Jianen Chen
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View article: Effective Frequency Range and Jump Behavior of Horizontal Quasi-Zero Stiffness Isolator
Effective Frequency Range and Jump Behavior of Horizontal Quasi-Zero Stiffness Isolator Open
The quasi-zero stiffness (QZS) isolator shows excellent characteristics of low-frequency vibration isolation. However, the jump behavior caused by the strong nonlinearity is a primary reason for the failure of QZS isolators. In order to gr…
View article: Study on Crack Identification with Responses Modulated by Nonlinear Energy Sink
Study on Crack Identification with Responses Modulated by Nonlinear Energy Sink Open
Owing to its vibration reduction and indirect signal amplification characteristics, a nonlinear energy sink (NES) is used for crack identification of structures. The equation of a cracked simply supported beam with an NES is derived and th…
View article: Shock-Induced Vibration of Composite Truss Core Sandwich Plates with Distributed Nonlinear Absorbers by Optimal Locations
Shock-Induced Vibration of Composite Truss Core Sandwich Plates with Distributed Nonlinear Absorbers by Optimal Locations Open
In order to solve the problems of limited installation space and strict additional quality, the effects of internal distributed nonlinear energy sinks (NES) considering optimal locations on a composite truss core sandwich plate are investi…
View article: Cross-scale energy transfer of chaotic oscillator chain in stiffness-dominated range
Cross-scale energy transfer of chaotic oscillator chain in stiffness-dominated range Open
The investigations on the dynamics of hierarchical oscillator chains provide basic theories for the fields of acoustic metamaterial and passive guidance of energy flow. In the present study, the characteristics of stiffness-dominated energ…
View article: Shock-Induced Vibration Suppression of Composite Truss Core Sandwich Plates via Distributed Nonlinear Energy Sinks
Shock-Induced Vibration Suppression of Composite Truss Core Sandwich Plates via Distributed Nonlinear Energy Sinks Open
In order to solve the problem of limited installing space and strict additional quality, the effects of distributed nonlinear energy sinks (NES) on a composite truss core sandwich plate are investigated in this paper. Choose five NESs here…
View article: Global Dynamics and Optimal Design of a New Highly Efficient Nonlinear Energy Sink Based on Magnetic-Elastic Impacts with Negative Stiffness
Global Dynamics and Optimal Design of a New Highly Efficient Nonlinear Energy Sink Based on Magnetic-Elastic Impacts with Negative Stiffness Open
A new highly efficient elastic-impact bistable nonlinear energy sink (EI-BNES) based on magnetic-elastic impacts with negative stiffness and bistability is proposed and optimized through global dynamical analysis. The EI-BNES has better ro…
View article: Vibration absorption of parallel-coupled nonlinear energy sink under shock and harmonic excitations
Vibration absorption of parallel-coupled nonlinear energy sink under shock and harmonic excitations Open
Nonlinear energy sink (NES) can passively absorb broadband energy from primary oscillators. Proper multiple NESs connected in parallel exhibit superior performance to single-degree-of-freedom (SDOF) NESs. In this work, a linear coupling sp…
View article: Dynamics of Nonlinear Primary Oscillator with Nonlinear Energy Sink under Harmonic Excitation: Effects of Nonlinear Stiffness
Dynamics of Nonlinear Primary Oscillator with Nonlinear Energy Sink under Harmonic Excitation: Effects of Nonlinear Stiffness Open
The dynamics of a system consisting of a nonlinear primary oscillator, subjected to a harmonic external force, and a nonlinear energy sink (NES) are investigated. The analytical solutions for the steady-state responses are obtained by the …
View article: Free Vibration and Hardening Behavior of Truss Core Sandwich Beam
Free Vibration and Hardening Behavior of Truss Core Sandwich Beam Open
The dynamic characteristics of simply supported pyramidal truss core sandwich beam are investigated. The nonlinear governing equation of motion for the beam is obtained by using a Zig-Zag theory. The averaged equations of the beam with pri…