论文部分内容阅读
建立了旋转对称支承板(RSS)机座的有限元模型,利用Ansys Workbench进行了多目标驱动尺寸优化,分析了RSS机座支承刚度影响最敏感的支承板相关参数和尺寸。通过改变该尺寸的参数,进行了RSS机座结构优化。然后对优化后结构再建立有限元模型,考虑有无预紧力的条件下进行了模态分析和动力响应分析。结果表明,优化后的支承板的各阶模态固有频率都得到提高并避开了工作频率,改善了RSS机座的结构的动力稳定性,为大型动力装备机座设计和轴系稳定性设计提供了参考依据。
The finite element model of the RSS base was established. The multi-objective drive size was optimized by Ansys Workbench. The parameters and dimensions of the most sensitive support plate were analyzed. By changing the size of the parameters, the RSS base structure optimization. Then the finite element model is established for the optimized structure, and modal analysis and dynamic response analysis are carried out under the condition of no preload. The results show that the modal natural frequency of each optimized support plate is improved and the operating frequency is avoided, and the dynamic stability of the structure of RSS base is improved. The design of the power base and the stability of the shaft are designed Provided a reference.