摘要
行星轮边减速器结构紧凑、承载力大且传动比大,被广泛应用于重型载重车辆。基于两级行星轮边减速系统的结构特点,运用模糊优化相关理论对系统进行优化设计。系统的优化设计为多目标设计,第一级的目标函数为体积最小,第二级的目标函数为可靠度最大。同时根据遗传算法特点,改进权重系数的搜索方法,增大优化搜索空间,与其他优化方法结果相比有一定的提高。在可靠性结果的基础上,将模糊理论应用到田口方法中,对轮边减速系统进行稳健设计,将稳健设计的结果与可靠性优化设计的结果进行对比。根据优化设计的结果,对两级轮边减速系统及其主要部件齿轮、轴承进行仿真模拟分析,结果可知,优化设计后机构轴承寿命、齿轮的强度均达到设计要求,表明优化设计的可行性。
The planetary wheel hub reducer has the advantages of compact structure,high bearing capacity and large transmission ratio,which is widely used in heavy duty truck. According to the structural characteristics of double-stage planetary wheel hub reducer system,the double-stage wheel hub reducer is designed based on the fuzzy reliability optimization design with the multi-objects. The first-level objective function is the minimal volume,the second-level objective function is the greatest reliability. Based on the characteristic of genetic algorithms,improving the weight coefficients of the search methods and increasing the optimization searching space,compared with other optimization methods,the result is improved. Based on the results,the fuzzy theory is applied to the Taguchi method. The robust design of double-stage wheel hub reducer is carried out. The results of robust design are compared with the above results. According to the optimal design results,the simulation analysis of main components,gear,bearings of the double-stage wheel hub reducer system is carried out. The simulation result met the design requirements,which verified the feasibility of the optimized design.
出处
《机械传动》
CSCD
北大核心
2017年第7期180-187,共8页
Journal of Mechanical Transmission
关键词
两级轮边减速系统
多目标
模型
可靠性
模糊理论
Double-stage wheel hub reducer system
Multi-objective
Model
Reliability
Fuzzy theory
