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中文摘要：
在以往的弓网研究中,常采用受电弓质量块模型,一般都未考虑受电弓的非线性特性。为此首先重新推导了受电弓非线性框架模型,然后研究了受电弓工作高度对归算参数的影响。最后考虑受电弓动态归算参数的影响修正了弓网耦合动力学方程,并采用龙格库塔法对其进行求解,研究受电弓非线性对弓网动态受流特性的影响。结果表明：归算质量随工作高度的变化不大,归算刚度随受电弓工作高度的变化有较大的振荡;考虑受电弓非线性因素使接触压力变化更加剧烈,列车运行速度越高,受电弓非线性特性对接触压力的影响越大,在研究高速弓网关系时,考虑受电弓非线性因素是很有必要的,可为精确研究高速弓网关系提供借鉴。
英文摘要：
Existing ternary pantograph model did not consider the nonlinear characteristics of the pantograph. In this paper, a nonlinear framework model of the pantograph is derived. The influences of the imputed parameters with the change of working heights are analyzed. And the catenary - pantograph coupling dynamic equation is corrected by considering the imputed parameters. Rungc - Kutta method is selected to solve the equation. Then the dynamic cur- rent - carrying of pantograph - catenary affected by the nonlinear characteristics of pantograph is studied. The results demonstrate that the change of working heights has little effect on the imputed quality, the imputed stiffness has a great change in different working heights, the variation of contact pressure is more severe by considering the nonlinear characteristics of the pantograph, and the effect is more pronounced at high speed.
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