Citation:
Collu, M,; Patel, M. H.; Trarieux,; A Mathematical Model to Analyze the Static Stability of Hybrid (Aero-Hydrodynamically Supported) Vehicles. Royal Institution of Naval Architects - 8th Symposium on High Speed Marine Vehicles, HSMV 2008, pp. 148-161
Abstract:
Among the new concepts developed for high speed marine vehicles over the last
two decades, the "aerodynamic alleviation" approach consists in
using an aerodynamic surface to "alleviate" the weight sustained by
the hydrodynamic lift. Such vehicle experiences aerodynamic and hydrodynamic
forces of the same order of magnitude, therefore the dynamic models developed
for airborne and waterborne vehicles are not suitable. Considering a vehicle
having a high-speed prismatic planing hull and one or more aerodynamic surfaces,
the authors propose two mathematical methods. The first one calculates the
equilibrium attitude of the vehicle at a given speed and its numerical
implementation has been used to undertake a parametric analysis of the influence
of some configuration characteristics on performances. The second method
analyzes the static stability of the HV. Starting from the dynamic analysis
previously proposed by the authors, the characteristic polynomial of the HV
dynamics is derived and a static stability criterion is proposed.
