【作者】 程道来； 高相龙； 纪林章； 石钢； 仪垂杰； 范建祥；

【Author】 CHENG Dao-lai;GAO Xiang-long;JI lin-zhang;SHI Gang;YI Chui-jie;FAN Jian-xiang;School of Railway Transport, Shanghai Institute of Technology;School of Mechanical Engineering, Shanghai Institute of Technology;Qingdao Technological University,Qingdao R&D Center of Energy Equipment;

【机构】 上海应用技术大学轨道交通学院； 上海应用技术大学机械工程学院； 青岛理工大学能源与动力装备研究发展中心；

【摘要】 在调试高速转子实验台时发现:转子达到临界转速时振动过大导致转速升不上去等问题。经过查阅国内外相关文献,决定基于传递矩阵法并建立模型对转子实验台进行转子临界转速的计算以及有限元模态分析,然后通过开展试验验证,获取振动转子的频谱图、波形图、轴心轨迹图和幅值图等图形。经过比较分析得出:转子实验台过临界出现转子振幅激增、振幅在过临界转速后滞留和转子降速过临界转速时临界转速值偏移这三大问题的原因是实验台与支撑桌子不平衡及安装引起的结论,解决了在转子实验台进行试验会因振动过大可能对学生带来的安全问题。更多还原

【Abstract】 When an experimental platform of the high speed rotor is tested, some problems occur such as the rotor’ vibration is abnormal at the critical speed and the speed cannot be raised for the speed of the rotor is passing through critical speed. Base on domestic and foreign research results, some works are made in order to analysis these problems: first by transfer matrix method for critical speed calculation and finite element software ANSYS to rotor test-bed of vibration test bench of rotor critical speed calculation and modal analysis, then through rotor test rig to verify, get the rotor frequency spectrum,waveform diagram, axis locus and amplitude diagram for platform. The conclusion of problems are that the table is not balanced and installation of the experimental platform.更多还原