特种交流电机转子的非线性机电耦联双重共振

通过对交流电机转子的非线性机电耦联双得共振研究，建立了统一的非线性机电耦联数学模型。结果发现，当电机有三相不对称运行时，转子的固有频率发生分裂现象。用能时法求得非线性方程双重共振的数值解，进而对交流大电机及细长型种电机减振设计提出改进措施，交流电机振动实验台的实验结果与理论结果基本吻合。

STUDING ON NONLINEAR DOUBLE-RESONANCES OF MECHANICAL AND ELECTRICAL COUPLING OF SPECIAL TYPE ALTERNATING CURRENT MACHINES ROTOR

This paper presents the unified nonlinear mathematical model of mechanical and electrical coupling established on the results of the study on the nonlinear double-resonances of mechanical and electrical coupling of the rotor of special type alternating current machines. An analytical solution was derived using the energy method. Phenomena of spliting of natural frequency was observed. The double-resonances question rotor was solved. The theoretical results are in good agreement with the experimental results. Some useful results obtained have important applications in analysing the coupled mechanical and electrical vibration of alternating current machines.