THREE-LAYER HULL STRUCTURE Russian patent published in 1999 - IPC

FIELD: shipbuilding; aeronautical engineering; rocketry; construction and transport engineering. SUBSTANCE: use is made of laminated metallopolymer possessing good dampening and strength properties for three-layer hull structural members (boxshaped, triangular, etc.), inner structural members and load-bearing layers. To enhanced dampening, noise-absorbing and heat insulating characteristics, cavities of three-layer structural members are filled with foamed epoxy composition having density of 0.1 to 0.6 t/cu.m used in composition of laminated metallopolymer. Heat conductivity of three- layer structural members made from laminated metallopolymer is lesser by 2.5 times as compared with metal structural members, dampening is increased by 40 times and noise level is reduced by 14 dB. EFFECT: enhanced dampening, noise absorbing and heat insulating characteristics. 1 dwg, 1 tbl