Shock isolation ability of a spring-electromagnetic absorber based on semi-active control

被引：0
|
作者：
Zeng Z. [1 ,2 ]
Zhang L. [1 ,2 ]
Zhang C. [2 ]
Yan M. [1 ]
机构：
[1] School of Mechanical Engineering, Shenyang University of Technology, Shenyang
[2] Naval Research Academy, Beijing
来源：
Zhendong yu Chongji/Journal of Vibration and Shock | 2019年 / 38卷 / 14期
关键词：
Electromagnetic force; Nonlinear differential equation; Parameter expanding method; Semi-active controlling;
D O I：
10.13465/j.cnki.jvs.2019.14.002
中图分类号：
学科分类号：
摘要：
A novel semi-active control spring and electromagnet (SSEM) isolator was proposed to address the defect of too short distance of effective isolation of constant-force isolators. The principle of SSEM isolator is that the magnitude and direction of the electromagnetic force are veried by using different strategies to adapt the specific shock environment. The nonlinear differential equation of motion of the SSEM isolator was built according to the principle. Then the parameter expanding method was used to solve the equation to obtain the approximate analysis solution. The analysis results have an excellent agreement with numerical results using fourth-order Runge-Kutta method. The resulted performance was compared with the performance of constant-force isolators. The results demonstrate that the SSEM isolator outperform constant-force isolators, not only for the optimal isolator coefficient is better, but also for the SSEM isolator can fast recover to the equilibrium position. © 2019, Editorial Office of Journal of Vibration and Shock. All right reserved.
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页码：11 / 17
页数：6
相关论文
共 20 条
  • [1] Zhang C., Wang Y., Du J., Et al., Design of a passive constant force shock absorber and its characteristics, Journal of Vibration and Shock, 34, 13, pp. 176-181, (2015)
  • [2] Zhou J., Xiao Q., Xu D., Et al., A novel quasi-zero-stiffness strut and its applications in six-degree-of-freedom vibration isolation platform, Journal of Sound and Vibration, 394, pp. 59-74, (2017)
  • [3] Zhou J., Wang X., Xu D., Et al., Nonlinear dynamic characteristics of a quasi-zero stiffness vibration isolator with cam-roller-spring mechanisms, Journal of Sound and Vibration, 346, pp. 53-69, (2015)
  • [4] Huang H., Hui D., Accurate backbone curves for large-amplitude vibrations of imperfect rectangular plate with viscous damping, KSCE Journal of Civil Engineering, 19, 5, pp. 1-7, (2015)
  • [5] Wang Y., Xu D., Zhou J., Characteristic analysis of a ball-type vibration isolator with quasi-zero-stiffness, Journal of Vibration and Shock, 34, 4, pp. 142-147, (2015)
  • [6] Wang Y., Li S., Cheng C., Dynamic characteristics of a vehicle-seat-human coupled model with quasi-zero stiffness isolators, Journal of Vibration and Shock, 35, 15, pp. 190-196, (2016)
  • [7] Anvar V., Alexey Z., Artem T., Study of application of vibration isolators with quasi-zero stiffness for reducing dynamics loads on the foundation, Procedia Engineering, 176, pp. 137-143, (2017)
  • [8] Wu W., Chen X., Shan Y., Analysis and experiment of a vibration isolator using a novel magnetic spring with negative stiffness, Journal of Sound and Vibration, 333, pp. 2958-2970, (2014)
  • [9] Liu C., Jing X., Daley S., Et al., Recent advances in micro-vibration isolation, Mechanical Systems and Signal Processing, 56, pp. 55-80, (2015)
  • [10] Karnopp D., Crosby M.J., Harwood R.A., Vibration control using semi-active force generators, Journal of Engineering for Industry, 96, 2, pp. 619-626, (1974)
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