建立了压电纤维复合材料桨叶的非线性动力学模型. 在此基础上, 研究了压电纤维铺层对复合材料桨叶固有频率和桨叶扭转运动阻尼特性的影响. 计算结果表明: 桨叶扭转角变化量随着压电纤维施加电压的增加而增大;当电压为1000 V时, 桨尖扭转角变化量大约为2°. 压电纤维铺层对桨叶固有频率几乎没有影响, 其存在不会改变原设计复合材料桨叶的频率分布. 当压电纤维铺设方向与桨叶展向成45°时, 其对桨叶扭转方向的阻尼特性有着很大的影响;采用适当的电压控制, 可以明显增加扭转方向的阻尼.
A nonlinear dynamic model of the composite rotor blade with piezoelectric fibers was developed. The effect of the piezoelectric fibers on the frequencies and torsional damping of a composite rotor blade was investigated. The numerical results show that the change of the twist angle increases with the applied voltage increasing. When the applied voltage is equal to 1000 V, the increment of the twist angle is about 2° . Change in blade frequencies is very little with the layup of the piezoelectric fibers. When the piezoelectric fibers are arranged at 45. to the length of blade, it has a powerful effect on the damping of the torsion with the controlled voltage applied to piezoelectric fibers.
参考文献
| [1] | 向锦武,张晓谷.直升机旋翼桨叶气弹优化减振设计方法[J].航空动力学报,1999,14(2):212-214.Xiang Jinwu,Zhang Xiaogu.Aeroelastic optimization of a helicopter rotor with single-cell composite blades for vibration reduction[J].Journal of Aerospace Power,1999,14(2);212-214. |
| [2] | Hong C H,Chopra I.Aeroelastic stability analysis of a composite rotor blade[J].Journal of the American Helicopter Society,1985.30(2):57-67. |
| [3] | Panda B.Chopra I.Dynamics of composite rotor blades in forward flight[J].Vertica,1987,11(1/2):107-209. |
| [4] | 尹维龙,向锦武.弹性耦合对直升机复合材料桨叶稳定性的影响[J].复合材料学报,2006,23(4):143-148.Yin Weilong,Xiang Jinwu.Stability analysis for helicopter composite rotor blades with elastic coupling[J].Acta Materiae Compositae Sinica,2006,23(4):143-148. |
| [5] | Yuan K A,Friedmann P P.Venkatesan C.Aeroelastic behavior of composite rotor blades with swept tips[C]//48th Annual Forum of the AHS.Alexandria:American Helicopter Society,1992:1039-1059. |
| [6] | Smith E C,Chopra I.Aeroelastic response and blade loads of a composite rotor in forward flight,AIAA-92-2566-CP[R].New York:AIAA,1992. |
| [7] | 尹维龙,向锦武.弹性耦合对复合材料旋翼前飞气弹响应及载荷的影响[J].航空学报,2007,28(3):605-609.Yin Weilong,Xiang Jinwu.Aeroelastic response and hub load of composite hingeless rotor in forward flight with elastic couplings[J].Acta Aeronautica et Astronautica Sinica,2007,28(3):605-609. |
| [8] | 尹维龙.复合材料旋翼多自由度耦合气动弹性稳定性研究[D].北京:北京航空航天大学,2007. |
| [9] | 周国庆,卢德军,杨卫东.主动扭转智能旋翼模型试验研究[J].直升机技术,2007,151(3):81-87.Zhou Guoqing,Lu Dejun,Yang Weidong.Wind tunnel testing of active twist smart rotor[J].Helicopter Technique,2007,151(3):81-87. |
| [10] | Pearson J T,Goodall R M,Lyndon I.Active control ofhelicopter vibration[J].Computing ＆ Control Engineering Journal,1994,5(6):277-284. |
| [11] | Korathar N A,Chopra I.Analysis and testing of Mach sacled rotor with the trailing edge flaps[J].AIAA Journal,2000,38(7):1113-1121. |
| [12] | Cesnik C E S,Shin Sang-Joon.On the twist performance of a multiple-cell active helicopter blade[J].Smart Materials and Structures,2001,10(1):53-61. |
| [13] | Friedrich K S,Donald J M.Design of a smart material actuator for rotor control[J].Smart Materials and Structures,1997,6(3):223-234. |
| [14] | 唐纪哗,黄海,夏人伟.压电复合材料层合板自适应结构的振动控制[J].计算力学学报,2000,17(4):441-446.Tang Jiye,Huang Hal,Xia Renwei.Vibration control of adaptive structure using composite laminated piezoelectric element[J].Chinese Journal of Computational Mechanics,2000,17(4):441-446. |
| [15] | Choi S C,Park J S,Kim J H.Vibration control of pre-twisted rotating composite thin-walled beams with piezoelectric fiber composites[J].Journal of Sound and Vibration,2007,300(1/2):176-196. |
| [16] | Choi S C,Park J S,Kim J H.Active damping of rotating composite thin-walled beams using MFC actuators and PVDF sensors[J].Composite Structures,2006,76(4):362-374. |
| [17] | 赵寿根,程伟,管德.1-3型压电纤维主动叠层板扭转特的研究[J].航空学报,2006,27(4):624-629.Zhao Shougen,Cheng Wei,Guan De.Torsion characteristics of active laminates with 1-3 PFC layers[J].Acta Aeronautica et Astronautica Sinica,2006,27(4):624-629. |
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