ENERGY MODEL BASED CONTROL FOR FORMING PROCESSES

Patrick Girard, Vincent Thomson

Abstract

Thermoforming consists of shaping a plastic material by deforming it at an adequate deformation rate and temperature. It often exhibits abrupt switches between stable and unstable material behaviour that have neither been identified nor controlled up to now. PID control, although adequate for simple parts, has not been able to control very well the forming of complex parts and parts made of newer materials. In this paper, the state parameters that allow the development of predictive models for the forming process and the construction of control systems are identified. A robust, model based control system capable of in-cycle control is presented. It is based on a simulator continuously tuned and supported in real time by intelligent agents that incorporate diagnostic capabilities.

References

  1. Ajersch, M., 2004. Modeling and real-time control of sheet reheat phase in thermoforming. Master's thesis, Department of Electrical Engineering, McGill University.
  2. Albadawi, Z., Boulet, B., DiRaddo, R., Girard, P., Rail, A. and Thomson, V., 2006. Agent-based control of manufacturing processes. Int. J. Manufacturing Research, 1(4) 466-481.
  3. Bahadoran, 2005. Online characterization of viscoelastic and stress-relaxation behavior in thermoforming. Master's thesis, Department of Mechanical Engineering, McGill University.
  4. Florez-Mendez, R., 1999. Toward a standardization of multi-agent system frameworks. ACM Crossroad, 5(4), 18-24.
  5. Gauthier, G., Ajersch, M., Boulet, B., Haurani, A., Girard, P., DiRaddo, R., 2005. A New Absorption Based Model for Sheet Reheat in Thermoforming, SPE Annual Technical Conference, ANTEC, Boston, Massachusetts.
  6. Girard, P., Thomson, V., Boulet, B., DiRaddo, R.W., 2005. Advanced in-cycle and cycle-to-cycle on-line adaptive control for thermoforming of large thermoplastic sheets. SAE World Congress, Detroit, MI, USA.
  7. Kumar, V., 2005. Estimation of absorptivity and heat flux at the reheat phase of thermoforming process. Master's thesis, Department of Mechanical Engineering, McGill University.
  8. Mir, H., Benrabah, B., Thibault, F., 2007. The use of elasto-visco-plastic material model coupled with pressure-volume thermodynamic relationship to simulate the stretch blow molding of polyethylene terephthalate, Numiform, Porto, Portugal.
  9. Weiss, G., 1999. Multiagent systems, MIT Press, Cambridge, USA.
  10. Zhang, Y., 2004. Generation of component libraries for the thermoforming process using on-line characterization. Master's thesis, Department of Mechanical Engineering, McGill University.
Download


Paper Citation


in Harvard Style

Girard P. and Thomson V. (2008). ENERGY MODEL BASED CONTROL FOR FORMING PROCESSES . In Proceedings of the Fifth International Conference on Informatics in Control, Automation and Robotics - Volume 1: ICINCO, ISBN 978-989-8111-30-2, pages 51-59. DOI: 10.5220/0001499300510059


in Bibtex Style

@conference{icinco08,
author={Patrick Girard and Vincent Thomson},
title={ENERGY MODEL BASED CONTROL FOR FORMING PROCESSES},
booktitle={Proceedings of the Fifth International Conference on Informatics in Control, Automation and Robotics - Volume 1: ICINCO,},
year={2008},
pages={51-59},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0001499300510059},
isbn={978-989-8111-30-2},
}


in EndNote Style

TY - CONF
JO - Proceedings of the Fifth International Conference on Informatics in Control, Automation and Robotics - Volume 1: ICINCO,
TI - ENERGY MODEL BASED CONTROL FOR FORMING PROCESSES
SN - 978-989-8111-30-2
AU - Girard P.
AU - Thomson V.
PY - 2008
SP - 51
EP - 59
DO - 10.5220/0001499300510059