适应负载变化的准零刚度扭转隔振器设计与分析

摘要
图/表
参考文献(16)
相关文章 (15)

全文: PDF (1919 KB) HTML (1 KB)
输出: BibTeX | EndNote (RIS)

摘要针对现有准零刚度扭转隔振器仅适用于恒定负载的问题，设计了一种通过调节正刚度来适应负载变化，同步调节负刚度使隔振器始终工作在准零刚度状态的新型准零刚度扭转隔振器。该隔振器由提供负刚度的扭转磁弹簧和提供正刚度的弹簧片组成，其中扭转磁弹簧由径向磁化的内、外环磁铁组成，通过调节内、外环的轴向相对位置改变负刚度，利用等效磁荷法得到了磁弹簧的扭矩计算模型，分析了弹簧片参数对正、负刚度匹配后刚度特性的影响。建立了系统的动力学模型，采用谐波平衡法求解了隔振器的动态响应，分析了激励幅值和阻尼比对隔振器隔振性能的影响，结果表明，扭转隔振器在不同载荷状态下均具有良好的低频隔振效果。设计制造了隔振器样机，并进行了不同静载荷状态下的静力学实验，实验得到的扭矩-角位移曲线与理论计算结果吻合良好，实验结果表明，该隔振器可以通过调节磁弹簧的轴向相对位置和弹簧片的有效作用长度，实现正、负刚度的同步调节。
关键词：扭转隔振；准零刚度；可变负载；非线性分析

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	张春松1
	李学勇1
	2
	3
	张硕1
	徐定民1

关键词 ：扭转隔振, 准零刚度, 可变负载, 非线性分析

Abstract：A new torsion Quasi-Zero-Stiffness vibration isolator is proposed. It can adjust the positive stiffness to adapt to the load change, and adjust the negative stiffness synchronously to make the isolator always work in the quasi-zero-stiffness state. The vibration isolator is composed of a torsion magnetic spring (TMS) and leaf springs. The TMS is composed of inner and outer ring magnets magnetized radially. Adjusting the relative axial positions of the inner and outer rings can change the negative stiffness. The torque calculation model of the TMS is obtained using the equivalent magnetic charge method. The influences of spring parameters on the stiffness characteristics were analyzed. The dynamic model of the system was established and the dynamic response of the isolator was solved using harmonic balance method. The influence of excitation amplitude and damping ratio on the isolation performance of the isolator was analyzed. The results show that the isolator has good isolation effect under different loads. Vibration isolator prototype was manufactured, the experiment of torque and angular displacement curve is in good agreement with theoretical calculation results. The experimental results show that the isolator can realize the synchronous adjustment of positive and negative stiffness by adjusting the relative axial position of TMS and the effective length of spring.
Key words: torsion vibration isolation; quasi-zero-stiffness; variable load; nonlinear analysis

Key words： torsion vibration isolation quasi-zero-stiffness variable load nonlinear analysis

收稿日期: 2021-08-11 出版日期: 2022-12-15

引用本文:

张春松1，李学勇1，2，3，张硕1，徐定民1. 适应负载变化的准零刚度扭转隔振器设计与分析[J]. 振动与冲击, 2022, 41(23): 307-314.
ZHANG Chunsong1, LI Xueyong1,2,3, ZHANG Shuo1, XU Dingmin1. Design and analysis of quasi-zero stiffness torsional vibration isolator adapting to load changes. JOURNAL OF VIBRATION AND SHOCK, 2022, 41(23): 307-314.

