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1. CN109657377 - train equivalent mold shrinkage construction method and a train equivalent mold shrinkage

Office
China
Application Number 201811591809.0
Application Date 25.12.2018
Publication Number 109657377
Publication Date 19.04.2019
Grant Number 109657377
Grant Date 24.12.2019
Publication Kind B
IPC
G06F 17/50
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
FELECTRIC DIGITAL DATA PROCESSING
17Digital computing or data processing equipment or methods, specially adapted for specific functions
50Computer-aided design
CPC
G06F 17/5095
G06F 2217/78
Applicants CENTRAL SOUTH UNIVERSITY
中南大学
Inventors YAO SHUGUANG
姚曙光
YAN KAIBO
闫凯波
LU SISI
陆思思
XU PING
许平
HUANG QI
黄启
Agents 长沙市融智专利事务所(普通合伙) 43114
Title
(EN) train equivalent mold shrinkage construction method and a train equivalent mold shrinkage
(ZH) 一种列车等效缩模构建方法及列车等效缩模
Abstract
(EN)
The invention discloses a train equivalent mold shrinkage construction method and a train equivalent mold shrinkage. The method comprises the steps of acquiring scale factors of the train equivalent mold shrinkage relative to all dynamic parameters of a full-size train; dividing the train into a head train and a middle train according to the deformation energy absorption characteristics in the train collision process, and dividing the head train into a deformation energy absorption area and a non-deformation area; respectively constructing a head car and an intermediate car of train equivalentmold shrinkage based on the scale factor of the dynamic parameters; According to the deformation energy absorption characteristics of the connecting couplers between the adjacent carriages on the full-size train, constructing energy absorption guide pieces between the adjacent carriages on the train equivalent shrinkage mold, and calculating the length of the honeycomb aluminum cylinder based onthe size scale factor; And calculating the sectional area of the energy absorption guide piece according to the structural size of the connecting coupler and the deformation energy absorption characteristic curve. The built head train shrinkage mold can ensure that the train impact force and the train body rigidity are similar, the train collision process is accurately restored, and the reliability is higher.

(ZH)
本发明公开了一种列车等效缩模构建方法及列车等效缩模,该方法包括获取列车等效缩模相比于全尺寸列车的各个动力学参数的比例因子;依据列车碰撞过程中的变形吸能特征将列车分为头车和中间车以及将头车划分为变形吸能区和非变形区;基于动力学参数的比例因子对列车等效缩模的头车、中间车分别进行构建;依据全尺寸列车上相邻车厢间的连接车钩的变形吸能特性构建列车等效缩模上相邻车厢间的吸能导向件,将基于尺寸比例因子计算蜂窝铝圆柱体的长度;依据连接车钩的结构尺寸以及变形吸能特性曲线计算所述吸能导向件的截面面积。本发明构建的头车缩模能保证列车撞击力和车体刚度相似,精确还原列车碰撞过程,可靠度更高。

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