Design of a digital ride quality augmentation system for a commuter aircraftCommuter aircraft with low wing loading that operate at low altitudes are particularly susceptible to unwanted accelerations caused by atmospheric gusts. This paper describes the design and analysis of a longitudinal digital Ride Quality Augmentation System (RQAS). The RQAS designs were conducted for a Cessna 402B aircraft using the flaps and the elevator as the control surfaces. The designs are generated using linear quadratic Gaussian theory and analyzed in both the time and frequency domains. Nominal designs are presented at five flight conditions that cover a total mission. Trade-off studies are conducted to investigate the effect of sample time, computational delay time, servo bandwidth and control power.
Document ID
19840060699
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Hammond, T. A. (U.S. Air Force Academy Colorado Springs, CO, United States)
Downing, D. R. (Air Force Academy CO, United States)
Amin, S. P. (Air Force Academy CO, United States)
Paduano, J. (Kansas, University Lawrence, KS, United States)