Refined second order semi-analytical design sensitivities

被引：4

作者：

de Boer, H ^{[1
]}

van Keulen, F ^{[1
]}

Vervenne, K ^{[1
]}

机构：

[1] Delft Univ Technol, Koiter Inst Delft, NL-2600 GA Delft, Netherlands

来源：

INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING | 2002年 / 55卷 / 09期

关键词：

second order; sensitivity analysis; optimization; semi-analytic; design sensitivities; rigid body modes;

D O I：

10.1002/nme.533

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Accurate and efficient calculation of second order design sensitivities in a finite element context is often difficult. The semi-analytical (SA) method is efficient and easy to implement but has accuracy problems even for first order shape design sensitivities. To overcome accuracy problems a refined semi-analytical (RSA) method has been developed for first order sensitivities. The present paper investigates the application of the RSA method to second order design sensitivities. It is found that second order RSA sensitivities are significantly more accurate than their SA counterparts. Copyright (C) 2002 John Wiley Sons, Ltd.

引用

页码：1033 / 1051

页数：19

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