| 基于动力学分析的160km/h级市域快线最小缓和曲线长度研究 |
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| 引用本文： | 王艺飞,易思蓉.基于动力学分析的160km/h级市域快线最小缓和曲线长度研究[J].铁道标准设计通讯,2019(3). |
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| 作者姓名： | 王艺飞 易思蓉 |
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| 作者单位： | 西南交通大学土木工程学院;高速铁路线路工程教育部重点实验室 |
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| 摘 要： | 缓和曲线长度是线路主要技术标准之一,是影响列车安全平稳运行的重要因素。为探明160 km/h级市域快线中,缓和曲线参数对行车安全平稳性的影响规律,在车-线动力学的基础上,采用SIMPACK软件建立理想轨道模型及CRH6车辆模型。通过动力学分析方法,证明横向舒适度是确定城轨线路超高时变率、欠超高时变率的控制因素;建立车-线动力学性能与缓和曲线参数间的关系模型;基于所建立的关系模型,确定超高时变率和欠超高时变率允许值,从而给出满足安全性和舒适度标准的最小缓和曲线长度建议值。
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| 关 键 词： | 市域铁路 车-线动力学性能 缓和曲线长度 技术标准 |
Study on the Minimum Transition Curve Length of 160 km/h Urban Rapid Rail Based on Dynamic Analysis |
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| Institution: | ,School of Civil Engineering,Southwest Jiaotong University,MOE Key Laboratory of High-speed Railway Engineering |
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| Abstract: | Transition curve length is one of the main technical standards of the rail line and an important factor affecting the safe and smooth running of the train.In order to find out the effect of the parameters of the transition curve on the safe and smooth running of the 160km/h urban rapid rail,this paper establishes the ideal track structure model and CRH6 vehicle model using SIMPACK software based on the vehicle-line dynamics.Through the dynamic analysis method,it is proved that the lateral comfort degree is the control factor to determine superelevation time-variable rate and inadequate superelevation time-variable rate of the urban rail lines.The relationship model between vehicle-line dynamic performance and transition curve parameters is established.Based on the model,the allowable values of superelevation time-variable rate and inadequate superelevation time-variable rate are determined.This paper also gives the recommended value of minimum transition curve length that meets safety and comfort standards. |
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| Keywords: | Urban rapid rail transit Train-line dynamic characteristics Transition curve length Technical standards |
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