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Computer Aided Mechanical Design

Computer Aided Mechanical Design. History at Rice Tasks Reports Tools. ME CAD Tasks. Geometric Modelling Finite Element Analysis [FEA] Computational Fluid Dynamics [CFD] Drafting, Rapid Prototypes [STL] Parts, Assemblies, Constraints Mechanisms. ME CAD Tasks.

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Computer Aided Mechanical Design

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  1. Computer Aided Mechanical Design • History at Rice • Tasks • Reports • Tools J. E. Akin Rice University, MEMS Dept.

  2. ME CAD Tasks • Geometric Modelling • Finite Element Analysis [FEA] • Computational Fluid Dynamics [CFD] • Drafting, Rapid Prototypes [STL] • Parts, Assemblies, Constraints • Mechanisms J. E. Akin Rice University, MEMS Dept.

  3. ME CAD Tasks • Continuous System Models & Controls • Function Optimization • Shape Optimization • Topological Optimization • Documentation • Manufacturing • … J. E. Akin Rice University, MEMS Dept.

  4. Finite Element Analysis • Thermal • Stress • Natural Frequencies • Dynamic Response • Buckling • Endurance • CFD … J. E. Akin Rice University, MEMS Dept.

  5. Documentation and Reports • Design report • Mass properties • Bill of materials • Assembly, operations • Engineering economics • Patents • Marketing ... J. E. Akin Rice University, MEMS Dept.

  6. Geometric Modeling • Curve models [wiring] • Surface models • Solid models • Sheet metal • Wireframes, shading, drafting • FE modeling J. E. Akin Rice University, MEMS Dept.

  7. FE Modeling • Line meshes • Surface meshes • Solid meshes • Loads • Restraints J. E. Akin Rice University, MEMS Dept.

  8. Commercial Product • Geometric systems • Finite Element Analysis (FEA) systems • Computational Fluid Dynamics (CFD) systems • Mechanism analysis… J. E. Akin Rice University, MEMS Dept.

  9. CAD Tools • Text editor, spread sheet, search engine • ME environments (Matlab…) • Computer languages • Optimization tools [functions, shapes] • Knowledge based systems (KBS) • Electronic reference books • Patents … J. E. Akin Rice University, MEMS Dept.

  10. Computer Languages • Procedural languages • Basic, C, C++, F95, Pascal, perl, … • Visual Basic, Visual C, Visual Fortran, … • Non-procedural languages • Case selectors (TK Solver) • Simulation standards (CSSL) J. E. Akin Rice University, MEMS Dept.

  11. Optimization Tools • User-defined functions (OptdesX) • Procedural language interface • Executable program interface • Limited parametric items in FEA (Ideas, Ansys) • Topological optimization (shapes) J. E. Akin Rice University, MEMS Dept.

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