FASTER, EASIER FINITE ELEMENT MODEL REDUCTION

Autor: K. S. Smith, T. A. Deiters
Rok vydání: 2000
Předmět:
Zdroj: Experimental Techniques. 24:35-40
ISSN: 1747-1567
0732-8818
DOI: 10.1111/j.1747-1567.2000.tb02355.x
Popis: One of the most effective test/analysis comparisons uses an orthogonality product, but this valuable tool is often avoided by test engineers because of the difficulties associated with developing the proper matrices. This paper presents a new technique for reducing a full finite element model to a set of measured degrees of freedom, as well as expanding test measurements to a larger model size. The new approach has the highly desired result of reducing time spent correlating test/analysis dynamic results. By simplifying the reduction and expansion process, this approach also should encourage the use of orthogonality and back-expansion methods by a larger portion of the testing community. Compared with existing methods, the new method has two valuable advantages: it uses capabilities already available in most finite element analysis codes, eliminating the need to develop and maintain special solution sequences; and it makes it easy to create and use the results.
Databáze: OpenAIRE
Externí odkaz: