Journal Published Online: 25 March 2014
Volume 42, Issue 3

A Novel Running-In Specification with Strengthening Effects in Fatigue



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, CN
Pages: 8
Price: $25.00
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Stock #: JTE20120257
ISSN: 0090-3973
DOI: 10.1520/JTE20120257