Plant/controller optimization by convex methods
Niewoehner, Robert Jay
MetadataShow full item record
This report presents results of a three phase effort to demonstrate the use of convex control design techniques in aeronautical applications. The first phase was the demonstration of a methodology by which classical aircraft controller design requirements could be translated into the weighting matrices for H infinity controller synthesis. The second phase extended that methodology to the design of mixed H2 / H infinity controllers. The third phase considered the problem of minimizing the size of aircraft control surfaces while meeting closed-loop dynamic performance requirements. Control sizing is a critical element in the design of Reduced Static Stability (RSS) aircraft. Inadequate control power places the vehicle in peril, while too much control power forfeits the benefits of RSS, resulting in poorer performance, increased weight, increased cost, increased drag, and increased observability. Non-heuristic methods have been required by which the physical configuration and the accompanying controller can be designed directly from the flying qualities specifications. The optimization of the surfaces should be done while searching over the set of all controllers which, together in closed-loop, satisfy the flying qualities requirements. This report presents a methodology which simultaneously optimizes both the physical configuration and the control system of a rigid body, using performance requirements which can be posed as Linear Matrix Inequalities
Approved for public release; distribution is unlimited
Showing items related by title, author, creator and subject.
Deering, Viviane; Grates, Patrick; Hedge, Tom; Kung, Sein; Martinez, Maria; Mcarthy, Percival; Pugh, Kevin; Radojkovic, Sasha (Monterey, California. Naval Postgraduate School, 2006-09); NPS-SE-06-002This project concentrates on implementing network centric military operations with specific threat engagement scenarios using legacy and future warfare systems based on open architecture concepts. These systems may be ...
Imvidhaya, Ming (Monterey, California: Naval Postgraduate School, 1990-09);Since VHDL is a DoD standard hardware description language, it is widely used in the design of logic circuits at different levels. VHDL can be used to do behavioral modeling which is desirable in top-down system design. A ...
Durham, Norman L. (Monterey, California. Naval Postgraduate School, 2009-06);The purpose of this thesis is to investigate Napoleon Bonaparte's command and control of the Grand Armee through the lens of organizational design. Napoleon's methodology behind the design of the Grand Armee is analyzed ...