Method for designing train body anti-collision performance of long-numbered motor train unit with speed per hour of 350 kilometers

Abstract

The invention provides a method for designing the train body anti-collision performance of a long-numbered motor train unit with the speed per hour of 350 kilometers and relates to the technical fieldmotor train unit train body anti-collision performance design. The method includes three parts of head vehicle energy absorption design, middle vehicle energy absorption design and energy absorptiondesign of each collision interface. According to the method, energy absorption elements are adopted to finish the energy dissipation process step by step in a controllable mode, the requirement of static strength of a train body, the available space of a head vehicle, the influence of the minimum compression amount of air dampers of middle vehicles on the energy absorption elements and the designed energy absorption amount of each the collision interface are fully considered, and the EN15227 standard requirement is met after one-dimensional simulated analysis validation. The energy absorptionamount distribution scheme of the method is firstly researched and developed for sixteen grouped long-numbered motor trains, the energy absorption amount of each the collision interface is distributedreasonably, and reference is provided for research and development of the anti-collision performance of train bodies of other long-numbered motor trains.

Description

technical field [0001] The invention relates to the technical field of crashworthy performance design of an EMU car body, in particular to a design method for the crashworthy performance of a 350-kilometer-per-hour long-braided EMU car body. Background technique [0002] With the successful research and development, trial production, test, operation assessment and other stages of testing of the 350 km / h short (8-car formation) standard EMU, mass production has now begun. According to market demand, the research and development of standard EMUs with a speed of 350 kilometers per hour (that is, 16 formations) has been put on the agenda, and the crashworthiness of the car body is in accordance with the EN15227 standard, because there is currently no crashworthiness scheme for long-set EMUs at home and abroad. It can be used for reference, so it is necessary to develop a new EMU car body crashworthiness scheme. [0003] The train changes from short to long, curb weight changes ...

AI Technical Summary

Problems solved by technology

According to market demand, the research and development of standard EMUs with a speed of 350 kilometers per hour (that is, 16 formations) has been put on the agenda, and the crashworthiness of the car body is in accordance with the EN15227 standard, because there is currently no crashworthiness program for long-set EMUs at home and abroad. It can be used for reference, so it is necessary to develop a new EMU car body crashworthiness scheme

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