Lattice sandwich acoustic window structure of ship dome

Abstract

The invention provides a lattice sandwich acoustic window structure of a ship dome and belongs to the technical field ship acoustics. The lattice sandwich acoustic window structure of the ship dome comprises an inner constraint surface layer, an outer constraint surface layer and a middle core layer, wherein the core layer is tightly stuck between the inner constraint surface layer and the outer constraint surface layer; the inner constraint surface layer and the outer constraint surface layer are made of carbon fiber enhanced composite materials; the core layer is a three-dimensional lattice layer body formed by integrating one layer or more layers of three-dimensional lattice structures; the material of the core layer is the same as the materials of the inner constraint surface layer and the outer constraint surface layer. An acoustic window and the dome are integrated, so that the lattice sandwich acoustic window structure is conveniently and integrally mounted and influences, caused by an installation structure of a splitting type acoustic window, on performance of an energy converter are avoided.

Description

technical field [0001] The invention relates to a dot-matrix sandwich sound-permeable window structure for a ship-used wind deflector, and belongs to the technical field of ship-used acoustics. Background technique [0002] The bottom of the bow of modern large and medium-sized ships is mostly equipped with a comprehensive bow detection sonar array. In order to avoid the impact of water flow on the sonar array and protect the array from the direct interference of "false sound", diversion is usually arranged outside the sonar array. cover. The bulbous bow shroud of a ship equipped with sonar is the detection window for underwater anti-submarine warfare. As the working compartment of the equipment, the acoustic window structure of the bulbous bow dome requires good acoustic performance, small beam distortion, good hydrodynamic performance and low self-noise. Therefore, the acoustic design of the material, line type and structure of the sonar dome should achieve good acoustic...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical problem of the poor flow noise reduction performance of the marine dome in the prior art, the present invention proposes a dot matrix sandwich sound-permeable window structure of the dome for the ship, and the adopted technical scheme is as follows:

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