基于EN 14363:2016(E)的地铁车辆扭曲安全性研究
郭振通周鲁宁薛萍
Research on Metro Vehicle Twist Safety Based on Standard EN 14363:2016(E)
GUO ZhentongZHOU LuningXUE Ping
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作者信息:南京中车浦镇城轨车辆责任有限公司，210031，南京
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Affiliation:CRRC Nanjing Puzhen Co., Ltd., 210031, Nanjing, China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.2023.01.016
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中图分类号/CLCN:U270.1+4
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栏目/Col:研究报告
摘要:
基于EN 14363:2016(E)中规定的扭曲安全性试验要求，详细阐述了实验室内无扭曲试验台和有扭曲试验台情况下进行扭曲试验的方法，并建立了扭曲试验台仿真模型。以某出口地铁车辆为例，分析了车辆在空气弹簧有气和失气状态下的轮重变化趋势。研究结果表明，在空气弹簧有气和无气状态下，车辆轮轨垂向力最小值分别为25.53 kN和19.65 kN，其相应的轮重减载率分别为0.46和0.59，小于0.60的安全限值，均符合标准要求。此外，空气弹簧失气状态下的轮轨垂向力增载和减载量明显大于其有气状态，二系悬挂参数对车辆的抗扭曲性能影响明显。
Abstracts:
Based on the twist safety test requirements specified in EN 14363:2016(E), the test methods under conditions whether twist test rig is available or not in the laboratory are elaborated, and the simulation model of twist test rig is established. Taking an export metro vehicle as example, the vehicle wheel weight change tendency under the conditions of air spring inflated and deflated is analyzed. Research results show that the minimum wheel/rail vertical forces of air spring inflated and deflated are 25.53 kN and 19.65 kN respectively, and the corresponding wheel weight unloading ratio is 0.46 and 0.59 respectively, meeting the standard requirements below 0.60 safety limit. In addition, the increase and decrease of wheel-rail vertical force under the condition of air spring deflated is significantly greater than that of the air spring inflated, indicating that the impact of secondary suspension parameter on vehicle anti-twist performance is obvious.
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