A three-dimensional sono-elastic method of ships in finite depth water with experimental validation

作者：Zou, Ming-Song^*; Wu, You-Sheng; Liu, Shu-Xiao

来源：Ocean Engineering, 2018, 164: 238-247.

DOI：10.1016/j.oceaneng.2018.06.052

• Hydroelasticity
• Sono-elasticity
• Green's function
• Irregular frequencies
• Vibration
• Acoustic radiation

In order to conduct the comprehensive analysis of fluid-structure interactions, acoustic radiation and acoustic propagation, a three-dimensional sono-elastic method in the frequency domain is proposed in this paper. In this method, the three-dimensional hydroelasticity theory of floating structures is incorporated with the hydro acoustic propagation theory by introducing frequency domain Green's functions appropriate to the ocean hydro acoustic waveguide environment. The simple source boundary integral approach is adopted to obtain the sono-elastic response in the frequency domain. In order to deal with the irregular frequency problem in this approach, a Closed Virtual Impedance Surface (CVIS) method is put forward. At last, the sono-elastic method is validated by calculating the acoustic radiation of a floating elastic spherical shell and an experiment of the underwater acoustic radiation of two ring-stiffened cylindrical shell models.

• 出版日期2018-9-15
• 单位中国船舶科学研究中心