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接触网的力学模型及运动微分方程 被引量:18

The Dynamic Model and Differential Equations of the Catenary
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摘要 本文取接触线和承力索为基木结构,把吊弦、限制丝器等看作附属结构.在基本结构上取单元体得到了承力索和接触线的运动微分方程,又把附属结构看作具有惯性力和弹性力的荷载,得到了整个接触网的运动微分方程.为研究机车高速运行时的弓网受流打下了基础. in this paper, we take the messenge wire and the contact wire as main elements, and take the droppers, the steady arms and others as attached elements. A free-body diagram corresponding to an element of the messenge wire or the contact wire of length dx is considered, from which the differential equations of the messenge wire and the contact wire are obtained. Then,we obtain the differential equations of the whole catenary by taking the attached elements as loads with inertia forces and elasticity forces. These results lay a foundation for the study of the current feeding when the electric locomotive runs at high speed.
出处 《长沙铁道学院学报》 CSCD 1996年第2期90-93,112,共5页 Journal of Changsha Railway University
关键词 运动微分方程 电气化铁道 接触网 力学模型 high-speed current feeding differential equation vibration
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参考文献2

  • 1[美]克拉夫(R·W·Clough),[美]彭津(J·Penzien) 著,王光远等.结构动力学[M]科学出版社,1981. 被引量:1
  • 2李国豪主编..桥梁结构稳定与振动[M],1965:202.

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