摘要
根据气动力学的原理,以德国和法国有关动车组气密性评价指标为例,介绍了评价车辆气密性的时间常数法和等效泄漏孔面积方法的物理模型及数学模型。所建立的分析程序,分别与德国和法国动车组气密值的试验数据进行了验证。最后简述了对国内建立有关动车组气密性指标的看法。
Based on aerodynamics theories, this paper introduced two different methods for estimation of pressure tighmess of EMUs： time constant and equivalent leakage area. Their physical and mathematical models are introduced by taking target adopted by Germany and France as examples. The proposed algorithm by present study is validated by comparing simulated data with experimental data of EMUs in Germany and France. Finally, the paper put forwand some useful advices to establish guide line of EMUs＇tightness of our country.
出处
《铁道机车车辆》
北大核心
2009年第2期31-35,共5页
Railway Locomotive & Car
关键词
列车气密性
时间常数
等效泄漏孔
air tightness
time constant
equivalent leakage area
