USING LINEAR-MODEL REDUCTION TO INVESTIGATE THE DYNAMICS OF STRUCTURES WITH LOCAL NONLINEARITIES

被引：46

作者：

FRISWELL, MI

PENNY, JET

GARVEY, SD

机构：

[1] Department of Mechanical Engineering, University College of Swansea, Swansea, SA2 8PP, Singleton Park

[2] Dynamics Control and Vibration Research Group, Department of Mechanical and Electrical Engineering, Birmingham

来源：

MECHANICAL SYSTEMS AND SIGNAL PROCESSING | 1995年 / 9卷 / 03期

关键词：

D O I：

10.1006/mssp.1995.0026

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

This paper considers the application of model reduction methods, which are popular for linear systems, to systems with local non-linearities, modeled using finite element analysis. In particular these methods are demonstrated by obtaining the receptance of a discrete and a continuous system with cubic stiffening discrete springs, using the harmonic balance method. Time simulation, using the reduced model, is also demonstrated by computing the Poincare map of a pinned-pinned beam with backlash. The methods provide satisfactory results providing sufficient degrees of freedom are retained in the reduced model and these retained degrees of freedom are chosen with some care.

引用

页码：317 / 328

页数：12

共 21 条

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