リユース部品を含む製品の品質予測 : 磨耗を考慮した公差解析  [in Japanese] Quality Prediction of the Product Containing Reused Parts : Tolerance Analysis for Worn Parts  [in Japanese]

製品をリユースするに当たり, 問題となる事柄の1つに磨耗がある. 磨耗した部品を用いると, 製品の不良品数が増加するなどの問題が生じる. 本研究では, リユース促進のために, 組立品の状態を予測する手法である公差解析に磨耗情報を適用し, 磨耗部品を用いた製品の状態を予測する手法を提案する. そして, 計算結果からわかった磨耗部品を使用する際の指標を示す.

Reuse of mechanical parts is required to reduce the environmental load of the products. However, the unpredictable wear of the reused parts may increase the number of the defective products. This causes the difficulty of design when planning the product suitable for reuse. To reduce this difficulty, we propose a simulation method by integrating the wear information with tolerance analysis. The method calculates probability distribution of dimensions of worn parts based on the wear information of parts. The quality of assembled products can be predicted through the simulation. Experimental software is developed based on the method and results on an example of simple mechanism show its effectiveness. A strategy how worn parts should be used is also discussed based on the simulated results.