机车牵引电机转子模态试验及仿真优化研究  

Modal Test and Simulation Optimization of Locomotive Traction Motor Rotors

作　　者：张哲 秦转丽 ZHANG Zhe;QIN Zhuanli(CRRC Yonhji Electric Co.,LTD.,Xi’an 710000,China;Shanxi Provincial Key Laboratory of Traction Motors for Rail Transit,Yongji Shanxi 044500,China)

机构地区：[1]中车永济电机有限公司,西安710000 [2]轨道交通牵引电机山西省重点试验室,山西永济044500

出　　处：《微电机》2024年第1期14-17,共4页Micromotors

基　　金：轨道交通牵引电机山西省重点实验室自然基金(201905D121006);国家重点研发计划资助(2021YFB3803005)。

摘　　要：牵引电机转子作为电机旋转的核心,转子的固有频率应避开实际的工作频率、工作转速。基于软件的有限元分析法是目前在设计阶段应用最广泛的固有频率计算方法,而影响计算结果准确性包括材料参数、各部件间的实际接触状态等。通过LMS公司的采集系统进行实际模态测试,并采用Ansys的有限元分析法,考虑导条和端环、导条和铁心、铁心和转轴实际接触状态计算转子的固有频率。根据实际模态测试结果,以验证Ansys计算结果的实效性,为进一步提高牵引电机转子模态仿真精度提供有益参考,也为进一步改进转子结构,保证转子在实际运行中不会发生共振提供依据。The rotor of traction motor is the core of the motor rotation,and the natural frequency design of the rotor should avoid the actual operating frequency and speed.The finite element analysis method based on software is currently the most widely used natural frequency calculation method in the design phase,which affects the accuracy of calculation results,including material parameters,actual contact states between components,etc.Actual modal testing was conducted using the LMS company's acquisition system,and the finite element analysis method of Ansys was used to calculate the natural frequency of the rotor considering the actual contact state between the guide bar and end ring,guide bar and iron core,iron core and shaft.Based on the acquisition system of LMS company in Belgium,actual modal testing was conducted to verify the effectiveness of Ansys calculation results,provided a useful reference for further improving the modal simulation accuracy of the traction motor rotor,and provided a basis for further improving the rotor structure and ensuring that the rotor will not have resonance in actual operation.

关 键 词：牵引电机鼠笼转子 有限元分析 模态测试 固有频率 共振 

分 类 号：TM306[电气工程—电机] TM343