摘要
为了研究波浪海面地效对于水陆两栖飞机气动特性的影响规律,本文利用活动波浪地板试验技术开展了水陆两栖飞机活动波浪地板地效的风洞试验研究。试验结果表明,活动波浪地板运行过程中气动力载荷随时间呈非定常周期性变化,随离地高度降低,升力和低头力矩的相对波动幅度和平均值均增加,与地效飞行器和高海况机翼的研究结论一致;活动波浪地板状态下升降舵效率大于水平地板状态的相应结果,而其对应方向舵效率和副翼效率则与水平地板状态的方向舵效率和副翼效率相当。
In order to investigate the influences of the ground effect of wavy sea surface on the aerodynamic characteristics of amphibious aircraft,this paper carried out the wind tunnel test on the ground effect of moving wavy floor using the experimental technique of moving wavy floor.The results imply that the aerodynamic load changes periodically with time in the running process of moving wavy floor.With the decrease of ground clearance,both the averaged value and relative fluctuating amplitude of lift and nose-down pitching moment are increased,which are consistent with the situations of the WIG craft and the airfoil at high grade sea condition.Further,the elevator efficiency under the situation of moving wavy floor is larger than that with flat floor,and both rudder efficiency and aileron efficiency are nearly equal to those with flat floor.
作者
陈诚
高立华
孙卫平
段旭鹏
任怀勋
Chen Cheng;Gao Lihua;Sun Weiping;Duan Xupeng;Ren Huaixun(China Aerodynamics Research and Development Center,Mianyang 621000,China;State Key Laboratory of Aerodynamics,China Aerodynamics Research and Development Center,Mianyang 621000,China;China Aviation Industry General Aircraft Co.,Ltd.,Zhuhai 519000,China)
出处
《气动研究与试验》
2023年第5期113-118,共6页
Aerodynamic Research & Experiment
关键词
水陆两栖飞机
气动特性
风洞试验
活动波浪地板
地面效应
失速
amphibious aircraft
aerodynamic characteristic
wind tunnel test
moving wavy floor
ground effect
stall
