轨道车辆制动性能计算方法研究  

Study on Calculation Method of Braking Performance for Rail Vehicles

作　　者：金宇智 李翔 金哲 蔡田 谷友泉 潘兴河 JIN Yuzhi;LI Xiang;JIN Zhe;CAI Tian;GU Youquan;PAN Xinghe(Locomotive&Car Research Institute,China Academy of Railway Sciences Corporation Limited,Beijing 100081,China;Beijing Zongheng Electro-Mechanical Technology Co.,Ltd.,Beijing 100094,China;Beijing(Nankou)Locomotive and Car Supervision Department,China Railway Beijing Group Co.,Ltd.,Beijing 100860,China)

机构地区：[1]中国铁道科学研究院集团有限公司机车车辆研究所,北京100081 [2]北京纵横机电科技有限公司,北京100094 [3]中国铁路北京局集团公司北京(南口)机车车辆监造项目部,北京100860

出　　处：《铁道机车车辆》2024年第6期16-23,共8页Railway Locomotive & Car

基　　金：中国国家铁路集团有限公司科技研究开发计划(P2021J038);中国铁道科学研究院集团有限公司科研计划(2022YJ218)。

摘　　要：随着列车运行速度等级逐渐提高和各类新型制动方式的发展,传统基于速度分段的制动计算的精度有待进一步优化。提出了分步进行制动计算的方法及时间步长的选取依据,以CRH6A型动车组为对象进行计算,并与平均计算法及实测结果进行了对比分析。结果表明两种计算方法在合适的步长下均可获得理想的计算精度,其中分步计算法对步长更为敏感,而制动指令响应时间内对运行阻力的处理方式是两种计算方法差异的主要来源,若响应时间超过最大制动力时长的20%,则应使用分步计算法以提高计算精度。With the increase of operation speed and the development of novel braking systems,the accuracy of the traditional braking calculation based on mean values needs to be optimized.A step-by-step calculation method is proposed to conduct a case study based on CRH6A high speed train.The calculation results are compared with the mean value method and the experimental results.The results indicate that both methods can obtain the satisfying results with suitable step length where the step-by-step method is more sensitive to the step length.The simplification of the operation resistance within the response time is the main source of the difference between the two methods.If the response time exceeds 20%of the maximum braking force duration,the step-by-step method should be used to improve the calculation accuracy.

关 键 词：制动计算 平均计算法 分步计算法 响应时间 计算步长 

分 类 号：U270.35[机械工程—车辆工程]