The Open-Loop Onset Point (OLOP) criterion has, for many years, been successfully used as a method to predict quasi-non-linear pilot-induced oscillations (PIOs) for fixed-wing aircraft. Only limited research has been conducted using the criterion for prediction of PIOs occurring in rotorcraft. This paper details a study to extend the application of OLOP to rotorcraft, using the combination of control inputs appropriate for the task and a suitable pilot model. Results are compared between pilot subjective opinion and OLOP predictions, from tests performed in a ground-based simulation facility. Using ‘task-specific’ application of OLOP, results obtained in the investigation are encouraging, whereby the objective predictions reflect subjective pilot assessment. From results obtained, a modified boundary is presented.
The use of the Open-Loop Onset Point (OLOP) to predict rotorcraft pilot-induced oscillations
CEAS Aeronaut J
CEAS Aeronautical Journal ; 11 , 3 ; 693-711
2020-09-01
19 pages
Article (Journal)
Electronic Resource
English
THE USE OF THE OPEN-LOOP ONSET POINT (OLOP) TO PREDICT ROTORCRAFT PILOT-INDUCED OSCILLATIONS
British Library Conference Proceedings | 2019
|Application of Pilot Induced Oscillations Prediction Criteria to Rotorcraft
British Library Conference Proceedings | 2011
|New Insights Into Pilot Behaviour During Hazardous Rotorcraft Pilot Induced Oscillations
British Library Conference Proceedings | 2006
|MATHEMATICAL STUDY OF LINEAR AND NONLINEAR ROTORCRAFT PILOT-INDUCED OSCILLATIONS
British Library Conference Proceedings | 2010
|