系統頻譜分析於工具機上的應用

Application of the System Spectrum Analysis on Machine Tools

許登傑 ； 陳文瑞 ； 麥朝創 ； 蔡孟勳

《機械工業雜誌》 416期 (2017/11) Pp. 39-43

摘要

對於工具機的選擇與比較，一般而言多半以系統內各個主軸/伺服驅動器的額定轉速與額定扭力、加工空間、加工精度等等靜態指標做為比較依據，另一方面，若要描述工具機的動態加工能力，也通常會使用特徵工件的加工時間做為比較依據，然而因為不同加工機機構設計的差異，特徵工件的加工時間也未必能將不同工具機的動態行為一概而論，因此本文將傅立葉分析與頻譜分析等技術導入工具機，做為協助評測工具機能力、衡量工具機驅動器設定是否妥當之工具，並為工具機提供一個較為公正的動態指標，協助評估與比較工具機間的動態能力。

關鍵字

傅立葉轉換 ； 頻譜分析 ； 系統鑑別

並列摘要

As for choosing machine tools, one generally takes into account various static specifications such like spindle/servo rated speed and torque, workspace, and machining accuracy. Furthermore, for describing the machine ability, the working time on specific workpieces is usually measured. However, due to different mechanical designs of machine tools, it may not be able to completely depict the dynamic behavior through the specific workpiece. This paper introduces the concepts of Fourier analysis and spectrum analysis into the machine tool field. They are used as a tool to evaluate and test the ability of a machine tool and measure the suitability of the machine drive setting. Moreover, the paper gives a fair dynamic measuring specification for evaluating and comparing dynamic abilities between machine tools..

並列關鍵字

Fourier Transform ； Spectrum Analysis ； System Identification