基于传递矩阵的转子系统动力学模块开发

发布时间：2018-01-11 16:34

本文关键词：基于传递矩阵的转子系统动力学模块开发　出处：《机械设计与制造》2017年11期 　论文类型：期刊论文

【摘要】：为提高轴承试验机主轴部件临界转速设计计算的准确性和简便性,开发了基于传递矩阵理论和C#编程语言的临界转速求解模块。该模块可以将支撑轴承刚度、轴段剪切应力、回转效应和摆动惯性、轴承内圈及附加零件等因素加入到传递矩阵中,采用逐步扫描和"拟黄金分割法"自动切换的方法搜索临界转速,并且通过曲线动态显示搜索结果,搜索过程中求解速度可以控制。最后以轴承型号NU2209的试验机主轴为例进行求解,实现临界转速的快速精确求解,并将结果与ANSYS分析数据进行对比。实践表明:该模块计算准确、界面友好、操作简单、运行速度快、占用内存少,完全可以满足轴承试验机对临界转速的分析要求。
[Abstract]:In order to improve the accuracy and simplicity of the design and calculation of the critical speed of the spindle parts of the bearing testing machine, a critical speed calculation module based on the transfer matrix theory and C # programming language is developed, which can support the stiffness of the bearing. Factors such as shaft shear stress, rotary effect and swing inertia, bearing inner ring and additional parts are added to the transfer matrix, and the critical speed is searched by means of stepwise scanning and automatic switching of "quasi-golden section" method. And through the curve dynamic display search results, the search speed can be controlled in the search process. Finally, taking the spindle of the bearing type NU2209 as an example, to achieve the rapid and accurate solution of critical speed. The results are compared with the ANSYS analysis data. The practice shows that the module has the advantages of accurate calculation, friendly interface, simple operation, fast running speed and less memory. It can fully meet the critical speed analysis requirements of the bearing testing machine.
【作者单位】：河南科技大学机电工程学院;机械装备先进制造河南省协同创新中心;
【基金】：国家科技部国防科工委基金项目(JPT-125-171) 河南省杰出人才创新基金项目(144200510020) 广东省省级科技计划项目(2013B011301020)
【分类号】：TH133.3
【正文快照】： 1引言轴承试验机是轴承性能试验的专用设备,其主轴部件的临界转速是轴承试验机的重要性能指标之一。传递矩阵法是计算主轴临界转速的重要方法,传递矩阵的阶数不会随着系统自由度的增加而增加,具有编程简单、运行速度快、占用资源少的特点,特别适合于链式系统[1-3]。如果将支撑

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