Influences of aerodynamic loads on hunting stability of high-speed railway vehicles and parameter studies
文献类型：期刊论文
| 作者 | Zeng XH(曾晓辉) ; Wu H(吴晗); Lai J(赖姜); Sheng HZ(盛宏至)
|
| 刊名 | Acta Mechanica Sinica
 |
| 出版日期 | 2014-12 |
| 卷号 | 30期号:6页码:889-900 |
| 关键词 | Hunting stability Linear critical speed Nonlinear critical speed Aerodynamic loads Suspension parameters Orthogonal experimental design |
| ISSN号 | 0567-7718 |
| 产权排序 | [Zeng, Xiao-Hui; Wu, Han; Lai, Jiang; Sheng, Hong-Zhi] Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China |
| 通讯作者 | 曾晓辉 (Zeng XH) |
| 合作状况 | 国内 |
| 中文摘要 | The influences of steady aerodynamic loads on hunting stability of high-speed railway vehicles were investigated in this study. A mechanism is suggested to explain the change of hunting behavior due to actions of aerodynamic loads: the aerodynamic loads can change the position of vehicle system (consequently the contact relations), the wheel/rail normal contact forces, the gravitational restoring forces/moments and the creep forces/moments. A mathematical model for hunting stability incorporating such influences was developed. A computer program capable of incorporating the effects of aerodynamic loads based on the model was written, and the critical speeds were calculated using this program. The dependences of linear and nonlinear critical speeds on suspension parameters considering aerodynamic loads were analyzed by using the orthogonal test method, the results were also compared with the situations without aerodynamic loads. It is shown that the most dominant factors affecting linear and nonlinear critical speeds are different whether the aerodynamic loads considered or not. The damping of yaw damper is the most dominant influencing factor for linear critical speeds, while the damping of lateral damper is most dominant for nonlinear ones. When the influences of aerodynamic loads are considered, the linear critical speeds decrease with the rise of crosswind velocity, whereas it is not the case for the nonlinear critical speeds. The variation trends of critical speeds with suspension parameters can be significantly changed by aerodynamic loads. Combined actions of aerodynamic loads and suspension parameters also affect the critical speeds. The effects of such joint action are more obvious for nonlinear critical speeds. |
| 分类号 | 二类 |
| 类目[WOS] | Engineering, Mechanical ; Mechanics |
| 研究领域[WOS] | Engineering ; Mechanics |
| 关键词[WOS] | LATERAL STABILITY ; CURVED TRACK ; BIFURCATION ; DYNAMICS ; TRUCKS ; SIMULATION ; BEHAVIOR ; MOTIONS ; CHAOS |
| 收录类别 | SCI ; EI ; CSCD |
| 资助信息 | The project was supported by the National Basic Research Program (973 Program) of China (2011CB711100 and 2014CB046801), the National Natural Science Foundation of China (11072246 and 51490673), and the Knowledge Innovation Program of Chinese Academy of Sciences (KJCX2-EW-L01). |
| 原文出处 | http://link.springer.com/article/10.1007/s10409-014-0119-5 |
| 语种 | 英语 |
| CSCD记录号 | CSCD:5331828 |
| WOS记录号 | WOS:000348990100014 |
| 公开日期 | 2015-02-16 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/49542]  |
| 专题 | 力学研究所_流固耦合系统力学重点实验室(2012-) |
| 推荐引用方式 GB/T 7714 | Zeng XH,Wu H,Lai J,et al. Influences of aerodynamic loads on hunting stability of high-speed railway vehicles and parameter studies[J]. Acta Mechanica Sinica,2014,30(6):889-900. |
| APA | Zeng XH,Wu H,Lai J,&Sheng HZ.(2014).Influences of aerodynamic loads on hunting stability of high-speed railway vehicles and parameter studies.Acta Mechanica Sinica,30(6),889-900. |
| MLA | Zeng XH,et al."Influences of aerodynamic loads on hunting stability of high-speed railway vehicles and parameter studies".Acta Mechanica Sinica 30.6(2014):889-900. |
入库方式： OAI收割
来源：力学研究所
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