Designing a feedback control algorithm for the tube hydroforming process

Benny Ørtoft Endelt, Ming Cheng, Shihong Zhang, Karl Brian Nielsen

Publikation: Bidrag til bog/antologi/rapport/konference proceedingKonferenceartikel i proceedingForskningpeer review

Abstrakt

Tube hydroforming has a broad industrial appeal as the process enables production of geometrically complex parts within a single forming operation. The process is highly flexible with respect to adjustable process parameters (in the present context trajectories for the internal pressure and axial feeding). The objective of the present work is to identify a suitable and representative set of state variables and to develop a feedback algorithm enabling online control of material flow throughout the part using only limited/local information regarding the filling of the tool cavity. The filling of the tool is controlled by the internal pressure and the axial material feeding, and the proposed system operates with a constant axial feeding trajectory and controls the internal pressure based on the filling of the tool geometry. The methodology proves to be stable and flexible with respect to the dynamic behavior of the system and the numerical tests show that it is possible to control the quality and plastic deformation of the tube. Numerical simulations show that the control system can eliminate both rupture and irreversible wrinkling - which are the two major failure modes in tube hydroforming.

OriginalsprogEngelsk
TitelThe 11th International Conference on Numerical Methods in Industrial Forming Processes: Numiform 2013. AIP Conference Proceedings
Vol/bind1532
ForlagAIP Conference Proceedings
Publikationsdato2013
Sider269-278
DOI
StatusUdgivet - 2013
BegivenhedAIP Conference Proceedings - Shenyang, Kina
Varighed: 6 jul. 201310 jul. 2013

Konference

KonferenceAIP Conference Proceedings
Land/OmrådeKina
ByShenyang
Periode06/07/201310/07/2013
NavnAIP Conference Proceedings
Vol/bind1532
ISSN0094-243X

Emneord

  • Control systems, Flow control, High pressure, Plasticity, Process monitoring and control

Citationsformater