基于ANSYS/PDS模块的高速电主轴刚度可靠性分析

摘要

为研究高速电主轴刚度可靠性问题,应用ANSYS软件将蒙特卡洛法与随机有限元法相结合对高速电主轴关键零部件进行了刚度可靠性分析.通过选择高速电主轴的多种设计参数作为随机输入变量,提出了一种高速电主轴刚度可靠性分析的步骤和方法,并得出了高速电主轴刚度的可靠度数值和各随机参数的灵敏度图、灵敏度数值;在此基础上,探究了各随机参数对高速电主轴刚度可靠性的影响.研究结果表明,该研究为进一步提高高速电主轴刚度可靠性提供了参考.%In order to study the problems of high-speed motorized spindle reliability about rigidity, the method with the PDS of ANSYS procedure and the Monte Carlo method were applied to the stochastic finite element method. A variety of design parameters as high-speed motorized spindle's random input variables were selected, the method and process of high-speed motorized spindle reliability analysis of rigidity were proposed, the high-speed motorized spindle reliability and each random parameter sensitivity chart and the sensitivity value have been obtained. Based on this, the influence of high-speed motorized spindle reliability of various parameters was inquired. The results indicate that it can provide the reference to enhance the high-speed motorized spindle reliability.