On options for interdisciplinary analysis and design optimization

Autor: Sharon L. Padula, Jaroslaw Sobieszczanski-Sobieski, Robert T. Haftka
Rok vydání: 1992
Předmět:
Zdroj: Structural Optimization. 4:65-74
ISSN: 1615-1488
0934-4373
DOI: 10.1007/bf01759919
Popis: The interdisciplinary optimization of engineering systems is discussed from the standpoint of the computational alternatives available to the designer. The analysis of such systems typically requires the solution of coupled systems of nonlinear algebraic equations. The solution procedure is necessarily iterative in nature. It is shown that the system can be solved by fixed point iteration, by Newton's method, or by a combination of the two. However, the need for sensitivity analysis may affect the choice of analysis solution method. Similarly, the optimization of the system can be formulated in several ways that are discussed in the paper. It is shown that the effect of the topology of the interaction between disciplines is a key factor in the choice of analysis, sensitivity and optimization methods. Several examples are presented to illustrate the discussion.
Databáze: OpenAIRE