Comparison of real-time flight load estimation methods

Fachgebiet:

Flugdynamik und Lasten

Jahr:

2013

Monat:

September

Art der Publikation:

Paper

Autoren:

M. Halle, F. Thielecke, Olaf Lindeanu

Buchtitel:

Deutscher Luft- und Raumfahrtkongress, Stuttgart 10. September - 12. Sept. 2013

Nowadays flight load exceedance monitoring is an important task to both: the aircraft manufacturer as well as the operator. The estimation of flight loads is required in several phases during development and operation of an aircraft. The requirements are usually different for e.g. calculation of design loads for certification and operational loads monitoring of stress and fatigue. The ability to determine aircraft operational loads (more) precisely may reduce the time in maintenance. Being able to detect critical load exceedance events during flight or in a post-process is also an enabler for e.g. loads/fatigue monitoring at operator level. In this paper, a novel system identification method named local model networks is applied to the field of flight loads estimation and compared to approaches based on artificial neural networks as found in the literature. The presented approach tries to overcome some limitations with respect to model creation, robustness, inter- and extrapolation.