| RESEARCH ON RUNNING STABILITY OF CRH3 HIGH SPEED TRAINS PASSING BY EACH OTHER | |
Sun ZX(孙振旭) ; Zhang, YY; Guo DL(郭迪龙); Yang GW(杨国伟); Liu, YB; Sun, ZX (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China.
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| Source Publication | ENGINEERING APPLICATIONS OF COMPUTATIONAL FLUID MECHANICS
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| 2014-03 | |
| Volume | 8Issue:1Pages:140-157 |
| ISSN | 1994-2060 |
| Abstract | Two scenarios of trains passing by each other are usually encountered, which are trains passing by each other in the tunnel and passing by each other in the open air, respectively. The prototype of the CRH3 high speed train is considered in the present paper, with bogies, windshields, pantograph shrouds, air conditioner shrouds and other complex structures taking into consideration. Aerodynamic loads and multi-body system response of this prototype are discussed under the conditions of both scenarios. The variations of aerodynamic loads and the pressure on the surface of the trains are mainly analyzed, and then the formation mechanism of the variations is discussed. A comparative study of the differences in both scenarios is also performed. In addition, the dynamic response of the high speed train has been studied by loading the unsteady aerodynamic forces and torques. Furthermore, the derailment coefficient, the wheel unloading rate, the wheel/rail lateral force and the wheel/rail vertical force are analyzed as assessment criteria to verify the running stability in the two scenarios. The most unsafe position during the process of trains passing by each other and the variation of the four parameters with the speed is obtained. Then the linear fit between the four parameters and the speed has been performed, and the limiting speed under these two scenarios are also obtained. As a result, the results of this paper could provide guidance for safe running of trains passing by each other in reality. |
| Keyword | Aerodynamic Loads Tunnel Pressure Waves Multi-body Dynamic Analysis Running Stability |
| Subject Area | Engineering ; Mechanics |
| URL | 查看原文 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000332216500012 |
| Funding Organization | This work was supported by the Major State Basic Research Development Program of China ("973" Program) (Grant No. 2011CB711100) and National Key Technology R&D Program (Grant No. 2009BAQG12A03). |
| Department | LMFS流固耦合与数值计算(LHO) |
| Classification | 二类/Q2 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/48759 |
| Collection | 流固耦合系统力学重点实验室 |
| Corresponding Author | Sun, ZX (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China. |
| Recommended Citation GB/T 7714 | Sun ZX,Zhang, YY,Guo DL,et al. RESEARCH ON RUNNING STABILITY OF CRH3 HIGH SPEED TRAINS PASSING BY EACH OTHER[J]. ENGINEERING APPLICATIONS OF COMPUTATIONAL FLUID MECHANICS,2014,8,1,:140-157. |
| APA | Sun ZX,Zhang, YY,Guo DL,Yang GW,Liu, YB,&Sun, ZX .(2014).RESEARCH ON RUNNING STABILITY OF CRH3 HIGH SPEED TRAINS PASSING BY EACH OTHER.ENGINEERING APPLICATIONS OF COMPUTATIONAL FLUID MECHANICS,8(1),140-157. |
| MLA | Sun ZX,et al."RESEARCH ON RUNNING STABILITY OF CRH3 HIGH SPEED TRAINS PASSING BY EACH OTHER".ENGINEERING APPLICATIONS OF COMPUTATIONAL FLUID MECHANICS 8.1(2014):140-157. |
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