J6-Ⅲ模拟座舱屋角主动消声系统的研制  

Development of Corner Active Noise Control System on Simulated Cockpit of J6-Ⅲ Plane

作　　者：余文斌[1] 郭金洋[1] 陈晓勤[1] 郑学文[1] 

机构地区：[1]空军航空医学研究所,北京100036

出　　处：《航天医学与医学工程》2011年第1期57-60,共4页Space Medicine & Medical Engineering

摘　　要：目的研制对低频噪声有较好消声作用的J6-Ⅲ模拟座舱屋角主动消声系统。方法通过将简正振动模式分析理论应用于驾驶舱内声场分析研究中,确定消声系统的传输曲线,利用声电反馈控制系统来实现,并在歼6-Ⅲ歼击机模拟座舱进行实际测量。结果系统对歼6-Ⅲ飞机模拟座舱内500 Hz窄带噪声主动消声效果超过8 dB;作用范围65 Hz～1000 Hz。结论主动消声对低频噪声作用明显,本系统推广范围大,但是实际应用尚有差距。Objective To develop the corner active noise control（ANC） system on the simulated cockpit of J6-Ⅲ plane for further eliminating low frequency noise.Methods Based on the normal mode analytic theory,the sound field of simulated cockpit was analyzed and studied.The transfer curve of active noise control system was determined.This system was realized with the acoustic-electric feedback control system.Then it was practically tested in the simulated cockpit of J6-Ⅲ plane.Results This ANC system could reduce random noise over 8dB in 500 Hz and work from 65 Hz to 1000 Hz.Conclusion The effect of this ANC system on low frequency noise is obvious.It can work well in many fields,but there is a distance to be applied in practical flight arm.

关 键 词：有源噪声控制 低频噪声 声电反馈 座舱 

分 类 号：R857.12[医药卫生—航空、航天与航海医学]