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Accuracy of a domain decomposition method for the recovering of discontinuous heat sources in metal sheet cutting

By C.-H. Lai, C.S. Ierotheou, C.J. Palansuriya, K.A. Pericleous, M.S. Espedal and X.-C. Tai


This paper describes a method for the retrieval of discontinuous heat sources involved in a metal cutting process. Two smoothing techniques were used in the present study in order to smooth noisy sensor data recorded by temperature sensors. The two smoothing techniques are a least squares polynomial fit and a Lagrangian smoothing. These data are then used to recover the heat source. It is found that the least squares polynomial provides over-smoothed results and the Lagrangian smoothing produces phyically acceptable results of the retrieved heat source

Topics: QA
Publisher: Springer Verlag
Year: 1999
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