| 潮湿工况影响高速动车组制动摩擦性能试验研究 |
| |
| 引用本文： | 陈澍军,;王东星,;秦佳颖,;刘中华,;陈磊,;李继山.潮湿工况影响高速动车组制动摩擦性能试验研究[J].铁道机车车辆,2014(4):14-19. |
| |
| 作者姓名： | 陈澍军 ;王东星 ;秦佳颖 ;刘中华 ;陈磊 ;李继山 |
| |
| 作者单位： | [1]中国北车集团唐山轨道客车有限责任公司,河北唐山063035; [2]中国铁道科学研究院机车车辆研究所,北京100081 |
| |
| 基金项目： | 铁道部科技研究开发计划（2012J003-C）;唐车公司研究开发项目（2013TCY022） |
| |
| 摘 要： | 高速动车组制动摩擦副的摩擦因数在雨天或湿润的环境下存在衰退的问题,直接影响到轨道车辆的运行安全。随着我国广泛开行速度超过300 km/h的动车组,潮湿工况下制动盘的性能研究越来越受到人们的重视。现首先采用1:1制动动力试验台对高速动车组制动盘潮湿工况下的摩擦性能进行了测试研究,比较了干燥和湿润两类工况下制动盘摩擦性能的异同。潮湿工况对制动盘的摩擦性能的影响较为复杂:潮湿工况下平均摩擦系数存在着明显的下降且波动更加明显;制动压力对于平均摩擦系数的影响有限,但在较高制动初速度和潮湿工况下,较低的制动压力却可以有较高的平均摩擦系数。最后分析了潮湿工况的各种影响因素,并提出了潮湿工况下制动系统的控制策略。
|
| 关 键 词： | 制动盘 平均摩擦系数 潮湿工况 摩擦性能 |
Test Study on Wet Conditions Affecting Frictional Performance of Brake Disc for High Speed EMU |
| |
| Institution: | CHEN Shujun, WANG Dongxing ,QIN Jiaying, LIU Zhonghua ,CHEN Lei, LI Jishan (1 CNR Tangshan Railway Vehicle Co. , Ltd. , Tangshan 063035 Hebei, China; 2 Locomotive ＆ Car Research Institute, China Academy of Railway Science, Beijing 100081, China) |
| |
| Abstract: | The reduction in the friction coefficient for frictional brake disc of high speed EMU applications in a rainy and humidly environment is considered as a serious problem as it affects the safety of the railway vehicle. However, relevant research should be more and more attention through there is a lot of high speed EMU which speed over 300 km/h. The change of friction properties under different work conditions was tested through dynamometer tester, and the similarities and differences between wet and dry friction mode were companied. It is shown that water has a complex effect on the properties of friction materials, as a kind of cooling medium and lubricant. The causes of friction performance change at different conditions and friction layer function and the braking system control strategy were also presented. |
| |
| Keywords: | brake disc friction coefficient wet condition frictional performance |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
