Numerical analysis of stick-slip induced nonlinear vibration and acoustic responses of composite laminated plates with friction boundaries

Qu Yegao; Xie Fangtao; Su Heng; Meng Guang

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Numerical analysis of stick-slip induced nonlinear vibration and acoustic responses of composite laminated plates with friction boundaries

机译：用摩擦界限复合层压板的粘滑诱导非线性振动和声反应的数值分析

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摘要

This paper is concerned with the development of a numerical model for predicting the nonlinear structural and acoustic responses of a composite laminated plate induced by stick-slip motions. The structural model of the plate is formulated using a higher-order shear deformation zigzag theory for accommodating the analysis of both thin and relatively thick composite plates. A phenomenological macro-slip friction model is adopted to describe the stick and slip motions of the friction boundaries. The nonlinear dynamics model of the composite plate is established based on a finite element method, and the exterior acoustic fluid is modeled using a time-domain boundary element method. The nonlinear vibro-acoustic responses of the plate are calculated by considering the compatibility conditions on the common interface of the plate and the fluid. The role of the frictional forces in the vibration and sound radiation of the plate is explained. It is found that the periodical distortions of the sound pressure waves are mainly due to the stick-to-slip transitions of the friction boundary other than the slip-to-stick transitions. The effects of the preload, friction coefficient and stiffness of the boundary on the nonlinear structural and acoustic responses of composite plates are examined.

机译：本文涉及开发用于预测由粘滑运动诱导的复合层压板的非线性结构和声反应的数值模型。使用高阶剪切变形锯齿形理论配制板的结构模型，用于容纳薄且相对厚的复合板的分析。采用一种现象学宏观滑动摩擦模型来描述摩擦界限的杆和滑动动作。基于有限元方法建立复合板的非线性动力学模型，并且使用时域边界元件法建模外部声学流体。通过考虑板和流体的公共界面上的相容条件，计算板的非线性vibro-声反应。解释了摩擦力在板的振动和声辐射中的作用。结果发现，声压波的周期性变形主要是由于除了滑动转换之外的摩擦边界的粘滑过渡。研究了对复合板的非线性结构和声反应的边界的预载荷，摩擦系数和刚度的影响。

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来源
《Composite Structures》 |2021年第2期|113316.1-113316.12|共12页
作者
Qu Yegao; Xie Fangtao; Su Heng; Meng Guang;
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作者单位

Shanghai Jiao Tong Univ State Key Lab Mech Syst & Vibrat Shanghai 200240 Peoples R China;

Shanghai Jiao Tong Univ State Key Lab Mech Syst & Vibrat Shanghai 200240 Peoples R China;

Shanghai Jiao Tong Univ State Key Lab Mech Syst & Vibrat Shanghai 200240 Peoples R China;

Shanghai Jiao Tong Univ State Key Lab Mech Syst & Vibrat Shanghai 200240 Peoples R China;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类
关键词
Composite plate; Friction boundary; Stick-slip transition; Nonlinear vibration; Sound radiation;

机译：复合板;摩擦边界;粘滑过渡;非线性振动;声辐射;

Numerical analysis of stick-slip induced nonlinear vibration and acoustic responses of composite laminated plates with friction boundaries

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