Title :
A test evaluation of a Pilot-Induced-Oscillation prediction criterion
Author :
Liu, JiQuan ; Gao, ZHengHong
Author_Institution :
Nat. Key Lab. of Aerodynamics Design & Res., Northwestern Polytech. Univ., Xi´´an, China
Abstract :
This paper presents evaluation procedures, concepts, and results from a limited test to evaluate the ability of the Open-Loop Onset Point (OLOP) criterion to predict Pilot-Induced-Oscillations (PIO) in the presence of rate limiting. The OLOP criterion was developed by DLR. This paper examined the ability of OLOP to predict PIO on incorporating flight control systems with various rate limits imposed on the actuator. Two Pilot Models were examined for use with OLOP: the recommended pure gain model, and the Modified Neal-Smith model. Test pilots performed a handling qualities evaluation on each configuration using two tracking tasks. PIO ratings were compared with OLOP calculations for correlation. The results show positive correlation between OLOP and pilot ratings. The criterion was found to be useful. This paper presents recommendations on how OLOP might be applied as a design tool.
Keywords :
aerospace control; open loop systems; oscillations; OLOP calculation; OLOP criterion; PIO rating; actuator; flight control system; modified Neal-Smith model; open-loop onset point; pilot model; pilot-induced-oscillation prediction criterion; positive correlation; pure gain model; rate limit; test evaluation; Aircraft; Atmospheric modeling; Delay; Frequency response; Limiting; Stability criteria; Open-Loop Onset Point (OLOP) criterion; Pilot-Induced-Oscillations (PIO); flight control systems; handling qualities evaluation; pilot model;
Conference_Titel :
Signal Processing Systems (ICSPS), 2010 2nd International Conference on
Conference_Location :
Dalian
Print_ISBN :
978-1-4244-6892-8
Electronic_ISBN :
978-1-4244-6893-5
DOI :
10.1109/ICSPS.2010.5555726
