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Abstract

The wind tunnel test is conducted to measure the wind loads of a train and the wind pressure distribution above track. The dynamic responses of vehicle are calculated by using the coupling vibration method of wind-vehicle-bridge (line) systems with the aid of the self-developed software BANSYS(Bridge Analysis System) to determine the protection effect of wind barrier. Three kinds of porosities and four kinds of heights are installed on three line structural forms. The aerodynamic mechanism of wind barriers on the railway is investigated and the effects of sudden changes of vehicle wind loads are examined by measuring the aerodynamic coefficients of a single train. The quantity of wind loads' sudden change and the dynamic responses of vehicles is considered as the input index. The protection effect of wind barrier is evaluated by data envelopment analysis (DEA) when the output is the same. The results show that the wind barrier with a certain height could increase the lift-drag ratio and is more likely to increase the lift coefficient. The method of comprehensive evaluation can be applied in the protection effect evaluation of the railway wind barrier and the comprehensive evaluation using the indexes of sudden change of vehicle wind loads is in agreement with the vehicle response index.

Keywords

protection effect railway wind barrier cross wind wind-vehicle-bridge (line) system DEA wind tunnel test

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References

Barcala

M.A.

and Meseguer

(2007). “An experimental study of the influence of parapets on the aerodynamic loads under cross wind on a two-dimensional model of a railway vehicle on a bridge”, Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit, Vol. 221, No. 4, pp. 487–194.

Charnes

Cooper

W.W.

and Rhodes

(1978). “Measuring the efficiency of decision making units”, European Journal of Operational Reasearch, Vol. 2, No. 6, pp.429–444.

Charuvisit

Kimura

and Fujino

(2004). “Effects of wind barrier on a vehicle passing in the wake of a bridge tower in cross wind and its response”, Journal of Wind Engineering and Industrial Aerodynamics, Vol. 92, No. 7–8, pp. 609–639.

Charuvisit

Kimura

and Fujino

(2004). “Experimental and semi-analytical studies on the aerodynamic forces acting on a vehicle passing through the wake of a bridge tower in cross wind”, Journal of Wind Engineering and Industrial Aerodynamics, Vol. 92, No. 9, pp. 749–780.

Chen

Z.W.

Y.L.

and Wu

D.J.

(2011a), “Dynamic stress analysis of long suspension bridges under wind, railway and highway loading”, Journal of Bridge Engineering, ASCE, Vol. 16, No. 3, pp. 383–391.

Chen

Z.W.

Y.L.

and Wong

K.Y.

(2011b), “Fatigue analysis of long-span suspension bridges under multiple loading: Case study”, Engineering Structures, Vol. 33, No. 12, pp. 3246–3256.

Chiu

T.W.

and Squire

L.C.

(1992). “An experimental study of the flow over a train in a crosswind at large yaw angles up to 90”, Journal of Wind Engineering and Industrial Aerodynamics, Vol. 45, pp. 47–74.

Coleman

S.A.

and Baker

C.J.

(1990). “High sided road vehicles in cross winds”, Journal of Wind Engineering and Industrial Aerodynamics, Vol. 36, No. pt2, pp. 1383–1392.

Hao

(2000). “A corrected data envelopment analysis model for estimating the relative efficiency of decision making units”, Systems Engineering and Electronics,Vol. 22, No. 3, pp:40–43. (in Chinese)

10.

Huang

Liao

H.L.

and Li

Y.L.

(2006). “Analysis of flow characteristics around train-bridge system under cross wind and train induced wind”, Journal of Railway Science and Engineering, Vol. 3, No. 6, pp. 61–65. (in Chinese)

11.

Kim

D.H.

Kwon

S.D.

Lee

I.K.

and Jo

B.W.

(2011). “Design criteria of wind barriers for traffic. Part 2: Decision making process”, Wind and structures, Vol. 14, No. 1, pp. 71–80.

12.

Kiya

Arie

and Koshikawa

(1980). “An analysis of uniform shear flow past a porous plate attached to a plane surface”, Journal of Fluids Engineering, Vol. 102, pp. 160–165.

13.

Kozmar

Procino

Borsani

and Bartoli

(2012). “Sheltering efficiency of wind barriers on bridges”, Journal of Wind Engineering and Industrial Aerodynamics, Vol. 107–108, pp. 274–284.

14.

Kwon

S.D.

Kim

D.H.

Lee

S.H.

and Song

S.H.

(2011). “Design criteria of wind barriers for traffic. Part 1: Wind barrier performance”, Wind and structures, Vol. 14, No. 1, pp. 55–70.

15.

Y.L.

Qiang

S.Z.

Liao

H.L.

and Xu

Y.L.

(2005). “Dynamics of wind-rail vehicle-bridge systems”, Journal of Wind Engineering and Industrial Aerodynamic, Vol. 93, pp. 483–507.

16.

Y.L.

Liao

H.L.

and Qiang

S.Z.

(2004). “Simplifying the simulation of stochastic wind velocity fields for long cable-stayed bridges”, Computers & Structure, Vol. 80, No. 20–21, pp.591–598.

17.

Lin

G.M.

and Ye

W.H.

(2003). “Wavelet analysis of turbulent signal in the lee of windbreak”, Acta Scientiarum Naturalium Universitatis Pekinensis, Vol. 39, No. 5, pp:732–735. (in Chinese)

18.

Papesch

(1972). “Model study of windbreaks on railway on bridge”, New Zealand Engineering, Vol. 27, No. 4, pp. 132–139.

19.

Wang

H.X.

Gao

Wang

S.D.

and Yin

Y.S.

(1990). “A study on the height of wind break wall”, China Railway Science, Vol. 11, No.1, pp. 14–23. (in Chinese)

20.

Wang

H.X.

Wang

S.D.

Gao

and Zhang

B.Y.

(1990). “The effects of wind break engineering on wind characteristics and lateral aerodynamic characteristics of railway cars”, Acta Aerodynamica Sinica, Vol. 8, No. 4, pp. 430–436. (in Chinese)

21.

Xiong

X.H.

Liang

X.F.

Gao

G.J.

and Liu

T.H.

(2006). “Train aerodynamic characteristics in strong cross wind on Lanzhou-Xinjiang railway line”, J. CENT. SOUTH UNIV. (Science and Technology), Vol. 37, No. 6, pp. 1183–1188. (in Chinese)

22.

Zhai

W.M.

(2007). Vehicle–Track Coupling Dynamics, Third Edition, Chinese Railway Press, Beijing, China. (in Chinese)

Protection Effect of Railway Wind Barrier on Running Safety of Train under Cross Winds

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