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  1. Article

    Open Access

    Theoretical and experimental study of a bi-stable piezoelectric energy harvester under hybrid gallo** and band-limited random excitations

    In the practical environment, it is very common for the simultaneous occurrence of base excitation and crosswind. Scavenging the combined energy of vibration and wind with a single energy harvesting structure ...

    Haitao Li, Tianyu Zheng, Weiyang Qin, Ruilan Tian in Applied Mathematics and Mechanics (2024)

  2. No Access

    Article

    QZS isolators with multi-pairs of oblique bars for isolating ultralow frequency vibrations

    Quasi-zero stiffness (QZS) vibration isolators have been intensively studied due to their importance in isolating low-frequency vibration, but isolating the ultralow frequency vibration and supporting variable...

    Feng Zhao, J. C. Ji, Shuqian Cao, Kan Ye, Quantian Luo in Nonlinear Dynamics (2024)

  3. No Access

    Chapter and Conference Paper

    Origami-Inspired Vibration Isolation with Inherent Nonlinear Inerter

    Origami-inspired structures have shown strong nonlinearity on their force-displacement response, which could be used for vibration isolation by appropriate selections of structural parameters. However, the inf...

    Kan Ye, J. C. Ji, Jianchun Li in Advances in Applied Nonlinear Dynamics, Vi… (2024)

  4. Article

    Open Access

    Vibration control of fluid-conveying pipes: a state-of-the-art review

    Fluid-conveying pipes are widely used to transfer bulk fluids from one point to another in many engineering applications. They are subject to various excitations from the conveying fluids, the supporting struc...

    Hu Ding, J. C. Ji in Applied Mathematics and Mechanics (2023)

  5. No Access

    Chapter and Conference Paper

    Dynamic Analysis of a Novel Zero-Stiffness Vibration Isolator by Considering Frictional Force Involved

    This study proposes a novel zero-stiffness vibration isolator and investigates its dynamic responses under micro-oscillation with a friction consideration. The novel vibration isolator is based on the mechanis...

    Kan Ye, J. C. Ji, Ding Hu in Advances in Applied Nonlinear Dynamics, V… (2022)

  6. No Access

    Chapter and Conference Paper

    Elimination of High-Frequency Whistle Noise in a Residential Ducted Air-Conditioning System Using a Dedicated Pipe Muffler Design

    This paper investigates the whistle noise issue of ducted air-conditioning units under high discharge pressure operating conditions. The high-frequency whistle noise source is identified within the pipe system...

    Sam Han, J. C. Ji, Kan Ye in Vibration Engineering for a Sustainable Future (2021)

  7. No Access

    Article

    Internal signal stochastic resonance of a two-component gene regulatory network under Lévy noise

    Noises are ubiquitous in nature and can often induce some curious phenomena. In this paper, we investigate the internal signal stochastic resonance (ISSR) phenomenon of a two-component gene regulatory network ...

    Q. H. Zhu, J. W. Shen, J. C. Ji in Nonlinear Dynamics (2020)

  8. No Access

    Article

    One-to-three resonant Hopf bifurcations of a maglev system

    This paper studies the dynamics of a maglev system around 1:3 resonant Hopf–Hopf bifurcations. When two pairs of purely imaginary roots exist for the corresponding characteristic equation, the maglev system ha...

    Lingling Zhang, J. C. Ji in Nonlinear Dynamics (2018)

  9. No Access

    Article

    Secondary resonances of a quadratic nonlinear oscillator following two-to-one resonant Hopf bifurcations

    Stable bifurcating solutions may appear in an autonomous time-delayed nonlinear oscillator having quadratic nonlinearity after the trivial equilibrium loses its stability via two-to-one resonant Hopf bifurcati...

    J. C. Ji in Nonlinear Dynamics (2014)

  10. No Access

    Article

    Effect of External Excitations on a Nonlinear System with Time Delay

    The trivial equilibrium of a two-degree-of-freedom autonomous system may become unstable via a Hopf bifurcation of multiplicity two and give rise to oscillatory bifurcating solutions, due to presence of a time...

    J. C. Ji, Colin H. Hansen, **nye Li in Nonlinear Dynamics (2005)

  11. No Access

    Article

    Bifurcation Control of a Parametrically Excited Duffing System

    A linear time-delayed feedback control is used to delay the occurrenceof pitchfork bifurcations and to eliminate saddle-node bifurcations,which may arise in the nonlinear response of a parametrically excitedDu...

    J. C. Ji, A. Y. T. Leung in Nonlinear Dynamics (2002)

  12. No Access

    Article

    Local Bifurcation Control of a Forced Single-Degree-of-Freedom Nonlinear System: Saddle-Node Bifurcation

    It is well known that saddle-node bifurcations can occur in the steady-state response of a forced single-degree-of-freedom (SDOF) nonlinear system in the cases of primary and superharmonic resonances. This dis...

    J. C. Ji in Nonlinear Dynamics (2001)