摘要
有机电车嵌入式轨道主要通过承轨槽内的填充材料固定钢轨并提供连续支撑,其承轨槽内结构复杂,刚度计算没有具体的解析表达式。为此,通过有限元方法分析了影响钢轨竖向支撑刚度的因素和范围,同时建立了有轨电车-嵌入式轨道耦合动力学模型,得到了钢轨竖向支撑刚度对嵌入式轨道动态特性的影响曲线。此外,综合考虑承轨槽填充材料对钢轨和轨道板的动力学特性影响,给出了钢轨竖向支撑刚度的合理取值范围。
Since the embedded tracks use filling materials in rail groove to fix the rail and provide continuous support,the structure of rail groove is very complicated,the stiffness of which needs specific analytical expressions. Through finite element method,the factors affecting the vertical supporting stiffness of the rail stiffness and the affecting ranges are analyzed,a modern tram-embedded track coupling dynamics model is established,the influencing curve of the vertical supporting stiffness on the dynamic characteristics of rail and slab are obtained. With a comprehensive consideration of the influence casted by filling materials in rail supporting groove on the dynamic characteristics of embedded track,the reasonable range for rail supporting vertical stiffness value is provided.
作者
何远鹏
罗信伟
焦洪林
杨刚
韩健
赵悦
肖新标
HE Yuanpeng;LUO Xinwei;JIAO Honglin;YANG Gang;HAN Jian;ZHAO Yue;XIAO Xinbiao(State Key Laboratory of Traction Power,Southwest Jiaotong University,610031,Chengdu,China)
出处
《城市轨道交通研究》
北大核心
2018年第8期6-11,共6页
Urban Mass Transit
基金
国家自然科学基金项目(U1434201
51475390)
国家科技支撑计划项目(2015BAG13B01-03)
国家重点研究安全计划项目(2017XF131201103-08
2016XFE0205200)
关键词
嵌入式轨道
承轨槽填充材料
车辆-轨道耦合动力学
embedded track
filling material in rail supporting groove
vehicle-track coupling dynamics
