摘要
对某电动自行车钢结构主车架进行计算机优化设计,并选用镁合金材料来减轻质量。利用拓扑优化和尺寸优化技术获得新的车架结构和管件尺寸,并进行静力分析和模态分析。与原钢架相比,优化后的镁合金主车架质量减少60%,固有频率提高。结果表明,新结构的强度和刚度达到设计要求。
The main frame of steel structure was redesigned via computer simulation optimization,and magnesium alloy was used to reduce the weight of electric bicycle.The new frame structure and tube thickness were obtained by using topology optimization and size optimization respectively.At the same time,static analysis and mode analysis of the main frame were carried out.Compared with the original steel frame,the magnesium alloy main frame after optimization has reduced the mass by 60%,the natural frequency improves greatly.The results show that the strength and the rigidity of the new structure can meet designed demand.
出处
《机械强度》
CAS
CSCD
北大核心
2012年第2期308-311,共4页
Journal of Mechanical Strength
基金
江西省自然科学基金(2008GZC0040)
江西省教育厅科学技术研究项目(GJJ08204)资助~~
关键词
电动自行车
拓扑优化
尺寸优化
有限元分析
Electric bicycle
Topology optimization
Size optimization
Finite element analysis
作者简介
董洪波，男，1972年3月生，山东省定陶县人，汉族。南昌航空大学航空制造工程学院副教授，主要研究方向为金属塑性加工及计算机辅助技术，发表论文30余篇。通信地址：南昌市丰和南大道696号南昌航空大学航空制造工程学院。
