哈尔滨工程大学学报2011，Vol.32Issue(1)：90-97,8.DOI:10.3969/j.issn.1006-7043.2011.01.017
柱面多参考统计最优近场声全息研究
Investigation on cylindrical multi-reference statistically optimized near-field acoustical holography
摘要
Abstract
Cylindrical multi-reference statistically optimized near-field acoustical holography technology was proposed while considering features of the underwater machinery noise sources of naval vessels. These features include concentrative distribution, strong correlation, and marked coupling. The aim was to construct technology which could visually locate the noise sources of underwater machinery. The proposed technology is composed of multi-reference point configuration, partial sound decomposition, and SONAH. To use this technology, numerical simulations were carried out by locating multi-point correlative noise sources and configuring multi-reference points, and a corresponding underwater near-field acoustical holography model experiment was implemented. Results of both the numerical simulations and the experiment show that the proposed technology can visually locate noise sources for underwater cylinder shell structures, and when choosing appropriate multi-reference configuration, e.g. multi-reference points being close to and enclosing the noise source as much as possible, the reconstructed sound field results will be optimized.关键词
近场声全息/统计最优近场声全息/噪声源定位/声场重构Key words
near-field acoustical holography/ statistically optimized NAH/ noise source localization/ sound field reconstruction分类
交通工程引用本文复制引用
程广福,肖斌,王志伟,刘文帅..柱面多参考统计最优近场声全息研究[J].哈尔滨工程大学学报,2011,32(1):90-97,8.基金项目
国防科学技术工业委员会基础研究基金资助项目(40113070202). （40113070202）
