The increased dynamic loading of rail vehicles during the motion depends primarily on their kinematic excitation. For the rotary service units which are attached to railway wagons, the reliability and lifetime can be affected by the increased dynamic load generated by the motion. The article deals with the measurement of the vibration on the radial piston pump at different speeds from 60 km/h to 120 km/h. The dynamic load of the pump also depends on its size, the characteristics of the bogie which vibrates and the place of attachment of the pump to the wagon and/or on the aim for which the pump was designed. For almost all pumps, regardless of the type of bearings used, measuring the vibration acceleration and calculating the effective value of the broadband vibration velocity on components such as bearing boxes is generally sufficient to evaluate the operating conditions of rotating shaft components with respect to trouble-free operation and corresponding lifetime. The magnitude of the dynamic load of the pump is indicated mainly by the characteristic frequencies of the bearings, whose amplitudes are noticeably larger. The article also deals with a theoretical analysis of the vibration severity related to the conditions of mounting and attachment of rotating components, such as a pump and/or compressor, at a moving vehicle that is kinematically excited. It also analyses the need to extend the frequency range to determine the vibration severity of rotary machines towards the lower frequency range.


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    Title :

    Influence of Kinematic Excitation on the Dynamic Load of Rotary Machines Bearings Mounted on a Rail Vehicle


    Additional title:

    Lect.Notes Mechanical Engineering


    Contributors:

    Conference:

    Vehicle and Automotive Engineering ; 2022 ; MISKOLC, Hungary September 08, 2022 - September 09, 2022



    Publication date :

    2022-09-10


    Size :

    13 pages





    Type of media :

    Article/Chapter (Book)


    Type of material :

    Electronic Resource


    Language :

    English




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