The sub-rail stiffness of bolted alloy steel frog has a great influence on impact load of rail head and rail internal tensile stress. So it is very essential to optimize the sub-rail stiffness and carry on a fatigue calculation on weak frog components to guide frog design. Taking No.12, bolted alloy steel frog, single-way turnout as an example, the rules of frog stresses and deformations influenced by different sub-rail stiffness under the train dynamic load were analyzed and compared based on the finite element method, and carried on a fatigue calculation on the weak zone of the frog centre. It turned out that as the sub-rail stiffness increases, the rail impact load by train increase, and rail tensile stress and vertical deformation both decrease. A proposal sub-rail stiffness is 50kN/mm; The maximum fatigue stress appears in the zone where the frog centre sections change greatly, so the nose rail structure in this zone should be optimized.


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    Titel :

    Dynamic Responses Due to Different Sub-rail Stiffness of Bolted Alloy Steel Frog


    Weitere Titelangaben:

    Lect. Notes Electrical Eng.


    Beteiligte:
    Ni, Yi-Qing (Herausgeber:in) / Ye, Xiao-Wei (Herausgeber:in) / Cao, Yang (Autor:in) / Wang, Ping (Autor:in) / Zhao, Weihua (Autor:in)


    Erscheinungsdatum :

    2012-01-01


    Format / Umfang :

    8 pages





    Medientyp :

    Aufsatz/Kapitel (Buch)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




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