Integrating fly-by-light/power-by-wire flight control systems on transport aircraft

2002 ◽  
Author(s):  
J.R. Todd ◽  
J.A. Hay ◽  
T. Dinh
Keyword(s):  
Control Systems ◽  
Flight Control ◽  
Light Power ◽  
Transport Aircraft

Design and Evaluation of Flight Control Systems

1974 ◽  
Vol 188 (1) ◽  
pp. 89-96
Author(s):  
F. R. Gill
Keyword(s):  
Control Systems ◽  
Flight Control ◽  
Optimization Technique ◽  
Gain Control ◽  
Linear Control ◽  
Control Policies ◽  
Transport Aircraft ◽  
Variable Gain ◽  
Performance Requirements ◽  
Glide Path

Studies at the Royal Aircraft Establishment are aimed at the in-flight demonstration of improved control systems and policies in a fighter-attack and/or a transport aircraft. The systems being flight evaluated at the present time employ conventional linear-control policies, the design being based on a parameter-optimization technique. Two important modes are discussed briefly in the paper: a pitch-rate manoeuvre-demand system for the fighter-attack aircraft and an ILS glide path and flare system for the transport aircraft. The design studies of these and other modes have yielded quantitative data on conflicts between different performance requirements which cannot be avoided when linear-control policies are used. Studies are being made therefore to replace linear control by variable-gain policies in selected parts of the control system in order to reduce the extent of these conflicts. The reasons for and principles of the variable-gain control policies are outlined in the paper; in addition certain system improvements are discussed (e.g. trim problems) which result from the application of these non-linear control policies.

Airworthiness aspects of new technologies: Interaction between aircraft structural dynamics and control systems

1998 ◽  
Vol 212 (5) ◽  
pp. 309-317 ◽  
Author(s):  
M Hockenhull
Keyword(s):  
Control Systems ◽  
Structural Dynamics ◽  
Flight Control ◽  
Closed Loop ◽  
New Technologies ◽  
Loop Control ◽  
Transport Aircraft ◽  
Control Load ◽  
Dynamics And Control ◽  
And Control

The application of electrical flight control systems to civil transport aircraft has directed attention to the need for improved airworthiness regulation. In this paper, the scope and interpretation of a new FAR/JAR Part 25 regulation in preparation is discussed, applicable to aircraft that have closed-loop control systems for flight control, load alleviation or stability augmentation, and have the potential to interact with the aircraft's structural dynamics.

Sign in / Sign up

Export Citation Format

Share Document