Results 171 to 180 of about 351 (212)

A Quasi-Zero-Stiffness-Based Sensor System in Vibration Measurement

IEEE Transactions on Industrial Electronics, 2014
Quasi-zero-stiffness (QZS) systems have been extensively studied and used as a useful vibration isolation device. In this paper, the feasibility of the application of a QZS system for vibration measurement is investigated. The structural parameters of the QZS system are first analyzed to ensure that the system is staying at stable equilibriums ...
Xiuting Sun, Xing Jian Jing, Jian Xu 0005, Li Cheng 0002   +3 more
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A Tunable Quasi-Zero Stiffness Mechanism for Thermal Compensation of a MEMS Gravimeter

2021 IEEE 16th International Conference on Nano/Micro Engineered and Molecular Systems (NEMS), 2021
For the requirements of high sensitivity and long-term stability of a MEMS gravimeter. This paper presents a tunable quasi-zero stiffness mechanism by a complementary quasi-zero stiffness structure of the pre-shaped bistable beam and conventional folded springs.
Xiaopeng Zhang, Xueyong Wei, Yang Gao, Minghui Zhao, Yonghong Qi, Libo Zhao 0001, Zhuangde Jiang   +6 more
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A torsion–translational vibration isolator with quasi-zero stiffness

Nonlinear Dynamics, 2019
In this paper, a torsion–translational quasi-zero-stiffness (TT QZS) isolator with convex ball–roller mechanisms was proposed to attenuate the torsion and translational vibrations along shaft systems simultaneously. The mathematical model of the isolator was established, based on which the static characteristics of the isolator were analyzed and the ...
Qianlong Zhang, Shuyan Xia, Daolin Xu, Zhike Peng   +3 more
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Study on the Global Bifurcation of Quasi-Zero-Stiffness System

Applied Mechanics and Materials, 2013
According to the characteristics of the quasi zero stiffness (QZS) system, a dynamics approximation model is established. The effect of excitation force amplitude, frequency and stiffness on the dynamic characteristics of the system is studied by continuation algorithm. The global bifurcation diagram with a wide range of parameters is achieved by using
Qing Chao Yang, Li Hua Yang, Yan Ping Chen, Hao Kai Lai   +3 more
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On the force transmissibility of a vibration isolator with quasi-zero-stiffness

Journal of Sound and Vibration, 2009
In this article the force transmissibility of a quasi-zero-stiffness (QZS) isolator is considered. The isolator comprises a vertical spring and two oblique springs that are either linear, linear with pre-stress or softening nonlinear with pre-stress.
Carrella, A., Brennan, M.J., Kovacic, I., Waters, T.P.   +3 more
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A torsion quasi-zero stiffness harvester-absorber system

Acta Mechanica Sinica
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Wang, Qiang, Zhou, Jiaxi, Wang, Kai, Pan, Hongbin, Gao, Jinghang, Lin, Qida, Tan, Dongguo   +6 more
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On the analytical and experimental assessment of the performance of a quasi-zero-stiffness isolator

Journal of Vibration and Control, 2013
This paper presents a study of a quasi-zero-stiffness (QZS) isolator. A unique relationship between the geometry configuration and the stiffness of the spring elements is obtained in order to design the property of high-static-low-dynamic stiffness. Analytical solutions of the nonlinear QZS system are derived with the harmonic balance method for the ...
Daolin Xu, Yueying Zhang, Jiaxi Zhou, Jingjun Lou   +3 more
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Energy harvesting efficiency of a quasi-zero stiffness system

AIP Conference Proceedings, 2022
Jerzy Margielewicz, Damian Gąska, Grzegorz Litak, Piotr Wolszczak, Shengxi Zhou   +4 more
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Active Control of Quasi-Zero-Stiffness Vibration Isolator with Variable Load

International Journal of Structural Stability and Dynamics
Quasi-zero-stiffness (QZS) isolator has great application potential in the field of low-frequency vibration isolation due to its high-static and low-dynamic (HSLD) nonlinear stiffness characteristic, but it is precisely this characteristic that makes it very sensitive to load changes.
Ke Sun, Jie Tang, Yukang Yang, Bolong Jiang, Yinghui Li, Dengqing Cao   +5 more
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Passive resonance avoidance in quasi-zero-stiffness isolation

Quasi-zero-stiffness (QZS) vibration isolators are effective for low-frequency vibration isolation but can exhibit undesirable large responses near their low resonant frequencies. This study proposes and experimentally demonstrates a passive resonance-avoidance strategy based on bistable switching between a high-stiffness (HS) state and a QZS state ...
Seokgyu Yang, Somya Ranjan Patro, Hemant Sharma, Seung-Je Cho, Jeong-Gil Kim, Jin Woong Lee, Jaehyung Ju, Jinkyu Yang   +7 more
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