水下加肋双层圆柱壳体振动传递特性分析

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振动与冲击 ›› 2011, Vol. 30 ›› Issue (5) : 218-220.

论文

水下加肋双层圆柱壳体振动传递特性分析

金广文1，章林柯2，缪旭弘1，贾地1，王雪仁1

作者信息 +

Vibration transmissibility of submerged cylindrical double-shell based on reconstructing velocity field

JIN Guang-wen1, Zhang Lin-ke 2, MIAO Xu-hong 1, Jia Di1, Wang Xue-ren1

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文章历史 +

摘要

摘要：研究水下双层圆柱壳体振动传递特性具有重要的工程意义，尤其对于水下结构噪声快速预报和外壳表面速度场实时重构。以此为出发点，通过双层加肋圆柱壳体模型水下振动试验研究了不同激励条件下内外壳体振动特性；然后建立了水下双层圆柱壳体有限元模型，计算分析了壳体在流固耦合条件下的振动路径及特性，找出了不同激励方向、流体耦合方式和内外壳体连接方式等典型因素下内、外壳体间振动传递规律，为速度场重构和水下噪声预报提供了一定的理论指导。

Abstract

Abastract: Proceeding from timely reconstructing velocity field and evaluating noise for outer shell of submarine, vibration transmissibility between double shells of submerged cylindrical double-shell structure has studied by underwater vibration test. An finite element model of ribbed cylindrical double-shell was established in the paper. Analyzed the vibration response of shells, and founded the law of transmissibility for cylindrical double-shell in different forms, there are fluid-structure coupling, exciting-forces and connection dimension between double shells. The results of test and calculation provided some theoretical basis for velocity field reconstruct of outer shell and noise source identification of the submarine.

导出引用

&#;金广文;章林柯;缪旭弘;贾地;王雪仁. 水下加肋双层圆柱壳体振动传递特性分析[J]. 振动与冲击, 2011, 30(5): 218-220

JIN Guang-wen;Zhang Lin-ke;MIAO Xu-hong;Jia Di;Wang Xue-ren. Vibration transmissibility of submerged cylindrical double-shell based on reconstructing velocity field[J]. Journal of Vibration and Shock, 2011, 30(5): 218-220