文章基本信息

标题：Result Correlation of Experimental and Numerical Modal Analysis of a Steel Beam
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作者：Peter Pavelka ; Róbert Huňady ; Martin Hagara 等
期刊名称：American Journal of Mechanical Engineering
印刷版ISSN：2328-4102
电子版ISSN：2328-4110
出版年度：2016
卷号：4
期号：7
页码：376-379
DOI：10.12691/ajme-4-7-26
出版社：Science and Education Publishing
摘要：The paper deals with an experimental and a numerical investigation of dynamic properties of the structure. Object of interest is a steel rod with circle section. The modal parameters, such as mode shapes and natural frequencies, are obtained by two different ways: experimentally by using experimental modal analysis and numerically by finite element analysis which were computed in NX Nastran solver. The results from both methods are compared in NX through the correlation function. A relation between measured mode shapes and computed mode shapes is expressed by Modal Assurance Criterion. This process of comparing is appropriate for verification of experimental approaches.
关键词：experimental modal analysis; numerical modal analysis; mode shape; natural frequency; Cross MAC