Influence of fluctuating transverse wind load on smoothness of high-speed train curve running

TIAN Baochun; ZHANG Jie

doi:10.13890/j.issn.1000-128X.2022.04.101

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Influence of fluctuating transverse wind load on smoothness of high-speed train curve running

Railway Rolling Stock | 更新时间：2024-08-02

- Influence of fluctuating transverse wind load on smoothness of high-speed train curve running
- Electric drive for locomotives Issue 6, Pages: 58-66(2022)
- 作者机构：
  
  1.呼和浩特职业学院铁道系，内蒙古呼和浩特 010050
  2.内蒙古农业大学能源与交通工程学院，内蒙古呼和浩特;010000
- 作者简介：
- 基金信息：
- DOI：10.13890/j.issn.1000-128X.2022.04.101
  CLC： U292.91⁺4
- Published：10 November 2022，
  
  Received：05 March 2021，
  
  Revised：13 April 2021，
- 稿件说明：
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TIAN Baochun, ZHANG Jie. Influence of fluctuating transverse wind load on smoothness of high-speed train curve running. [J]. Electric drive for locomotives (6):58-66(2022)
DOI：

TIAN Baochun, ZHANG Jie. Influence of fluctuating transverse wind load on smoothness of high-speed train curve running. [J]. Electric drive for locomotives (6):58-66(2022) DOI： 10.13890/j.issn.1000-128X.2022.04.101.

摘要

为探究脉动横风载荷对高速列车曲线通过平稳性和安全性影响问题，使用SIMPCAK建立了3 编组列车动力学模型，利用MATLAB实现了脉动横风气动载荷的模拟，并加载到车体质心，计算得到列车在风载荷下的时域/频域响应。参考相关标准设置了线路参数，分析了加载曲线内外横风的影响、编组内车辆振动响应，并分析了不同外轨超高、不同曲线半径、不同风攻角、不同风速、不同车速等参数对车辆曲线安全通过的影响和相应限值。结果表明，脉动风容易激起3 Hz以下车体结构低频振动，“风-车”参数差异导致列车编组内动力响应差异，其中头车对风攻角

在60°~90°时对横风最敏感。曲线外轨欠超高时，车辆横向响应内侧风占主导，而过渡到过超高时横向响应外侧风占主导地位。曲线半径减小、风速及车速增长都会使得车辆安全性迅速变差。在车速200 km/h、风速12 m/s、风向角90°条件下，曲线安全半径为3 800 m；在车速200 km/h、风向角90 °、曲线半径为3 200 m 条件下，最大风速限值为 25 m/s；在风向角90°、曲线半径为3 200 m、风速12 m/s 条件下，最大车速限值为300 km/h。

Abstract

In order to explore the influence of fluctuating cross wind load on the curve passing stability and safety of high-speed train

the three-marshalling train dynamics model was established by using SIMPCAK in this paper. The simulation of pulsating wind aerodynamic load was realized by MATLAB and loaded into the vehicle body centroid. The time / frequency response of the train under wind load was calculated. The line parameters were set with reference to relevant standards

the influence of load curve both inside and outside horizontal wind and the vibration response of vehicles in the marshalling were analyzed. Then

the effects of different superelevation

radius of circular curve

wind attack angle

wind speed and vehicle speed on vehicle safe passage of curve and the corresponding limits were analyzed. The results showed that the pulsating wind was easy to arouse the low frequency vibration of the train structure below 3 Hz. The difference of wind-vehicle parameters leaded to the difference within the train dynamic response in the marshalling

among which the first train T1 was most sensitive to the transverse wind when the wind attack angle α = 60°-90°. In the case of deficient superelevation

the inside wind dominated the lateral response of the vehicle

while in the case of over elevation

the outside wind dominated the lateral response. The decrease of the radius of the circular curve and the increase of the wind speed and the train speed would make the vehicle safety deteriorate rapidly. Under the conditions of speed at 200 km/h

wind speed at 12 m/s and wind direction angle at 90°

the safe radius of the circular curve was 3 800 m. Under the conditions of speed at 200 km/h

wind direction angle at 90° and circular curve at 3 200 m

the maximum wind speed was limited to 25 m/s. Under the conditions of wind angle at 90°

circular curve at 3200 m and wind speed at 12 m/s

the maximum speed was limited to 300 km/h.

关键词

脉动横风高速列车曲线通过性能运行安全性高速铁路仿真动车组

Keywords

fluctuating transverse windhigh-speed traincurve passing performanceoperation safetyhigh-speed railwaysimulationmultiple-unit train

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