한국정밀공학회지 (Journal of the Korean Society for Precision Engineering)
- 제14권11호
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- Pages.93-101
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- 1997
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- 1225-9071(pISSN)
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- 2287-8769(eISSN)
엔드밀가공시 복합계측 신호를 이용한 공구 마멸의 카오스적 해석
Chaotic analysis of tool wear using multi-sensor signal in end-milling process
초록
Ever since the nonlinearity of machine tool dynamics was established, researchers attempted to make use of this fact to devise better monitoring, diagnostics and control system, which were hitherto based on linear models. Theory of chaos which explains many nonlinear phenomena comes handy for furthering the analysis using nonlinear model. In this study, measuring system will be constructed using multi-sensor (Tool Dynamometer, Acoustic Emission) in end milling process. Then, it will be verified that cutting force is low-dimensional chaos by calculating Lyapunov exponents. Fractal dimension, embedding dimension. And it will be investigated that the relation between characteristic parameter calculated from sensor signal and tool wear.
키워드