Work

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

Year: 2001

Type: article

Abstract: Two methods for control system reconfiguration have been investigated. The first method is a robust servomechanism control approach (optimal tracking problem) that is a generalization of the classical proportional-plus-integral control to multiple input-multiple output systems. The second method is a control-allocation approach based on a quadratic programming formulation. A globally convergent fixed-point iteration algorithm has been developed to make onboard implementation of this method feasible. These methods have been applied to reconfigurable entry flight control design for the X-33 vehicle. Examples presented demonstrate simultaneous tracking of angle-of-attack and roll angle commands during failures of the fight body flap actuator. Although simulations demonstrate success of the first method in most cases, the control-allocation method appears to provide uniformly better performance in all cases.

Source: Journal of Guidance Control and Dynamics

DOI: 10.2514/2.4769

Authors: John J. Burken, Ping Lu, Zhenglu Wu, Cathy Bahm

Institutions: Armstrong Flight Research Center, Iowa State University

Language: English

Topic: Adaptive Control of Nonlinear Systems

Subfield: Control and Systems Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: green

Funders: National Aeronautics and Space Administration, Iowa State University

OpenAlex ID: W2064591510