On the Method of Displaced Frequencies in Vibration Analysis

Author:

Mahalingam S.1

Affiliation:

1. Department of Mechanical Engineering, University of Ceylon, Peradeniya, Ceylon; formerly Department of Mechanical Engineering, University College London. Associate Member of the Institution.

Abstract

An analysis is made of the experimental method of displaced frequencies for the determination of the generalized masses of a freely vibrating structure. Energy and receptance methods are combined to determine the changes in frequency, mode and equivalent mass caused by the addition of one or more small masses. Special attention is given to the behaviour of a system with close or equal natural frequencies and some of the properties of a system with two equal frequencies are examined in detail.

Publisher

SAGE Publications

Subject

General Engineering

Reference6 articles.

1. Bishop R. E. D., Johnson D. C. The mechanics of vibration 1960, chapter 3, pp. 85–171 (Cambridge University Press).

2. Vibrating Systems with Equal Natural Frequencies

Cited by 4 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. The response of a system with repeated natural frequencies to force and displacement excitation;Journal of Sound and Vibration;1974-09

2. Displacement Excitation of Vibrating Systems;Journal of Mechanical Engineering Science;1968-02

3. On the Determination of the Dynamic Characteristics of a Vibrating System;The Journal of the Royal Aeronautical Society;1967-11

4. Small-Amplitude Vibrations of a Four-Bar Mechanism;Journal of Mechanical Engineering Science;1966-12

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