噪声与振动控制2016，Vol.36Issue(3)：76-80,5.DOI:10.3969/j.issn.1006-1335.2016.03.016
约束层阻尼对飞机壁板隔声特性的影响
Effects of Constrained Layer Damping Patches on the Sound Insulation Characteristics of Aircraft Panels
摘要
Abstract
The constrained layer damping (CLD) is a typical material which is extensively applied to suppress vibration and noise in aircraft engineering. In order to quickly predict the effects of CLD patches on the sound insulation of aircraft panels, the CLD parameters, such as the mass distribution of each layer, the damping loss factor and the thickness of the constrained layer, on the sound insulation performance of a small uniform panel are investigated by comparing the sound transmission loss measured and calculated in the environment of a sound impedance tube. Then, the study of a real aircraft panel with CLD patches attached is carried out to verify the effectiveness of the prediction method. Hence, the relationship between the CLD parameters and the sound transmission loss of the composite panel measured in the sound impedance tube can be applied to predict the sound insulation performance of the aircraft panels.关键词
声学/约束层阻尼/隔声量/飞机壁板/传声损失Key words
acoustics/constrained layer damping (CLD)/sound insulation/aircraft panel/sound transmission loss分类
通用工业技术引用本文复制引用
冯梓鑫,韩峰,冯盟,王晓乐,黄震宇..约束层阻尼对飞机壁板隔声特性的影响[J].噪声与振动控制,2016,36(3):76-80,5.基金项目
航空科学基金资助项目 （）
