摘要:
An assembly (3) comprising at least a first module (1) and a second module (2) with respective longitudinal axes (5) is described. Each one of the modules (1, 2) comprises a connection side (6, 7, 8, 9) which is facing the other module (1, 2) and is arranged between the upper side (6, 7, 8, 9) and the underside (20, 42), and at least two elongated bendable members (12) which connects the first module (1) with the second module (2). The first module (1) comprises at least a first connection side (6) which comprises a first recess (13) which is a part of a rotationally symmetrical form with a symmetry axis (43) which is parallel with the connection side (6). The assembly (3) comprises at least a first connection member (17), which comprises an inelastic member (22) and a longitudinal axis (35) which is parallel with the symmetry axis (43), and which is in engagement with and rotatable around the symmetry axis (43) in relation to the first recess (13).
摘要:
Die Erfindung betrifft ein Hubwasserfahrzeug mit einem Vorschiff und einem Hauptschiff, wobei das Hauptschiff Hebevorrichtungen mit Hubstelzen aufweist, sodass das Hubwasserfahrzeug entlang der Hubstelzen hebbar und senkbar ist, und die Hubstelzen durch lösbar feste Hubstelzensegmente reversibel einsetzbar sind, wobei ein Blockkoeffizient des Hubwasserfahrzeugs einen Wert kleiner 0,85 oder einen Wert kleiner 0,81 oder einen Wert kleiner 0,77 oder einen Wert kleiner 0,68 oder einen Wert kleiner 0,73 oder einen Wert kleiner 0,64 oder einen Wert kleiner 0,60 aufweist.
摘要:
New design of vessel with submersible hulls which can transport large cargos at high speed sailing above the waves and which is made up of two parallel submerged bodies (4), clearly cylindrical in cross-section or as hydrodynamic as possible, joined by hydrodynamic profiles (5). Four hydrodynamic legs (3) are located in the confluence between the cylinders (4) and the profiles (5) capable of supporting a platform or loading zone (2) which can move (up or down) on the legs (3) which have a system of vertical displacement so as to raise itself above the level of the waves. The parallel bodies of submerged displacement (4) joined to the hydro-dynamic profiles (5) can be completely covered with a textile of permeable sheets of porosity less than the size of a molecule of water and greater than that of a molecule of air and air can be pumped into the interior. The air molecules escape via the pores breaking the outer layer and separating the water molecules from the submerged area so as to reduce viscous friction to a significant degree. The lower works can be raised to the level of the sea to load and material in their interior or to enter shallow water ports.
摘要:
A method for reducing a wave making resistance caused by a transom stem of a displacement ship that has a transom stem and voyages at a design speed corresponding to Froude's number of 0.2 - 0.4, the transom stem having a shape of a stern bottom profile, in which an inflection point is provided at a predetermined distance forward of a stern end, a slow flow region is formed forwardly of the inflection point and an accelerated flow region is formed rearwardly of the inflection point to make flow fields forward and rearward of the inflection point differ from each other, and a lower end of the stern end is positioned in the vicinity of a designed draught, thereby reducing the wave making resistance.
摘要:
Disclosed is a bow form of a ship that has at least one box-shape hold and travels at a medium speed which is higher than that of a tanker or a bulk carrier and corresponds to a Froude's number of 0.18 - 0.23, the bow form being obtained by substantially vertically upwardly extending a forefront end line (1a) of a bow forming a bow profile from a lower end position of the fore end (3) under a designed load waterline (2) to an upper deck (4) to allow the forefront end line (1a) to substantially conform to a fore perpendicular (FP) and to a forefront end (3) defining length overall (Loa) of the ship and by sharpening a waterline shape in a range of the vertical extension.
摘要:
Non-planing vessel with single hull (2). A foil (10) is fitted below the waterline at the place where the greatest flow constriction exists, in other words at the transition from the relatively broad part (9) to the narrowing part. This foil is situated at a distance from the hull (2) and preferably extends horizontally over as large a part of the hull as possible at a constant distance from the latter. The foil is designed in such a way that, apart from a lifting force, a forward propelling force is exerted. The performance of the vessel can be improved by fitting such a foil.
摘要:
The invention relates to a ship's hull comprising a first hull part (1) arranged as a hard-chine hull disposed on a second hull part (2) in the shape of a super-slender float. Due to the fact that in service conditions only the aft half of the first hull part intersects the water surface, two separate bow waves develop. By appropriate selection of hull widths and by disposition of the first hull part (1) on the second hull part (2), the bow waves are in phase opposition. This reduces the wave-induced drag of the ship's hull considerably, especially near the critical speed.
摘要:
Dans le domaine technique de l'hydrodynamique, on décrit l'installation d'un absorbeur de l'énergie de rencontre ou d'un conducteur externe placé à l'avant de la proue et, le cas échéant, s'étendant à l'arrière de celle-ci. Le conducteur s'étend sous l'eau ou à la fois sous l'eau et hors de l'eau, selon la charge totale et le lestage du navire. Ledit absorbeur de l'énergie de rencontre, c'est-à-dire le conducteur externe monté à l'avant de la proue et doté ou non de pieds s'étendant derrière cellec-i, doit avoir une construction symétrique. On peut également produire un conducteur, c'est-à-dire un absorbeur de l'énergie de rencontre, avec ou sans pieds et présentant une section divergente et/ou convergente constante.
摘要:
A ship is provided with: a first ship bottom (21) which is sloped upward and rearward from the ship bottom (13) located on the centerline (C) of the ship body (11) in the width direction thereof; and a second ship bottom (22) which is interconnected with the first ship bottom (21) at a position separated forward from the stern end (12a) by a preset predetermined distance (L) and which has a tilt angle greater than or equal to the angle of a line extending parallel to or tilted upward from a planned water line (S) and less than the angle of a line tilted downward from a line extending rearward from the first ship bottom (21). The configuration can reduce the resistance of the ship body during navigation.
摘要:
The invention relates to a vessel for operating on a body of water comprising: a non-planing hull having a waterline and a longitudinal direction with a forward portion, an aft portion, and a central portion, the hull being configured to have the aft portion with a smaller water displacement relative to a water displacement at the central portion; and an aft foil affixed to the aft hull portion with one or more connecting members, and below the surface of the water, and spaced from the hull, the aft foil having a span, a chord, and a leading edge and a trailing edge relative to a forward direction, wherein the leading edge of the aft foil is tilted at a downward angle relative to the horizontal, wherein the aft foil has a chord and profile in longitudinal cross section, with a configuration to provide a lifting force, the tilt angle of the chord of the aft foil being measured with respect to the horizontal, and wherein the aft foil is oriented to provide a continuous, upward, forwardly directed component of the lifting force.