521 ダイ加速度応答のウェーブレット解析に基づくタレットパンチプレスの工具摩耗状態監視(領域6 スマート構造・評価診断・動的計測) [in Japanese] 521 Tool-wear monitoring for a turret punch press machine based on wavelet analysis of die acceleration response [in Japanese]
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This study aims to develop a tool-wear condition monitoring system for a punching machine based on the wavelet analysis of the die acceleration responses during the punching process. In the proposed approach, the acceleration response of the die in a turret punch press was measured during a repetitive punching test and analyzed with wavelets whose mother wavelet was the third derivative of the Gaussian function. The signal concentration measure defined from the extrema of the wavelet transform was evaluated to extract the information relevant to the discontinuous event during the punching process which initiated the vibration responses of the die and other parts of the machine structure. Some signal processing issues regarding the wavelet scale selection and signal interpolation were particularly focused.
- Dynamics and Design Conference : D & D
Dynamics and Design Conference : D & D 2014, "521-1"-"521-8", 2014-08-25
The Japan Society of Mechanical Engineers