基于超声悬浮原理的非线性转子系统振动抑制研究  

Vibration Suppression of Nonlinear Rotor Systems Based on Ultrasound Levitation Principle

作　　者：魏天宇 陈建恩[1,2] 刘军[1,2] 邢恩宏 WEI Tianyu;CHEN Jian'en;LIU Jun;XING Enhong(Tianjin Key Laboratory for Advanced Mechatronic System Design and Intelligent Control,Tianjin University of Technology,Tianjin 300384,China;National Demonstration Center for Experimental Mechanical and Electrical Engineering Education,Tianjin University of Technology,Tianjin 300384,China)

机构地区：[1]天津理工大学天津市先进机电系统设计与智能控制重点实验室,天津300384 [2]天津理工大学机电工程国家级实验教学示范中心,天津300384

出　　处：《噪声与振动控制》2025年第1期40-45,共6页Noise and Vibration Control

基　　金：国家自然科学基金资助项目(11872274)。

摘　　要：针对抑制非线性转子系统振动难问题,提出基于超声驻波悬浮原理抑制该系统振动的方法。首先阐述超声驻波悬浮力的基本理论,根据Gor′Kov理论构造超声悬浮力的数学模型,并构建超声悬浮非线性转子系统动力学模型。其次研究谐振腔高度和声场强度对抑制系统振动的影响。基于超声悬浮非线性转子系统,引入正位置反馈(Positive Position Feedback,PPF)控制器对其振动加以抑制,提高系统的稳定性。数值仿真结果表明,基于超声驻波悬浮原理,选取适当的声场参数可有效抑制非线性转子系统的振动,PPF控制器与超声悬浮转子系统耦合可显著增强对系统的振动抑制效果和系统在高转速区的稳定性。In order to overcome the difficulty of vibration suppression for a nonlinear rotor system,a method of utilizing the principle of ultrasonic standing wave suspension was proposed to suppress the vibrations in the system.Firstly,the fundamental theory of ultrasonic standing wave levitation forces was introduced,and the mathematical model of ultrasonic levitation forces was constructed based on the Gor′Kov theory.Secondly,the influence of cavity heights and sound field intensity on the suppression of system vibration was studied.Based on the ultrasonic levitation nonlinear rotor system,a positive position feedback(PPF)controller was introduced to suppress the vibrations and improve the stability of the system.The numerical simulation results show that by utilizing the principle of ultrasonic standing wave suspension,selection of appropriate sound field parameters can effectively suppress the vibration of nonlinear rotor systems.Coupling the PPF controller with the ultrasonic suspension rotor system can significantly enhance the vibration suppression effect and stability of the system in high-speed rotation regions.

关 键 词：声学 超声驻波悬浮 超声悬浮转子 振动抑制 能量轨道 PPF控制器 

分 类 号：O322[理学—一般力学与力学基础] TB53[理学—力学] V231.92[理学—物理]