共固化阻尼膜夹嵌复合材料圆柱壳的制备工艺与振动特性分析  

Fabrication technology and vibration characteristics analysis of composite cylindrical shell with co-cured damping film embedded

作　　者：周越松 孙兴帅 孔佳利 郑明辉 郑长升 ZHOU Yuesong;SUN Xingshuai;KONG Jiali;ZHENG Minghui;ZHENG Changsheng(Shandong Huayu University of Technology,Dezhou 253000,China;Qingdao University of Technology,Qingdao 266520,China;Weifang University of Science and Technology,Weifang 262700,China)

机构地区：[1]山东华宇工学院,山东德州253000 [2]青岛理工大学,山东青岛266520 [3]潍坊科技学院,山东潍坊262700

出　　处：《兵器装备工程学报》2024年第12期254-261,共8页Journal of Ordnance Equipment Engineering

基　　金：山东省自然科学基金项目(ZR2023QE115);德州市工业机器人控制重点实验室(德科字〔2017〕45号)。

摘　　要：为研究共固化阻尼膜夹嵌复合材料圆柱壳的振动特性,开发了共固化阻尼膜夹嵌复合材料圆柱壳结构制备新工艺,设计并制备出试件。搭建了动力学模态试验平台,分析圆柱壳试件的基频、阻尼比和模态振型,并验证了有限元模型的准确性。在此基础上,通过数值模拟进一步探讨参数变化对结构动力学性能的影响规律。结果表明:内外复合材料层厚度相同时,结构具有较好的动力学性能;增加阻尼层厚度并取合适的阻尼层比率,可使结构获得较大的阻尼性能和理想的刚度;长度与厚度之比存在结构设计的最优值,结果为共固化阻尼膜夹嵌复合材料圆柱壳结构的优化设计提供了借鉴与指导。In order to study the vibration characteristics of cylindrical shells made of co-cured damping film embedded composites,a new process for the preparation of cylindrical shell structures made of co-cured damping film embedded composites was developed,and test pieces were designed and prepared.A dynamic modal test platform was built to analyze the fundamental frequency,damping ratio and mode shapes of the cylindrical shell specimens,and to verify the accuracy of the finite element model.On this basis,the influence law of parameter variation on the dynamic performance of the structure is further explored by numerical simulation.The results show that:when the thickness of the inner and outer composite layers is the same,the structure has better dynamic performance;increasing the thickness of the damping layer and taking the appropriate ratio of the damping layer can make the structure obtain larger damping performance and ideal stiffness;there exists an optimal value of the ratio of the length to the thickness of the structural design,and the results provide reference and guidance for the optimization of the design of the cylindrical shell structure of the co-curing damping film embedded with the composite material.

关 键 词：共固化阻尼膜夹嵌复合材料 圆柱壳 振动特性 模态试验 数值模拟 

分 类 号：TB332[一般工业技术—材料科学与工程]