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科技导报
| 研究论文 2014, 32(22): 42-46
侧向风作用下跨座式单轨车辆运行平稳性研究
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赵树恩, 刘淅, 杜子学, 李玉玲
作者信息
重庆交通大学机电与汽车工程学院, 重庆400074
Riding Stability of Urban Straddle-type Monorail Vehicles Under Lateral Wind
Affiliations
出版时间: 2014-08-08
doi: 10.3981/j.issn.1000-7857.2014.22.006
文章导航
针对侧向风作用下跨座式城市单轨车辆的运行平稳性问题,利用多体动力学软件Adams 建立跨座式单轨车辆“车体-轮胎-轨道梁”耦合系统动力学模型,基于空气动力学原理,研究了侧向风风压中心随着车辆运动过程的变化情况,并对不同车速、风速、轨道梁线形下跨座式单轨车辆在侧向风作用时的运行平稳性进行仿真计算和对比分析,结果表明,车速和风速的变化对在侧向风条件下的跨座式单轨车辆横向加速度影响很大,会进一步影响车辆的运行平稳性,且当车速或风速过大时,车辆不满足平稳性指标,会发生失稳现象。
跨座式单轨车辆
/
运行平稳性
/
侧向风
/
仿真
This research focuses its attention on the riding stability of straddle-type monorail vehicles under the lateral wind condition by means of the multi-body dynamics analysis software Adams to set up a "car body-tire-track beam" coupled system model for the straddle-type monorail vehicle. Then, based on the principles of aerodynamics and considering that the wind pressure center changes as a result of the movement of the vehicle, calculation and contrastive analysis of the riding stability of straddle-type monorail vehicle under various car speeds, wind speeds and track shapes are performed through simulation. Finally, the conclusion is arrived at that changes of car speed and wind speed can exert a great influence on the transverse acceleration of straddle-type monorail vehicles affected by lateral wind, and an excessive speed of vehicle or wind may result in imbalance of the vehicle, which can possibly act as a reference for further exploring the crosswise riding stability and safety of straddle-type monorail vehicle under lateral wind.
straddle-type monorail vehicle
/
riding stability
/
lateral wind
/
simulation
赵树恩, 刘淅, 杜子学, 李玉玲.
侧向风作用下跨座式单轨车辆运行平稳性研究.
科技导报,
2014
, 32
(22)
: 42
-46
.
DOI: 10.3981/j.issn.1000-7857.2014.22.006
ZHAO Shuen, LIU Xi, DU Zixue, LI Yuling.
Riding Stability of Urban Straddle-type Monorail Vehicles Under Lateral Wind[J].
Science & Technology Review ,
2014
, 32
(22)
: 42
-46
.
DOI: 10.3981/j.issn.1000-7857.2014.22.006
2014年第32卷第22期
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文章信息
doi: 10.3981/j.issn.1000-7857.2014.22.006
接收时间:2014-04-21
首发时间:2014-08-15
出版时间:2014-08-08
收稿日期:2014-04-21
修回日期:2014-06-27
https://castjournals.cast.org.cn/joweb/kjdb/CN/10.3981/j.issn.1000-7857.2014.22.006
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2种不同金属材料的力学参数
科 Family 属数 Number of genus 种数 Number of species 占总种数比例 Percentage of total species (%) 属 Genus 种数 Number of species 占总种数比例 Percentage of total species (%) 鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78 小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39 多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39 红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87 小菇属 Mycena 11 5.26 光柄菇属 Pluteus 5 2.39 红菇属 Russula 17 8.13 栓菌属 Trametes 5 2.39
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