ASCE will be sunsetting the Civil Engineering Database (CEDB) in the coming months. We encourage you to start using the ASCE Library to perform content searches. In the ASCE Library, you can save your search results as well as receive email content alerts when new content relevant to your area of interest is published. Try it out today at https://ascelibrary.org.

 

Design Improvements Using Finite Elements and Optimizing with Approximate Functions

by Mark C. Imgrund, Swanson Analysis Systems Inc, Houston, PA, USA,



Document Type: Proceeding Paper

Part of: Electronic Computation

Abstract:

A design optimization module has been added to the finite element program ANSYS, designed to aid the engineer in reaching an improved or optimum design. The numerical technique employed is substantially different than classical optimization methods. Objective functions and behavioral constraint functions are approximated by a best fit of trial solutions, and successive steps toward an optimum design are chosen based on unconstrained minimization calculations (SUMT algorithm) with these approximate functions. The mechanics of the method and how it is incorporated into a general purpose finite element code is described. Modelling and design strategies for using this technique are presented and are clarified by specific examples in the field of structural engineering.

Subject Headings: Finite element method | Structural design | Optimization models | Structural engineering | Structural analysis | Numerical methods | Computer software

Services: Buy this book/Buy this article

 

Return to search