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Tunnel pressure wave investigation with a new moving model rig
Yang GW(杨国伟); Song JH(宋军浩); Yang QS(杨乾锁); Guo DL(郭迪龙)
Source PublicationProceedings of the Third International Conference on Railway Technology: Research, Development and Maintenance
Conference Date5-8 April 2016
Conference PlaceCagliari, Sardinia, Italy 
AbstractTo improve the test ability of high-speed train aerodynamics, a new moving model rig was established in the Institute of Mechanics, Chinese Academy of Sciences in 2014, in which the train model is accelerated indirectly by high compressed air and decelerated by the induced non-contact magnetic force. The rig can finish the aerodynamic tests of 1:8 scale three-car train models at a speed of up to 500km/h for a single-train and two-trains passing by each other in tunnel or in the open air. With the moving model rig, the pressure waves are measured along the single-track and double-track tunnel models of Chinese railway standard with 76m2and 100m2, respectively. The propagation and superposition characteristics of tunnel pressure waves are investigated. It is indicated that the instantaneous pressure waves are agreed with the calculated results and are corresponded with theoretical analyses. The moving model rig possesses the test capability of high-speed train aerodynamics. © Civil-Comp Press, 2016.
KeywordAerodynamics Compressed air Magnetic levitation vehicles Railroad cars Railroad transportation Railroads Wave propagation Chinese Academy of Sciences Chinese railways High speed train (HST) Instantaneous pressures Magnetic force Moving model rig Pressure waves Test capability
Indexed ByEI
Document Type会议论文
AffiliationKey Laboratory for Mechanics in Fluid Solid Coupling Systems, Institute of Mechanics, China Academy of Sciences Beijing, China
Recommended Citation
GB/T 7714
Yang GW,Song JH,Yang QS,et al. Tunnel pressure wave investigation with a new moving model rig[C]Proceedings of the Third International Conference on Railway Technology: Research, Development and Maintenance,2016.
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