Improvement of Transient Vibration Characteristics for Structures

Abstract

In the design of mechanical structure, improvement of characteristics of the transient response as well as the steady state response is important. For example, improvement of dynamic behavior of vehicle when running over a small obstacle is often investigated for ride comfort. Not only magnitude of the maximum amplitude of time history response but also the timing of occurrence may cause discomfort. In this paper, we try to control the peak timing arbitrarily, and to change the transient response by applying the sensitivity analysis by mass addition to a simple structure. As a result, it is found that it is possible to shift the occurrence time of the maximum peak based on the sensitivity analysis.