This study deals with the elastodynamic modeling of a laser cutting machine and illustrates the guidelines followed for the design optimization of the machine’s basic structure from the dynamic behavior point of view. A finite element model was set up along with the conceptual design of the new machine, with the aim of performing dynamic simulations. The main purpose is to predict the vibrations arising in the structure that could significantly deteriorate the product quality in order to evaluate different design solutions. The vibrations can be excited by variable forces acting on the moving masses and by the oscillations affecting the machine basement due to external causes. The original modeling of the excitations is presented herein. Modal analysis and forced simulations were performed on the finite element model of the first conceptual design of the machine structure. The analysis of the results indicated some critical parts of the system to be stiffened in order to mitigate the vibrations, that is to improve the cutting quality. Structural modifications to the first conceptual design were therefore suggested and a new model of the machine was developed and simulated. The results of the simulations before and after the design modifications are reported and discussed.
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ASME 2008 9th Biennial Conference on Engineering Systems Design and Analysis
July 7–9, 2008
Haifa, Israel
Conference Sponsors:
- International
ISBN:
978-0-7918-4836-4
PROCEEDINGS PAPER
Design Optimization of a Laser Cutting Machine by Elastodynamic Modeling Available to Purchase
Marco Troncossi,
Marco Troncossi
University of Bologna, Bologna, Italy
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Enrico Troiani,
Enrico Troiani
University of Bologna, Bologna, Italy
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Alessandro Rivola
Alessandro Rivola
University of Bologna, Bologna, Italy
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Marco Troncossi
University of Bologna, Bologna, Italy
Enrico Troiani
University of Bologna, Bologna, Italy
Alessandro Rivola
University of Bologna, Bologna, Italy
Paper No:
ESDA2008-59166, pp. 551-559; 9 pages
Published Online:
July 6, 2009
Citation
Troncossi, M, Troiani, E, & Rivola, A. "Design Optimization of a Laser Cutting Machine by Elastodynamic Modeling." Proceedings of the ASME 2008 9th Biennial Conference on Engineering Systems Design and Analysis. Volume 2: Automotive Systems; Bioengineering and Biomedical Technology; Computational Mechanics; Controls; Dynamical Systems. Haifa, Israel. July 7–9, 2008. pp. 551-559. ASME. https://doi.org/10.1115/ESDA2008-59166
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