A distributed parameter mathematical model of a complete power steering hydraulic transmission circuit has been developed and implemented on a personal computer to analyze the effect of tuning cables on the attenuation of pressure waves generated by the pump. Tuning cables, flexible tubes positioned coaxially inside a length of hose placed at a convenient location in the circuit, reduce fluidborne noise primarily by destructive interference and viscous damping. The model uses a transfer matrix approach that includes two-dimensional viscous flow and three-dimensional fluid-structure interaction. It can be used for sizing and positioning tuning cable devices in power steering as well as other hydraulic systems prior to verification testing of the circuit.


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    Title :

    Analysis of Tuning Cables for Reduction of Fluidborne Noise in Automotive Power Steering Hydraulic Lines


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    Noise & Vibration Conference & Exposition ; 1993



    Publication date :

    1993-05-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English






    Hydraulic Fluidborne Noise Mechanics

    Skaistis, Stanley J. | SAE Technical Papers | 1975


    Analysis of tuning cables for reduction of fluidborne noise in automotive power steering hydraulic lines

    Hastings,M.C. / Chen,C.C. / Ohio State Univ.,Columbus,US | Automotive engineering | 1993