FEA (finite element analysis) is easier to use than ever before as it becomes more closely integrated with the 3D modeling system Designers, not just engineering analysts, can now use FEA We'll discuss this and other issues such as applications, recent advancements, and fu(ure trends with four leading FEA application developers. FEA began back in the 1940s with R. Courant, who used numerical analysis and variational calculus methods to derive approximate solutions to various vibration system problems. A much broader definition that encompassed the stiffness and deflection of complex structures emerged in the 1950s. Today, you generally generate a 3D or 20 finite-element mesh that approximates stresses based on case loads and boundary constraints you assign. For the basics of FEA, see "Finite-Element Analysis and Solid Modeling" (Cadalyst, February 2001; www.cadalyst.com/solutions/model/O201 model/0201 model.htm). FEA is just one of many analysis types you can perform on 20 and 30 surface and solid models. For the full range of options, see "Validate Designs with Today's CAE Options" (Cadalyst, July 2002; www.cadalyst.com/features/O702mcad/mcad.htm).
展开▼
