3322 Analysis on Individual Differences in Seated Passengers' Vibrations in High Speed Railway Vehicles

2012 ◽  
Vol 2012.21 (0) ◽  
pp. 75-78
Author(s):  
Hiroshi TANAKA ◽  
Ryuzo HAYASHI ◽  
Masao NAGAI ◽  
Ryohei SHIMAMUNE ◽  
Shinichi HASEGAWA ◽  
...  
Keyword(s):  
Individual Differences ◽  
High Speed ◽  
High Speed Railway ◽  
Railway Vehicles

Dynamic Performance of HTS Maglev and Comparisons with Another Two Types of High-Speed Railway Vehicles

Cryogenics ◽  
2021 ◽  
pp. 103321
Author(s):  
Yuhang Yuan ◽  
Jipeng Li ◽  
Zigang Deng ◽  
Zhehao Liu ◽  
Dingding Wu ◽  
...  
Keyword(s):  
High Speed ◽  
Dynamic Performance ◽  
High Speed Railway ◽  
Railway Vehicles ◽  
Hts Maglev

scholarly journals Aerodynamic Phenomena Caused by the Passage of a Train. Part 2: Pressure Influence on Passing Trains

2021 ◽  
Vol 65 (192) ◽  
pp. 195-202
Author(s):  
Andrzej Zbieć
Keyword(s):  
High Speed ◽  
Rolling Stock ◽  
Literature Analysis ◽  
High Speed Railway ◽  
Railway Vehicles ◽  
Effect Of Pressure ◽  
Pressure Changes

In the series of articles describing the aerodynamic phenomena caused by the passage of a train, the effects of a train running at high speed on itself, on other trains, on objects on the track and on people are characterized. This impact can be of two types – generated pressure and slipstream. Apart from the literature analysis, the author’s research is also taken into account. The second part presents the effect of pressure changes on the front and side surfaces of passing trains. Conclusions concerning side windows and windscreens in high-speed railway vehicles and older type railway vehicles with lower allowable speeds and the possibility of using various rolling stock on the same lines are presented. Keywords: rolling stock, high-speed railways, aerodynamic phenomena

Fatigue life assessment of bogie frames in high-speed railway vehicles considering gear meshing

2020 ◽  
Vol 132 ◽  
pp. 105353 ◽  
Author(s):  
F. Guo ◽  
S.C. Wu ◽  
J.X. Liu ◽  
W. Zhang ◽  
Q.B. Qin ◽  
...  
Keyword(s):  
Fatigue Life ◽  
High Speed ◽  
Life Assessment ◽  
High Speed Railway ◽  
Railway Vehicles ◽  
Fatigue Life Assessment

scholarly journals Hunting Stability of High-Speed Railway Vehicles Under Steady Aerodynamic Loads

2018 ◽  
Vol 18 (07) ◽  
pp. 1850093 ◽  
Author(s):  
Xiao-Hui Zeng ◽  
Jiang Lai ◽  
Han Wu
Keyword(s):  
Stability Analysis ◽  
High Speed ◽  
Critical Speed ◽  
Railway Vehicle ◽  
Aerodynamic Load ◽  
High Speed Railway ◽  
Aerodynamic Loads ◽  
Railway Vehicles ◽  
Pitch Moment ◽  
Hunting Stability

With the rising speed of high-speed trains, the aerodynamic loads become more significant and their influences on the hunting stability of railway vehicles deserve to be considered. Such an effect cannot be properly considered by the conventional model of hunting stability analysis. To this end, the linear hunting stability of high-speed railway vehicles running on tangent tracks is studied. A model considering the steady aerodynamic loads due to the joint action of the airflow facing the moving train and the crosswind, is proposed for the hunting stability analysis of a railway vehicle with 17 degrees of freedom (DOF). The key factors considered include: variations of the wheel–rail normal forces, creep coefficients, gravitational stiffness and angular stiffness due to the actions of the aerodynamic load, which affects the characteristics of hunting stability. Using the computer program developed, numerical calculations were carried out for studying the behavior of the linear hunting stability of vehicles under steady aerodynamic loads. The results show that the aerodynamic loads have an obvious effect on the linear critical speeds and instability modes. The linear critical speed decreases monotonously as the crosswind velocity increases, and the influences of pitch moment and lift force on the linear critical speed are larger than the other components of the aerodynamic loads.

Sign in / Sign up

Export Citation Format

Share Document