Weighting Matrices and Control Allocation

2005 ◽  
pp. 396-409
Keyword(s):  
Control Allocation ◽  
And Control

Modeling and control allocation for ship berthing system design

ICCAS 2010 ◽  
2010 ◽  
Author(s):  
Van Phuoc Bui ◽  
Jeong Soon Jeong ◽  
Dong Seok Lee ◽  
Young Bok Kim ◽  
Kwon Soon Lee
Keyword(s):  
System Design ◽  
Control Allocation ◽  
Modeling And Control ◽  
And Control ◽  
Ship Berthing

scholarly journals A Novel Control Allocation Method for Yaw Control of Tailless Aircraft

Aerospace ◽  
2020 ◽  
Vol 7 (10) ◽  
pp. 150
Author(s):  
Thomas R. Shearwood ◽  
Mostafa R. A. Nabawy ◽  
William J. Crowther ◽  
Clyde Warsop
Keyword(s):  
Control Allocation ◽  
Rolling Moment ◽  
Aerodynamic Efficiency ◽  
Yaw Control ◽  
Induced Drag ◽  
Minimum Drag ◽  
Allocation Method ◽  
Control Authority ◽  
And Control ◽  
Tailless Aircraft

Tailless aircraft without vertical stabilisers typically use drag effectors in the form of spoilers or split flaps to generate control moments in yaw. This paper introduces a novel control allocation method by which full three-axis control authority can be achieved by the use of conventional lift effectors only, which reduces system complexity and control deflection required to achieve a given yawing moment. The proposed method is based on synthesis of control allocation modes that generate asymmetric profile and lift induced drag whilst maintaining the lift, pitching moment and rolling moment at the trim state. The method uses low order models for aerodynamic behaviour characterisation based on thin aerofoil theory, lifting surface methodology and ESDU datasheets and is applied to trapezoidal wings of varying sweep and taper. Control allocation modes are derived using the zero-sets of surrogate models for the characterised aerodynamic behaviours. Results are presented in the form of control allocations for a range of trimmed sideslip angles up to 10 degrees optimised for either maximum aerodynamic efficiency (minimum drag for a specific yawing moment) or minimum aggregate control deflection (as a surrogate observability metric). Outcomes for the two optimisation objectives are correlated in that minimum deflection solutions are always consistent with efficient ones. A configuration with conventional drag effector is used as a reference baseline. It is shown that, through appropriate allocation of lift based control effectors, a given yawing moment can be produced with up to a factor of eight less aggregate control deflection and up to 30% less overall drag compared to use of a conventional drag effector.

Joint Motion Control and Control Allocation Design for UAS Flight Control Systems

2011 ◽  
Author(s):  
Tristan Perez ◽  
Alejandro Donaire ◽  
Pierre De Lamberterie ◽  
Brendan Williams
Keyword(s):  
Control Systems ◽  
Motion Control ◽  
Flight Control ◽  
Control Allocation ◽  
Joint Motion ◽  
And Control

scholarly journals Two Reconfigurable Flight-Control Design Methods: Robust Servomechanism and Control Allocation

2001 ◽  
Vol 24 (3) ◽  
pp. 482-493 ◽  
Author(s):  
John J. Burken ◽  
Ping Lu ◽  
Zhenglu Wu ◽  
Cathy Bahm
Keyword(s):  
Flight Control ◽  
Control Design ◽  
Design Methods ◽  
Control Allocation ◽  
And Control
Sign in / Sign up

Export Citation Format

Share Document