利用船舶结构进行水下测绘辐射噪声预报  

Prediction of radiated noise of underwater mapping by ship structure

作　　者：黄庆锋[1] 

机构地区：[1]黔西南民族职业技术学院,贵州黔西南562400

出　　处：《舰船科学技术》2017年第5X期4-6,共3页Ship Science and Technology

摘　　要：船舶结构的水下测绘辐射噪声预报是海洋资源探测中的关键问题。本文首先建立了船体的有限元模型,然后在此基础上进行振动模态的分析,并通过实验对低频声辐射和中高频声辐射特性进行了对比分析,实验结果表明,低频对于船舶结构的水下测绘辐射噪声影响较大,随着频率的增大,辐射噪声会急剧下降。在今后将对减振降噪的措施和效果评估做进一步研究。Prediction of radiation noise from underwater mapping of ship structures is a key problem in marine resources exploration. In this paper, the finite element model of the ship hull was established, and then the vibration mode was analyzed. The low frequency acoustic radiation and high frequency acoustic radiation characteristics were analyzed. The experimental results showed that the low frequency had a great influence on the underwater mapping radiation noise of the ship. In the future, we will further study the measures and effect evaluation of vibration and noise reduction.

关 键 词：船舶结构 噪声预报 水下测绘 

分 类 号：U661.44[交通运输工程—船舶及航道工程]