713 柔軟懸架式に基づく低剛性構造物の高精度剛体特性同定法の開発

概要

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Accurate rigid body property (RBP) identification is desired in various industrial fields such as aerospace and automotive engineering. In a past study, our group developed a new identification method based on a gravity-dependent suspension model using multiple elastic wires. The identification method enables to obtain the RBP of mechanical structures with high accuracy. However, the problem of measuring errors due to the elastic modes of mechanical structures still remains in this method. In this research, in order to accurately identify the RBP of low-rigidity structures, new two methods which combine the suspension model and modal analysis of the elastic modes are developed from the previous one. These methods are classified into two groups of least-squares optimization models, the "Single-step Solution Gravity-dependent Suspension Model" and the "Modal-step Solution Gravity-dependent Suspension Model". The validity of each model is confirmed by conducting experiments using low-rigidity structures.
一般社団法人日本機械学会の論文
2011-09-05