飞机结构损伤声源定位算法分析  

Analysis of Acoustic Localization Algorithm for Aircraft Structural Damage

作　　者：韩凯[1] 冯建民[1] 贺谦[1] 孙志强[2] 

机构地区：[1]中国飞机强度研究所,全尺寸飞机结构静力/疲劳航空科技重点试验室,陕西西安710065 [2]国防科技大学机电工程与自动化学院,湖南长沙410073

出　　处：《工程与试验》2017年第1期1-4,共4页Engineering and Test

摘　　要：针对飞机强度试验中飞机结构损伤位置定位困难这一问题,采用基于时差(Time difference of Arrival,TDOA)的定位方法,比较了最小二乘法和最优化方法的定位效果,并对影响定位精度的因素进行了分析讨论,为工程应用提供理论依据。Aiming at the problem that it is difficult to obtain the damage localization of aircraft structure in aircraft strength test, a positioning method based on time difference of arrival （TDOA） is proposed. The effects of positioning of least square method and optimization method are compared, and the factors that affect the accuracy of positioning are discussed, which provides a theoretical basis for engineering applications.

关 键 词：时差定位方法 声阵列 最小二乘法 最优化方法 

分 类 号：V216.11[航空宇航科学与技术—航空宇航推进理论与工程]