SENSITIVITY-BASED SCALING FOR APPROXIMATING STRUCTURAL RESPONSE

被引：74

作者：

CHANG, KJ

HAFTKA, RT

GILES, GL

KAO, PJ

机构：

[1] Lockheed Engineering and Science Company, Hampton, VA

[2] Virginia Polytechnic Institute and State University, Blacksburg, VA

[3] NASA Langley Research Center, Hampton, VA

[4] Analytical Services and Materials, Inc., Hampton, VA

来源：

JOURNAL OF AIRCRAFT | 1993年 / 30卷 / 02期

基金：

美国国家航空航天局;

关键词：

D O I：

10.2514/3.48278

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

This article presents a sensitivity-based linearly varying scale factor used to reconcile results from simple and refined models for analysis of the same structure. The improved accuracy of the linear scale factor compared to a constant scale factor, as well as the commonly used tangent approximation, is demonstrated. A wing-box structure is used as an example, with displacements, stresses, and frequencies correlated. The linear scale factor could permit the use of a simplified model in an optimization procedure during preliminary design to approximate the response given by a refined model over a considerable range of design changes.

引用

页码：283 / 288

页数：6

共 17 条

[1]

Haftka R.T., Gurdal Z., Kamat M.P., Elements of Structural Optimization, (1990)

[2]

Brown R.T., Nachlas J.A., Structural Optimization of Laminated Conical Shells, AIAA Journal, 23, 5, pp. 781-787, (1985)

[3]

Barthelemy J.-F., Haftka R.T., Recent Advances in Approximations for Optimum Structural Design, (1991)

[4]

Thomas H.L., Sepulveda A.E., Schmit L.A., Improved Approximations for Control Augmented Structural Synthesis, AIAA Journal, 30, 1, pp. 171-179, (1992)

[5]

Storaasli O.O., Sobieszczanski J., On the Accuracy of the Taylor Approximation for Structure Resizing, AIAA Journal, 12, 2, pp. 231-233, (1974)

[6]

Vanderplaats G.N., Salajeghah E., A New Approximation Method for Stress Constraints in Structural Synthesis, AIAA Journal, 27, 3, pp. 352-358, (1989)

[7]

Joh C.-Y., Grossman B., Haftka R.T., Efficient Optimization Procedures for Transonic Airfoil Design, (1989)

[8]

Rasmussen J., Accumulated Approximations-A New Method for Structural Optimization by Iterative Improvements, Proceedings of the Third Air Force/Nasa Svmposium on Recent Advances in Multidisciplinarv Analvsis and Optimization, pp. 253-258, (1990)

[9]

Skelton R.E., Hughes P.C., Hablani H.B., Order Reduction for Models of Space Structures with Modal Cost Analysis, Journal of Guidance, Control, and Dvnamics, 5, 4, pp. 351-357, (1982)

[10]

Camarda C.J., Haftka R.T., Riley M.F., An Evaluation of Higher-Order Modal Methods for Calculating Transient Structural Response, Computers and Structures, 27, 1, pp. 89-101, (1987)

← 1 2 →