Research on modeling and self-excited vibration mechanism in magnetic levitation-collision interface coupling system

作     者：Jinghu TANG Chaofeng LI Jin ZHOU Zhiwei WU Jinghu TANG;Chaofeng LI;Jin ZHOU;Zhiwei WU

作者机构：School of Mechanical Engineering&AutomationNortheastern UniversityShenyang 110819China Key Laboratory of Vibration and Control of Aero-Propulsion Systems of Ministry of Education of ChinaNortheastern UniversityShenyang 110819China School of Mechanical and Electrical EngineeringNanjing University of Aeronautics and AstronauticsNanjing 210016China 

出 版 物：《Applied Mathematics and Mechanics(English Edition)》 (应用数学和力学（英文版）)

年 卷 期：2024年第45卷第5期

页      面：873-890页

核心收录：

学科分类：0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 

基　　金：Project supported by the National Natural Science Foundation of China(No.12372005) 

主　　题：magnetic levitation coupling system self-excited vibration mechanical interface vibration frequency 

摘      要：The modeling and self-excited vibration mechanism in the magnetic levitation-collision interface coupling system are *** effects of the control and interface parameters on the system s stability are *** frequency range of self-excited vibrations is investigated from the energy point of *** phenomenon of self-excited vibrations is elaborated with the phase *** corresponding control strategies are briefly analyzed with respect to the vibration *** results show that when the levitation objects collide with the mechanical interface,the system s vibration frequency becomes larger with the decrease in the collision gap;when the vibration frequency exceeds the critical frequency,the electromagnetic system continues to provide energy to the system,and the collision interface continuously dissipates energy so that the system enters the self-excited vibration state.