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首页> 外文期刊>Journal of Sound and Vibration >Dynamic modeling of active constrained layer damping of composite beam under thermal environment
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Dynamic modeling of active constrained layer damping of composite beam under thermal environment

机译:热环境下复合梁主动约束层阻尼的动力学建模

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摘要

The present work deals with the active vibration control of composite beam under thermal environment using finite element method. The effect of fiber orientation and temperature on natural frequency and damping of the system are investigated for different boundary conditions. The temperature-dependent properties of viscoelastic core are considered. Results are presented for frequencies and loss factor with different core material and core thickness. Characteristics of loss factor and frequency near the buckling temperature are discussed, and the effect of core thickness on buckling temperature is also investigated. (c) 2007 Elsevier Ltd. All rights reserved.
机译:本文采用有限元方法研究了热环境下复合梁的主动振动控制问题。在不同的边界条件下,研究了纤维取向和温度对系统固有频率和阻尼的影响。考虑了粘弹性芯的随温度变化的特性。给出了具有不同芯材料和芯厚度的频率和损耗因子的结果。讨论了屈曲温度附近损耗因子和频率的特性,并研究了磁芯厚度对屈曲温度的影响。 (c)2007 Elsevier Ltd.保留所有权利。

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