1. Analysis & Simulation MEEN 4263/64

2. Why Conduct Analyses? • It’s required • Will the concept work? Feasibility? • Component Sizing • Material Selection • Optimization • Failure Analyses • Reverse Engineering

3. Tools for Analysis/Simulation • Brain – think through the problem • Calculator & paper, draw it out! • Excel • Matlab, MathCad • CAD packages – configuration, some simulation (Solid Works with COSMOS) • FEA – NEiNastran, Pro-Mechanica, COMSOL MULTIPHYSICS, simple packages from book • Fluent, ProEngineer • Company-specific packages

4. Analysis vs. Simulation • Similar concepts, • Analysis is broader & more basic. • Simulation typically involves a system or complete structure, with FEA or CFD. • I can simulate the vibration of a flat plate with considerable confidence that it will be correct. See - www.engineer.tamuk.edu/departments/ieen/faculty/DrLPeel/Courses/CEEN5321/CEEN5321_Notes1.pdf

5. Helpful Notes, & Potential Pitfalls • When using software: • Conduct a tutorial first. • Conduct a simple simulation or analysis where you know the answer. • Watch units, keep units, and loads/parameters consistent. • Guess properties or loads if you are not sure, but document. • Look for ways to verify your results, try some simple comparisons. • Don’t treat software as a “Black Box”. Understand your analyses. • Ask someone else to check your work. • Don’t be scared to try something new or different.

6. Sample Analyses…. • Some of our later speakers will discuss in great detail. • Simple Excel Calculation…. • NEiNastran notes