大型游乐设备主轴静动态特性分析及结构优化  

The Static and Dynamic Characteristics Analysis and Structure Optimization of the Spindle of Large Amusement Equipment

作　　者：贺田龙 许志沛[1] 唐林 敖维川 HE Tianlong;XU Zhipei;TANG Lin;AO Weichuan(College of Mechanical Engineering,Southwest Jiaotong University,Chengdu 610031,China)

机构地区：[1]西南交通大学机械工程学院

出　　处：《机械设计与研究》2019年第3期87-93,共7页Machine Design And Research

基　　金：中央高校基本科研业务费用专项资金资助(2015ZT03)

摘　　要：通过分析计算YGPPZ型游艺机主轴正常旋转时各工况的最大载荷,对主轴危险情况进行有限元仿真,得出主轴具有一定地改进空间;应用拓扑优化法建立主轴最佳载荷传递路径,明确主轴可优化区域及危险截面。以主轴质量最小为目标函数,以其强度、刚度为约束条件。建立径向基神经网络近似模型,采用粒子群算法进行全局优化。根据最优解以主轴摇臂端及配重端较小内径分别作为主轴两端内孔直径,并进行有限元验证。结果表明优化设计方案具备可行性,提高了设计效率;使主轴结构性能更好,质量降低15.17%,该优化设计方案对轴类零件的优化具有一定的借鉴价值。By analyzing and calculating the maximum load of each working condition when the spindle of YGPPZ type amusement machine rotates normally, the dangerous condition of the spindle is simulated by finite element method, and it is concluded that the spindle has certain improvement space. The optimal load transfer path of spindle is established by using topological optimization method, definite the spindle area can be optimized and dangerous section. The minimum mass of spindle serve as the objective function, and its strength and stiffness are the constraint conditions. The approximate model of radial basis neural network is established, and particle swarm optimization was used for global optimization. According to the optimal solution, the smaller inner diameter of the rocker arm end and the counterweight end of the spindle are taken as the diameter of the inner hole at both ends of the spindle respectively, and finite element verification was performed. The results show that the optimal design scheme is feasible, not only improved design efficiency, but also make spindle structure performance better, and its quality reduced by 15.17%. This optimization design scheme has certain reference value for the optimization of shaft parts.

关 键 词：主轴 有限元分析 拓扑优化 近似模型 粒子群算法 

分 类 号：TH12[机械工程—机械设计及理论] TH133