摘要
利用统计能量分析方法进行飞机舱内噪声预计时,为保证预计的精度,需在仿真模型中建立座椅子系统。为达到简化模型、提高建模效率的目的,建立座椅吸声量与飞机座舱声空间子系统阻尼损耗因子的关系,从而提出基于赛宾公式及统计能量分析原理的简化方法,并利用机身声学试验平台,对该方法进行验证。
When interior noise of aircraft to be predicted with statistical energy analysis （SEA） method, subsystems of seats should be modeled in simulative models for enough precision. In order to simplify models and improve efficiency of modeling, the relationship between sound absorption of seats and damping loss factor of sound cavity subsystem of cabin was presented. Consequently, simplification method based on formula and SEA theory was proposed. With the use of fuselage acoustic test facility, the simplification method was validated.
出处
《噪声与振动控制》
CSCD
北大核心
2008年第4期109-111,135,共4页
Noise and Vibration Control
关键词
声学
噪声预计
统计能量分析
座椅
吸声
阻尼损耗因子
acoustics
noise prediction
statistical energy analysis
seat
sound absorption
damping loss factor
