Improving Belleville Washer Spring Characteristics Using Elastomer Filling

    Volume 42, Issue 1 (January 2014)

    ISSN: 0090-3973

    CODEN: JTEOAD

    Published Online: 18 October 2013

    Page Count: 7


    Manđuka, Abas
    BNT Factory of Machines and Hydraulics, Novi Travnik,

    Gubeljak, Nenad
    Faculty of Mechanical Engineering, Univ. of Maribor, Maribor,

    Predan, Jožef
    Faculty of Mechanical Engineering, Univ. of Maribor, Maribor,

    Pinterić, Marko
    Faculty of Civil Engineering, Univ. of Maribor, Maribor,

    (Received 1 December 2012; accepted 23 July 2013)

    Abstract

    Belleville washer steel springs are characterized by a long fatigue life, better space utilization, low creep tendency, and high force bearing capacity with a small spring deflection. In the case of thicker springs, a greater force bearing and greater stiffness are obtained, but the deflection of the spring is reduced. In such a case, the fatigue life is reduced and there is a very high probability that a Belleville washer spring may fail in a brittle manner, causing additional damage to machinery. In order to prevent such a fracture of a Belleville washer, an elastomeric filling was used on both free surfaces of the spring. Experimental testing and numerical analyses show that enhanced loading characteristics were obtained when the elastomer filling was increasingly involved in the force bearing process. When the elastomer filling is compressed, the stresses in the Belleville washer steel are reduced, because the majority of the deflection stress is shared by the elastomer instead of the steel.


    Paper ID: JTE20120346

    DOI: 10.1520/JTE20120346

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    Author
    Title Improving Belleville Washer Spring Characteristics Using Elastomer Filling
    Symposium , 0000-00-00
    Committee A01