US 6,182,596 B2Granted

System for minimizing the effects of shock and vibration in a high speed vessel

OwnerRobert K. Johnsoninventor

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Abstract

A system for minimizing the effects of shock and vibration in a high speed vessel with an inner hull and an outer hull. It is a system of dampers, springs and stabilizer linkages in a high speed vessel that control the relative motion of an inner hull to an outer hull, thereby minimizing the effects of shock and vibration in the inner hull. Leaf spring assemblies may be used or as a substitute, torsion rod assemblies may be used, both in combination with dampers such as shock absorbers.

Claims30

Dependent claims

A system for minimizing the effects of shock and vibration in a high speed vessel having a deck, superstructure, ship propulsion machinery, tankage and related equipment, comprising:

a vessel having an inner hull and an outer hull, the inner hull further including the deck and superstructure;
the inner hull superstructure further having a side deck and a downwardly extending outer edge along a perimeter of the superstructure side deck, the side deck and outer edge being in an overlapping relationship with a corresponding deck flange and downwardly extending outer edge along a perimeter of an upper edge of a sidewall of the outer hull;
at least one longitudinal pivoted link, one end of which is pivotally attached at a predetermined location on an inner bottom surface of the outer hull and generally aft of the vessel, an opposite end being pivotally attached at a predetermined location on an outer surface of the inner hull and generally forward of the vessel proximate a keel line of the vessel, the longitudinal pivoted link for constraining the longitudinal motion of the inner hull relative to the outer hull while allowing relative vertical motion;
an aft transverse pivoted link, one end of which pivotally attached generally under the outer bottom surface of the inner hull at a location generally aft of the vessel and proximate a joinder of an inner sidewall surface of the outer hull and the inner bottom surface of the outer hull, an opposite end being pivotally attached at a predetermined location on the outer bottom surface of the inner hull proximate a joinder of an outer sidewall of the inner hull and the bottom surface of the inner hull, the aft transverse pivoted link for constraining the lateral motion of the inner hull relative to the outer hull while allowing relative vertical motion;
a forward end lateral motion limiting means between a bow end of the inner hull and a bow end of the outer hull for providing a lateral motion constraint while allowing relative vertical motion;
a plurality of spring and damper support means between the inner hull and outer hull for cushioning a vertical motion imparted by the outer hull;
and
each of the plurality of spring and damper support means being located symmetrically at predetermined locations along a port and starboard side of the vessel.

5 more elements

Dependencies are inferred from the claim text.

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Abstract

A system for minimizing the effects of shock and vibration in a high speed vessel having a deck, superstructure, ship propulsion machinery, tankage and related equipment, comprising:

a vessel having an inner hull and an outer hull, the inner hull further including the deck and superstructure;
the inner hull superstructure further having a side deck and a downwardly extending outer edge along a perimeter of the superstructure side deck, the side deck and outer edge being in an overlapping relationship with a corresponding deck flange and downwardly extending outer edge along a perimeter of an upper edge of a sidewall of the outer hull;
at least one longitudinal pivoted link, one end of which is pivotally attached at a predetermined location on an inner bottom surface of the outer hull and generally aft of the vessel, an opposite end being pivotally attached at a predetermined location on an outer surface of the inner hull and generally forward of the vessel proximate a keel line of the vessel, the longitudinal pivoted link for constraining the longitudinal motion of the inner hull relative to the outer hull while allowing relative vertical motion;
an aft transverse pivoted link, one end of which pivotally attached generally under the outer bottom surface of the inner hull at a location generally aft of the vessel and proximate a joinder of an inner sidewall surface of the outer hull and the inner bottom surface of the outer hull, an opposite end being pivotally attached at a predetermined location on the outer bottom surface of the inner hull proximate a joinder of an outer sidewall of the inner hull and the bottom surface of the inner hull, the aft transverse pivoted link for constraining the lateral motion of the inner hull relative to the outer hull while allowing relative vertical motion;
a forward end lateral motion limiting means between a bow end of the inner hull and a bow end of the outer hull for providing a lateral motion constraint while allowing relative vertical motion;
a plurality of spring and damper support means between the inner hull and outer hull for cushioning a vertical motion imparted by the outer hull;
and
each of the plurality of spring and damper support means being located symmetrically at predetermined locations along a port and starboard side of the vessel.

5 more elements