The invention discloses a pressure-resistant underwater vehicle shell based on the acoustic black hole principle. The pressure-resistant underwater vehicle shell comprises an underwater vehicle shell body and a plurality of annular reinforcing ribs connected to the inner wall and the outer wall of the underwater vehicle shell body. A plurality of single-blade acoustic black hole components are annularly and symmetrically distributed on the two sides of the inner and outer wall annular reinforcing ribs; a plurality of double-blade acoustic black hole components are annularly distributed between the single-blade acoustic black hole components; damping layers are attached to the lower surfaces of the single-blade acoustic black hole components and the double-blade acoustic black hole components; the upper surface of the single-blade acoustic black hole component is a streamline tapered surface along one side; the middle of the double-blade acoustic black hole component is a table-shaped protrusion, and the two sides of the double-blade acoustic black hole component are symmetrical streamline tapered faces. The multiple annular reinforcing ribs are connected to the shell so that the compression strength of the shell in underwater navigation can be effectively improved, the multiple single-blade and double-blade acoustic black hole components are arranged, vibration bending wave energy is concentrated to the acoustic black hole area to achieve energy absorption and dissipation, and the high-efficiency vibration and noise reduction performance advantage is achieved.
本发明公开了一种基于声学黑洞原理的耐压水下航行器壳体,包括水下航行器壳体、多个连接在水下航行器壳体内壁和外壁的环形加强筋;在内外壁环形加强筋两侧环向对称分布有多个单叶声学黑洞构件;在单叶声学黑洞构件之间环向分布有多个双叶声学黑洞构件;在各单叶声学黑洞构件和双叶声学黑洞构件下表面附有阻尼层;单叶声学黑洞构件上表面为沿一侧呈流线型渐缩面;双叶声学黑洞构件中间为台状凸起,两侧为对称呈流线型渐缩面。在壳体上连接多个环形加强筋可有效提高壳体在水下航行中的耐压强度,设置多个单叶和双叶声学黑洞构件,振动弯曲波能量集中到声学黑洞区域实现能量吸收和耗散,具备高效减振降噪性能优势。
Pressure-resistant underwater vehicle shell based on acoustic black hole principle
一种基于声学黑洞原理的耐压水下航行器壳体
2024-06-14
Patent
Electronic Resource
Chinese
IPC: | B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS |
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