Volume 42, Issue 3 (May 2014)

    A Novel Running-In Specification with Strengthening Effects in Fatigue

    (Received 23 August 2012; accepted 12 September 2013)

    Published Online: 2014


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    Using two types of automobile transmission assemblies, a novel running-in specification with strengthening effects is proposed and investigated by the strengthening of low-amplitude forces below the fatigue limit. The phenomenon is also referred to as understressing or coaxing. In this novel running-in specification, the fatigue life will be prolonged and the assembly cost is unchanged. The average fatigue life of one transmission assembly was increased ∼40 % when the original running-in force was replaced by the optimal strengthening force in the new running-in specification. The average fatigue life of the other type of transmission assembly was improved ∼26 % when the estimated optimal strengthening force was applied in another new running-in specification with the strengthening effects.

    Author Information:

    Lu, Xi
    Univ. of Shanghai for Science and Technology, Shanghai,

    Stock #: JTE20120257

    ISSN: 0090-3973

    DOI: 10.1520/JTE20120257

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    Title A Novel Running-In Specification with Strengthening Effects in Fatigue
    Symposium , 0000-00-00
    Committee E08