A Modification of the Calculation Model for the Prediction of the Wear of Silver-Coated Electrical Contacts with Consideration of Third Bodies

Yuan, Haomiao; Song, Jing; Schinow, Vitali

doi:10.1109/holm.2018.8611633

Cited by 4 publications

(4 citation statements)

References 15 publications

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“…According to Equations (7)-(12), the wear curve can be calculated and illustrated as Figure 12. The deviation between the average predicted value and the measured value is −0.9% after the long-term operation, which is greatly improved compared to the deviation of 16% from the prediction without consideration of third bodies and −3.6% from the prediction with the consideration of third bodies only by the last steady coefficient of friction in [15]. The wear of the contacts after a long-term operation can be predicted based on the wear data collected from a short period test under the operating condition.…”

Section: Wear Curvesmentioning

confidence: 84%

“…Samples: The wear prediction is conducted for the samples with the critical arrangement. The fundament for the wear prediction is based on Archard's wear equation as Equation (1) [15]:…”

Section: Methodsmentioning

confidence: 99%

“…The correlation between the sliding distance and the wear depth in phase I can be determined according to [15]:…”

mentioning

confidence: 99%

“…where s 1 is the sliding distance in phase I, h 1 is the wear in phase I. The correlation between the sliding distance and the wear depth in phase II during the first steady state of coefficient of friction is according to [15]:…”

mentioning

confidence: 99%

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An Improved Calculation Model for the Prediction of the Wear of Coated Electrical Contacts

Yuan

Song

2019

Technologies

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To connect terminals in a cyber-physical system, large quantities of electrical contacts are used. In order to guarantee a high reliability of the system, the lifetime of the electrical contacts should be very long. Thus, it is of great importance to understand the failure mechanism and then to predict the lifetime of the electrical contacts. For the applications under high thermal and/or mechanical loads, noble plating is a good choice, considering its inertness to oxidation. For noble plating, one of the most critical failure mechanisms is the fretting wear. Wear debris generated in the contact area, acting as the third bodies, will greatly influence the further wear behavior and electrical performance. In this study, the state of the art regarding third bodies is firstly reviewed, and then the influence of the third bodies on the wear and electrical performance is investigated, from the aspects of lifetime and the element distributions in contact area. Finally, an example of prediction of the wear of noble plating is shown with the consideration of the third bodies. Based on this study, by involving the third bodies, the wear of noble plating can be predicted with a higher accuracy.

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Section: Wear Curvesmentioning

confidence: 84%

“…Samples: The wear prediction is conducted for the samples with the critical arrangement. The fundament for the wear prediction is based on Archard's wear equation as Equation (1) [15]:…”

Section: Methodsmentioning

confidence: 99%

“…The correlation between the sliding distance and the wear depth in phase I can be determined according to [15]:…”

mentioning

confidence: 99%

mentioning

confidence: 99%

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