摘要
点阵结构是一种先进的轻质功能结构,在航空航天领域应用越来越广泛,设计出满足特定功能需求的点阵结构来拓展零件功能,是当前需要解决的关键问题之一。基于拓扑优化原理进行点阵结构的设计,对多种点阵结构的性能进行了仿真分析和物理实验分析,并对实验结果进行了对比。对主要受拉压应力的连杆填充相应的点阵结构进行轻量化优化设计,结果表明,采用点阵结构填充后的试验件质量减小了1/3,比刚度是原来的1.9倍。
With the increasing application of lattice structures,how to design a lattice structure that meets specific functional requirements to expand the function of parts is one of the key issues.In this paper,the design of lattice structure is realized based on the principle of topology optimization,and the performance analysis and physical experiment analysis are carried out on the lattice structures.The lightweight design of the connecting rod with tension and pressure loads in the middle are achieved based on the lattice cell.The lightweight design reduces the volume of the connecting rod by 1/3,and increases the specific stiffness by 1.9 times.
作者
朱健峰
戴宁
刘乐乐
Zhu Jianfeng;Dai Ning;Liu Lele(College of Mechanical and Electrical Engineering, Nanjing University ofAeronautics and Astronautics, Jiangsu Nanjing, 210016, China)
出处
《机械设计与制造工程》
2020年第7期1-6,共6页
Machine Design and Manufacturing Engineering
基金
国家自然科学基金资助项目(51775273)
国防装备预研基金资助项目(61409230305,6141B07090119)
国防基础科研项目(JCKY2018605C010)
江苏省重点研发计划项目(BE2018010-2)
南京航空航天大学研究生创新基地开放基金资助项目(kfjj20170520)。
关键词
点阵结构
性能分析
弹性模量
轻量化设计
lattice structure
performance analysis
elastic modulus
lightweight design
