救生绞车对直升机机身气动性能的影响研究  

Research for Effects of a Lifesaving Whim System on Helicopter Fuselage Aerodynamic Characteristics

作　　者：赵维义[1] 

机构地区：[1]海军航空工程学院青岛分院,山东青岛266041

出　　处：《飞行力学》2006年第3期26-29,共4页Flight Dynamics

摘　　要：通过风洞试验,对救生绞车对直升机机身气动性能的影响进行了研究,通过对比加装救生绞车与未加装救生绞车时模型直升机在不同迎角、侧滑角、风速等条件下的气动力、力矩特性及纵、横向静导数,确定了救生绞车对直升机气动及操稳性能的影响,为有关人员提供了参考。The lifesaving whim system is an asymmetric-mounted external hanging device, mounting of which will bring about asymmetric aerodynamic forces and moments, thus affect the helicopter＇s aerodynamic characteristics, and control and stability. Through wind-tunnel tests, the longitudinal and lateral aerodynamic force and moment characteristics and static stabilities are compared with them after mounting of the lifesaving system in terms of different angle-of-attacks, sideslip angles and wind speeds, and finally the effects of the lifesaving whim system on helicopter＇s aerodynamic characteristics, and control and stability are determined.

关 键 词：直升机 救生绞车 气动性能 风洞试验 

分 类 号：V212.1[航空宇航科学与技术—航空宇航推进理论与工程]