| Hunting Stability of High-Speed Railway Vehicles Under Steady Aerodynamic Loads | |
Zeng XH(曾晓辉) ; Lai J(赖姜); Wu H(吴晗)
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| Source Publication | INTERNATIONAL JOURNAL OF STRUCTURAL STABILITY AND DYNAMICS
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| 2018-07-01 | |
| Volume | 18Issue:7Pages:1850093 |
| ISSN | 0219-4554 |
| Abstract | 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. |
| Keyword | Stability self-excited vibration high-speed railway steady aerodynamic load hunting multibody dynamics |
| DOI | 10.1142/S0219455418500931 |
| URL | 查看原文 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000439097200005 |
| WOS Keyword | CROSSWIND ACTION ; WHEEL PROFILE ; CURVED TRACKS ; DYNAMICS ; RELIABILITY ; BIFURCATION ; SYSTEMS ; TRUCKS ; MODEL |
| WOS Research Area | Engineering, Civil ; Engineering, Mechanical ; Mechanics |
| WOS Subject | Engineering ; Mechanics |
| Funding Organization | 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] |
| Classification | 二类 |
| Ranking | 1 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/77895 |
| Collection | 流固耦合系统力学重点实验室 |
| Affiliation | 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 |
| Recommended Citation 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. |
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| File Name/Size | DocType | Version | Access | License | ||
| IrJ2018283.pdf（1470KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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