Quasi-zero-stiffness vibration sensor system

被引：0
|
作者：
Tuo, Ji-Ying [1 ,2 ]
Deng, Zhao-Xiang [1 ,3 ]
Zhang, He-Shan [1 ]
Huang, Wei [1 ]
机构：
[1] School of Automotive Engineering, Chongqing University, Chongqing,400044, China
[2] College of Vehicle Engineering, Chongqing University of Technology, Chongqing,400054, China
[3] State Key Laboratory of Vehicle NVH and Safety Technology, China Automotive Engineering Research Institute Co., Ltd., Chongqing,400039, China
来源：
Jilin Daxue Xuebao (Gongxueban)/Journal of Jilin University (Engineering and Technology Edition) | 2019年 / 49卷 / 01期
关键词：
Stiffness;
D O I：
10.13229/j.cnki.jdxbgxb20170387
中图分类号：
学科分类号：
摘要：
In order to accurately real-timely and conveniently measure the absolute vibration displacement while taking into account the small displacement application, a new sensor system with cam-roller-spring negative stiffness mechanism is proposed. The dynamic equation of the sensor system is deduced based on the static analysis. The harmonic balance method is applied to analyze the dynamic characteristics of the system under base excitation. The first-order approximations of the amplitude and the phase precisions of the sensor system are obtained. The effects of different pre-compression of horizontal springs, damping ratio and input amplitude on the performance of dynamic measurement are further discussed using numerical method. The proposed sensor system may provide an alternative or much better measurement solution to various vibration control problems. © 2019, Editorial Board of Jilin University. All right reserved.
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页码：24 / 29
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