典型舱音背景声在消声室中测试分析研究  

Measurement & Analysis of Typical Cockpit Background Sound in Anechoic Room

作　　者：程道来[1,2] 仪垂杰[1] 张志强[1] 刘志红[1] 姚红宇[3] 

机构地区：[1]青岛理工大学青岛市能源与环境装备工程技术研究中心,山东青岛266033 [2]上海应用技术学院建安学院,上海200233 [3]中国民航总局航空安全技术中心,北京100028

出　　处：《噪声与振动控制》2009年第3期104-106,135,共4页Noise and Vibration Control

基　　金：国家自然科学基金项目(60772149);教育部重点项目(206090)

摘　　要：基于全消声室良好的自由声场环境特性和声学测试原理,用LMS SC305对真实飞机和模拟机驾驶舱中的开关提示等4种典型舱音背景声在全消声室中进行测试分析应用研究。结果表明:基于全消声室测试的舱音特征谱值与理论计算结果一致,且比传统的人工译码`辩听和音频分析的结果准确,验证舱音特征谱值计算结果的可靠性。In virtue of good quality of the free sound field environment in anechoic room, four typical cockpit background sounds of the real aviating airplane and the training plane were measured and analyzed with the aid of LMS SC305 instrument and its software. Results indicate that the measured characteristic frequency spectrums of cockpit background sounds are in accordance with the computed ones. The measurement results are more accurate and reliable than those of the traditional distinguishing method with cockpit voice decoding and frequency analysis by human-audio.

关 键 词：声学 飞机 消声室 舱音背景声 谱分析 

分 类 号：V328[航空宇航科学与技术—人机与环境工程] TB53[理学—物理]