ハンマリング加振機構による電気接点の劣化現象: 加振機構のモデリング（9）

摘要

The authors have developed the mechanism which gives vibration to electrical contacts by hammering oscillation and studied the influences of a micro-oscillation on the contacts. In time & space fields, by combinations of unit step functions as external force, it was suggested that mathematical approach was able to be compared with experimental data using continuous approximation to a thin plate. In consideration of friction force & inertial force generated in connectors it was suggested that another model was able to be compared with experimental data and to explain the time series oscillation on the electrical contacts and the degradation phenomenon of electrical contacts. By making use of these models and by initial & boundary conditions, it was suggested that the approximate estimation of fundamental mechanical quantities, such as displacement, acceleration and mechanical energy was able to be carried out.%電気接点に実用的振動を与えうるハンマリング加振機構を開発し，微小振動が接触抵抗に与える影響を考察できる可能性を検討してきた.時空間領域において，基板に対して，外力として単位ステップ関数の組み合わせを使用した平板における連続体近似モデルを構築し，実験結果と比較しうる可能性を示唆した.また，コネクタにおける摩擦力および慣性力を考慮した簡単なモデル化を行い，実験値との対応を検討し，接点における時系列振動を解析し，さらに電気接点における劣化現象を説明しうる可能性を示唆した.初期条件・境界条件を考慮してこれらのモデルを用いることで変位・加速度・力学的エネルギーなどの基本的な力学量に関する考察を行いうる可能性を示唆した.