In response to a request for a dynamic analysis of an underwater vehicle design, NCSL conducted an investigation of the Gibson's Towed Profiling System (GTOPS) vehicle. The vehicle consisted of two like bodies joined by a wing and tail appendages. The configuration of the bodies was set, but the size and configuration of the appendages were subject to change. The vehicle was sized and analyzed to determine longitudinal and lateral stability. The analysis included the effects of geometric changes, tow cable considerations, twin fuselage interference drag, the effects of depth-keeping tethers, horizontal tail actuator sizing, and time domain dynamic vehicle response. Geometric variations of the twin-hulled hydrodynamic vehicle which were investigated included: the effects of wing position, horizontal and vertical tail size and shape, vehicle center of gravity and center of buoyancy separation, body-body separation distance, body shape, and speed variations from 2 to 12 knots. Root locus diagrams are presented for selected geometric variations, and time history trajectories are included for various tether tensions and control surface inputs.
Hydrodynamic Stability and Control Analysis of GTOPS Vehicle
1978
40 pages
Report
Keine Angabe
Englisch
Marine Engineering , Underwater vehicles , Towed vehicles , Hydrodynamic configurations , Underwater trajectories , Stability , Pitch(Motion) , Roll , Dynamic response , Hulls(Marine) , Wings , Hydrodynamic control surfaces , Center of gravity , Buoyancy , Drag , Tethering , GTOPS(Gibsons Towed Profiling System) , Gibsons Towed Profiling System , Twin hulled underwater vehicles
Crew Module Hydrodynamic Stability Analysis and Simulation
British Library Conference Proceedings | 2009
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