This paper presents a methodology for the modeling of the transient thermal behavior of the disk brake of the vehicles using finite element methods. The influence of the wear properties of friction materials on thermoelastic behaviors is investigated to facilitate the conceptual design of the model. The coupled characteristics of the friction heat flow between the disk and pad as well as the effects of the brake disk thermal stress because of the variable applied pressure was considered. At the same time, the model was optimized by the experiment. Repeated brake processes with varying load, sliding speeds and temperature are applied in the simulation of the disk brakes. Experimental dependencies of the coefficient of friction and wear rate on the temperature of brake pad were approximated and applied to the model. The temperature and pressure on the contact surface of the pad/disk brake system obtained for constant and speed/pressure sensitivity applications were confronted and compared. The thermo-distribution is operated to visualize the disk temperature.


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    Title :

    Simulation of Temperature Distribution in Disk Brake Considering a Real Brake Pad Wear


    Contributors:
    Wu, Yaoqing (author) / Jin, Hongyun (author) / Li, Yunlong (author) / Ji, Zhengjia (author) / Hou, Shuen (author)

    Published in:

    Tribology Letters ; 56 , 2 ; 205-213


    Publication date :

    2014


    Size :

    9 Seiten




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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