超导电动磁浮列车悬浮和导向特性

Levitation and Guidance Characteristics of Superconducting Electrodynamic Maglev Train

以超导电动磁浮列车为研究对象,建立了单个转向架与悬浮和导向线圈的场-路-运动耦合数值模型,然后对该模型进行求解并验证了其正确性。基于该模型,分析了不同垂向位移和横向位移下单个转向架所受的悬浮力与导向力,并揭示了无交叉连接和交叉连接“8”字形线圈之间的关系。结果表明:无交叉连接“8”字形线圈产生的作用力主要为悬浮力,交叉连接“8”字形线圈产生的作用力主要为导向力;随着横向位移的增大,导阻比先增大后减小;随着垂向位移的增大,浮阻比先增大后减小。

Taking the superconducting electrodynamic maglev train as the research object,a field-circuit-motion coupling numerical model of a bogie and levitation/guidance coil was established. Then, the model was solved and its correctness was verified. Finally,the levitation force and guidance force of a bogie under different vertical displacements and lateral displacements were analyzed and the relationship between non-cross connection and cross-connection figure-eight-shaped coils was revealed based on the model. The results show that the force generated by no-cross connection figure-eightshaped coils is mainly the levitation force,and the force generated by cross connection figure-eight-shaped coils is mainly the guidance force. With the increase of lateral displacement,the guidance-drag ratio increases first and then decreases. With the increase of vertical displacement,the levitation-drag ratio also increases first and then decreases.