摘要
建立了复合材料舵面的颤振分析模型,并计算了其常温下的颤振速度,研究了铺层对复合材料舵面颤振特性的影响,结果表明:复合材料舵面在海平面上的颤振速度为575.8 m/s,舵面的颤振耦合形式为典型的弯曲和扭转模态耦合。舵面颤振速度随飞行高度的升高而升高,且与其前两阶频率的差相关,当舵面前两阶频率差增大时,舵面的颤振速度也相应增大;通过调节舵面的铺层角度、铺层比例及铺层顺序来增大舵面的前两阶频率差,可提高舵面的颤振速度。
The flutter analysis model of composite rudder is established,and the flutter velocity at ambient temperature is calculated,the influence of the layup scheme on the flutter characteristics of the composite rudder is studied.The results show that the flutter velocity of the composite rudder is 575.8 m/s at sea level,and flutter coupling form of the composite rudder is a typical bending and torsional modal coupling.The flutter velocity of composite rudder increases with the flight height,and it is related to the frequency difference between the first-order modal and the second-order modal.When the frequency difference between the first-order modal and the second-order modal increases,the flutter velocity of the composite rudder increases correspondingly.The frequency difference between the first-order modal and the second-order modal is increased by adjusting the layup angle,layup proportion and layup sequence,thereby the flutter velocity of the composite rudder can be increased.
作者
申鹏飞
吴炜
黄益民
魏仲委
罗楚养
潘利剑
Shen Pengfei;Wu Wei;Huang Yimin;Wei Zhongwei;Luo Chuyang;Pan Lijian(Collaborative Innovation Center for Civil Aviation Composites,Donghua University,Shanghai 201620,China;China Airborne Missile Academy,Luoyang 471009,China;Aviation Key Laboratory of Science and Technology on Airborne Guided Weapons,Luoyang 471009,China)
出处
《航空兵器》
CSCD
北大核心
2021年第4期97-102,共6页
Aero Weaponry
基金
航空科学基金项目(20180112008)
青年人才托举工程(2016QNRC001)
东华大学青年教师科研启动基金项目。
关键词
空空导弹
复合材料
舵面
颤振
铺层
air-to-air missile
composite
rudder
flutter
layup
