Naslov
Comparison of the technological time prediction models

Autori
Šimunović, Goran ; Balič, Jože ; Šarić, Tomislav ; Šimunović, Katica ; Lujić, Roberto ; Svalina, Ilija

Izvornik
Strojarstvo (0562-1887) 52 (2010), 2; 137-145

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
process planning; regression model; artificial intelligence; neural networks

Sažetak
The paper sets out to describe the results obtained by investigating the prediction of technological parameters and, indirectly, of technological time needed for seam tube polishing. The results of experimental investigations were used to define, analyse and compare two models. One is a mathematical i.e. statistical model obtained by the application of the least squares method and the least absolute deviation method. The other is a model based on the application of neural networks. To define the model based on the application of neural networks various structures of the back-propagation neural network with one hidden layer were analysed and the optimal one with the minimum RMS error was selected. The more precise predictions of technological time provided by the models supplement the previously defined manufacturing operations, replace the predictions based on the technologists' experience and form the basis on which to plan production and control delivery times. The work of technologists is thus made easier and the production preparation technological time shorter.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo

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