摘要
动车组铝合金车体结构整体刚度和部件刚度决定着其强度、稳定性、振动品质以及疲劳寿命.结合车体结构和承载特点以及铝合金焊接的特殊性,分析动车组铝合金车体各种典型断面的缺口对其抗弯刚度的影响,识别外载荷作用下车体部件的传力路径,以及研究位于传力路径上部件各方向的刚度不协调区域.以结构刚度协调设计为出发点,总结铝合金车体主结构开口和端门结构以及型材焊接位置的设计原则,为动车组铝合金车体详细设计提供理论依据.
Strength, stability, vibration quality and fatigue life of EMU aluminum alloy car - body are determined by its overall structure stiffness and component stiffness. Considering car-body structure and loading characteristics, as well as aluminum alloy welding characteristics, influence of a car-body typical sections with gap on its bending stiffness is analyzed, load-transferee! path of the body under external loading is identified, and stiffness uncoordinated parts on the path is studied. This study provides a theoretical basis for detailed design of EMU aluminum alloy car-body, and the design principles are summarized for aluminum alloy car body opening locations of main structure and end wall structure style as well as profile welding position, using structural stiffness coordinated design.
出处
《大连交通大学学报》
CAS
2016年第5期8-12,共5页
Journal of Dalian Jiaotong University
基金
中国铁路总公司科学研究开发计划资助项目(2014J004-N)
关键词
动车组
铝合金车体
刚度协调
设计原则
EMU
aluminum alloy car-body
stiffness coordination
design principle
作者简介
谢素明（1965-）,女,教授,博士,主要从事车辆工程CAE关键技术研究E-mail：sumingxie@163.com.
