中国舰船研究2017，Vol.12Issue(4)：140-146,7.DOI:10.3969/j.issn.1673-3185.2017.04.022
双层圆柱壳异常噪声源定位试验研究与应用
Research and application of abnormal noise source positioning experiment based on double cylindrical shell
摘要
Abstract
Aiming at the problem of frequent abnormal outboard noise in ships, an abnormal noise source location method is proposed, and a location model checked by the double cylindrical shell experiment is built. The model calculates the coordinates through the improved hyperbolic positioning method on the basis of the traditional hyperbolic positioning method, with the time-delay estimation by the generalized cross-correlation method as the input. In the process of the experiment, the outboard abnormal noise source is simulated by the percussion, comparing the positioning accuracy of the two methods and analyzing the influence of time-delay estimation on positioning accuracy. The results show that the hyperbolic positioning method based on double cylindrical shell can accurately locate the coordinates of abnormal noise sources, and is feasible for the abnormal outboard noise source positioning of ships. In addition, the method can provide theoretical guidance for the location of abnormal outboard noise sources.关键词
船舶/异常噪声/双曲定位方法/时延估计Key words
ships/abnormal noise/hyperbolic positioning method/time-delay estimation分类
交通工程引用本文复制引用
李瑞彪,徐荣武,崔立林,余文晶..双层圆柱壳异常噪声源定位试验研究与应用[J].中国舰船研究,2017,12(4):140-146,7.基金项目
国家自然科学基金资助项目(51209214) （51209214）
