TRANSFER CHARACTERISTICS IN THE COLLISION OF TWO ELASTIC BARS : CONSIDERATION FROM TIME DOMAIN AND FREQUENCY DOMAIN

Abstract

This paper clarifies the mechanism of the impact phenomena of elastic bars by both wave propagation theory and the concept of mechanical impedance in the frequency domain, and investigates the optimum combination of elastic bars to obtain the maximum restitution. The method of the Laplace transformation is used for these analyses. The relation between the contact time of the col llsion and the mechanical impedance is clarified to obtain the maximum restitution coefficient.