Title page for ETD etd-04062006-231844
|Type of Document
||Cooper, Jared K
|Author's Email Address
||Modeliing of a Small-Scale Remote Controllable Helicopter for Simulation and Control Development
||Master of Science
|Reinholtz, Charles F.
|Wicks, Alfred L.
|Woolsey, Craig A.
|Date of Defense
The Virginia Polytechnic Institute and State University has recently expanded its
unmanned and autonomous systems research to include aerial vehicles. In the summer of
2004, members of the Autonomous Aerial Vehicle Team at Virginia Tech successfully
competed in the Student UAV competition and the International Aerial Robotics
Competition. The AAVT entered a fixed-wing vehicle in the former and a rotary-wing
craft in the latter competition. Commercial flight controllers were used in both
competitions in order to familiarize team members with this technology.
The next step in research at VT focuses on developing an experimental rotorcraft platform to be used for
control algorithm testing and development.
Before the development of a flight control system is possible, a physical plant or model
accurately describing the dynamics of the system is required. Use of the model in a
virtual simulation environment is also beneficial to tune control gains and analyze
robustness of the closed-loop system. The work presented focuses on developing a 6
degree-of-freedom model of a small-scale single shaft rotorcraft. The particular platform
being developed is the Bergen Industrial Twin. In addition to dynamical concerns,
attention is paid to performance characteristics of the aircraft. The nonlinear system of
equations is solved which can be utilized in a simulated environment. Linear models are
extracted and their control and stability characteristics are analyzed. Finally, the
methodology is explained for obtaining models through system identification techniques
using the CIFER facility.
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