The SAE Recommended Practice J1802, Brake Block Effectiveness Rating (1), has the prupsoe of establishing a uniform procedure for determination and classification of brake effectiveness for commercial vehicle brakes. The practice provides a means to characterize the friction properties of truck brake lining materials in a representative S-cam brake. However, the test has been found to exhibit an unacceptably large range of variability in the implied friction coefficient for the lining. It has been postulated that some of the variability arises from factors within the brakes that are used for the test--specifically, dimensional tolerances, and possible friction in the moving parts. A computer model of an S-cam brake was developed under this work to help examine various brake parameter senstivities. The model calculates brake torque for a specified set of geometry, friction properties, and constant input air chamber force.


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    Titel :

    Determining the Sensitivities of an S-Cam Brake


    Beteiligte:
    C. C. MacAdam (Autor:in) / T. D. Gillespie (Autor:in)

    Erscheinungsdatum :

    1998


    Format / Umfang :

    104 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




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