清污超声相控声源阵列设计  

Design of ultrasonic acoustic phased source arrayed for defouling

作　　者：周泽均[1] 欧阳清[1] 施冠羽[1] 

机构地区：[1]海军工程大学机械工程系,湖北武汉430033

出　　处：《舰船科学技术》2014年第12期172-177,共6页Ship Science and Technology

摘　　要：超声波在清污除垢方面较其他方式更具优势,且对物件的损伤更小。本文旨在充分利用超声波清污的优势而设计相控声源阵列,采用超磁致材料的活塞式声源作为阵列的阵元声源,应用相控阵聚焦技术以实现声聚焦和焦点的精确控制。计算得到阵列中心法向10 m处焦点声压级可达258 d B。对阵列合成声场进行仿真,得到波束的汇聚趋势和焦点声压的变化情况。Ultrasonic has more superiority and less harm to devices in defouling than other ways.This paper is aiming at designing an acoustic phased source arrayed by making full use of superiority of ultrasonic. Used piston sound source of giant magnetostrictive material to make elements of array sound source,and applied phased acoustic focusing technology for acoustic focusing and focus＇ exact control.Calculation gets the focus＇ voice press rank,witch on 10 m of normal vector on source arrayed＇ centre,reach 258 d B. A simulation is made for voice environment of acoustic source arrayed. And the result gets that trend of wave bundle gathering in one place and mutative condition of focus＇ voice press rank.

关 键 词：超声波 相控声源阵列 活塞式声源 相控阵聚焦 

分 类 号：TH122[机械工程—机械设计及理论]