复合材料阻尼板自由振动分析  

Free Vibration Analysis of Composite Damping Plate

作　　者：苏建民[1,2] 柳香雅 王晓林[1] 闫洋洋 李强 SU Jianmin;LIU Xiangya;WANG Xiaolin;YAN Yangyang;LI Qiang(School of Intelligent Manufacturing,Weifang University of Science and Technology,Weifang 262700,China;Weifang Key Lab of Advanced Light Materials Manufacturing and Forming,Weifang 262700,China)

机构地区：[1]潍坊科技学院智能制造学院,山东潍坊262700 [2]潍坊市轻质材料先进制备及成型重点实验室,山东潍坊262700

出　　处：《塑料科技》2025年第2期116-121,共6页Plastics Science and Technology

基　　金：国家自然科学基金资助项目(52005372);潍坊科技学院设施园艺专项(2021XKJS24);潍坊市科技计划(2019GX79)。

摘　　要：以一阶剪切变形理论为基础,利用Hamilton原理得到阻尼板的振动平衡方程。采用Navier闭环型解对四边简支约束的阻尼板结构进行求解,与仿真结果进行对比验证,证明所推导振动平衡方程的正确性,使用验证过的方程对结构动态特性进行分析。结果表明:当将特定的阻尼材料合理嵌入复合材料板的厚度达到一定值时,整体复合材料阻尼板结构的前四阶振动频率最小且损耗因子最大;保持复合材料层厚度不变,改变嵌入的阻尼材料的厚度和边长,振动频率逐渐减小,结构的损耗因子逐渐增大。Based on the first-order shear deformation theory,the vibration balance equation of damping plate was obtained by the Hamilton principle.The Navier closed-loop solution was used to solve the damping plate structure with four sides simply supported constraints,and the correctness of the deduced vibration balance equation was verified by comparison with the simulation results.The verified equation was used to analyze the dynamic characteristics of the structure.The results show that the vibration frequency of the first four orders of the composite damping plate structure was the smallest and the loss factor is the largest when the thickness of the composite sandwich plate with a specific damping material was inserted to a certain value.When the thickness of the composite layer was kept constant and the thickness and side length of the embedded damping material were changed,the vibration frequency decreased and the loss factor of the structure increased.

关 键 词：剪切变形 平衡方程 简支 阻尼板 动态特性 

分 类 号：TB332[一般工业技术—材料科学与工程]