Composite support plate device between double-layer hull board with high-silence-low-motion stiffness and modeling method of composite support plate device

Abstract

The invention discloses a composite support plate device between a double-layer hull board with high-silence-low-motion stiffness. The composite support plate device between the double-layer hull board with high-silence-low-motion stiffness comprises a pressure cylinder between the double-layer hull board, an outer side support plate, an inner side support plate and an adhesive elastic damping material, wherein a piston panel is arranged in the pressure cylinder, and the piston panel is in gap coordination with the inner wall of the pressure cylinder; the upper part of the outer side support plate is fixedly connected to a light surrounding shell, and the lower part of the outer side support plate extends into the pressure cylinder and is fixedly connected to the piston panel; the lower part of the inner side plate is fixedly connected to a pressure resistant hull, and the upper part of the inner side plate is fixedly connected to the bottom of the pressure cylinder; the adhesive elastic damping material is sealed in the pressure cylinder, and the upper surface and the lower surface of the adhesive elastic damping material are vulcanized with board pieces in contact with the upper surface and the lower surface of the adhesive elastic damping material into an entirety. According to the composite support plate device between the double-layer hull board with high-silence-low-motion stiffness, the working stiffness is low when in normal load, the limiting stiffness is high when big load and big deformation occur, the structure is simple, the use and the maintenance are convenient, and the damping effect is remarkable. The invention further discloses a modeling method of the composite support plate device between the double-layer hull board with high-silence-low-motion stiffness.

Description

technical field [0001] The invention belongs to the field of structural vibration and noise control, and in particular relates to a composite wave choke supporting plate structure and a working method thereof for vibration and noise reduction of a double-hull shipboard with high static and low dynamic stiffness. Background technique [0002] With the development of anti-submarine detection methods and anti-submarine weapons, the requirements for the quietness of underwater vehicles are getting higher and higher, so vibration reduction and noise reduction technology is particularly important. The existing supporting plate member is a necessary connecting member between the sides of the double hull of the underwater vehicle. It is generally made of homogeneous steel materials and welded to the structure of the vehicle in a uniform arrangement. It is mainly used to improve the overall or The design of local structural strength and stability mainly considers the factors of struc...

AI Technical Summary

Problems solved by technology

However, since the elastic modulus of viscoelastic materials is generally small, if such a sandwich structure of viscoelastic materials is used, the connection stiffness between the hulls of the double-layer hull will be greatly reduced, and the static stiffness will also be insufficient while reducing the dynamic stiffness. problems, especially when the light enclosure encounters a sudden load, it is easier to form excessive radial relative displacement between the double shells and cause structural damage

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