Program for catenary–pantograph analysis,PrOSA statement of methods and validation according EN 50318

DB Systemtechnik is a high-performing, customer-driven service provider that, as well as authoritatively serving the Deutsche Bahn Group by dint of its specialist knowledge is also increasingly active on the global railway market. Development and testing of pantograph models and catenary systems have been part of the company's essential activity fields from the beginning. Therefore, an efficient and high-performing simulation tool is indispensable. That is why DB Systemtechnik spent high efforts to develop the program PrOSA in cooperation with the Heinz–Nixdorf–Institut (HNI) of the university Paderborn to simulate the interaction of pantograph and catenary. This article gives an overview of the most relevant properties of PrOSA. Furthermore, it is described how the benchmark requirements were implemented and processed.     

受电弓等效模型参数识别及动态性能测试

为了得到合理的受电弓等效模型和参数,将受电弓结构等效为2质量块和3质量块模型,通过实验方法,对其质量、刚度和阻尼进行识别,得到了不同等效模型的力学参数.基于测得的等效参数建立受电弓数学模型,进行弓网动力学仿真计算,并将计算得到的接触力结果与利用弓网混合模拟试验台测得的实验数据进行对比.结果表明:对于2质量块和3质量块模型,最大和最小接触力的最大偏差分别为36.95、20.84 N和23.97、12.02 N,该测试方法可以用于受电弓等效模型参数的辨识.     

高速铁路弓网电弧试验系统

高速动车组通过弓网电接触获取电能。随着动车组运行速度的提高,受轨道不平顺、接触网波动以及受电弓弓头振动等因素的影响,弓网电接触状态恶化,使得弓网电弧频繁发生,弓网电弧对接触网导线、受电弓滑板侵蚀严重,影响受流质量,制约动车组速度进一步提升,因此有必要对弓网电弧进行系统研究。本文分析弓网滑动受流过程,研制一套弓网电弧试验系统。该系统能够模拟弓网柔性平直接触、滑板"Z"字形运动及垂向沉浮运动等弓网运动状态。并利用该系统对弓网接触电阻和电弧电气参数、形貌特征进行试验研究。     

降低受电弓噪声

为降低新干线的噪声,必须降低对总噪声贡献极大的受电弓噪声.开发了2种低噪声受电弓,这些受电弓的降噪性能已通过风洞试验得到了证实.通过增强受电弓隔声板声音衰减效果和1列车只用1台受电弓,可进一步降低噪声.