Simulation Study on Vibration Absorption Efficiency of Parallel Nonlinear Energy Sinks

Authors

Jian’en Chen, Tianjin University of Technology, Tianjin Key Laboratory of the Design and Intelligent Control of the Advanced Mechatronical System, Tianjin 300384, China;
He wei, Tianjin University of Technology, Tianjin Key Laboratory of the Design and Intelligent Control of the Advanced Mechatronical System, Tianjin 300384, China;
Weimin Ge, Tianjin University of Technology, Tianjin Key Laboratory of the Design and Intelligent Control of the Advanced Mechatronical System, Tianjin 300384, China;
Liu Jun, Tianjin University of Technology, Tianjin Key Laboratory of the Design and Intelligent Control of the Advanced Mechatronical System, Tianjin 300384, China;
Zhong Rui, Tianjin University of Technology, Tianjin Key Laboratory of the Design and Intelligent Control of the Advanced Mechatronical System, Tianjin 300384, China;

Abstract

Abstract: Parallel nonlinear energy sinks are used to suppress the vibration of the primary structure. The vibration absorption efficiencies of the single and parallel NESs are comparatively investigated. The dynamic equation under harmonic excitation is derived and the dynamic responses are analyzed by using numerical method. Through studying the influences of the installation locations and parameters of the single and parallel NESs respectively, it is found that, under normal temperature, the vibration absorption efficiency of the parallel NESs is better than that of the single NES which having the equal mass with the former absorber. Considering that the resonance frequency of the primary structure varies along with temperature, the stiffnesses of the single and parallel NESs are optimized under different temperatures. The results indicate that the parallel NESs always has the higher vibration absorption efficiency than that of the single NES, and the advantage of the parallel NESs is more obvious when the primary structure is under the higher temperature.

Recommended Citation

Chen, Jian’en; wei, He; Ge, Weimin; Jun, Liu; and Rui, Zhong (2019) "Simulation Study on Vibration Absorption Efficiency of Parallel Nonlinear Energy Sinks," Journal of System Simulation: Vol. 30: Iss. 9, Article 23.
DOI: 10.16182/j.issn1004731x.joss.201809023
Available at: https://dc-china-simulation.researchcommons.org/journal/vol30/iss9/23

First Page

3411

DOI Link

https://doi.org/10.16182/j.issn1004731x.joss.201809023

Last Page

3419

CLC

O322;O327

Recommended Citation

Chen Jian’en, He wei, Ge Weimin, Liu Jun, Zhong Rui. Simulation Study on Vibration Absorption Efficiency of Parallel Nonlinear Energy Sinks[J]. Journal of System Simulation, 2018, 30(9): 3411-3419.

DOI

10.16182/j.issn1004731x.joss.201809023