Analysis of the Load-Stress Response Characteristics of the Bogie Frame in Intercity Electric Multiple Unit

作     者：Hua Zou Shou-Guang Sun Qiang Li Zun-Song Ren 

作者机构：Engineering Research Center of Structure Reliability and Operation Measurement Technology of Rail Guided Vehicles of Ministry of EducationBeijing Jiaotong University 

出 版 物：《Chinese Journal of Mechanical Engineering》 (中国机械工程学报（英文版）)

年 卷 期：2018年第31卷第2期

页      面：227-237页

核心收录：

学科分类：0817[工学-化学工程与技术] 08[工学] 082304[工学-载运工具运用工程] 0807[工学-动力工程及工程热物理] 080204[工学-车辆工程] 0802[工学-机械工程] 0811[工学-控制科学与工程] 0801[工学-力学（可授工学、理学学位）] 0823[工学-交通运输工程] 

基　　金：Supported by National Natural Science Foundation of China(Grant No.U1134201) National Key Research and Development Program of China(Grant No.2016YFB1200404-08) National Key Research and Development Program of China(Grant No.2016YFB1200505-11) 

主　　题：Bogie frame Load Stress Transitive relation Neural network 

摘      要：Load spectra research for bogie frame requires establishing the load?stress relationship on working condition, which has been omitted by the researchers. With the load?stress of the bogie frame of an intercity Electric Multiple Unit(Hereinafter referred to as EMU) as the research object, an optimization model of the load?stress transfer relationship is established. The load?stress coe cient for EMU bogie frame was calibrated in the laboratory bench and online test was arranged on Dazhou?Chengdu line. Comparison of nonlinear and linear neural networks proves that the linear transitive relation between the load and stress of the bogie frame in the operating process is highly suitable. An optimization model of the load?stress transfer coe cient is obtained. The data calculated with the modified coe cient are closer to the dynamic stress results in the actual operating process than the data calculated with the calibration coe cient. The coe cient of the modified transitive relation is una ected by operating area, empty load, heavy load, or other conditions in the operating process of the intercity EMU. The real loads in actual situations are obtained. The model of online load?stress relationship that is highly suitable for line stress calculation is finally established. The research is helpful for further damage calculation and inferring the time history signal of the load in load spectra research.