Michael Naderhirn, Luigi del Re,
"Adaptive High Precision Temperature Control of a Thermo-Mechanical Test Bench"
: 2005 Summer Heat Transfer Conference, Nummer HT2005-72492, 7-2005
Original Titel:
Adaptive High Precision Temperature Control of a Thermo-Mechanical Test Bench
Sprache des Titels:
Englisch
Original Buchtitel:
2005 Summer Heat Transfer Conference
Original Kurzfassung:
Material testing is an essential element in the technological development of airplane turbines. The blades are subject to very high stresses, both thermal and mechanical. To assess material suitability, thermo-mechanical test benches are used where a typical thermo-mechanical load is applied to the test rigs. The sensitivity of the fatigue assessment is very high which requires a very high control precision over a large
temperature range and a fast adaptation to different setups.
This paper discusses two approaches where the first is a self tuning inverse control loop. The second approach is a data based control method where identification routines are used to dynamically compute the approximated system inverse and use this information to automatically tune the control system for saw-tooth profiles. It is shown that a simple two-zone thermal model describes the behavior of the probe and is then used to derive the inverse model and a control strategy. Finally experimental results of a typical test cycle are presented.
Sprache der Kurzfassung:
Englisch
Number:
HT2005-72492
Erscheinungsmonat:
7
Erscheinungsjahr:
2005
Anzahl der Seiten:
7
Notiz zur Publikation:
2005 Summer Heat Transfer Conference July 17-22, 2005, San Francisco, California, USA