Design and experiment of a mini isolator with fluid damping

被引：0
作者：
Huang Z. [1 ,2 ]
Yang D. [1 ,2 ]
Jiang S. [1 ,2 ]
Zhang Z. [1 ,2 ]
机构：
[1] Institute of Vibration, Shock and Noise, Shanghai Jiao Tong University, Shanghai
[2] State Key Laboratory of Mechanical Systems and Vibration, Shanghai Jiao Tong University, Shanghai
来源：
Zhendong yu Chongji/Journal of Vibration and Shock | 2021年 / 40卷 / 14期
关键词：
Fluid damping; Metal diaphragm; Two-parameter model; Vibration and wave; Vibration isolation;
D O I：
10.13465/j.cnki.jvs.2021.14.024
中图分类号：
学科分类号：
摘要：
To isolate the vibration for sensitive instruments, a mini vibration isolator with fluid damping was presented. A metal diaphragm was used as an elastic element and the viscous fluid was used to dissipate vibration energy. The analytical expression for the deflection of the metal diaphragm was derived. Then a dynamic model of the vibration isolator was established, and the dynamic stiffness expression of a two-parameter model with stiffness-damping in parallel was also obtained. By analyzing the vibration transmission characteristics, a method for designing the stiffness and damping coefficients according to the vibration isolation performance requirement was proposed. The experimental and theoretical results agree well in terms of acceleration transmission rate, and the result shows that the resonance peak can be suppressed below 6 dB. © 2021, Editorial Office of Journal of Vibration and Shock. All right reserved.
引用
收藏
页码：180 / 185
页数：5
相关论文
共 15 条
  • [1] (2016)
  • [2] (2017)
  • [3] DAVIS L P, CUNNINGHAM D C, DUNCAN D H., Three parameter viscous damper and isolator
  • [4] DAVIS L P, WILSON J F, JEWELL R E, Et al., Hubble space telescope reaction wheel assembly vibration isolation system
  • [5] XIE Xiling, CHEN Yanhao, DIAO Jianchao, Et al., Experiment of an isolator fabricated with diaphragm bellows and viscous fluid, Noise and Vibration Control, 37, 4, pp. 201-205, (2017)
  • [6] YANG Jianfeng, XU Zhenbang, LIU Hongwei, Et al., Design of vibration isolator for optical payload on orbit, Optics and Precision Engineering, 22, 12, pp. 3294-3302, (2014)
  • [7] CHEN Tao, XU Zhenbang, WU Qingwen, Et al., Research of viscous fluid damping isolator used in space telescope, Chinese Journal of Space Science, 35, 5, pp. 618-625, (2015)
  • [8] (2003)
  • [9] (2007)
  • [10] MIYAZAKI M, MITSUSAKA Y., Design of a building with 20% or greater damping, Proceeding of 10th World Conference Earthquake Engineering, (1992)
12