Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Study on Critical Speed of High-Speed Train Running on Bridge under Strong Crosswind
The train-bridge aerodynamic spatial model was established, and the aerodynamic coefficients of train on bridge were calculated accordingly. The method for acquiring train critical speed under crosswind was derived by the statics, the displacement bring from springs, aerodynamic force, lateral and vertical vibrational inertia force, centrifugal force and gravitational force were considered in the derivation. The results show that the head trains aerodynamic coefficient will reach peak value around wind incidence angle, the rear trains aerodynamic coefficient varies constantly with incidence angle. Side force and lift force coefficients will get maximums when train attack angle, overturning moment coefficient absolute get maximum at. For trains overturning stability, crosswind from the inner of curve blows to the head train running on the windward line of bridge is the most dangerous situation.
Study on Critical Speed of High-Speed Train Running on Bridge under Strong Crosswind
The train-bridge aerodynamic spatial model was established, and the aerodynamic coefficients of train on bridge were calculated accordingly. The method for acquiring train critical speed under crosswind was derived by the statics, the displacement bring from springs, aerodynamic force, lateral and vertical vibrational inertia force, centrifugal force and gravitational force were considered in the derivation. The results show that the head trains aerodynamic coefficient will reach peak value around wind incidence angle, the rear trains aerodynamic coefficient varies constantly with incidence angle. Side force and lift force coefficients will get maximums when train attack angle, overturning moment coefficient absolute get maximum at. For trains overturning stability, crosswind from the inner of curve blows to the head train running on the windward line of bridge is the most dangerous situation.
Study on Critical Speed of High-Speed Train Running on Bridge under Strong Crosswind
Xiang, Chao-Qun (Autor:in) / Guo, Wen-Hua (Autor:in) / Zhang, Jia-wen (Autor:in)
2014
5 Seiten
Aufsatz (Konferenz)
Englisch
Study on Critical Speed of High-Speed Train Running on Bridge under Strong Crosswind
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