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空气动力制动制动风翼纵向位置制动力规律
引用本文:田春,吴萌岭,费巍巍,黄启超.空气动力制动制动风翼纵向位置制动力规律[J].同济大学学报(自然科学版),2011,39(5):705-709.
作者姓名:田春  吴萌岭  费巍巍  黄启超
作者单位:1. 同济大学铁道与城市轨道交通研究院,上海,201804
2. 中国北东集团大同电力机车有限责任公司,山西大同,037038
基金项目:国家科技支撑计划子课题(2009BAG12A05-13);同济大学青年优秀人才培养行动计划资助
摘    要:分析了全列车均装制动风翼时,不同纵向位置处制动风翼周围流场特性,数值计算得到迎风面第1块制动风翼产生的制动力最大,其余制动风翼产生的制动力逐渐减小,且减小幅度逐渐减慢的制动力规律.结合某高速列车车型,考虑减少受电弓影响,分析受电弓车辆不装制动风翼时,纵向位置各制动风翼产生制动力规律,并同每辆车均安装制动风翼时制动力规律进行对比.最后,对空气动力制动产生制动力效果进行了分析.

关 键 词:高速列车  空气动力制动  制动风翼  制动力规律
收稿时间:1/5/2010 5:27:19 PM
修稿时间:3/21/2011 5:31:05 PM

Rule of Aerodynamics Braking Force in Longitudinal Different Position of High-speed Train
TIAN Chun,WU Mengling,FEI Weiwei and HUANG Qichao.Rule of Aerodynamics Braking Force in Longitudinal Different Position of High-speed Train[J].Journal of Tongji University(Natural Science),2011,39(5):705-709.
Authors:TIAN Chun  WU Mengling  FEI Weiwei and HUANG Qichao
Institution:Institute of Railway and Urban Rail Transit,Tongji University,Institute of Railway and Urban Rail Transit,Tongji University,Institute of Railway and Urban Rail Transit,Tongji University
Abstract:Aerodynamics brake is one of non-adherence brake models. Firstly, the braking force generated by each of brake panels is computed when all carriages of the train are equipped with aerodynamic brake. Physical principle of the braking force generated by brake panels in longitudinal different positions is found out through analyzing change of the flow around the train. The kinetic rule is acquired that the first windward brake panel produces the largest drag, and the drag is reduced one by one in the windward. Then, principle is also studied when one or several vehicles are not equipped with brake panels. Braking force generated by the brake panel behind the removed brake panel increases. The cause is found by analyzing the variety of the wake field of the brake panel. At last, considering certain true model of high speed train and reducing the interference of the pantograph, the vehicle which is equipped with pantograph is not equipped with aerodynamic brake. In this situation, the braking force is calculated. The brake effect is also discussed.
Keywords:high speed train  aerodynamics brake  brake panels  rule of braking force
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