摘要
磁悬浮列车磁轨耦合共振能使车身剧烈振动,导致车辆平顺性变差。为研究内共振发生条件,建立单点磁轨模型,得到电磁铁和电磁铁电路间机电耦合动力学微分方程。根据多尺度法得到耦合系统频率满足2:1时的内共振幅频方程和内共振一次近似解。数值计算结果表明:电磁铁等效质量、电磁系数、电路总电荷量以及电磁铁线圈等效电阻等参数是影响电磁铁及电量振幅峰值的因素。通过分析磁轨之间的内共振参数特性,得出各参数对磁轨幅值的影响规律和内共振产生条件,可为磁浮列车悬浮系统稳定性设计提供理论计算方法。
Electromagnet-track coupling resonance can induce severe vibration of the vehicle body, which will leads to poor ride-comfort of the vehicle. To study the conditions of internal resonance occurrence, a single point electromagnet-track model is established and the dynamic differential equations of electromechanical coupling between track and electromagnet circuit are obtained. Using the multiscale method, the internal resonance amplitude frequency equation and its first-order approximate solution of internal resonance are obtained when the coupling system frequency meets the ratio of 2: 1. The numerical results show that the equivalent mass of the electromagnet, the electromagnetic coefficient, the total charge of the circuit and the equivalent resistance of the coil of the electromagnet are the factors that affect the peak amplitude of the track and circuit electromagnet. By analyzing the characteristics of internal resonance parameters between the track and the electromagnet track, the influence law of each parameter on the amplitude of electromagnet track and the conditions of internal resonance occurrence is obtained. This work provides a theoretical calculation method for the stability design of maglev suspension system.
作者
苏红建
刘灿昌
栾军超
张鑫越
毛正杰
田晓
SU Hongjian;LIU Canchang;LUAN Junchao;ZHANG Xinyue;MAO Zhengjie;TIAN Xiao(School of Transportation and Vehicle Engineering,Shandong University of Technology,Zibo 255049,Shandong,China)
出处
《噪声与振动控制》
CSCD
北大核心
2023年第1期173-178,共6页
Noise and Vibration Control
基金
山东省重点研发计划资助项目(2019GGX104066)
山东省重大科技创新工程资助项目(2019JZZY010911)。
关键词
振动与波
磁悬浮
磁轨
内共振
机电耦合
多尺度法
vibration and wave
magnetic levitation
electromagnet track
internal resonance
electromechanical coupling
multi-scale method
作者简介
苏红建(1995-)男,江苏省泰安市人,硕士研究生,专业方向为考虑机电耦合共振的磁悬浮列车动力学分析与控制。E-mail:su13326393482@163.com;通信作者:刘灿昌,男,副教授,博士,硕士生导师,专业方向为非线性振动及其控制。
