永磁悬浮带式输送机横向振动特性

doi:10.3901/JME.260264

摘要/Abstract

摘要： 永磁悬浮带式输送机是一种新型低阻力、低能耗连续运输设备，其横向振动是制约系统稳定性提升的主要因素之一。为深入研究其横向振动机理，将永磁悬浮带式输送机等效为具有质量-弹簧-阻尼支承的梁模型，并基于Kelvin-Voigt粘弹性理论建立了其横向振动模型，同时采用伽辽金截断法和Newmark-β算法对该模型进行求解。此外，选取永磁悬浮托辊的横向振动变化作为研究永磁悬浮带式输送机横向振动的核心，并通过数值仿真分析，探讨了初始条件下的横向振动响应、不同工况参数的影响以及稳定运行时受物料激励的横向振动特性。仿真结果表明：初始条件下，永磁悬浮托辊横向振动呈现周期性特征，振幅随时间逐渐增大，且在低频范围内会发生共振；输送带速度的增加会加剧永磁悬浮托辊的横向振动，而加速度和张紧力的增加则能有效降低其横向振动；在物料激励的作用下，永磁悬浮托辊表现出显著的隔振特性。为验证理论模型的有效性，搭建了永磁悬浮带式输送机实验平台进行实验验证。并通过设计对比实验，选取输送带的横向振动变化作为评价指标，分析了在不同工况下永磁悬浮托辊与传统托辊对输送带横向振动的影响。对比实验结果表明：相较于传统托辊，永磁悬浮托辊在低速和重载工况下有效降低了输送带横向振动。研究结果为永磁悬浮带式输送机横向振动分析提供了参考。

关键词: 永磁悬浮带式输送机, 横向振动, 梁模型, 伽辽金截断法, Newmark-β算法, 隔振特性

Abstract: The permanent magnetic levitation belt conveyor is a new type of continuous transportation equipment with low resistance and low energy consumption, and its transverse vibration is one of the main factors restricting the system stability improvement. In order to study the transverse vibration mechanism in depth, this paper adopts the approach of equating the permanent magnetic levitation belt conveyor to a beam model with mass-spring-damping support, and establishes a transverse vibration model based on Kelvin-Voigt viscoelasticity theory, and at the same time, adopts the Galerkin truncation method and Newmark-β algorithm to solve the model. In addition, this paper selects the transverse vibration variation of permanent magnetic levitation rollers as the core of the study of transverse vibration of permanent magnetic levitation belt conveyor, and analyzes through numerical simulation to explore the transverse vibration response under the initial conditions, the influence of different working condition parameters, and the transverse vibration characteristics of the excitation of the material during the stable operation. The simulation results show that: under the initial conditions, the transverse vibration of permanent magnetic levitation rollers presents periodic characteristics, the amplitude increases gradually with time, and resonance occurs in the low frequency range; the increase of conveyor belt speed exacerbates the transverse vibration of permanent magnetic levitation rollers, while the increase of acceleration and tension can effectively reduce its transverse vibration; under the action of the material excitation, the permanent magnetic levitation rollers exhibit significant vibration isolation characteristics. In order to verify the effectiveness of the theoretical model, the experimental platform of permanent magnetic levitation belt conveyor is built for experimental verification. And through the design of comparative experiments, the lateral vibration of the conveyor belt is selected as the evaluation index, and the effects of magnetic levitation rollers and traditional rollers on the lateral vibration of the conveyor belt are analyzed under different working conditions. The results of the comparative experiments show that compared with the traditional rollers, the permanent magnetic levitation rollers effectively reduce the transverse vibration of the conveyor belt under low speed and heavy load conditions. The results provide a reference for the analysis of transverse vibration of permanent magnetic levitation belt conveyor.

Key words: permanent magnetic levitation belt conveyor, transverse vibration, beam model, Galerkin truncation method, Newmark-β algorithm, vibration isolation characteristics

中图分类号:

TH22

胡坤, 陈卓, 蒋浩, 牛杰, 孙亚伟. 永磁悬浮带式输送机横向振动特性[J]. 机械工程学报, 2026, 62(15): 421-437.

HU Kun, CHEN Zhuo, JIANG Hao, NIU Jie, SUN Yawei. Transverse Vibration Characteristics of Permanent Magnetic Levitation[J]. Journal of Mechanical Engineering, 2026, 62(15): 421-437.

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链接本文: http://www.cjmenet.com.cn/CN/10.3901/JME.260264

http://www.cjmenet.com.cn/CN/Y2026/V62/I15/421

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