典型文献
Performance improvement of the stochastic-resonance-based tri-stable energy harvester under random rotational vibration
文献摘要：
In this paper,the stochastic-resonance-based tri-stable energy harvester(TEH)is proposed to enhance harvesting performance under random rotational vibration.An electromechanical coupled system inter-faced with a standard rectifier circuit driven by colored noise is considered.The stationary probability density function(SPDF)of the harvester is obtained by the improved stochastic averaging.Then,with the adiabatic approximation theory,the analytical expression of signal-to-noise ratio(SNR)for the TEH is deduced to characterize stochastic resonance(SR).To enhance direct current(DC)power delivery from a rotational TEH,the influences of system parameters on SR is discussed.The obtained results suggest that there are damping-induced resonance and noise-intensity-induced SR in the tri-stable system.The TEH has higher harvesting performance under the optimal SR.That is,the optimal parameter combinations can induce optimal SR and maximize harvesting performance.Thus,the stochastic-resonance-based TEH can be optimized to enhance energy harvesting through choosing the optimal parameter.
文献关键词：
中图分类号：
作者姓名：
Tingting Zhang;Yanfei Jin;Yanxia Zhang
作者机构：
Department of Mechanics,Beijing Institute of Technology,Beijing 100081,China;Department of Mathematics,Xi'an University of Science and Technology,Xi'an,Shaanxi 710054,China
文献出处：
引用格式：
[1]Tingting Zhang;Yanfei Jin;Yanxia Zhang-.Performance improvement of the stochastic-resonance-based tri-stable energy harvester under random rotational vibration)[J].力学快报（英文）,2022(05):326-331
A类：
TEH,SPDF
B类：
Performance,improvement,stochastic,resonance,tri,stable,energy,harvester,under,random,rotational,vibration,In,this,paper,proposed,enhance,harvesting,performance,An,electromechanical,coupled,system,inter,faced,standard,rectifier,circuit,driven,by,colored,noise,considered,stationary,probability,density,function,obtained,improved,averaging,Then,adiabatic,approximation,theory,analytical,expression,signal,SNR,deduced,characterize,SR,To,direct,current,DC,power,delivery,from,influences,parameters,discussed,results,suggest,that,there,are,damping,induced,intensity,higher,optimal,That,combinations,can,maximize,Thus,be,optimized,through,choosing
AB值：
0.491997
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