基于材料-结构协同设计的层合板多级优化方法  

Multilevel Optimization Method of Laminated Composite Plates Based on Collaborative Design of Material & Structure Parameters

作　　者：张二亮[1] 张卫红[1] 邱克鹏[1] 

机构地区：[1]西北工业大学中法并行工程联合实验室,西安710072

出　　处：《机械科学与技术》2006年第1期53-56,共4页Mechanical Science and Technology for Aerospace Engineering

基　　金：国家自然科学基金重大项目(90405016);面上项目(10372083);航空科学基金项目(04B53080)资助

摘　　要：提出一种以材料参数与结构参数为变量的复合材料层合板多级优化设计新方法。以单层纤维含量、层厚和铺层角为设计参数,建立了刚度和强度约束下的结构减重设计模型,基于有限元分析,运用所提出的三级优化策略完成结构轻量化设计。本文给出了不同载荷类型和位移边界条件下层合板优化算例,设计结果验证了方法的有效性。A novel method of multilevel optimization design is proposed for laminated composite plates at the variation of material parameters and structural pavameters. Fiber content, lamina thickness and fiber orientation of each layer are used as design parameters to minimize the weight of laminated composite plates under stiffness and strength constraints. The minimization process is carried out in the proposed triple-level optimization scheme on the basis of finite element analysis. The paper provides numerical tests under different displacement boundary conditions and load varieties. Design results demonstrate the effeetiveness of the proposed method.

关 键 词：复合材料层合板 协同设计 多级优化 有限元分析 

分 类 号：TB33[一般工业技术—材料科学与工程]