锥-柱组合壳结构固有特性计算和优化设计  

Calculation of the inherent characteristics and optimal design of the cone-column composite shell structure

作　　者：曹银行 柳贡民[1] 胡志 CAO Yinhang;LIU Gongmin;HU Zhi(College of Power and Energy Engineering,Harbin Engineering University,Harbin 150001,China)

机构地区：[1]哈尔滨工程大学动力与能源工程学院,黑龙江哈尔滨150001

出　　处：《哈尔滨工程大学学报》2023年第3期395-401,共7页Journal of Harbin Engineering University

基　　金：国家自然科学基金项目(51579051).

摘　　要：为解决工程中常见的锥-柱组合壳结构固有特性的快速计算和优化设计问题,本文通过采用改进状态向量的方法简化了基于唐纳尔壳模型的圆柱壳和圆锥壳结构的传递矩阵推导过程,利用连接处的力和位移匹配条件,建立了锥-柱组合壳结构传递关系,进而对锥-柱组合结构的固有振动特性进行了计算,计算结果与有限元法吻合良好。最后采用基于遗传算法的锥-柱组合壳结构优化设计方法,为更加复杂的组合壳结构动力学特性分析和优化设计奠定了理论和方法基础。实践表明:改进状态向量和转换矩阵的引入能够简化圆柱壳和圆锥壳的振动计算传递矩阵推导过程。To quickly calculate and optimally design the inherent characteristics of cone-column composite shell structures,the transfer matrix derivation process of cylindrical and conical shell structures based on the Donnell shell model is simplified by the improved state vector method.The transfer relationship of the cone-column compos-ite shell structure is established under force and displacement matching conditions,and the inherent vibration char-acteristics of it can be calculated.The calculation results are in good agreement with the finite element method.The cone-column composite shell structure is calculated.In addition,the optimization design method of the cone-col-umn composite shell structure based on the genetic algorithm is adopted,which lays a theoretical and methodologi-cal foundation for more complex dynamic analysis and optimization design of composite shell structures.Practice shows that the introduction of improved state vector and transformater matrix can simplify the vibration calculetion transfer matrix derivatior process of cylindrical shell and conical shell.

关 键 词：锥-柱组合壳 唐纳尔壳模型 改进状态向量 力和位移匹配 传递矩阵法 遗传算法 固有特性 快速计算 优化设计 

分 类 号：O342[理学—固体力学] TB123[理学—力学]