中国舰船研究2017，Vol.12Issue(6)：54-65,12.DOI:10.3969/j.issn.1673-3185.2017.06.009
沉积层面貌和温度主导的声速变化对有限水域试验场声传播特性影响的仿真研究
Simulation study on the influence of sedimentary layer appearance and temperature-dominated sound velocity change on acoustic propagation characteristics of the proving field in limited water area
摘要
Abstract
[Objectives]To enrich the study series of acoustic propagation characteristics of the proving field in limited water area, the characteristics of influence by sedimentary layer appearance and temperature-dominated sound velocity change on transmission loss at testing near field and far field are analyzed. [Methods] Through Matlab and VB combined programming software, the corresponding acoustic transmission loss curves of different indentation shapes, sizes, numbers and distributions, and different sediment slope types and angles, different temperature-dominated sound velocity changes were obtained.[Results]The results show that the influence of sedimentary layer appearance is slight, but it nonetheless eliminates the influence of unknown indentation features on the acoustic experiments of large-scale complex ship architecture and ocean structures;the influence of temperature-dominated sound velocity change on the near field is much less than the far field, and transmission loss at the far field generally increases with the increase in sound velocity, [Conclusions] which offers a reference for acoustic experiments of the proving field in limited water area.关键词
沉积层面貌/温度/声速变化/有限水域试验场/声传播特性Key words
sedimentary layer appearance/temperature/sound velocity change/proving field in limited water area/acoustic propagation characteristics分类
交通工程引用本文复制引用
仪修阳,周其斗,吕晓军..沉积层面貌和温度主导的声速变化对有限水域试验场声传播特性影响的仿真研究[J].中国舰船研究,2017,12(6):54-65,12.基金项目
国家部委基金资助项目 （）
