工作機械壁面熱伝達率の推定 : 第2報, 複数面の熱伝達率の推定

概要

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In the analysis of thermal deformation of a machine tool, the exact value of heat transfer coefficient on the machine tool surface is required. But it is very difficult to measure exactly the heat transfer coefficient by conventional method. This paper presents a new approach to identify the heat transfer coefficients by using temperature change measured on machine tool surfaces during a short period in its operating. In the presented method, the optimization process is divided into two stages; first, an average heat transfer coefficient and the strength of internal heat sources are estimated by using a conventional optimizing program, and second, the values of individual heat transfer coefficients on surfaces are estimated by using the method of least squares based on the singular value decomposition. Some experimental results obtained with simple model of spindle head have verified the effectiveness of the present method.
一般社団法人日本機械学会の論文
1998-10-25