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。
In order to improve the design quality of the spindle component of bearing machine and shorten the cycle of design, The design transfer matrix algorithm is put forward by Using C# sofiward,The critical module scheme of speed spindle bearing testing machine based on the transfer matrix theory is developed.The module can added support bearing stiffness, shear effect in shaft segment, inertia in the process of Swing, gyroscopic effect, bearing inner ring and additional parts to the transfer matrix, using stepwise scanning and ＂ Golden section law ＂ automatic switching method to search the exact solutions. Through dynamic curve displays the results in search and the loop speed can be controlled in the process of solving. As an illustration, the machine spindle of bearing model NU2209 finally is solved to implement of the critical speed quickly and accurately, and the results were compared with ANSYS analysis and the test data. It shows that The module has the advantages of accurate calculation, friendly interface, simple operation, fast running speed and less memory occupation, which can completely meet the requirements of bearing tester to analysis of the critical speed.
出处
《机械设计与制造》
北大核心
2017年第11期122-125,共4页
Machinery Design & Manufacture
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)
关键词
轴承试验机
C#
传递矩阵法
临界转速
转子动力学
Bearing Testing Machine
C#
Transfer Matrix Method
Critical Speed
Rotor Dynamics
