轻量化起升机构的两支点减速器支撑多目标优化设计  

Multi-objective optimization design for two-point support of reducer on lightweight hoisting mechanism

作　　者：朱慧云[1,2] 王淑妍[1,2] 吕渌渊[1,2] 陈星 丁进 ZHU Huiyun;WANG Shuyan;LYU Luyuan;CHEN Xing;DING Jin(Mechanical Engineering Collage,Jiangsu University of Science and Technology, Zhenjiang 212003,China;Jiangsu Provincial Key Laboratory of Advanced Manufacturing for Marine Mechanical Equipment, Jiangsu University of Science and Technology,Zhenjiang 212003,China)

机构地区：[1]江苏科技大学机械工程学院,江苏镇江212003 [2]江苏科技大学江苏省船海机械装备先进制造重点实验室,江苏镇江212003

出　　处：《计算机集成制造系统》2018年第9期2314-2321,共8页Computer Integrated Manufacturing Systems

基　　金：国家科技支撑计划资助项目(2015BAF06B02)~~

摘　　要：轻量化起升机构采用两支点支撑方式,仅依靠箱体两侧的支撑件支撑在小车架上,影响了减速器的整体力学性能,故对减速器进行力学特性分析及其优化设计。运用基础力学对轻量化起升机构中减速器进行分析计算,确定了影响减速器力学性能的主要因素。采用Ansys Workbench建立了轻量化起升机构的参数化有限元模型,以减速器两侧支撑件位置的相关参数为设计变量,结合响应面优化设计和多目标优化设计方法,求出减速器支撑位置的优化方案。此外,在优化方案的基础上对轻量化起升机构作进一步优化,最终得到两支点支撑减速器的最优支撑位置。优化结果表明,与原结构相比,减速器的最大变形量降低了16.3%,最大应力值降低了23.8%,显著提高了整体的静动态性能。Lightweight hoisting mechanism adopted two-point support that supported strutting members on both sides of frame,which influenced on the whole mechanical properties of reducer.For this reason,the mechanical analysis,optimization and improvement for reducer were conducted.By means of basic static analysis,the reducer response of lightweight hoisting mechanism was analyzed,and the key factors for influencing on mechanical properties of reducer were confirmed.The parametric finite element model of lightweight hoisting mechanism was built with ANYSYS Workbench.The relevant position parameters of strutting members both on two sides of reducer were chosen as design variables,the optimal scheme about supporting position of reduce was obtained by combining response surface methodology with multi-objective optimization design method.In addition,the further design optimization of lightweight hoisting mechanism was conducted in view of the above optimal scheme,and the optimum support position of reducer was finally obtained.The optimization results showed that the maximum deformation value of reducer decreases 16.3%and the maximum stress value decreases 23.8%by comparing with original mechanism,thus the whole static and dynamic performances were improved significantly.

关 键 词：两支点支撑 减速器 响应面优化 轻量化 力学特性 

分 类 号：TU61[建筑科学—建筑技术科学]