多工况下塔带机工作平台拓扑优化设计  

Topology optimization for work flat of tower-belt under multi-loading cases

作　　者：杜义贤[1,2] 胡金润[1] 田启华[1,2] 李然 

机构地区：[1]三峡大学机械与材料学院,湖北宜昌443002 [2]三峡大学水电机械设备设计与维护湖北省重点实验室,湖北宜昌443002 [3]长江三峡通航管理局,湖北宜昌443002

出　　处：《机械设计》2012年第11期62-66,共5页Journal of Machine Design

基　　金：国家自然科学基金资助项目(51105229);湖北省自然科学基金资助项目(2010CDB10805);水电机械设备设计与维护湖北省重点实验室开放基金资助项目(2010KJX04)

摘　　要：为了避免单工况优化设计的局限性,对塔带机工作平台进行了多工况拓扑优化设计,得到其优化的结构构型,使工作平台在各种工况下既具有足够的刚度,又适当的减少了材料用量。以工作平台的整体结构柔度最小为优化目标,利用带权重的折衷规划法协调多个目标函数,构建多工况拓扑优化数学模型,利用HyperWorks/Optistruct求解优化模型,得到工作平台的拓扑型式。根据拓扑型式重构几何模型,对其进行静力分析,并与原结构模型静力分析的结果进行比较,对比的结果证明了文中优化设计的有效性。In order to avoid the limitation of optimization for the work flat of tower-belt exists in single loading case, a topology optimization for the work flat under multi-loading case is performed. The optimal configuration of work fiat is obtained. The optimal work flat in various multiple load cases has high stiffness and less dosage of materials. Taking minimum compliance of the whole structures as the objective, the mathematical optimization model of multi-loading case topology optimization is constructed by using the weight com- promise programming method to coordinate the multiple objective functions. The optimal topology model of work flat is obtained using HyperWorks/Optistruct. Geometric model is reconstructed and stat- ic analysis is then taken. Compared with the static analysis results of the original structure, the results of optimized structure prove the validity of topology optimization used in work flat of tower-belt.

关 键 词：拓扑优化 多工况 塔带机 工作平台 

分 类 号：TP391.72[自动化与计算机技术—计算机应用技术] U653.92[自动化与计算机技术—计算机科学与技术]