The pressure fluctuation excited by the hydraulic pump can cause serious vibration in aero hydraulic pipeline system, which poses a serious threat to the safety of the aircraft. Therefore, an effective method for predicting the fluid pressure fluctuation and dynamic response of pipeline is strongly recommended. In this paper, a comprehensive model for predicting the dynamic response of pipeline, which includes the Poisson coupling, friction coupling, the vibration damping, Coriolis, and centrifugal forces is proposed. A numerical code is presented to solve the hydraulic pipeline equations. In this code, the hydraulic equations are solved by the method of characteristics and the dynamic equations of pipeline are solved by the finite element method combined with the Newmark algorithm. The numerical code is validated through the comparison of the dynamic response for a typical hydraulic pipeline with experiment. The obtained results indicate that the current combining method of characteristics and finite element method approach can predict the dynamic response of hydraulic pipeline with sufficient accuracy, which can serve as an efficient tool in the design and maintenance of aero hydraulic pipeline.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Dynamic response analysis of aero hydraulic pipeline system under pump fluid pressure fluctuation


    Contributors:


    Publication date :

    2019-04-01


    Size :

    11 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Aero-engine low pressure pump

    European Patent Office | 2015

    Free access


    System and method for aero-engine air pressure pipeline and signal fault detection

    ZHAO ZHENKE / WANG CHUNXIAO / TAO WENHUA et al. | European Patent Office | 2022

    Free access

    UK pump fluctuation

    Online Contents | 2003


    Constant-Pressure Hydraulic Pump

    Galloway, C. W. | NTRS | 1982