CANDIDATE REDUCED ORDER MODELS FOR STRUCTURAL PARAMETER-ESTIMATION

被引：14

作者：

FRISWELL, MI

机构：

[1] Department of Mechanical and Production Engineering, Aston University

来源：

JOURNAL OF VIBRATION AND ACOUSTICS-TRANSACTIONS OF THE ASME | 1990年 / 112卷 / 01期

关键词：

D O I：

10.1115/1.2930105

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

This paper considers the reduction of high order models generated by a finite element analysis. The aim is to provide a low order model which retains the effect of parameter changes and so may be used to update the unknown physical structural parameters of the modelled system in the time or frequency domains. After reviewing the methods of structural parameter identification, the available order reduction algorithms and their properties are introduced. Modal truncation is determined to be the most suitable method and the standard algorithm is extended to accommodate unknown parameters. Finally the effect of the reduction process on the modelled receptances is demonstrated. © 1990 ASME.

引用

页码：93 / 97

页数：5

共 18 条

[1]

Caesar B., Update and Identification of Dynamic Mathematical Models, 4Th International Modal Analysis Conference, pp. 394-401, (1986)

[2]

Chen J.C., Garba J.A., Analytical Model Improvement Using Modal Test Results, AIAA Journal, 18, 6, pp. 684-690, (1980)

[3]

Collins J.D., Hart G.C., Hasselman T.K., Kennedy B., Statistical Identification of Structures, AIAA Journal, 12, 2, pp. 185-190, (1974)

[4]

Friswell M.I., The Adjustment of Structural Parameters Using a Minimum Variance Estimation, Journal of Mechanical Systems and Signal Processing, (1988)

[5]

Fritzen C.-P., Identification of Mass, Damping, and Stiffness Matrices and Mechanical Systems, ASME Journal of Vibration, Acoustics, Stress and Reliability in Design, 108, pp. 9-16, (1986)

[6]

Glover K., All Optimal Hankel-norm Approximations of Linear Multivariable Systems and their L°°-error Bounds, International Journal of Control, 39, 6, pp. 1115-1193, (1984)

[7]

Guyan R.J., Reduction of Stiffness and Mass Matrices, AIAA Journal, 3, 2, (1965)

[8]

Irons B., Structural Eigenvalue Problems: Elimination of Unwanted Variables, AIAA Journal, 3, 5, pp. 961-962, (1965)

[9]

Janter T., Heylen W., Sas P., QA-Updating, Proceedings of the 13Th International Seminar on Modal Analysis, (1988)

[10]

Laub A.J., Computations of Balancing Transformations, Paper FA8-E, Proceedings of the 1980 Joint Automatic Control Conference, (1980)

← 1 2 →