摘要:
A suspension system for a marine vessel, the marine vessel including a body portion at least partially supported relative to at least a left hull and a right hull by the suspension system, the left and right hulls being moveable relative to each other and the body, the suspension system including resilient supports between the body portion and the left and right hulls. The suspension system providing at least a roll stiffness being arranged to provide a roll moment distribution (RMD) of the suspension system wherein roll forces effectively act at a position disposed within a longitudinal distance along the marine vessel from a steady state position of the resultant pressure forces acting on the left and right hulls when the marine vessel is operating in a planing or semi-planing mode. The longitudinal distance can be 20% or less of a waterline length of one of the at least a left and a right hull at design load in displacement mode.
摘要:
A boat having a deck and a hull includes a suspension for suspending the deck with respect to the hull. Sensors are employed to determine motion of the deck, with a controller adjusting the suspension such that it maintains the pose of the deck with respect to an inertial reference and with respect to pitch, roll, and heave of the deck.
摘要:
The invention relates to an assembly that comprises a group (40A-40C) of hydraulic shock absorbers (42), each shock absorber (42) including a hydraulic ram including a cylinder to be carried by the first member (14), and a shock-absorbing member partially inserted into the cylinder. The shock-absorbing member has a head projecting from the cylinder, said head being brought in contact with the second member when mounting the second member on the first member (14). The shock-absorbing assembly (17) comprises, for each group (40A-40C) of shock absorbers (42), a fluid accumulator (44) connected to each cylinder of the group of shock absorbers (42) in order to enable the transfer of a hydraulic fluid between the different cylinders of the group of shock absorbers (42) upon contact of each head with the second member.
摘要:
There are disclosed systems and methods for supporting cargo tanks within the hold of a liquefied gas carrier by establishing a series of spaced-apart pedestals along the longitudinal axis of a tank, said pedestals positioned in conjunction with the ship's structural components. These pedestals are of wood or other suitable thermal insulating and load bearing material fixed to the tank below its circumferential diameter along both the starboard and port tank sides. The pedestals rest on structural longitudinal stringers laying port and starboard in the horizontal plane and fixed and supported by the ship's hull structure. Longitudinal and transverse pedestal movement is controlled by stops attached to the stringers at one or more of the pedestals. The stops contact the pedestals via bearing pads which constrain the pedestal in one direction but permit its movement in another.
摘要:
A propeller shaft assembly having a propeller shaft member defining an inner volume. A foam liner member is disposed in at least a portion of the inner volume of the propeller shaft member. The foam liner member is made of a viscoelastic, natural oil polyol-based foam, whereby the foam liner member is operable to reduce vibration amplitudes occurring within the propeller shaft member relative to an undampened propeller shaft member.
摘要:
Seegangkompensationseinrichtung mit einem Aktivsystem (6, 8, 10) und einem Passivsystem (16). Bei dem Passivsystem sind Aktuatoren (18, 20, 22) über eine Gelenkeinrichtung (C) mit einer eine Last tragenden Plattform (2) verbunden. Über diese Gelenkeinrichtung kann der wirksame Hebel (L), mit dem die Aktuatoren die Plattform passiv abstützen, in Abhängigkeit vom Lastzustand verändert werden.
摘要:
The coupling comprises first gripping members (7) which are connected, facing on one and the same level on corresponding mounting bodies (2), to respective structures, and second gripping members (15) mounted so as to slide vertically on the first gripping members (7) in order to secure tyres (14) in two diametrically opposed regions thereof with the collaboration of threaded rods (22). The gripping members (7) and (15) provide retention walls (10 and 19) that extend towards the mounting bodies (2) by means of horizontal retention flanges (11 and 20). The second gripping members (15) have walls (17) with holes for the passage of screws during fitting thereof to the mounting bodies (2).
摘要:
A method for manufacturing a laminar construction panel comprising a first (1) and a second (2) metal plate and an acoustic insulation layer (3) interposed there between. The first and second metal plates are connected to each other by a number of locally welded joints distributed over the laminar construction panel and extended through an area of an acoustic isolation layer. The welded joints are formed by stud welding, one of the metal plates is provided with welding openings (4), and a welding pin (7) is pushed through the isolation layer against the other metal plate. The welded joints may be formed by spot welding, both metal plates are brought into electrical connection with the spot welding equipment, and the metal plates locally are pressed toward each other in such a way that mutual electrical contact is made.
摘要:
A suspension system for passenger modules used with high-speed boats, the suspension system including a shock absorbing assembly, for supporting the passenger module relative to the vessel. The passenger module is attached to the vessel via an assembly of pivoting spars in which the vessel attachment locations are spaced athwart a greater distance than the passenger module attachment locations. The suspension system may include means for resisting relative lateral movement (e.g. a panhard rod or a Watt's linkage) and for attenuating motion associated with pitch and roll.