摘要
采用结构拓扑优化理论,研究某新型齿轮箱基座拓扑构型设计方法。在满足指定振级落差设计要求下,进行底座和腹板材料拓扑布局动力学优化,减轻基座的重量。建立了两种拓扑构型优化模型:1)振级落差约束下,基座重量为目标函数,底座方钢(阻振质量)拓扑构型优化;2)振级落差约束下,基座重量为目标函数,腹板及底座方钢综合拓扑优化设计。通过两种方案的计算对比分析,得到给定约束条件下的减振效果良好的腹板和底座方钢结构拓扑形式,为实际工程设计应用提供概念设计。丰富新型减振基座拓扑构型设计理论和方法。
The structural dynamic optimal design of a novel gearbox mounting is presented to reduce vibration transmissibility.Two kinds of structural optimization formulations minimizing the weight of the mounting with vibration level difference constraints are established: 1) topology optimization of the bottom of the mounting;2) combination of free-size optimization of ribs and topology optimization of the bottom of the mounting.Comparing the two optimization results,we get the new structural plate and the bottom which have better performance in reducing vibration and provide a concept design to practical engineering designs.
出处
《振动与冲击》
EI
CSCD
北大核心
2008年第6期173-177,共5页
Journal of Vibration and Shock
基金
国家自然科学基金资助项目(编号10672100)
关键词
基座
振级落差
拓扑优化
自由尺寸优化
mounting
vibration level difference
topology optimization
free-size optimization
