基于主动阻尼的屈曲梁准零刚度隔振技术研究

Abstract
Figure/Table
References (15)
Related Citation (15)

Download: PDF (1521 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract

The quasi-zero-stiffness (QZS) isolator has character of high-static-low-dynamic-stiffness, and can be employed to suppress low-frequency vibration. Active damping control can reduce the resonance peak with keeping the transmissibility in high frequency band unchanged. It is effective to improve the performance of a QZS isolator by employing active damping control. In this paper, a buckled beam QZS isolator was adopted, and based on its dynamic model the active damping control was engaged to build an active-damping-QZS isolation system. The relationship between the isolation system transmissibility and active damping was studied by a theoretical method. Dynamic simulation was carried out in the SIMULINK software to study the performance of the isolation system in three conditions of sweep frequency disturbance, sinusoidal disturbance, and random disturbance. Simulation results indicate that in low-frequency-region (≤0.1 Hz) the amplitude of vibration was suppressed 8-32 dB, while in the high-frequency-region (≥10 Hz) the effect of vibration vilation was not less than 36 dB. In the random base disturbance condition, the vibration RMS was reduced 36 dB.

Key words： buckled beam quasi-zero-stiffness(QZS) active damping vibration isolation

Received: 23 December 2019 Published: 28 April 2021

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	WANG Yunfeng1
	WU Shuang2
	LI Zhanxin3
	XU Shuo3

Cite this article:

WANG Yunfeng1,WU Shuang2,LI Zhanxin3, et al. A study on vibration isolation based on a buckled beam quasi-zero-stiffness isolator and active damping[J]. JOURNAL OF VIBRATION AND SHOCK, 2021, 40(8): 79-84.

URL:

http://jvs.sjtu.edu.cn/EN/ OR http://jvs.sjtu.edu.cn/EN/Y2021/V40/I8/79

［1］AGLIETTI G S, LANGLEY R S, GABRIEL S B. Model building and verification for active control of micro-vibrations with probabilistic assessment of the effects of uncertainties［J］. Journal of Mechanical Engineering Science, 2004,218(4): 389-399.

［2］LIU C C, JING X J, DALEY S, et al. Recent advances in micro-vibration isolation［J］. Mechanical System and Signal Processing, 2015,56(57): 55-80.

［3］徐道临,周杰,周加喜,等.碟形橡胶准零刚度隔振器的设计和特性分析［J］. 湖南大学学报(自然科学报), 2015,42(8): 22-28.
XU Daolin, ZHOU Jie, ZHOU Jaxi, et al. Design and analysis of a disc rubber vibration isolator with quasi-zero-stiffness characteristic［J］. Journal of Hunan University (Natural Science), 2015,42(8): 22-28.

［4］HAO Z F, CAO Q J. The isolation characteristics of an archetypal dynamical model with stable-quasi-zero-stiffness［J］. Journal of Sound and Vibration, 2015,340(1): 61-79.

［5］ALABUZHEV P M, ALABUZHEV P, RIVIN E I. Vibration protecting and measuring systems with quasi-zero stiffness［M］. New York: Hemisphere Publishing Corporation, 1989.

［6］ZHOU N, LIU K. A tunable high-static-low-dynamic stiffness vibration isolator［J］. Journal of Sound and Vibration, 2010,329(9): 1254-1273.

［7］CARRELLA A, BRENNAN M J, WATERS T P, et al. On the design of a high-static-low-dynamic stiffness isolator using linear mechanical springs and magnets［J］. Journal of Sound and Vibration, 2008,315(3): 712-720.

［8］HUANG X C, CHEN Y, HUA H X, et al. Shock isolation performance of a nonlinear isolator using Euler buckled beam as negative stiffness corrector: theoretical and experimental study［J］. Journal of Sound and Vibration, 2015,345(1): 178-196.

［9］PLATUS D L. Negative stiffness mechanism vibration isolation systems［J］. Vibration Control in Microelectronics, Optics, and Metrology, 1991,1619(1): 44-54.

［10］BENJAMIN A F, DAVID W S, MICHAEL R H, et al. Analytical and experimental investigation of buckled beams as negative stiffness elements for passive vibration and shock isolation systems［J］. Journal of Vibration and Acoustics, 2014,136(3): 1-12.

［11］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 Yunfeng, LI Bo, WANG Litong. 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.

［12］KARNOPP D. Active and semi-active vibration isolation［J］. Journal of Mechanical Design, 1995,117(13): 409-423.

［13］ELLIOTT S J, SERRAND M. Multichannel feedback control for the isolation of base-excited vibration［J］. Journal of Sound and Vibration, 2000,234(4): 681-704.

［14］BEARD A M, SCHUBERT D W, VON FLOTOW A H. Practical product implementation of an active/passive vibration isolation system［J］. Vibration Monitoring and Control, 1994,2264(1): 38-49.

［15］RAHIM M A, WATERS T P, RUSTIGHI E. Active damping control for vibration isolation of high-static-low-dynamic-stiffness isolators［C］// International Conference on Noise and Vibration Engineering. Leuven: ISMA, 2014.