Measurement of Dynamic Characteristics of Structures by the Speckle Interferometry on Single Speckle

M. D. Limov, M. N. Osipov, R. N. Sergeev
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Abstract

- In this article the results associated with the use of speckle interferometry on a single speckle to determine the dynamic characteristics of mechanical constructions are presented. The optical scheme of the speckle interferometer on a single speckle is proposed, which makes it possible to simultaneously record the form and amplitude of the resonant vibrations of mechanical constructions. Theoretical and experimental results demonstrating the behavior of the output signals from the speckle interferometer on a single speckle in the study of the resonant vibrations are presented. The resonance method for measuring the logarithmic decrement of vibrations and other dynamic characteristics of a mechanical constructions using speckle interferometry on a single speckle is proposed.
单散斑干涉法测量结构动态特性
在这篇文章中,与使用散斑干涉测量法在单个散斑上确定机械结构的动态特性有关的结果被提出。提出了单点散斑干涉仪的光学方案,使其能够同时记录机械结构的共振振动形式和振幅。给出了理论和实验结果,证明了散斑干涉仪在谐振振动研究中对单个散斑输出信号的行为。提出了利用散斑干涉法在单个散斑上测量机械结构振动的对数衰减量和其他动态特性的共振方法。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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