摘要

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 similar to 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 similar to 26 % when the estimated optimal strengthening force was applied in another new running-in specification with the strengthening effects.

全文