1.北方工业大学 机械与材料工程学院, 北京 100144
谢雄伟(1992— ),男,江西抚州人,硕士研究生,研究方向为先进制造技术。
徐宏海(1967— ),男,浙江萧山人,博士,教授,硕士生导师,研究方向为机械传动、先进制造技术。
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谢雄伟,徐宏海,关通.基于遗传算法的RV减速器零件公差优化设计[J].机械传动,2020,44(03):77-83.
Xie Xiongwei Xu Honghai Guan Tong.Optimization Design of Part Tolerance of RV Reducer based on Genetic Algorithm[J].Journal of Mechanical Transmission,2020,44(03):77-83.
谢雄伟,徐宏海,关通.基于遗传算法的RV减速器零件公差优化设计[J].机械传动,2020,44(03):77-83. DOI: 10.16578/j.issn.1004.2539.2020.03.013.
Xie Xiongwei Xu Honghai Guan Tong.Optimization Design of Part Tolerance of RV Reducer based on Genetic Algorithm[J].Journal of Mechanical Transmission,2020,44(03):77-83. DOI: 10.16578/j.issn.1004.2539.2020.03.013.
回差是RV减速器重要技术指标之一,影响回差的因素较多,基于零件加工特征尺寸公差与成本之间的数学模型,以零件加工成本最小为目标,许用回差(≤1′)和装配尺寸链为约束条件,运用遗传算法优化设计RV减速器摆线轮、针轮、曲柄轴等零件的关键尺寸公差。应用CATIA软件建立考虑零件尺寸误差极限值的RV减速器三维虚拟样机,导入Adams软件进行回差仿真验证,仿真结果表明,RV减速器的回差为0.002′~1.07′,与许用回差(≤1′)相近,验证了文中提出的零件公差优化设计方法的正确性,对提高RV减速器的传动精度、控制零件加工成本,具有重要的参考价值。
The backlash is one of the important technical indicators of the RV reducer, and there are many design parameters that affect the backlash. Based on the mathematical model between the part processing feature tolerance and cost, the minimum part processing cost is taken as the target, the allowable backlash(≤1′) and the assembly dimension chain are used as the constraints, and the genetic algorithm is used to optimize the key dimensional tolerances of the RV reducer cycloidal gear, pinwheel, crankshaft and other parts. The CATIA software is used to establish the 3D virtual prototype of the RV reducer considering the limit error of the part size, and the virtual prototype is imported into the Adams software for the simulation of the backlash. The simulation results show that the backlash of the RV reducer is 0.002′~1.07′, which is close to the allowable backlash (≤1′). The correctness of the proposed part tolerance optimization design method is verified, which has important reference value for improving the transmission precision of RV reducer and controlling the processing cost of parts.
RV减速器 遗传算法 公差设计 回差仿真
RV reducerGenetic algorithmTolerance designBacklash simulation
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