An analysis of a candidate control algorithm for a ride quality augmentation systemThis paper presents a detailed analysis of a candidate algorithm for a ride quality augmentation system. The algorithm consists of a full-state feedback control law based on optimal control output weighting, estimators for angle of attack and sideslip, and a maneuvering algorithm. The control law is shown to perform well by both frequency and time domain analysis. The rms vertical acceleration is reduced by about 40 percent over the whole mission flight envelope. The estimators for the angle of attack and sideslip avoid the often inaccurate or costly direct measurement of those angles. The maneuvering algorithm will allow the augmented airplane to respond to pilot inputs. The design characteristics and performance are documented by the closed-loop eigenvalues; rms levels of vertical, lateral, and longitudinal acceleration; and representative time histories and frequency response.
Document ID
19880027050
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Suikat, Reiner (Kansas Univ. Lawrence, KS, United States)
Donaldson, Kent (Kansas Univ. Lawrence, KS, United States)
Downing, David R. (Kansas, University Lawrence, United States)