海洋气泡幕降噪参数对降噪效果影响的数值分析  

Numerical Analysis on Influence of Parameters of Air Curtain Noise Reduction System on Noise Reduction Effect of Offshore Platform

作　　者：李巍[1] 范学君 孟凡昌[1] 刘松[2] 高誉宁 王延林 石艳芳[1] LI Wei;FAN Xuejun;MENG Fanchang;LIU Song;GAO Yuning;WANG Yanlin;SHI Yanfang(Offshore Oil Engineering Co.,Ltd.,Tianjin 300451,China;School of Naval Engineering,Dalian University of Technology,Dalian 116086,Liaoning,China)

机构地区：[1]海洋石油工程股份有限公司,天津300451 [2]大连理工大学船舶工程学院,辽宁大连116086

出　　处：《中国海洋平台》2022年第5期1-6,共6页China offshore Platform

基　　金：国家自然科学基金(编号:41806221,41676087);中央高校基本科研业务费(编号:DUT20JC27,DUT21JC34)。

摘　　要：为降低海洋平台打桩噪声,根据气泡幕对海洋平台打桩噪声的衰减作用,采用数值方法建立气泡幕降噪模型。改变气泡幕厚度、空气体积分数、通气量和气泡幕与噪声源距离,研究参数变化对降噪效果的影响。研究发现不同参数对降噪效果的影响不同,在工程实际中设计气泡幕时应综合考虑最优的降噪效果和最高的经济效益。In order to reduce the noise of offshore platform piling,according to the attenuation effect of air curtain on offshore platform piling noise,an air curtain noise reduction model is established by numerical simulation method.By changing the thickness of air curtain layer,air volume fraction,ventilation rate and distance between air curtain and noise source,the influence of the parameter changes on the noise reduction effect is studied.It is found that different parameters are of different influences on the noise reduction effect,and the optimal noise reduction effect and the highest economic benefit should be considered comprehensively when adopting air curtain noise reduction in engineering practice.

关 键 词：打桩噪声 气泡幕 降噪 

分 类 号：X707[环境科学与工程—环境工程] P75[天文地球—海洋科学]