复合材料夹芯开口圆柱壳的振动特性  

Vibration Characteristics of Composite Sandwich Open Cylindrical Shell

作　　者：刘耀国 范亚萍[1] LIU Yaoguo;FAN Yaping(School of Intelligent Manufacturing,Weifang University of Science and Technology,Shouguang 262700,China)

机构地区：[1]潍坊科技学院智能制造学院,山东寿光262700

出　　处：《塑料科技》2025年第3期156-160,共5页Plastics Science and Technology

基　　金：山东省2024年本科教学改革研究项目(Z2024394)。

摘　　要：为探讨复合材料阻尼开口圆柱壳(CDOCS)的振动特性变化规律,在虚功原理基础上,结合折线位移模型、黏弹性力学和复合材料力学,推导CDOCS的振动微分方程。基于纳维叶法求解该CDOCS振动微分方程理论解。基于ANSYS仿真模型得到该CDOCS的仿真解。理论解和仿真解较好的一致性验证了理论推导的有效性和正确性。基于该验证模型探索夹芯复合材料开口壳的振动特性变化规律,重点分析长度、厚度、半径等结构参数对CDOCS振动的影响。In order to explore the vibration characteristics of composite damping open cylindrical shell(CDOCS),the vibration differential equations of CDOCS are deduced on the basis of the principle of virtual work,combined with the folded displacement model,viscoelastic mechanics,and composite mechanics.Based on the Navier's method,the theoretical solution of vibration differential equations of CDOCS is obtained.The simulation solution of CDOCS is obtained based on ANSYS simulation model.The theoretical solution and simulation solution are in good agreement,which verifies the validity and correctness of the theoretical derivation.Based on the validation model,the changing law of vibration characteristics of sandwich composite open-ended shell is explored,and the influence of structural parameters such as length,thickness and radius on the vibration characteristics of CDOCS is analyzed.

关 键 词：复合材料夹芯 开口圆柱壳 一阶折线位移理论 振动频率 损耗因子 

分 类 号：TH212[机械工程—机械制造及自动化] TH213.3