AGORA

THE DYNAMIC STABILITY
Intellectual property nº A-2910
PERFORMANCE MARINE VEHICLE
see our official web page www.aguiladesign.com


The internal dynamics represent the organization of all forces, internal as well as external,
that influence the vehicles: the creative control of the horizonal and vertical gravity forces, in het eigentijdspunt in het interaktie tussen en in de materie van stabiliteit in beweging
.

The designers J.W. Griffites en A. J. Gielens, both in their own period, 19th en 21st century, create "The Rainbow" and "Breaking", the most revolutionary and fastest marine craft of their time.

SHARK - THE INTERNAL DYNAMICS

- WORKING PRINCIPLE

- INTERNAL DYNAMICS

- DIRECTION

- ANALYTICAL STUDIES


For the new generation of marine crafts we have to leave to a great part the static mechanic models for the Hydrogen Dynamic Technology. The concept of the "Dynamic Stability" includes various hydroskimmers, They all have the same working principle. 


Working principle

Due to the special configuration of the propulsion force, the vehicle becomes manoeuvrable with great precision. The lower wing surface receives a special finishing and treatment, so that, during flight, it becomes electrically charged due to the friction. The fin has an aerodynamic function which increases as the vehicle gains in speed. Composite materials have been chosen where necessary, because of their strength, flexibility and lightness, specially where the fin is concerned. 

The high lifting capacity at low speed is achieved by the water pressure on the hydrodynamic fin as well as by the energy pressure on the natural centre. The resistance decreases very quickly, and when the pressure on the natural centre increases and the vehicle enters an electric track, the speed increases and the influence of the gravity force on the vehicle dicreases remarkably. When taking turns, the centrifugal forces have almost no impact on this marine vehicle since the natural centre is continuously being kept under control. 


Internal Dynamics

The "Internal Dynamics" directly refer to the natural centre which is situated very near the centre of gravity. Whereas the centre of gravity tends to move and cannot be controlled, the internal dynamics aim at getting the natural centre under control and at keeping it so during all phases of operation. By putting the required pressure on the natural centre, which is situated very low, thus remarkably increasing the stability , and by means of the configuration of form and energy, a dynamic equilibrium is brought about in the vehicle. 

Due to the pressure executed on the interior part of the equilibrium and due to the resulting back-pressure, all corresponding power and vibrations of the equilibrium, whatever be their nature, move towards one only fix and unmovable point, where the corresponding energies are assimilated. The sum of these centralized forces transforms itself in the equilibrium towards a proper identity order of magnetic-electric power, called "the natural center". The natural center constructs itself right behind the center of gravity. Whereas the center of gravity is subjected to the gravity forces and tends to move at increased speed, the natural center, on the contrary, is inforcing itself as an electric-magnetising internal dynamic identity. 

The propulsions of the propellors aim, in the first place, at generating the "internal dynamics" and keeping control on them during the whole operation, by giving the necessary pressure on the equilibrium (natural center). Due to the configuration of form and energy, the dynamic stability of the vehicle is generated. That is why the vehicle is almost not subject to the general gravity force and because the centripetal forces have but very little influence on the vehicle when taking turns. 


Direction 

Due to the pressure generated by the propellors towards the "natural centre", i.e. the equilibrium of the vehicle, the equilibrium becomes "dynamic" and by manipulating the propellors, by giving a different vertical and lateral component in the pressure force, the cross lines are moving and touching at different points. Steering becomes very precise by differentiating the amount of rotations. 

The behaviour of Shark was studied by engineers as an object of a first analysis of the mechanical model, which was necessary to prepare the text of the patent.  Evaluation of the working principle of Shark was made by the University of Gent, Belgium (fluid) to confirm the engineers´ analysis, something they thought was necessary to support their analysis. These studies and analysis, however, were not necessary to improve the concept and could not apport any improvement to the working principle of Shark, which is the result of a (non analytical) "whole research". Also it must be said that these analysis exclusively concern the mechanical model,  whereas the proper Know-How goes far beyond them and has to be transferred by means of personal contacts. 


Analytical study 

1. DETERMINATION OF THE CENTRE OF GRAVITY AND THE MAIN AXES OF INERTIA 

This determination was done on the basis of a finite element model. This model is represented in the figures 1. The total mass of the Shark (prototype 1/3) was determined analytically to be 13,4 Kg, this corresponds favorably to the mass that was experimentally measured as 12,5 Kg with more or less empty tanks. With its origin in the bow and the system of coordinates as shown in figures 1, the centre of gravity is situated as: 

  • x = 0,762 m
  •  
  • y = 0,000 m
  •  
  • z = 0, 137 m 

  • The corresponding moments of inertia around this centre of gravity are: 

  • Ixx = 0,404 kgm2 
  • Iyy = 0,9582 kgm2 
  • Izz = 1,264 kgm2 
  • Ixy = 0,139 kgm2 
  • Iyz = 0,097 kgm2 
  • Ixz = 0,127 kgm2
  •  
    In order to determine the stability of the prototype by means of a simulation programme the mass inertia moments must be known, because of their determining influence on the dynamic behaviour of the vehicle.

     
    Figures 1a: finite elements models of the Shark

    Further details of the analytical study of this absolute innovation will not be schown to third parties by means of a printed publication, or by any communication in general.
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