直升机舱内噪声特性分析  

Analysis of Noise Characteristics in Helicopter Cabin

作　　者：殷鹏 黄斌根[1] 刘忠超[1] YIN Peng;HUANG Bingen;LIU Zhongchao(China Helicopter Research and Development Institute,Jingdezhen 333001,China)

机构地区：[1]中国直升机设计研究所

出　　处：《直升机技术》2019年第4期28-31,共4页Helicopter Technique

摘　　要：通过试验测量某型直升机多个飞行状态下的舱内噪声数据,计算了A计权加权的噪声倍频程声压级,了解了直升机舱内噪声能量分布,确定了直升机舱内主要的噪声源。分析结果为该型直升机的噪声控制设计提供了有效的依据。The cabin noise data of a helicopter under multiple flight conditions was measured. A-weighted sound pressure level of noise was calculated,and the energy distribution of noise in the helicopter cabin was known;the main source of noise in the cabin was identified. The analysis result provides an effective basis for helicopter noise control.

关 键 词：直升机 舱内噪声 噪声特性 

分 类 号：V216.54[航空宇航科学与技术—航空宇航推进理论与工程] V244.13