Author(s)

H. Inoue, K. Kishimoto, T. Shibuya & T. Koizumi

Abstract

Inverse analysis of impact force H. Inoue, K. Kishimoto, T. Shibuya, T. Koizumi Department of Mechanical Engineering for Production, Tokyo Institute of Technology, 2-12-1 0-okayama, Meguro-ku, Tokyo 152, Japan ABSTRACT An inverse problem is studied for estimating the magnitude and direction of impact force acting on a body of arbitrary shape from strain responses mea- sured at several points of the body. The noncausal Wiener filtering and the singular value decomposition are employed to improve the ill-conditioned nature of the inverse problem. The impact force acting on a simply sup- ported beam subjected to transverse impact is estimated to verify the ef- fectiveness of the inverse analysis. INTRODUCTION The impact of two bodies is a dynamic contact problem in which impact force is induced between the bodies. The accurate evaluation of the impact force is a fundamental issue for investigating impact phenomena. However, the experimental evaluation of the impac

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