船舶声弹性力学理论及其应用

船舶结构与水介质耦合动力学在改善船舶运动性能与结构安全性,控制船舶振动噪声与提高水下声隐身性能,进行船舶综合性能的优化设计等一系列工程问题中有广泛的应用需求与发展前景.本文综述了船舶水弹性力学、声弹性力学的理论方法、试验技术与应用技术的国内外研究进展;介绍了在带航速三维水弹性力学理论(Wu 1984)基础上,作者所在课题组近年来发展的船舶三维声弹性理论、计算技术及工程应用的概况.简述了船舶三维声弹性理论的部分应用情况及发展方向.

Sono-elasticity of ships and the related applications

Dynamics of coupled fluid-structure interaction of ships has great demand for applications, and vast vistas in improving motion behavior and structural safety, controlling vibration and noise, and enhancing stealth capability of ships. In this paper, we summarize the status-of-the-art of theoretical and experimental developments of ship hydroelasticity and ship sono-elasticity, as well as applied techniques. We briefly describe the results ob-tained by the authors' research group in the three-dimensional sono-elasticity theory based on a three-dimensional hydroelasticity theory (Wu 1984), the improvements of computa-tional techniques, and the extensions in engineering applications. Some future directions are also discussed.