NDLI: Vibration thresholds for fretting corrosion in electrical connectors

Content Provider	IEEE Xplore Digital Library
Author	Flowers, G.T. Fei Xie Bozack, M. Malucci, R.D.
Copyright Year	2002
Description	Author affiliation: Center for Adv. Vehicle Electron., Auburn Univ., AL, USA (Flowers, G.T.; Fei Xie; Bozack, M.)
Abstract	Single frequency vibration tests were used to induce fretting corrosion in tin alloy plated contacts. The samples used in this study were connectors consisting of 25 pairs of mated pin and socket contacts. Experimental results for a variety of vibration levels, frequencies, and wiring tie-off lengths are presented. The experiments consisted of running a series of vibration tests at each frequency where the excitation level was stepped through a range of g-levels. During each test run contact resistance was monitored as a performance characteristic. The results exhibit threshold behavior at each frequency for the onset of fretting degradation. Typically a plateau region was observed where similar g-levels produced similar fretting rates. It was also found that outside the plateau region the g-levels varied according to the dynamic behavior of the mechanical system. In addition, a transfer matrix model was used to analyze these results. An empirical fit of the data correlated well with the model when damping was used. This analysis revealed the importance of the bending moment induced at the contact interface as a result of excitation levels and tie-off configurations. Consequently, it is concluded that dynamic response of the mechanical system under various g-levels and tie off configurations can greatly impact the performance of a connector system subjected to vibration stresses.
Sponsorship	Components, Packaging, and Manuf. Technol. Soc IEEE
Starting Page	133
Ending Page	139
File Size	1594955
Page Count	7
File Format	PDF
ISBN	0780374339
DOI	10.1109/HOLM.2002.1040833
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-10-23
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Corrosion Connectors Vibrations Frequency Testing Contacts Mechanical systems Tin alloys Sockets Wiring
Content Type	Text
Resource Type	Article

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