[1]徐传来,米彩盈.轮对结构弹性对高速动车曲线通过性能的影响[J].机车电传动,2013,(06):1-5.
 XU Chuan-lai,MI Cai-ying.Influence of Wheelset Structural Flexibility on High-speedEMUs Curve-passing Performance[J].Electric Drive for Locomotives,2013,(06):1-5.
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轮对结构弹性对高速动车曲线通过性能的影响()
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机车电传动[ISSN:1000-128X/CN:43-1125/U]

卷:
期数:
2013年06期
页码:
1-5
栏目:
研究开发
出版日期:
2013-11-10

文章信息/Info

Title:
Influence of Wheelset Structural Flexibility on High-speedEMUs Curve-passing Performance
文章编号:
1000-128X(2013)06-0001-05
作者:
徐传来米彩盈
西南交通大学 机械工程学院
Author(s):
XU Chuan-lai MI Cai-ying
(School of Mechanical Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, China)
关键词:
动车组曲线通过性能轮对结构弹性特征频率轮轴横向力脱轨系数
Keywords:
EMUs curve-passing performance wheelset structural flexibility eigen frequency lateral wheelset force derailmentcoefficient
分类号:
U260.331+.1,U266.2
文献标志码:
A
摘要:
为了研究轮对扭转、弯曲和伞形特征模态对车辆曲线通过性能的影响,将轮对分别视为刚性体和弹性体,建立了车辆—轨道系统动力学模型。根据UIC518,采用轮轨垂向力、轮轴横向力、脱轨系数和轮重减载率评定车辆曲线通过性能。研究结果表明:轮对一阶弯曲模态对车辆曲线通过性能的影响最大,轮对模态特征频率降低使车辆曲线通过性能指标值增大。将轮对考虑为弹性体,轮对一阶扭转模态、一阶对称和反对称弯曲模态的特征频率分别为46 Hz、62 Hz和128 Hz时,导向轮对的轮轨垂向力、轮轴横向力、脱轨系数和轮重减载率与刚性轮对模型的结果的比值为1.010、1.167、1.241和1.033。轮对结构弹性对轮轴横向力和脱轨系数的影响较大。
Abstract:
In order to study the influence of the torsional mode, bending mode and umbrella mode of the wheelsets on the vehicle curvepassingperformance, the vehicle-track system dynamics models were established, in which, the wheelsets structures were considered as rigidbody and flexible body respectively. The curve-passing performance of the vehicle was assessed by the vertical wheel rail force, lateralwheelset force, derailment coefficient and the dynamic wheel load reduction rate according to UIC518. The results showed: The 1st bendingeigen modes had the largest effect on the vehicle curve-passing performance, and indicators of the curving performance increased with thedecreasing eigen frequencies of the wheelset eigen modes. The ratios of the vertical wheel rail force, lateral wheelset force, derailmentcoefficient and the dynamic wheel load reduction rate of the flexible wheelset model to the rigid wheelset model were 1.010, 1.167, 1.241 and1.033 respectively when the eigen frequency of the 1st torsion eigen mode, 1st symmetric and antisymmetric bending eigen modes were 46 Hz,62 Hz and 128 Hz. The wheelset structural flexibility distinctly influenced the lateral wheelset force and the derailment coefficient.

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备注/Memo

备注/Memo:
作者简介:徐传来(1984-),男,博士研究生,主要研究领域为机车车辆设计及理论。
更新日期/Last Update: 2013-11-10