基于广义多项式混沌法的圆柱结构振动不确定性分析

IF 0.7 Q4 ENGINEERING, MECHANICAL

Journal of Vibroengineering Pub Date : 2023-06-23 DOI:10.21595/jve.2022.22254

Chen Luyun, H. Yi

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引用次数: 0

摘要

为了获得振动结构系统振动声问题的准确预测模型，对考虑施工因素的圆柱壳结构进行了不确定振动分析。采用广义多项式混沌(GPC)方法对圆柱壳结构的自由振动进行了解析求解，其中考虑了结构不确定性因素，包括材料不确定性参数和结构几何不确定性参数。结合配置法和广义多项式混沌法，通过数值分析验证了不确定性构造因子对圆柱壳结构自由振动特性的影响。研究结果为减振降噪结构的设计和施工提供了技术支持。

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Uncertainty analysis for cylindrical structure vibration according to generalized polynomial chaos method

Aiming to gain an accurate prediction model of the vibro-acoustic problem for the vibrating structure systems, the uncertainty vibration analysis for the cylindrical shell structure considering construction factors is investigated. The generalized polynomial chaos (GPC) method is used to gain the analytical solution of the free vibration for the cylindrical shell structure, in which the construction uncertainty factors, comprising the material uncertainty parameter and construction geometric uncertainty parameter, are considered. By combining the collocation method and generalized polynomial chaos method, the influence of the uncertainty construction factor on the free vibration properties for the cylindrical shell structure is verified by a numerical analysis. The results provide technical support for the design and construction of the vibrating structure for vibration and noise reducing.

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来源期刊

Journal of Vibroengineering 工程技术-工程：机械

CiteScore

1.70

自引率

0.00%

发文量

审稿时长

4.5 months

期刊介绍： Journal of VIBROENGINEERING (JVE) ISSN 1392-8716 is a prestigious peer reviewed International Journal specializing in theoretical and practical aspects of Vibration Engineering. It is indexed in ESCI and other major databases. Published every 1.5 months (8 times yearly), the journal attracts attention from the International Engineering Community.