摘要
基于一种改进的SIMP拓扑优化方法,在指定载荷和边界条件下,针对不同材料、体积分数和插值函数系数对舟桥衔架结构进行优化。优化结果表明,通过改变材料能够在载荷不变的情况下保证衔架结构的性能满足使用要求;另外将材料使用比例从0.5改为0.3后依然能够使衔架结构的性能满足使用要求。通过修改密度插值函数系数,得到了更利于制造的结构。这些结果说明了采用该方法,舟桥结构的轻质化目标是可行的。
Based on the optimization method of the improved SIMP topology,this paper optimizes the pontoon bridge frame structure under specified loads and boundary conditions according to different materials,volume fractions and interpolation function coefficients.The optimization results show that the performance of the bracket structure can be guaranteed by changing the material without changing the load.In addition,the material usage ratio is changed from 0.5 to 0.3,it still meets the requirement of its performance.By modifying the coefficient of density interpolation function,the bracket structure convenient for manufacturing is obtained.The results show that the goal of the lightweight pontoon bridge structure can be attained by using this method.
作者
彭华
曾标
张迎新
汪田
PENG Hua;ZENG Biao;ZHANG Yingxin;WANG Tian(China Harzone Industry Co.,Ltd.,Wuhan 430223,China)
出处
《机械制造与自动化》
2020年第4期95-96,108,共3页
Machine Building & Automation
基金
国家重点研发计划(2016YFC0802702)。
关键词
SIMP
轻质化
舟桥结构
体积分数
SIMP
lightweight
pontoon bridge structure
volume fraction
