Multiple Regressive Analysis of Skillful Polishing Operation of Aircraft Wings

Abstract

Polishing operation of metal surface of industrial product with high quality needs skillful working. This paper shows several conditions for skillful polish of wings of an aircraft. A motion capture system from multiple cameras measures movements of some workers, i.e. master, senior, junior and Novice, who have different skill for polishing the wings. Several expert workers present 9 conditions explaining a skillful polishing operation. We can find three important conditions by a multiple linear regressive analysis of the movements of polishing workers, i.e. (1) synchronized movements of both arms, (2) forearm bending with 45^° to upper arm, (3) smooth movements. According to the three conditions, we can evaluate skill of worker polishing wings.