This paper proposed a fatigue test load spectrum compilation method for key pantograph
components to study the reduction of the pantograph development cycle and optimization of …

(1. 西南交通大学机械工程学院, 四川成都610031; 2. 西南交通大学牵引动力国家重点实验室,
四川成都610031) 摘要: 建立了车辆结构的刚柔耦合动力学模型, 对比了刚性构架和柔性构架的 …

提出多载荷时间历程的外推方法, 给出车下设备承载结构疲劳试验载荷谱编制方法.
基于载荷时间历程的雨流计数矩阵, 利用二维核密度估计方法(Kernel density estimation, KDE) …

Extrapolation method of multiple load histories is presented, and compilation of fatigue test
load spectrum for underfloor equipment bearing structure is given. The extrapolation method …

The rigid-flexible dynamics model of vehicle structure was established, the vibration
responses of rigid and flexible bogie frames were compared, and the load spectrums of …

Fatigue load spectrum is the most critical part of the durability testing of automotive
components. The multiaxial load spectrums input to the test bench generally need to be …

分析了时域内准静态载荷-应力传递关系, 以载荷间互谱密度的参数作为载荷耦合作用的表征量,
基于多轴频域疲劳基本理论推导了频域内等效应力的表达式; 得到了与多轴加载等效的分立载荷 …

The bogie frame, as one of the most critical load-bearing structures of the Electric Multiple
Unit (EMU), is responsible for bearing and transmitting various loads from the car body …

根据构架在线路运行中的扭曲状态和标准JIS E 4207: 2004《 铁路车辆-转向架-
转向架构架设计通则》 中规定的构架扭转刚度测试方法提出改进的刚度测试方法 …

In this paper, a fatigue strength analysis approach based on Goodman-Smith fatigue limit
diagram (GSFLD) and reliability theory is proposed to solve the problem that the traditional …