Study on the Dynamic Characteristics of a Double-Layered Hyper-Damping Isolator

被引：0
|
作者：
Liu H.-P. [1 ,2 ]
Luo J. [2 ]
机构：
[1] School of Mechanical Engineering, University of Science and Technology Beijing, Beijing
[2] Beijing Institute of Spacecraft System Engineering, Beijing
来源：
Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology | 2020年 / 40卷 / 01期
关键词：
Double-layered isolating; Hyper-damping; Isolator; Response performance;
D O I：
10.15918/j.tbit1001-0645.2018.395
中图分类号：
学科分类号：
摘要：
A new double-layered isolator was proposed, compose of positive and negative stiffness elements. A dynamic mechanical model was established for the double-layered hyper-damping isolator. Based on this dynamic model, the frequency response characteristics, time history series and force transmission rate were provided, respectively, by using Laplace transformation and 4th-order Runge-Kutta methods. The calculation results show that, comparing the dynamic responses of the single-layered and double-layered reference linear isolators and single-layered hyper-damping isolators, the dynamic responses of the double-layered hyper-damping isolators can be controlled effectively in middle and low frequency domain. Especially, the double-layered isolator is optimal for the control of multi-frequency excitations. In addition, the influences of design parameters, stiffness ratio α and factor of safety ε, on the dynamic performance were also studied. According to the calculating results, the hyper-damping isolator can realize the dynamic performance without resonance peak when the design parameters are chosen properly. © 2020, Editorial Department of Transaction of Beijing Institute of Technology. All right reserved.
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页码：17 / 22
页数：5
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