メカニカルインピーダンス法による構造物の振動解析

概要

論文の詳細を見る
The mechanical impedance is a powerful tool for analyzing mechanical vibration problems. Its actual application, however, has not been undertaken until very recently, but it is expected to be essential knowledge to those who are interested in mechanical vibration phenomena, in the future. In this paper, basic concepts on the mechanical impedance are introduced in the first and then, experimental test results of the mechanical impedance are described on both the out-plane forced vibration of a clamped quadrangular steel plate with a hole as a fundamental experiment for obtaining practical knowledge of mechanical impedance analyses and the forced vibration of a tank model of a large oil tanker as an applied experiment for investigating whether the mechanical impedance is available for detecting defects in a structure or not. It is concluded from the experiments that the mechanical impedance is very useful for detecting defects in the structure as well as for analyzing mechanical vibration problems.