摘要
采用内置式泵房后,由于轨道型式发生了变化,其实际服役可靠性值得关注。建立了内置式泵房轨道系统的轨道动力分析模型,分析了内置式泵房轨道系统的轨道动力响应特征。在此基础上,以整体道床横向弯矩和道床横向位移作为服役性能的控制指标,选取道床弹性模量、扣件垂向刚度、扣件横向刚度和扣件横向阻尼作为随机参数,使用2^(k)析因实验设计开展了参数敏感性分析;选取整体道床横向弯矩作为目标响应,评价了敏感参数对内置式泵房轨道系统的轨道服役可靠度的影响。
After built-in pump house is adopted,track type has been changed,therefore the service reliability of built-in pump house in practice is worthy of attention.Track dynamic analysis model of built-in pump house track system is established,and the dynamic response characteristics of the system are analyzed.On this basis,the lateral bending moment and lateral displacement of the monolithic track bed are taken as the control indexes of the service performance,and the elastic modulus of the track bed,the vertical stiffness of the fastener,the lateral stiffness of the fastener and the lateral damping of the fastener are selected as random parameters.The sensitivity analysis of parameters is carried out by adopting 2^(k) factor experimental design,and the lateral bending moment of monolithic track bed is selected as the target response to evaluate the influence of sensitive parameters on the service reliability of built-in pump house track system.
作者
傅承诚
罗望
崔信为
时瑾
FU Chengcheng;LUO Wang;CUI Xinwei;SHI Jin(Shaoxing Keqiao Rail Transit Group Co.,Ltd.,312030,Shaoxing,China;不详)
出处
《城市轨道交通研究》
北大核心
2022年第1期102-106,共5页
Urban Mass Transit
基金
绍兴市柯桥区轨道交通集团有限公司科技开发课题项目(201801-SJ-FW-002)。
关键词
轨道交通
轨道
内置式泵房
道床横向弯矩
动力响应
rail transit
track
built-in pump house
lateral bending moment of track bed
dynamic response
