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A fast simulation approach to assess draft gear loads for heavy haul trains during braking
Mechanics Based Design of Structures and Machines ( IF 3.9 ) Pub Date : 2021-02-01 , DOI: 10.1080/15397734.2021.1875233
Jony J. Eckert 1 , Ícaro P. Teodoro 1 , Luis H. Teixeira 1 , Thiago S. Martins 2 , Paulo R. G. Kurka 1 , Auteliano A. Santos 1
Affiliation  

Abstract

Train traction and brake dynamics simulations can be used to improve the safety and efficiency of heavy haul transportation. Virtual models can be used to analyze many operational conditions that are expensive or inviable to be measured due to costs and security risks. This paper presents a low computational cost simulation model that encompasses the longitudinal dynamics equations and the pneumatic brake system behavior. The model is used to evaluate the effects of the locomotive traction/dynamic-brake and of the pneumatic brake delays in the draft gear forces. A real-world scenario was analyzed, in which a standard train control procedure was applied for 168 ore freight cars propelled by two locomotives. For this analysis, the model was able to perform up to 8 simultaneous parallel simulations with a processing time of 607 s to conclude a route of 2884 s, which is very suitable for this kind of investigation.



中文翻译:

一种评估重载列车制动期间牵引齿轮载荷的快速仿真方法

摘要

列车牵引力和制动动力学仿真可用于提高重载运输的安全性和效率。虚拟模型可用于分析许多由于成本和安全风险而昂贵或无法测量的操作条件。本文提出了一个低计算成本的仿真模型,其中包含纵向动力学方程和气动制动系统行为。该模型用于评估机车牵引/动态制动和气动制动延迟对牵引力的影响。分析了一个真实场景,其中对由两台机车驱动的 168 辆矿石货车应用了标准列车控制程序。对于这个分析,

更新日期:2021-02-01
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