直升机气动噪声抑制与飞行测试研究进展  

Progress in Suppression and Flight Measurement for Helicopters Noise

作　　者：邓景辉[1] 朱文庆 张威[1] 曹荣富 DENG Jinghui;ZHU Wenqing;ZHANG Wei;CAO Rongfu(China Helicopter Research&Development Institute,Jingdezhen 333001,China)

机构地区：[1]中国直升机设计研究所,景德镇333001

出　　处：《南京航空航天大学学报》2023年第2期169-185,共17页Journal of Nanjing University of Aeronautics & Astronautics

摘　　要：直升机在军用和民用领域发挥着越来越重要的作用,新的旋翼技术和构型不断出现,对直升机噪声研究需不断深入和更新。本文首先概述了旋翼(尾桨)的噪声产生机理和传播规律,并扩展到存在复杂气动或噪声干扰的共轴刚性旋翼高速直升机和倾转旋翼机;接下来介绍了直升机飞行噪声测量进展,已发展成多种测量方式作为降噪设计的验证和评估手段;然后综述了降噪设计技术的发展现状:旋翼被动降噪技术已在直升机领域得到大量应用,直升机噪声水平稳步降低;变转速控制技术和低噪声轨迹优化技术逐渐走向成熟;旋翼主动降噪技术更多地停留在实验室阶段,尚需在驱动装置、控制规律等方面开展进一步研究。最后总结了直升机降噪设计现状,并展望了未来发展方向。Helicopters have been playing an increasingly important role in military and civilian activities.The review of helicopter noise reduction is needed to be updated,because new technologies are constantly emerging.Firstly,the mechanism and propagation properties of the rotor(tail rotor)noise are described,and the co‑axial rigid rotor high‑speed helicopter and the tilting rotor are introduced.There are complicated aerodynamic or acoustic interaction in two new configuration helicopters.Secondly,the progress of helicopter flight noise measurement,as the verification approach for low noise design technologies,is demonstrated.Then,the design technologies for silent helicopters are summarized.The passive noise reduction strategies have been intensively implemented,and reduced helicopter radiated noise level greatly.The strategies of variable rotor speed and low noise trajectory are gradually maturing.However,the active control technologies are in the laboratory stage,and need further research on driving devices and control parameters et al.The final part summarizes the state of art for low noise control strategies in helicopters,and outlooks the development trend.

关 键 词：直升机气动噪声 被动降噪 主动降噪 变转速设计 低噪声轨迹优化 

分 类 号：V211.3[航空宇航科学与技术—航空宇航推进理论与工程]