运用灵敏度分析的角接触球轴承多目标优化设计

为了提高角接触球轴承的性能,以双列角接触球轴承为研究对象,提出一种基于Isight多学科优化技术的双列角接触球轴承优化设计方法.然后,以双列角接触球轴承的额定动载荷和额定静载荷为性能指标,采用最优拉丁超立方设计方法,对双列对角接触轴承结构设计参数进行灵敏度分析.搭建Isight和MATLAB联合仿真平台,采用NSGA-Ⅱ 优化算法对3210角接触球轴承结构设计参数进行优化设计.结果表明,优化后的3210角接触球轴承的额定动载荷和额定静载荷相对于轴承手册标准值分别提高了63.93%和75.98%.同时,与基于免疫算法的3210角接触球轴承优化设计进行比较.研究结果表明:采用多学科优化设计方法优化后的3210角接触球轴承的额定动载荷和额定静载荷相对于免疫算法的优化结果,分别提高了4.997%和1.370%.

Multi-Objective Optimization Design of Angular Contact Ball Bearings Based on Sensitivity Analysis

In order to improve the performance of angular contact ball bearing, taking double-row angular contact ball bearing as the research object, its design method based on Isight multidisciplinary optimization technology was proposed. With the dynamic load and static load as the performance indicators, the structural design parameters of the double-row angular contact bearing were analyzed using the optimal Latin hypercube design method. A co-simulation optimal platform was developed by the Isight and MATLAB, and the NSGA-Ⅱ algorithm was used to optimize the design parameters of the 3210 angular contact ball bearing. The results show that the dynamic load and static load of the optimized 3210 angular contact ball bearing are increased by 63.93% and 75.98% respectively compared with the standard values of the bearing manual. Moreover, the design was compared with that given by the immune algorithm-based method. The results show that the dynamic load and static load of 3210 angular contact ball bearing optimized by the multi-disciplinary optimization design method are improved by 4.997% and 1.370% respectively compared with the immune algorithm optimi-zation results.