TY - JOUR
T1 - Dynamic response of railway vehicles under unsteady aerodynamic forces caused by local landforms
AU - Chen, Zhengwei
AU - Liu, Tanghong
AU - Li, Ming
AU - Yu, Miao
AU - Lu, Zhaijun
AU - Liu, Dongrun
N1 - Funding Information:
This work was supported by the National Key R&D Program of China (Grant No. 2017YFB1201304-17), the National Railway Administration of the People’s Republic of China (Grant No. KF2017-006), the graduate student independent innovation project in Central South University (Grant No. 2017zzts197), and China scholarship council (CSC, Grant No. 201806370043).
Publisher Copyright:
Copyright © 2019 Techno-Press, Ltd.
PY - 2019
Y1 - 2019
N2 - When a railway vehicle runs in crosswinds, the unsteady aerodynamic forces acting on the train induced by the vehicle speed, crosswind velocity and local landforms are a common problem. To investigate the dynamic performance of a railway vehicle due to the influence of unsteady aerodynamic forces caused by local landforms, a vehicle aerodynamic model and vehicle dynamic model were established. Then, a wind-loaded vehicle system model was presented and validated. Based on the wind-loaded vehicle system model, the dynamic response performance of the vehicle, including safety indexes and vibration characteristics, was examined in detail. Finally, the effects of the crosswind velocity and vehicle speed on the dynamic response performance of the vehicle system were analyzed and compared.
AB - When a railway vehicle runs in crosswinds, the unsteady aerodynamic forces acting on the train induced by the vehicle speed, crosswind velocity and local landforms are a common problem. To investigate the dynamic performance of a railway vehicle due to the influence of unsteady aerodynamic forces caused by local landforms, a vehicle aerodynamic model and vehicle dynamic model were established. Then, a wind-loaded vehicle system model was presented and validated. Based on the wind-loaded vehicle system model, the dynamic response performance of the vehicle, including safety indexes and vibration characteristics, was examined in detail. Finally, the effects of the crosswind velocity and vehicle speed on the dynamic response performance of the vehicle system were analyzed and compared.
KW - Dynamic performance
KW - Landforms
KW - Railway vehicle
KW - Unsteady aerodynamic forces
UR - http://www.scopus.com/inward/record.url?scp=85071932480&partnerID=8YFLogxK
U2 - 10.12989/was.2019.29.3.149
DO - 10.12989/was.2019.29.3.149
M3 - Journal article
AN - SCOPUS:85071932480
SN - 1226-6116
VL - 29
SP - 149
EP - 161
JO - Wind and Structures, An International Journal
JF - Wind and Structures, An International Journal
IS - 3
ER -