Dimensional Compensation in Stern Tube Bushes Machining

Abstract:

Among the manufacturing operations required to be realized into the shipbuilding domain, stern tube bushes machining is one of the most sensible, because it has a high influence onto the good functioning of the ship propulsion system in time. On one hand, problems may appear, because we are talking about parts with very large dimensions, which are finally machined after their assembly, by welding, on the ship hull. On the other hand, additional dimensional deviations may occur, caused by ship body thermal or mechanical induced deformations. Both these deviations can be simultaneously compensated, at least in part, by using a dimensional control system of the machining process, which is programmed to generate a surface (different from the target inner surface of the bushes) that only after its machining and inherent deformation becomes cylindrical and coaxial to the propeller line. In this paper, we present solutions based on linear regression or on neural networks for finding the model of dimensional deviation of the real surface relative the target surface.

• Periodical: Applied Mechanics and Materials (Volume 332)
• Pages: 449-454
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.332.449
• Online since: July 2013
• Authors: Gabriel Radu Frumuşanu, Alexandru Epureanu
• Keywords: Boring, Dimensional Deviation Compensation, Errors Modeling, Stern Tube Bushes

References

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DOI: 10.1007/978-3-540-88445-3

[5] L. Vasiliu, A. Epureanu, G. Frumuşanu, V. Marinescu: Increasing of the Stern Tube Bushes Precision by On-Line Adaptive Control of the Cutting Process, Proceedings of The 5th International Conference on Dynamical Systems and Control, CONTROL'09, La Laguna, Spain, vol. Mathematical Methods, System Theory and Control, pp.102-106 (2009).

[6] L. Vasiliu, A. Epureanu, G. Frumusanu: The adaptive control of ship stern tube bushes manufacturing process, The Annals Of "Dunarea De Jos" University Of Galati Fascicle V, Technologies in Machine Building, ISSN 1221-4566, pp.411-414 (2009).

DOI: 10.54684/ijmmt.2022.14.3.62

[7] L. Vasiliu, A. Epureanu, G. Frumusanu: Some possibilities for stern-tube bushes inner surfaces machining with dimensional adaptive control, Proceedings of the 14th International Conference ModTech, Slănic Moldova, pp.663-666 (2010).