IMECH-IR  > 流固耦合系统力学重点实验室
Hunting Stability of High-Speed Railway Vehicles Under Steady Aerodynamic Loads
Zeng XH(曾晓辉); Lai J(赖姜); Wu H(吴晗)
2018-07-01
发表期刊INTERNATIONAL JOURNAL OF STRUCTURAL STABILITY AND DYNAMICS
卷号18期号:7页码:1850093
ISSN0219-4554
摘要With the rising speed of high-speed trains, the aerodynamic loads become more significant and their influences on the hunting stability of railway vehicles deserve to be considered. Such an effect cannot be properly considered by the conventional model of hunting stability analysis. To this end, the linear hunting stability of high-speed railway vehicles running on tangent tracks is studied. A model considering the steady aerodynamic loads due to the joint action of the airflow facing the moving train and the crosswind, is proposed for the hunting stability analysis of a railway vehicle with 17 degrees of freedom (DOF). The key factors considered include: variations of the wheel-rail normal forces, creep coefficients, gravitational stiffness and angular stiffness due to the actions of the aerodynamic load, which affects the characteristics of hunting stability. Using the computer program developed, numerical calculations were carried out for studying the behavior of the linear hunting stability of vehicles under steady aerodynamic loads. The results show that the aerodynamic loads have an obvious effect on the linear critical speeds and instability modes. The linear critical speed decreases monotonously as the crosswind velocity increases, and the influences of pitch moment and lift force on the linear critical speed are larger than the other components of the aerodynamic loads.
关键词Stability self-excited vibration high-speed railway steady aerodynamic load hunting multibody dynamics
DOI10.1142/S0219455418500931
URL查看原文
收录类别SCI ; EI
语种英语
WOS记录号WOS:000439097200005
关键词[WOS]CROSSWIND ACTION ; WHEEL PROFILE ; CURVED TRACKS ; DYNAMICS ; RELIABILITY ; BIFURCATION ; SYSTEMS ; TRUCKS ; MODEL
WOS研究方向Engineering, Civil ; Engineering, Mechanical ; Mechanics
WOS类目Engineering ; Mechanics
项目资助者Chinese Academy of Sciences [XDB22020101, XXH13506-204] ; National Key Research and Development Program of China [2016YFB1200602-09] ; National Basic Research Program (973 Program) of China [2014CB046801] ; National Natural Science Foundation of China [11672306, 51490673]
论文分区二类
力学所作者排名1
引用统计
文献类型期刊论文
条目标识符http://dspace.imech.ac.cn/handle/311007/77895
专题流固耦合系统力学重点实验室
作者单位1.Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
3.Nucl Power Inst China, Chengdu 610041, Sichuan, Peoples R China
推荐引用方式
GB/T 7714
Zeng XH,Lai J,Wu H. Hunting Stability of High-Speed Railway Vehicles Under Steady Aerodynamic Loads[J]. INTERNATIONAL JOURNAL OF STRUCTURAL STABILITY AND DYNAMICS,2018,18(7):1850093.
APA Zeng XH,赖姜,&吴晗.(2018).Hunting Stability of High-Speed Railway Vehicles Under Steady Aerodynamic Loads.INTERNATIONAL JOURNAL OF STRUCTURAL STABILITY AND DYNAMICS,18(7),1850093.
MLA Zeng XH,et al."Hunting Stability of High-Speed Railway Vehicles Under Steady Aerodynamic Loads".INTERNATIONAL JOURNAL OF STRUCTURAL STABILITY AND DYNAMICS 18.7(2018):1850093.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Zeng XH(曾晓辉)]的文章
[赖姜]的文章
[吴晗]的文章
百度学术
百度学术中相似的文章
[Zeng XH(曾晓辉)]的文章
[赖姜]的文章
[吴晗]的文章
必应学术
必应学术中相似的文章
[Zeng XH(曾晓辉)]的文章
[赖姜]的文章
[吴晗]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。