摘要
基于计算机辅助设计(Computer aided design,CAD)和计算机辅助工程(Computer aided engineering,CAE)集成技术,开发三维参数化结构形状优化设计平台POSHAPE,为复杂三维机械零部件的设计提供一种通用的工具。为实现优化设计流程的自动化,将三维参数化CAD系统、有限元分析、优化求解和有限元建模等模块集成为完整的通用三维实体参数化形状优化设计系统,形成开放式的结构分析与优化设计集成系统。以CD6140A车床的导轨部分为例,在三维参数化特征造型CAD系统中,以三维实体结构几何模型为对象,以几何尺寸参数为优化设计变量,采用POSHAPE对结构进行形状优化设计,在降低车床质量的同时提高结构刚度和结构自振频率。优化设计结果为机床设计提供重要理论依据。
Based on CAD/CAE integration, a general parametefized structure shape optimization design platform named POSHAPE is developed. To automate modern product design process, the three-dimensional parameterized CAD system, the finite element analysis, the optimizer and finite element modelling modules are integrated to achieve general three-dimensional parameterized shape optimization design system which forms an open integration system of structure analysis and optimization design. In present work, the bed slide of centre lathe, labelled with CD6140A is studied on this platform while its geometric dimension parameters are taken as variables of design optimization. The three-dimensional solid structure weight is to be minimized with maximized stiffness and maximized minimal self-vibration frequency. The result of optimized design can provide important theoretical basis for the design of machine tools
出处
《机械工程学报》
EI
CAS
CSCD
北大核心
2008年第5期152-159,共8页
Journal of Mechanical Engineering
基金
国家自然科学基金(10502013)。
关键词
机床结构
形状优化
参数化
CAD/CAE集成
Machine tool mechanism Shape optimization Parameterization CAD/CAE integration
