纤维增强截顶圆锥壳固有特性计算及分析  

Natural characteristics calculation and analysis of fiber reinforced truncated conical shell

作　　者：许卓 许沛尧[1] 郑利胜 李晖 李鹤[3,4] 顾大卫 何明阳[1] 韩清凯 闻邦椿 XU Zhuo;XU Peiyao;ZHENG Lisheng;LI Hui;LI He;GU Dawei;HE Mingyang;HAN Qingkai;WEN Bangchun(School of Mechanical Engineering,Northeast Electric Power University,Jilin 132011,China;Wenzhou Institute of Industry and Science,Wenzhou Zhejiang 325028,China;School of Mechanical Engineering and Automation,Northeastern University,Shenyang 110819,China;Key Laboratory of Vibration and Control of Aero-Propulsion System Ministry of Education,Northeastern University,Shenyang 110819,China;School of Mechanical Engineering,Zhejiang University of Technology,Hangzhou 310014,China)

机构地区：[1]东北电力大学机械工程学院,吉林132011 [2]温州市工业科学研究院,浙江温州325028 [3]东北大学机械工程与自动化学院,沈阳110819 [4]东北大学航空动力装备振动及控制教育部重点实验室,沈阳110819 [5]浙江工业大学机械工程学院,杭州310014

出　　处：《航空动力学报》2024年第11期21-29,共9页Journal of Aerospace Power

基　　金：东北电力大学博士科研启动基金(BSJXM-2020221);东北大学航空动力装备振动及控制教育部重点实验室研究基金(VCAME202204)。

摘　　要：以理论与实践相结合的方式分析了纤维增强截顶圆锥壳的固有特性。针对纤维增强复合圆锥壳的结构特性引入半锥角系数,考虑复合结构各向异性的影响,基于经典层合理论对其进行了理论建模;利用Rayleigh-Ritz法和正交多项式法求解了结构的固有特性。通过搭建相应的实验系统,以TC300/环氧树脂复合圆锥壳为研究对象进行测试,结果表明:该方法所获得固有频率的结果与试验测试结果间的误差在1.4%~2.3%之间,进而验证了所提出模型的正确性。最后,讨论了半锥角大小、不同约束方式和不同纤维铺层角度等参数对结构固有特性的影响规律。The natural characteristics of composite conical shells were calculated and verified by combining theory and experiment.Based on the classical lamination theory and considering the influence of anisotropy of composite structures,the theoretical model was established by introducing half-cone angle coefficients.Then,the natural characteristics of the structures were obtained by utilizing the Rayleigh-Ritz method and orthogonal polynomial method.A natural characteristic experiment system of TC300/epoxy resin composite conical shell was established and the natural characteristics were acquired.The results showed that the error between the calculated and test results was between 1.4%and 2.3%,which further verified the correctness of the proposed model.Finally,the influences of different parameters,such as the half cone angle,the boundary conditions and the fiber ply angles,on the natural characteristics of the structure were discussed.

关 键 词：纤维增强复合结构 截顶圆锥壳 固有特性 Rayleigh-Ritz法 正交多项式 

分 类 号：V214.33[航空宇航科学与技术—航空宇航推进理论与工程]