Application of artificial neural networks to determination of bending parameters of construction profiles

Application of artificial neural networks to determination of bending parameters of construction profiles

Paweł Litwin, Feliks Stachowicz

Politechnika Rzeszowska, Wydział Budowy Maszyn i Lotnictwa.

DOI:

https://doi.org/10.7494/cmms.2003.2.0038

Abstract:

Determination of the bending moment and springback coefficient of thin-walled steel and aluminium alloy profiles, as a function of the bending curvature, was the main objective of the work. The time consuming process of determination of distortion of cross section, which affects bending process of thin wall products, was eliminated. This objective was achieved by an application of the artificial neural networks. Multi-layer Perceptron (MLP) was trained using measured process data of profile bending. The MLP had profile geometry and mechanical parameters of material as input, and bending moment as well as spring-back coefficient as output. It was confirmed that this system is a valid alternative for the quick responsible method of main bending parameters determination.

Cite as:

Litwin, P., Stachowicz, F. (2003). Application of artificial neural networks to determination of bending parameters of construction profiles. Computer Methods in Materials Science, 3(2), 79 – 85. https://doi.org/10.7494/cmms.2003.2.0038

Article (PDF):

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References:

Al-Qureshi, H.A. (1999). Elastic—plastic analysis of tube bending. /nr. J. Machine Tools and Manufacturing, 39, 87-104.

Endow, J., Murota, T. (1984). On the flattering of cross-section of circular tubes in uniform bending. Adv. Technol. Plasticity, 1, 285-290.

Hertz, J., Krogh, A., Palmer, R.G. (1995). Wstep do teorii obliczeń neuronowych. WNT, Warszawa 1995.

Lin, J.C., Tai, C.C. (1999). The application of neural network in the prediction of spring-back in an L-shaped bend. Jnt. J. Adv. Manufact. Technol., 15, 163-170.

Litwin, P., Stachowicz, F. (1999). Artificial intelligence identification of profile bending parameters. Conf: Proc. Technology’99, Bratislava, 351-355.

Reid, S.R., Yu, T.X., Yang, J.L. (1994). Hardening — softening behavior of circular pipes behaviour of circular pipes under bending and tension. /nt. J. Mech. Sci., 36, 1073-1085.

Stachowicz, F. (1990). Moment gnący i sprezynowanie po gięciu profili skrzynkowych ze stopu PA38 — z uwzględnieniem zniekształcenia przekroju. Rudy Metale, 34, 115-120.

Statistica Neural Networks. (1999). Addendum for version 4. Statsoft, Tulsa.

Swiatkowski, K., Stachowicz, F. (1984). Analysis of the cross-sectional deformation of box profiles subjected to bending. J. Mech. Work. Technol., 10, 103-116.

Yu, T.X., Teh, L.S. (1997). Large plastic deformation of beams of angle-section under symmetric bending. Int. J. Mech. Sci., 39, 829-239.