SIMULATION METHOD FOR MEASURING THE IMPACT ENERGY OF RAIL VEHICLES EQUIPPED WITH A SOFT ABSORBER

IF 0.5 Q4 TRANSPORTATION SCIENCE & TECHNOLOGY Transport Problems Pub Date : 2023-09-30 DOI:10.20858/tp.2023.18.3.02

Aleksandra LISOWSKA, Henryk SANECKI, Maciej SZKODA

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Abstract

This paper presents a simulation method for testing the energy absorbed by the absorption systems of rail vehicles equipped with a soft absorber. The method makes it possible to verify the actual behavior of the absorption system during the impact of two vehicles. The first part of this paper describes the structural elements of a railway vehicle performing the function of an energy absorber during an impact according to the EN 15227 standard. A soft absorber, the so-called honeycomb, is analyzed in detail. It is a multicellular structure often used in rail vehicles due to its properties of controlled deformation. The literature review describes the research conducted on this element. The analytical part of this paper describes a general mathematical model of a rail vehicle collision according to Scenario 1, in which the collided vehicles are of the same type, and Scenario 2 for vehicles of different types. A computational impact simulation for the two scenarios has been carried out using the specialist software Mathcad, and the results are presented in graphs. The paper ends with conclusions presenting the application possibilities of the developed tool.

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安装软减震器的轨道车辆冲击能的仿真测量方法

本文提出了一种测试安装软减振器的轨道车辆吸收系统吸收能量的仿真方法。该方法使验证吸收系统在两车碰撞时的实际行为成为可能。本文的第一部分描述了根据en15227标准在碰撞中执行能量吸收功能的轨道车辆的结构元件。详细分析了一种称为蜂窝的软吸收器。由于具有控制变形的特性，它是一种多胞体结构，常用于轨道车辆。文献综述描述了对该元素进行的研究。本文的分析部分根据情景一，碰撞车辆为同一类型，场景二，碰撞车辆为不同类型，描述了轨道车辆碰撞的一般数学模型。使用专业软件Mathcad对这两种情况进行了计算冲击模拟，并以图表形式展示了结果。文章最后总结了该工具的应用前景。

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来源期刊

Transport Problems TRANSPORTATION SCIENCE & TECHNOLOGY-

CiteScore

1.90

自引率

14.30%

发文量

审稿时长

48 weeks

期刊介绍： Journal Transport Problems is a peer-reviewed open-access scientific journal, owned by Silesian University of Technology and has more than 10 years of experience. The editorial staff includes mainly employees of the Faculty of Transport. Editorial Board performs the functions of current work related to the publication of the next issues of the journal. The International Programming Council coordinates the long-term editorial policy the journal. The Council consists of leading scientists of the world, who deal with the problems of transport. This Journal is a source of information and research results in the transportation and communications science: transport research, transport technology, transport economics, transport logistics, transport law.