Analysis of vibration isolation characteristics of a compound nonlinear low frequency vibration isolator

被引：0
|
作者：
Li X.-P. [1 ,2 ]
Sun W.-Q. [2 ]
Shang D.-Y. [2 ]
Xuan S.-Y. [2 ]
机构：
[1] State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun
[2] School of Mechanical Engineering & Automation, Northeastern University, Shenyang
来源：
Chuan Bo Li Xue/Journal of Ship Mechanics | 2022年 / 26卷 / 07期
关键词：
Incremental harmonic balance method (IHB); Inerter; Low-frequency vibration; Ship power equipment; Vibration isolator;
D O I：
10.3969/j.issn.1007-7294.2022.07.013
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Suppression of the low-frequency vibration of ship power equipments has become one of the major concerns. The nonlinear characteristics of inverters were obtained by using an inclined inerter structure. A composite nonlinear low frequency vibration isolation system was constructed by combining the inerter structure with the classic ISD (inerter-spring-damper) vibration isolator. The steady-state frequency response relationship and force transmission rate of the system were obtained by using the harmonic balance method. Influence of the inertia-mass ratio and spring stiffness on the vibration isolation system was analyzed. Comparison with the classic ISD and the QZS (quasi-zero stiffness) vibration isolator shows that the composite nonlinear low frequency vibration isolation system has a wider frequency band and a better force transmissibility. These findings provide new ideas for the design of low-frequency vibration isolators. © 2022, Editorial Board of Journal of Ship Mechanics. All right reserved.
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页码：1077 / 1087
页数：10
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