TY - GEN
T1 - The prediction of PIO susceptibility of a large transport aircraft
AU - Liu, Ji Quan
AU - Gao, Zheng Hong
PY - 2010
Y1 - 2010
N2 - Flight control system design for large, fly-by-wire aircraft is aimed at providing optimal handling qualities for all mission tasks that the aircraft has to fulfill. Pilot-Induced Oscillations (PIO) are handling qualities deficiencies that are highly undesirable, and have a tendency to show up unexpectedly during developmental flight-testing. Numerous design criteria have been developed that provide guidelines in the design process that should help avoid PIO tendencies of an aircraft. Recently, several category II PIO criteria that specifically deal with nonlinearities such as rate and position limiting in the flight control system have been proposed. In this paper, these methods are appraised against an example aircraft that has experienced well-documented category II PIOs. Furthermore, two methods are examined that can help reduce PIO susceptibility. The application of a PIO suppression filter, and of phase compensation in software rate limiting elements are evaluated. The effectiveness of both methods is examined. The ideas behind some of the category II PIO criteria prove to be useful in this application.
AB - Flight control system design for large, fly-by-wire aircraft is aimed at providing optimal handling qualities for all mission tasks that the aircraft has to fulfill. Pilot-Induced Oscillations (PIO) are handling qualities deficiencies that are highly undesirable, and have a tendency to show up unexpectedly during developmental flight-testing. Numerous design criteria have been developed that provide guidelines in the design process that should help avoid PIO tendencies of an aircraft. Recently, several category II PIO criteria that specifically deal with nonlinearities such as rate and position limiting in the flight control system have been proposed. In this paper, these methods are appraised against an example aircraft that has experienced well-documented category II PIOs. Furthermore, two methods are examined that can help reduce PIO susceptibility. The application of a PIO suppression filter, and of phase compensation in software rate limiting elements are evaluated. The effectiveness of both methods is examined. The ideas behind some of the category II PIO criteria prove to be useful in this application.
KW - Category II PIO
KW - Flight control system
KW - Phase compensation
KW - Pilot-Induced Oscillations
KW - Rate limiting elements
UR - http://www.scopus.com/inward/record.url?scp=77957273061&partnerID=8YFLogxK
U2 - 10.1109/ICSPS.2010.5555735
DO - 10.1109/ICSPS.2010.5555735
M3 - 会议稿件
AN - SCOPUS:77957273061
SN - 9781424468911
T3 - ICSPS 2010 - Proceedings of the 2010 2nd International Conference on Signal Processing Systems
SP - V3472-V3477
BT - ICSPS 2010 - Proceedings of the 2010 2nd International Conference on Signal Processing Systems
T2 - 2010 2nd International Conference on Signal Processing Systems, ICSPS 2010
Y2 - 5 July 2010 through 7 July 2010
ER -