舰船科学技术
艦船科學技術
함선과학기술
SHIP SCIENCE AND TECHNOLOGY
2015年
1期
79-83
,共5页
射线模型%声速梯度%声场分布%传播损失
射線模型%聲速梯度%聲場分佈%傳播損失
사선모형%성속제도%성장분포%전파손실
ray model%sound velocity%sound field distribution%transmission loss
目前，我国大部分声学测试试验在浅海海域进行，浅海声波导的多途效应、声速梯度的变化对声传播产生直接的影响。通过射线声学模型对不同频率的声源在浅海等声速梯度和温跃层声速梯度环境下辐射声场和声传播衰减特性进行仿真研究，给出声场分布图和传播损失变化曲线图，得到声场分布和传播损失随声源频率的变化规律。
目前，我國大部分聲學測試試驗在淺海海域進行，淺海聲波導的多途效應、聲速梯度的變化對聲傳播產生直接的影響。通過射線聲學模型對不同頻率的聲源在淺海等聲速梯度和溫躍層聲速梯度環境下輻射聲場和聲傳播衰減特性進行倣真研究，給齣聲場分佈圖和傳播損失變化麯線圖，得到聲場分佈和傳播損失隨聲源頻率的變化規律。
목전，아국대부분성학측시시험재천해해역진행，천해성파도적다도효응、성속제도적변화대성전파산생직접적영향。통과사선성학모형대불동빈솔적성원재천해등성속제도화온약층성속제도배경하복사성장화성전파쇠감특성진행방진연구，급출성장분포도화전파손실변화곡선도，득도성장분포화전파손실수성원빈솔적변화규률。
At present, the most acoustic test tests in shallow sea waters, the multiplicity of shallow water waveguide effect, the change of the velocity gradient have direct influence on sound propagation. Acoustic model based on the ray in shallow sea different frequencies of sound sources such as sound velocity gradient and the thermocline velocity gradient under the environment of radiation sound field and acoustic propagation attenuation characteristic has carried on the simulation research, sound field distribution and transmission loss curve is given, and the sound field distribution and transmission loss of changing with the frequency of the sound source.
