Lattice sandwich acoustic window structure of ship dome

Abstract

The invention provides a dot-matrix sandwich sound-permeable window structure for a ship-used wind deflector, which belongs to the technical field of ship-used acoustics. The marine dome lattice sandwich sound-permeable window structure includes an inner constraining surface layer, an outer constraining surface layer and an intermediate core layer; the core layer is tightly bonded between the inner constraining surface layer and the outer constraining surface layer; The inner constraining surface layer and the outer constraining surface layer are made of carbon fiber reinforced composite material, and the core layer is composed of a three-dimensional lattice layer formed by a collection of one or more three-dimensional lattice structures; the material of the core layer Same material as the inner and outer constraining surfaces. The sound-transmitting window and the air guide cover are integrated, which is convenient for integrated installation and avoids the influence of the installation structure of the split-type sound-transmitting window on the performance of the transducer.

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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