3012 畳込み積分を利用した工作機械の熱変形推定(OS-3 生産の高度化技術)

概要

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A new method is presented to estimate thermal deformation of machine tools by utilizing convolution integral. The main spindle rotation, which is considered to be the biggest heat source, is considered in the present report. Transfer functions between the thermal displacements and the heat generating factors, i.e. rotational speed, primary motor current and secondary motor current, are identified by the so called impulse response method. The thermal displacements are estimated by applying the convolution integral and the identified transfer functions while the spindle runs at various speeds. The estimated displacements are in good agreement with measured ones, and thus the machining error due to the thermal displacements are expected to be reduced by the proposed method.
一般社団法人日本機械学会の論文
2001-03-22