Control authority assessment in aircraft conceptual design
All aircraft must meet controllability requirements to be certified for commercial use or adopted by the mi1itary. Aircraft maneuverability is often 1imited by control authority. Thus, it is essential for designers to evaluate a candidate concept's control authority early in the conceptual desi...
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| Other Authors: | |
| Format: | Others |
| Language: | en |
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Virginia Tech
2014
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| Online Access: | http://hdl.handle.net/10919/41767 http://scholar.lib.vt.edu/theses/available/etd-03242009-040703/ |
| Summary: | All aircraft must meet controllability
requirements to be
certified for commercial use or adopted by the mi1itary.
Aircraft maneuverability is often 1imited by control
authority. Thus, it is essential for designers to evaluate a
candidate concept's control authority early in the conceptual
design phase. In this thesis, a methodology for rapid control
power evaluation of preliminary design configurations against
requirements at the key flight conditions is established.
<p>
First, a collection of critical flight conditions to be
considered using this methodology is identified. To examine
a variety of aircraft configurations and accelerate the
process of estimating stability and control derivatives, a
FORTRAN program using the Vortex-Lattice Method was written to
estimate subsonic, low angle-of-attack aerodynamics. Then, a
spreadsheet processes the aerodynamic data to check whether
the design configuration possesses adequate control power to
satisfy the requirements of the critical flight conditions. === Master of Science |
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