Wholehog

 

(57) Abstract:

Usage: as a craft that uses the energy of sea waves. The inventive casing 1 Vologda has a spherical shape, is divided by a horizontal partition wall 6 of the compartment 7 is filled with liquid, and 8, provided with a socket in which is secured with the possibility of vertical movement of air tank 10. Wave propulsion 2 attached to the body 1 by means of the swivel brackets made in the form of an articulated parallelogram mechanisms. By changing the position of the tank and propulsion regulate the frequency and the amplitude of the pitching Vologda and provide thereby obtaining maximum thrust at different excitement. 1 C.p. f-crystals, 4 Il.

The invention relates to shipbuilding, namely, floating facilities, using the power of the waves.

Known wholehog in the form of pivotally interconnected floating modules, each of which contains a floating body and wave propulsion, made in the form of rotary wing devices forming a given angle of attack. Each floating module has a shallow draft and high stability. His pitching is not accompanied by noticeable peremeshenie thrust wanaheda by increasing the amplitude of pitching at any intensity and directional angle of excitement.

It is known that the amplitude of the pitching craft and, accordingly, the thrust of the wave propulsion reaches a maximum at resonance, i.e., in case of equal period of pitching Ttothe period of free oscillations of the craft about the axis of pitching TSt= 2 , where I is the moment of inertia of the craft about the axis of pitching - moment of inertia of the attached masses of water, D is the weight of the craft, ho- the initial metacentric height (Mirkin Century. Century. and other Theory of the ship. Leningrad: Sudostroenie, 1989, S. 54 and 264).

In Fig. 1 presents wholehog with a small period of natural oscillations, section diametral plane of Fig. 2 - the same, with a long period of free oscillations of Fig. 3 - wave mover attached to the housing wanaheda, General view; Fig. 4 - layout of the propellers relative to the body wanaheda at various wave parameters.

Wholehog includes a housing 1 in the form of a body of revolution about a vertical axis, the wave propulsion 2 and towing device made in the form of a fork 3, a hinge mounted on horizontal pins 4 of the housing 1 and provided with a turning device 5. The housing 1 is divided hermetic horizontal partition 6 into two compartments, of which no radial gap placed air tank 10, connected to the lifting mechanism 11.

To the Board of the housing 1 is attached to the bracket, made in the form of an articulated parallelogram mechanism containing rods 12 and 13, mounted on hinges 14 with vertical axes of rotation. The free ends of the rods are pivotally connected to the support 15 of the shaft 16, which is movably fixed rotary wing 2 with the device forming a given angle of attack. When the rotation of the bracket relative to the body 1 in the horizontal plane of the shaft 16 remains perpendicular to the median plane of Vologda. To increase the limit rotation angle bracket rod 12 and 13 are located in different horizontal planes. Each bracket is equipped with an independent drive of the rotation.

When weak with excitement (and a small period of pitching) tank 10 is in its extreme upper position, the entire liquid cargo is concentrated in the lower compartment 7, the brackets are at the rate of Vologda (Fig. 4A) in the case of lag excitement (heading angle excitement 90 or 270aboutor across the course at a head or tail excitement (Fig. 4B), i.e., so that the distance between the propellers and the axis of pitching was minimal. In this case, the center of gravity G is located in the lower position, the value of hoode pitching Ttoi.e. is pitching resonance with a maximum amplitude and a maximum thrust of Vologda.

With the strengthening of excitement (and the longer the period of pitching) the tank 10 is lowered, the liquid from the compartment 7 through the radial clearance flows in the slot 9. Brackets propulsion turn so that the distance between the propellers and the pitching axis is increased (Fig. 4A - if there is oncoming or passing excitement, Fig. 4B - lag when the excitement). This moves the center of gravity G up and decrease hoand also to increase the moments of inertia I and .

The simultaneous action of these three factors leads to a significant increase of the period of free oscillations of Vologda. For presents in the drawing structural diagrams - about 3 times. Since the period of pitching T , where at is the average height of the waves, resonant rolling with maximum amplitude and maximum thrust wanaheda are achieved when the wave parameters, changing 9 times, for example from 2 to 7 points.

1. WHOLEHOG containing floating hull fitted with wave propulsion in the form of wings with mechanism for forming a given angle of attack, wherein the body is made in the form of a body of rotation relative lnen liquid and is connected with a vertical cylinder, inside of which is placed with a gap with the possibility of longitudinal movement of the air tank.

2. Wholehog under item 1, characterized in that each wave mover connected to the housing by means of a bracket made in the form of an articulated parallelogram mechanism can be rotated in the horizontal plane.

 

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