Experimental–numerical investigation of momentary discomfort in a high-speed train in varying wind speed conditions

2020 ◽  
pp. 1-20
Author(s):  
Dongrun Liu ◽  
Tian Li ◽  
Zhaijun Lu ◽  
Jun Chen ◽  
Mu Zhong
2020 ◽  
Vol 16 (1) ◽  
pp. 41-53
Author(s):  
Lu Cai ◽  
Zhen Lou ◽  
Nan Liu ◽  
Chao An ◽  
Jiye Zhang

2018 ◽  
Vol 57 (2) ◽  
pp. 247-268 ◽  
Author(s):  
Dongrun Liu ◽  
Qianxuan Wang ◽  
Mu Zhong ◽  
Zhaijun Lu ◽  
Jiabin Wang ◽  
...  

2013 ◽  
Vol 774-776 ◽  
pp. 58-63
Author(s):  
Kun Ye ◽  
Ren Xian Li

The numerical calculation models of the high-speed train in the straight and different radius curve railway are established. Author calculated transverse forces (moments) acting on the three sections (first train, middle train and rear train). At the same time, under with the shelter wind wall and without the wall, the change trends of side forces coefficients and rolling moments coefficients of trains with the train speed and the transverse wind speed are analyzed. Results show that, in the straight railway and curve railway, transverse loads coefficients increase with the increase of the transverse wind speed and decrease with the increase of the train speed. The transverse forces (moments) of the three sections of the train with the shelter wind wall are opposite to that without the wall. Traffic safety under crosswinds focuses on the rear train with the shelter wind wall and focuses on the first train without the wall. At the same train speed and transverse wind speed, side forces and rolling moments of trains in curve railway is greater than that of trains in straight railway. Absolute values of transverse loads coefficients decreased gradually with the increase of the radius of the curve, and their relationship basically is the linear relation.


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