Loading...

A new method to control heat and mass transfer to work piece in a GMAW process

Mousavi Anzehaee, M ; Sharif University of Technology | 2012

811 Viewed
  1. Type of Document: Article
  2. DOI: 10.1016/j.jprocont.2012.04.004
  3. Publisher: 2012
  4. Abstract:
  5. It is proposed to employ melting rate, heat input, and detaching droplet diameter as controlled variables to control heat and mass transfer to work piece in a gas metal arc welding process. A two-layer architecture with cascade configuration of PI and MPC controllers is implemented to incorporate existing constraints on the process variables, improve transient behavior of the closed-loop responses and reduce interaction level. Computer simulation results are presented to indicate usefulness of the proposed controlled variables selection and applying two-layer control architecture to control heat and mass transfer to work piece
  6. Keywords:
  7. Detaching droplet diameter ; GMAW process ; Melting rate ; PI ; Two-layer control architecture ; Control architecture ; Droplet diameters ; Heat input ; Melting rates ; MPC ; Closed loop control systems ; Computer simulation ; Drops ; Gas metal arc welding ; Heat transfer ; Metal melting ; Model predictive control ; Polyimides ; Mass transfer
  8. Source: Journal of Process Control ; Volume 22, Issue 6 , 2012 , Pages 1087-1102 ; 09591524 (ISSN)
  9. URL: http://www.sciencedirect.com/science/article/pii/S0959152412000893