.7 View the Results ................................................................................................................................................................ 644.7.1 Activating 3D View...................................................................................................................................................... 654.9 Stress Concentration Factor .............................................................................................................................................. 674.9.1 Hand Calculations VS Computational Calculations of Stress Concentration.............................................................. 68Hand Calculations............................................................................................................................................................ 68Computational Calculations............................................................................................................................................. 68Page | 7Table of Contents Finite Element Analysis MethodSolving the Equation ........................................................................................................................................................ 684.10 Redefining Mesh .............................................................................................................................................................. 69CHAPTER_V: LEVEL OF GEOMETRY .................................................................................................................................................. 705.1 Problem Description .......................................................................................................................................................... 70Car Chassis Description........................................................................................................................................................ 71i. Beam Elements......................................................................................................................................................................... 735.2.i Start Up ............................................................................................................................................................................ 735.3.i Create Body...................................................................................................................................................................... 735.4.i Set Up Mesh Controls...................................................................................................................................................... 765.5.i Set Up Supports, Loads.................................................................................................................................................... 775.6.i Set Up Solution Outcome Branch .................................................................................................................................... 785.7.i View the Results............................................................................................................................................................... 78ii. Solid Elements......................................................................................................................................................................... 795.2.ii Start Up ........................................................................................................................................................................... 795.3.ii Create Body..................................................................................................................................................................... 795.4.ii Set Up Mesh Controls ..................................................................................................................................................... 815.5.ii Set Up Supports, Loads................................................................................................................................................... 825.6.ii Set Up Solution Outcome Branch ................................................................................................................................... 825.7.ii View the Results.............................................................................................................................................................. 83iii. Surface Elements.................................................................................................................................................................... 845.2.iii Start Up .......................................................................................................................................................................... 845.3.iii Create Body.................................................................................................................................................................... 845.4.iii Set Up Mesh Controls .................................................................................................................................................... 865.5.iii Set Up Supports, Loads.................................................................................................................................................. 875.6.iii View the Results............................................................................................................................................................. 87iv. Type of Elements Comparison ............................................................................................................................................... 88CHAPTER_VI: TUNING FORK ........................................................................................................................................................... 896.1 Problem Description .......................................................................................................................................................... 896.2 Start Up.............................................................................................................................................................................. 906.3 Create Body........................................................................................................................................................................ 906.4 Set Up Mesh Controls........................................................................................................................................................ 936.5 Set Up Supports, Loads...................................................................................................................................................... 936.6 View the Results ................................................................................................................................................................ 956.7 Modify Model .................................................................................................................................................................... 96i. Changing Material............................................................................................................................................................. 96ii. Changing the Dimensions ................................................................................................................................................ 97