Quasi-zero-stiffness vibration isolation: designs, improvements and applications

C Liu, W Zhang, K Yu, T Liu, Y Zheng - Engineering Structures, 2024 - Elsevier
Most of the engineering vibrations are harmful, due to many unfavorable consequences
caused by them, such as structural damage, poor working accuracy, etc., making it …

Design and testing of a parabolic cam-roller quasi-zero-stiffness vibration isolator

S Zuo, D Wang, Y Zhang, Q Luo - International Journal of Mechanical …, 2022 - Elsevier
Circular cam-roller (CCR) quasi-zero stiffness (QZS) vibration isolators have been
extensively studied. As the CCR isolator can only achieve low stiffness in a very small range …

A quasi-zero-stiffness device capable of vibration isolation and energy harvesting using piezoelectric buckled beams

C Liu, R Zhao, K Yu, HP Lee, B Liao - Energy, 2021 - Elsevier
A quasi-zero-stiffness (QZS) device is proposed for both vibration isolation and energy
harvesting based on a concept of converting part of the vibrational energy into electrical …

Enhanced vibration isolation performance of quasi-zero-stiffness isolator by introducing tunable nonlinear inerter

C Liu, K Yu, B Liao, R Hu - … in Nonlinear Science and Numerical Simulation, 2021 - Elsevier
The concept of quasi-zero-stiffness (QZS) vibration isolator was proposed inrecent decades
aiming at improving the low-frequency isolation performance in a passive manner. However …

In-plane quasi-zero-stiffness vibration isolator using magnetic interaction and cables: Theoretical and experimental study

C Liu, R Zhao, K Yu, B Liao - Applied Mathematical Modelling, 2021 - Elsevier
Abstract Quasi-zero-stiffness (QZS) vibration isolators can achieve much wider isolation
region than equivalent linear isolators. However, most of the existing QZS isolators are …

Accurate modeling and analysis of a typical nonlinear vibration isolator with quasi-zero stiffness

C Liu, K Yu - Nonlinear Dynamics, 2020 - Springer
A typical quasi-zero stiffness (QZS) vibration isolator composed of two lateral springs and a
vertical spring has been widely studied previously, aiming to widen the frequency range of …

[HTML][HTML] On the characteristics of a quasi-zero-stiffness vibration isolator with viscoelastic damper

C Liu, J Tang, K Yu, B Liao, R Hu, X Zang - Applied Mathematical Modelling, 2020 - Elsevier
Abstract Quasi-zero-stiffness (QZS) vibration isolators have been widely studied in previous
literature, in which the viscous damping was adopted. In this paper, the QZS isolator with …

Simultaneous energy harvesting and vibration isolation via quasi-zero-stiffness support and radially distributed piezoelectric cantilever beams

C Liu, R Zhao, K Yu, HP Lee, B Liao - Applied Mathematical Modelling, 2021 - Elsevier
Most of the existing energy harvesters are based on vibration amplification, which inevitably
causes large disturbing force transmitted to the base. In this paper, a novel energy …

Superharmonic resonance of the quasi-zero-stiffness vibration isolator and its effect on the isolation performance

C Liu, K Yu - Nonlinear Dynamics, 2020 - Springer
Abstract Quasi-zero-stiffness (QZS) vibration isolator seeks better isolation performance by
lowering the natural frequency while maintaining the same static load bearing capacity as …

Design and experimental study of a quasi-zero-stiffness vibration isolator incorporating transverse groove springs

C Liu, K Yu - Archives of Civil and Mechanical Engineering, 2020 - Springer
The concept of quasi-zero-stiffness (QZS) vibration isolator was proposed in recent decades
to improve the low-frequency isolation performance without increasing the static …