The critical speed of the rotor can be calculated accurately by the transfer matrix method and the finite element method. Since the mass of the shaft section is neglected by the transfer matrix method, the calculation result is slightly larger. By establishing the 3D finite element model of the rotor system, the critical speed and mode of the rotor are analyzed. The results show that the bearing support stiffness has a great influence on the critical speed of the rotor, and the critical speed can be adjusted by changing the bearing stiffness and the rotor material. In order to avoid the critical speed of the rotor beyond the bending mode, the rotor shaft extension should be controlled within the safe range. The effect of the gyro effect on the natural frequency of the rotor is small, so the rotor gyro effect can be ignored when analyze the rotor dynamics.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Critical speed calculation and modal analysis of rotor for high-speed machine


    Beteiligte:
    Xing, Zezhi (Autor:in) / Wang, Xiuhe (Autor:in)


    Erscheinungsdatum :

    01.08.2017


    Format / Umfang :

    1172452 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Modal Analysis of High-Speed Traction Motor Rotor Shaft

    Xiang, Hui Yu ;Han, Bao An ;Leng, Chong Jie | Trans Tech Publications | 2012



    Critical Speed Vibration - Modal Balance

    Parkinson, Jon. | SAE Technical Papers | 1964


    Calculation and Analysis of Critical Speed of High-Speed Turbo-Expanders

    Chen, S. / Hou, Y. / Chen, R. | British Library Online Contents | 2010


    Modal Analysis on Rotor of Asynchronous Traction Motor Used in High-Speed Trains

    Chen, Si ;Wang, Fang ;Cao, Jun Ci | Trans Tech Publications | 2013