ハンマリング加振機構による電気接点の劣化現象:　接触抵抗について（その10）

摘要

Authors measured increasing resistances on electrical contacts by means of sliding contact mechanism respectively on the conditions that (1) sliding forces were 2.0N or 0.3N and (2) sliding amplitudes were ±5.0um or ±10.0um under the operation number of about 2Smilions. It was suggested that there was potentiality to make a model of the tendencies of contact variations in the primary stages in the above cases. It was suggested that there was the model applied logistic model added to periodical component about averaging data. It was studied that there were the parameters (sliding force and sliding amplitude) caused the relative displacements of the electrical contacts on the time-sequential fluctuations of the contact resistances. And it was suggested that the fretting corrosion model or sliding contact one would be applied to the fluctuation of contact resistance.%著者らは，摺動接触機構において，摺動力2.0Nおよび0.3N，摺動振幅土5.0μmおよび土10.0μmの条件で，それぞれ約2500万回の実験を行い，抵抗値の増加を測定した．また，変動初期における抵抗値の立ち上がりの債向をモチル化することの可能性を示唆できた．平均化（平滑化）したデータにおいてはロジスティック・モデルに時間変動成分を付加したモデルが適用できることが示唆された．さらに，接触抵抗の時系列変動における接点の相対変位に与えるパラメータ（摺動振幅・摺動力）の検討をした．さらに，この接触抵抗値の変動には紬fretting corrosionモデルおよび摺動接触モデルが適用できる可能性が示唆された．