The Effect of High-Frequency Parametric Excitation on a Stochastically Driven Pantograph-Catenary System

CORC > 厦门大学 > 建筑土木－已发表论文

	The Effect of High-Frequency Parametric Excitation on a Stochastically Driven Pantograph-Catenary System
	Huan, R. H. ; Zhu, W. Q. ; Ma, F. ; Liu, Z. H. ; Liu ZH(刘中华)
刊名	http://dx.doi.org/10.1155/2014/792673
	2014
关键词	STRONGLY NONLINEAR OSCILLATORS FAST HARMONIC EXCITATION AVERAGING METHOD DYNAMICS
英文摘要	Natural Science Foundation of China [10932009, 11372271]; 973 Program [2011CB711105]; National Key Technology Support Program [2009BAG12A01]; Natural Science Foundation of Zhejiang Province [LY12A02004]; In high-speed electric trains, a pantograph is mounted on the roof of the train to collect power through contact with an overhead catenary wire. The effect of fast harmonic and parametric excitation on a stochastically driven pantograph-catenary system is studied in this paper. A single-degree-of-freedom model of the pantograph-catenary system is adopted, wherein the stiffness of the nonlinear spring has a time-varying component characterized by both low and high frequencies. Using perturbation and harmonic averaging, a Fokker-Planck-Kolmogorov equation governing the stationary response of the pantograph-catenary system is set up. Based on the transition probability density of the stationary response, it is found that even small high-frequency parametric excitation has an appreciable effect on the system response. Among other things, it shifts the resonant frequency and often changes the response characteristics markedly.
语种	英语
出版者	HINDAWI PUBLISHING CORPORATION
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/90025]
专题	建筑土木－已发表论文
推荐引用方式 GB/T 7714	Huan, R. H.,Zhu, W. Q.,Ma, F.,et al. The Effect of High-Frequency Parametric Excitation on a Stochastically Driven Pantograph-Catenary System[J]. http://dx.doi.org/10.1155/2014/792673,2014.
APA	Huan, R. H.,Zhu, W. Q.,Ma, F.,Liu, Z. H.,&刘中华.(2014).The Effect of High-Frequency Parametric Excitation on a Stochastically Driven Pantograph-Catenary System.http://dx.doi.org/10.1155/2014/792673.
MLA	Huan, R. H.,et al."The Effect of High-Frequency Parametric Excitation on a Stochastically Driven Pantograph-Catenary System".http://dx.doi.org/10.1155/2014/792673 (2014).