A composite structural component is disclosed. The composite structural component can include a lattice structure, a casing disposed about at least a portion of the lattice structure, and a skin adhered to a surface of the casing. The lattice structure and the casing can be formed of a polymeric material and the skin can be formed of a metallic material. A method of manufacturing a composite structural component is disclosed. The method can include creating a casing of a polymeric material and creating a lattice structure of a polymeric material disposed about at least a portion of the casing. The method can include sealing the porosity of the casing and lattice structure. The method can include adhering a skin of a metallic material to at least a portion of the casing. At least one of creating a lattice structure and creating a casing comprises utilizing an additive manufacturing process.

The present invention concerns a bulbous bow for a sea-going vessel, said bow comprising a load-carrying inner structure mounted at the stem of the vessel and an outer shell structure defining the hydrodynamic properties of the bulbous bow, wherein said outer shell structure is provided with a sub-structure for replaceably mounting on the inner structure. The invention further concerns a seagoing vessel comprising such bulbous bow as well as a method of producing a bulbous bow and a method of mounting or replacing a bulbous bow.

The present invention concerns a bulbous bow for a sea-going vessel, said bow comprising a load-carrying inner structure mounted at the stem of the vessel and an outer shell structure defining the hydrodynamic properties of the bulbous bow, wherein said outer shell structure is provided with a sub-structure for replaceably mounting on the inner structure. The invention further concerns a seagoing vessel comprising such bulbous bow as well as a method of producing a bulbous bow and a method of mounting or replacing a bulbous bow.

A composite structural component is disclosed. The composite structural component can include a lattice structure, a casing disposed about at least a portion of the lattice structure, and a skin adhered to a surface of the casing. The lattice structure and the casing can be formed of a polymeric material and the skin can be formed of a metallic material. A method of manufacturing a composite structural component is disclosed. The method can include creating a casing of a polymeric material and creating a lattice structure of a polymeric material disposed about at least a portion of the casing. The method can include sealing the porosity of the casing and lattice structure. The method can include adhering a skin of a metallic material to at least a portion of the casing. At least one of creating a lattice structure and creating a casing comprises utilizing an additive manufacturing process.

A composite structural component is disclosed. The composite structural component can include a lattice structure, a casing disposed about at least a portion of the lattice structure, and a skin adhered to a surface of the casing. The lattice structure and the casing can be formed of a polymeric material and the skin can be formed of a metallic material. A method of manufacturing a composite structural component is disclosed. The method can include creating a casing of a polymeric material and creating a lattice structure of a polymeric material disposed about at least a portion of the casing. The method can include sealing the porosity of the casing and lattice structure. The method can include adhering a skin of a metallic material to at least a portion of the casing. At least one of creating a lattice structure and creating a casing comprises utilizing an additive manufacturing process.

An improved multiple layer hull system may be used in vehicle applications. An upper hull may be monolithic or may have a plurality of seams. A sacrificial lower hull may be entirely U-shaped or partially flat-bottomed, or may have a U-shaped or partially flat-bottomed base with outwardly extending wings complementing a lower surface of the upper hull. A blast deflector may be beneath the lower hull or base either as a separate part or as an integral part.

A structure of a horizontal type cylindrical double-shell tank mounted on a ship includes: an inner shell storing liquefied gas; and an outer shell forming a vacuum space between the inner shell and the outer shell. A pair of support units supporting the inner shell is disposed between the inner shell and the outer shell. Each support unit includes: a plurality of cylindrical elements arranged in a circumferential direction of the tank such that an axial direction of each of the cylindrical elements coincides with a radial direction of the tank; a plurality of inner members each holding an end portion of a corresponding one of the cylindrical elements at the inner shell side; and a plurality of outer members each holding an end portion of a corresponding one of the cylindrical elements at the outer shell side. Each of the cylindrical elements is made of glass fiber reinforced plastic.

A structure of a horizontal type cylindrical double-shell tank mounted on a ship includes: an inner shell storing liquefied gas; and an outer shell forming a vacuum space between the inner shell and the outer shell. A pair of support units supporting the inner shell is disposed between the inner shell and the outer shell. Each support unit includes: a plurality of cylindrical elements arranged in a circumferential direction of the tank such that an axial direction of each of the cylindrical elements coincides with a radial direction of the tank; a plurality of inner members each holding an end portion of a corresponding one of the cylindrical elements at the inner shell side; and a plurality of outer members each holding an end portion of a corresponding one of the cylindrical elements at the outer shell side. Each of the cylindrical elements is made of glass fiber reinforced plastic.

An outboard motor boat is provided with a hull, a deck, at least one outboard motor and a bulwark. The hull includes a rear portion. The deck is provided on the hull. The at least one outboard motor is mounted to the rear portion of the hull. The bulwark is provided on the deck. The deck includes an aft deck in the rear of the deck. The aft deck includes a first part disposed forward of the outboard motor and a second part extending rearward with respect to the first part in a fore-to-aft direction. The first part is at least partially disposed in a non-overlapping location with respect to the outboard motor and the bulwark as viewed from a side view of the outboard motor boat. The second part extends along a lateral portion of the outboard motor.

The present invention concerns a bulbous bow for a sea-going vessel, said bow comprising a load-carrying inner structure mounted at the stem of the vessel and an outer shell structure defining the hydrodynamic properties of the bulbous bow, wherein said outer shell structure is provided with a sub-structure for replaceably mounting on the inner structure. The invention further concerns a seagoing vessel comprising such bulbous bow as well as a method of producing a bulbous bow and a method of mounting or replacing a bulbous bow.