链接本文:

http://jvs.sjtu.edu.cn/CN/ 或 http://jvs.sjtu.edu.cn/CN/Y2022/V41/I23/307

[1] XU J W, YANG X F, LI W, et al. Design of quasi-zero stiffness joint actuator and research on vibration isolation performance[J]. Journal of Sound and Vibration, 2020, 479:115367.
[2] 王晓杰, 刘辉, 郦文平, 等. 准零刚度扭转隔振器振动传递特性研究[J]. 机械工程学报, 2018,54(21):49-56.
WANG Xiao-jie, LIU Hui, LI Wen-ping, et al. Vibration transmission characteristics of a quasi-zero stiffness torsional isolator[J]. Journal of Mechanical Engineering, 2018,54(21):49-56.
[3] ZHANG Q L, XIA S Y, XU D L, et al. A torsion–translational vibration isolator with quasi-zero stiffness[J]. Nonlinear Dynamics, 2020, 99(2):1467-1488.
[4] CARRELLA A, BRENNAN M J, WATERS T P. Static analysis of a passive vibration isolator with quasi-zero-stiffness characteristic[J]. Journal of Sound and Vibration, 2007, 301:678-689.
[5] CARRELLA A, BRENNAN M J, WATERS T P, et al. Force and displacement transmissibility of a nonlinear isolator with high-static-low-dynamic-stiffness[J]. International Journal of Mechanical Sciences, 2012, 55(1):22-29.
[6] SHAN Y, WU W, CHEN X. Design of a miniaturized pneumatic vibration isolator with high-static-low-dynamic stiffness[J]. Journal of Vibration and Acoustics, 2015,137(4).
[7] 王云峰, 李博, 王利桐. 两端固支屈曲梁准零刚度隔振器的微振动隔振性能分析[J]. 振动与冲击, 2018,37(15):124-129.
WANG Yun-feng，LI Bo，WANG Li-tong. Micro-vibration isolation performance of a clamped-clamped buckled beam quasi-zero-stiffness isolator[J]. Journal of vibration and shock, 2018, 37(15): 124-129.
[8] ZHOU J X, XU D L, BISHOP S. A torsion quasi-zero stiffness vibration isolator[J]. Journal of Sound and Vibration, 2015, 338:121-133.
[9] ZHENG Y S, ZHANG X N, LUO Y, et al. Analytical study of a quasi-zero stiffness coupling using a torsion magnetic spring with negative stiffness[J]. Mechanical Systems and Signal Processing, 2018, 100:135-151.
[10] 刘兴天, 黄修长, 张志谊,等. 激励幅值及载荷对准零刚度隔振器特性的影响[J]. 机械工程学报, 2013，49(6): 89-94.
LIU Xing-tian, HUANG Xiu-chang, ZHANG Zhi-yi, et al. Influence of excitation amplitude and load on the characteristics of quasi-zero stiffness isolator[J]. Journal of Mechanical Engineering, 2013, 49(6): 89-94.
[11] HUANG X C, LIU X T, HUA H X. Effects of stiffness and load imperfection on the isolation performance of a high-static-low-dynamic-stiffness non-linear isolator under base displacement excitation[J]. International Journal of Non-Linear Mechanics, 2014, 65:32-43.
[12] 程春, 李舜酩, 王勇,等. 考虑载荷变化的准零刚度隔振器动态特性[J]. 振动、测试与诊断, 2017, 37(4): 743-749.
CHENG Chun, LI Shun-ming, WANG Yong, et al. Dynamic analysis of quasi-zero-stiffness vibration isolator considering load variation[J]. Journal of Vibration, Measurement and Diagnosis,2017, 37(4): 743-749.
[13] LAN C C, YANG S A, WU Y S. Design and experiment of a compact quasi-zero-stiffness isolator capable of a wide range of loads[J]. Journal of Sound and Vibration, 2014, 333(20):4843-4858.
[14] LE T D, NGUYEN V A D. Low frequency vibration isolator with adjustable configurative parameter[J]. International Journal of Mechanical Sciences, 2017, 134:224-233.
[15] YE K, JI J C, BROWN T. Design of a quasi-zero stiffness isolation system for supporting different loads[J]. Journal of Sound and Vibration, 2020, 471: 115198.
[16] RAVAUD R, LEMARQUAND G, LEMARQUAND V, et al. Permanent magnet couplings: field and torque three-dimensional expressions based on the coulombian model[J]. IEEE Transactions on Magnetics, 2009, 45(4):1950-1958.