摘要
为了更好地实现转向架构架的轻量化设计,根据设计经验,采用渐进结构优化法(ESO)的基本思想,通过对ANSYS单元生死功能的二次开发,应用APDL(ANSYS Parametric Design Language)编制拓扑优化程序,以直观的有限元模型代替复杂的拓扑优化的数学模型,提出了一种构架拓扑优化设计的工程方法。通过方法优化,使某高速动力车转向架构架在疲劳强度符合要求的前提下,结构应力趋于均匀分布,质量减少了143.92kg。结果表明,提出的方法是有效的和可行的,具有一定的工程实用价值,为设计提供依据。
In order to implement better lightweight design of bogie frame, the author presents a engineering method of topology optimization by referencing experience of engineer and basic idea of ESO and the secondary development of ANSYS element birth and death function. The program of topology optimization is compiled with APDL, and the complex mathematical model of topology optimization is replaced with intuitionistic finite element model. As a resuit, its fatigue strength meets the requirement, structural stress tends to distribute uniformly e, and the mass is diminished by 143.92kg in bogie frame of high speed power car. The results show that this method is effective and feasible, and has practical value of engineering.
出处
《计算机仿真》
CSCD
北大核心
2010年第5期267-270,322,共5页
Computer Simulation
基金
长江学者和创新团队发展计划资助(IRT0452)
关键词
转向架构架
拓扑优化
二次开发
参数化设计语言
单元生死
Bogie frame
Topology optimization
Secondary development
ANSYS parametric design language
Element birth and death
