A tri-stable nonlinear energy sink (NES) with negative stiffness and positive piecewise linear stiffness is presented for broad band vibration suppression of small vibrations of host structural system. The negative stiffness of the NES is produced by permanent magnets and the piecewise linear stiffness...
Theoretical and experimental study of a stable state adjustable nonlinear energy sink 2024, Mechanical Systems and Signal Processing Citation Excerpt : Unlike the classic linear absorbers, the NES can achieve vibration reduction over a wide frequency band [8–10]. Moreover, the inherent nonlinearity ...
A track nonlinear energy sink (TNES) has been proven as an effective control strategy. However, most researches focus on numerical or experimental aspects, with relatively little analytical study of intrinsic dynamic characteristics of the TNES. This study aims to investigate the nonlinear behaviors ...
M..Peng Z. K..Mechanism of Optimal Targeted Energy Transfer[J].Journal of Applied Mechanics: Transactions of the ASME,2017,84(1):. [2]Gendelman O.V..Analytic treatment of a system with a vibro-impact nonlinear energy sink[J].Journal of Sound & Vibration,2012,331(21):. [3]Bergman ...
In recent years, nonlinear energy sink (NES) has received widespread attention from scholars as an efficient passive control means. In this paper, the effect of NES on the nonlinear dynamic response of the cable-beam composite structure is investigated. Firstly, a mechanical model of the cable-...
The nonlinear energy sink (NES) is outstanding in vibration control for the well-known character of energy targeted transmitting and resonance automatically capturing. To enhance the practicability, this paper proposes a ground-limited NES. The novel design can be encapsulated in a certain box. Howev...
The nonlinear energy sink (NES) is outstanding in vibration control for the well-known character of energy targeted transmitting and resonance automatically capturing. To enhance the practicability, this paper proposes a ground-limited NES. The novel design can be encapsulated in a certain box. Howev...
We provide numerical evidence of passive and broadband targeted energy transfer from a linear flexible beam under shock excitation to a local essentially nonlinear lightweight attachment that acts, in essence, as nonlinear energy sink—NES. It is shown that the NES absorbs shock energy in a one-...
其中,柱体管道间排列紧密,又容易受到风、浪等环境耦合作用,容易在浮体平台的牵引作用下受迫振动,造成柱体管道间的破坏。为了探究刚性连接的多柱体系统的振动特性,陈东阳教授开展了刚性连接四柱体系统涡激振动特性及基于非线性能量阱(Nonline...
This paper investigates the effect of an attached/coupled nonlinear energy sink (NES1) on energy suppression of a cantilever beam under shock excitation. Grounded and ungrounded configurations of NES are studied and the NES performance is optimized through variation of different parameters. The realizat...