温度对粘弹性阻尼器板动力性能的影响

Q4 Engineering

Vibrations in Physical Systems Pub Date : 2020-01-01 DOI:10.21008/J.0860-6897.2020.3.10

A. Lenartowicz, Maciej Przychodzki

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引用次数: 3

摘要

本文研究了装有粘弹性阻尼器的薄Kirchhoff-Love板的自由阻尼振动问题。假设阻尼器按照广义流变模型来描述。利用频率-温度对应原理考虑了温度对阻尼器参数的影响。在数值试验中对各向同性板和矩形板进行了分析。利用延拓法求解非线性特征问题，确定了这些板的固有频率和无量纲阻尼比。采用有限元法确定了所考虑的特征问题中出现的刚度矩阵和质量矩阵。本文最后给出了示例性数值计算结果并进行了讨论。

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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Influence of Temperature on Dynamic Properties of Plates with Viscoelastic Dampers

The free damped vibrations of thin (Kirchhoff-Love) plates equipped with viscoelastic dampers are considered in the paper. It is assumed that the dampers are described according to the generalized rheological model. Influence of temperature on the parameters of dampers is taken into account using the frequency-temperature correspondence principle. Isotropic and rectangular plates are analysed in numerical tests included in this study. The natural frequencies and non-dimensional damping ratios are determined for these plates by solving the non-linear eigenproblem using the continuation method. The Finite Element Method is used to determine the stiffness matrix and the mass matrix occurring in the considered eigenproblem. The results of exemplary numerical calculations are presented and discussed at the end of this paper.

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来源期刊

Vibrations in Physical Systems Engineering-Mechanics of Materials

CiteScore

0.70

自引率

0.00%

发文量