重载磁力轴承力学特性和热特性分析与优化

Analysis and Optimization of Heavy-Load Magnetic Bearings in Mechanics and Thermal Characteristics

磁力轴承在转子系统的稳定性分析中的应用越来越广泛,因此保证磁力轴承特性分析准确极为重要。为了达到承载力要求,利用Maxwell软件对磁力轴承的定子外径和磁极宽度等进行了优化分析,从而设计出符合要求的结构。并利用Maxwell软件计算出该磁力轴承在通电状态时产生的损耗,通过和Workbench联合,进行磁-热耦合分析,深入地研究磁力轴承温度场分布情况,从而为该重载磁力轴承的应用提供理论基础。也对设计的重载磁力轴承进行电磁力标定实验和温升实验分析,为后续研究提供参考。

More and more research are focus on magnetic bearing in the stability analysis of rotor system. Therefore, it is velT important to ensure the accuracy of characteristics analysis of magnetic bearings. In order to meet the requirement of bearing capacity, Maxwell software is used to optimize the stator external diameter and the magnet pole width of the magnetic bearing so as to design a structure that reach the requirenlents. And use Maxwell software to calculate the copper loss and iron loss of the magnetic bearing when it is energized. Through the combination with Workbench, coupling the electromagnetic and temperature fields in order to deeply studying the distribution of the temperature field of the magnetic bearing, so as to provide theoretical basis for the application of heavy-duty magnetic bearings. It is also related to analysis of electromagnetic force and temperature calibration experiments about the designed heavy--load magnetic bearing, providing a reference for the future study.