高速飞行复合式直升机旋翼受上洗时的驱转特性

doi:10.7527/S1000-6893.2023.29061

Abstract

Abstract:

To study the driving rotation characteristics of a compound helicopter’s rotor undergoing the upwash in high-speed flight， a compound helicopter trim model is established on the basis of an existing helicopter flight performance model. With a helicopter example similar to X³ helicopter， the effects of lift share and variable rotor speed on the flight performance of the rotor and helicopter are analyzed in the driving rotation state undergoing the upwash. The results show that the energy absorbed from the airflow increases with the increase of speed due to the upwash， and the rotor drag power increases. The torque distribution is different from that in low speed flight. The blade elements that produce the driving torque increase significantly， and the area with larger resistance torque shifts from the retreating blade to the advancing blade. Decreasing the incidence angle of the wing reduces the proportion of the wing lift， which results in an increase in the rotor drag power. This is beneficial for the rotor to absorb energy from the airflow and improve the performance of the rotor and helicopter as the rotor undergoes an upwash flow. At 400 km/h， the rotor drag power with the wing incidence angle of 8° is 11.2% higher than that of 10°， and the lift-to-drag ratios of the rotor and helicopter increase by 35.7% and 2.6%， respectively. In medium- or high-speed flight， excessive reduction of the rotor speed causes the fuselage to pitch up， and the energy absorbed from the airflow by the rotor increases. As the flight speed is larger than 340 km/h， the fuselage remains horizontal， and the rotor drag power is reduced. Reducing the rotor speed is not beneficial for the airflow to provide energy. However， reducing the rotor speed of the compound helicopter in high-speed flight is beneficial for reducing the rotor power consumption and improving the flight performance.

Key words: compound helicopter, rotor, driving rotation, upwash, lift share, variable rotor speed, lift-to-drag ratio

CLC Number:

V211.52

Yilan ZENG, Dong HAN, Zhuangzhuang LIU, Xin ZHOU. Driving rotation characteristics of a compound helicopter’s rotor undergoing upwash in high⁃speed flight[J]. Acta Aeronautica et Astronautica Sinica, 2024, 45(9): 529061.

Figures/Tables 18

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References 29

1	吴希明，吕乐丰，张广林. 民用高速旋翼飞行器发展战略分析及关键技术展望［J］. 南京航空航天大学学报， 2022， 54（5）： 827-835.
	WU X M， LV L F， ZHANG G L. Development strategy analysis and key technology prospect of civil high-speed rotorcraft［J］. Journal of Nanjing University of Aeronautics & Astronautics， 2022， 54（5）： 827-835 （in Chinese）.
2	李春华，樊枫，徐明. 共轴刚性旋翼构型高速直升机发展研究［J］. 航空科学技术， 2021， 32（1）： 47-52.
	LI C H， FAN F， XU M. The development overview of coaxial rigid rotor helicopter［J］. Aeronautical Science & Technology， 2021， 32（1）： 47-52 （in Chinese）.
3	李建波. 复合式直升机技术发展分析［J］. 南京航空航天大学学报， 2016， 48（2）： 149-158.
	LI J B. Progress of compound helicopter technology［J］. Journal of Nanjing University of Aeronautics & Astronautics， 2016， 48（2）： 149-158 （in Chinese）.
4	黄明其，徐栋霞，何龙，等. 常规旋翼构型复合式高速直升机发展概况及关键技术［J］. 航空动力学报， 2021， 36（6）： 1156-1168.
	HUANG M Q， XU D X， HE L， et al. Development overview and key technologies of high speed hybrid helicopter with single main rotor［J］. Journal of Aerospace Power， 2021， 36（6）： 1156-1168 （in Chinese）.
5	WANG X， BAUKNECHT A， MAURYA S， et al. Slowed hingeless rotor wind tunnel tests and validation at high advance ratios［J］. Journal of Aircraft， 2021， 58（1）： 153-166.
6	REDDINGER J P， GANDHI F， KANG H. Performance and hub vibrations of an articulated slowed-rotor compound helicopter at high speeds［C］∥ Proceedings of the 71st Annual Forum of AHS International. Fairfax： American Helicopter Society， 2015： 1345-1361.
7	NAGARAJ V T， CHOPRA I. Dynamics considerations for high speed flight of compound helicopters［C］∥ Proceedings of the 58th Annual Forum of AHS International. Fairfax： American Helicopter Society， 2002： 1971-1804.
8	BERRY B， CHOPRA I. Performance and vibratory load measurements of a slowed-rotor at high advance ratios［C］∥ Proceedings of the 68th Annual Forum of AHS International. Fairfax： American Helicopter Society， 2012： 1293-1305.
9	YEO H， JOHNSON W. Aeromechanics analysis of a heavy lift slowed-rotor compound helicopter［J］. Journal of Aircraft， 2007， 44（2）： 501-508.
10	FLOROS M W， JOHNSON W. Performance analysis of the slowed-rotor compound helicopter configuration［J］. Journal of the American Helicopter Society， 2009， 54（2）： 22002-2200212.
11	YEO H， JOHNSON W. Optimum design of a compound helicopter［J］. Journal of Aircraft， 2009， 46（4）： 1210-1221.
12	刘超凡，朱清华，刘佳. 复合式高速直升机旋翼下洗流对机翼的气动影响分析［J］. 航空工程进展， 2023， 14（1）： 38-46.
	LIU C F， ZHU Q H， LIU J. Aerodynamic effect analysis of rotor downwash on wings of composite high-speed helicopter［J］. Advances in Aeronautical Science and Engineering， 2023， 14（1）： 38-46 （in Chinese）.
13	万佳，陈铭. 机翼位置对复合式直升机旋翼-机翼干扰的影响［J］. 北京航空航天大学学报， 2009， 35（5）： 519-522.
	WAN J， CHEN M. Influence of wing location on rotor-wing interaction of compound helicopter［J］. Journal of Beijing University of Aeronautics and Astronautics， 2009， 35（5）： 519-522 （in Chinese）.
14	孔卫红，陈仁良. 反流区对复合高速直升机旋翼气动特性的影响［J］. 航空学报， 2011， 32（2）： 223-230.
	KONG W H， CHEN R L. Effect of reverse flow region on characteristics of compound high speed helicopter rotor［J］. Acta Aeronautica et Astronautica Sinica， 2011， 32（2）： 223-230 （in Chinese）.
15	王焕瑾，高正. 旋翼自转状态在高速直升机升力转移过程中的应用［J］. 南京航空航天大学学报， 2002， 34（1）： 1-5.
	WANG H J， GAO Z. Application of rotor autoratation to lift transfer［J］. Journal of Nanjing University of Aeronautics & Astronautics， 2002， 34（1）： 1-5 （in Chinese）.
16	林清，刘慧英，刘娟霞，等. 降速自转旋翼－机翼复合飞行器飞行特性研究［J］. 飞行力学， 2021， 39（5）： 31-37.
	LIN Q， LIU H Y， LIU J X， et al. Research on the flight characteristic of a slowed rotor compound aircraft［J］. Flight Dynamics， 2021， 39（5）： 31-37 （in Chinese）.
17	GUDMUNDSSON S. General aviation aircraft design： Applied methods and procedures［M］.Oxford： Butterworth-Heinemann， 2014：379-398.
18	SEKULA M K， GANDHI F. Effects of auxiliary lift and propulsion on helicopter vibration reduction and trim［J］. Journal of Aircraft， 2004， 41（3）： 645-656.
19	原昕，招启军，赵国庆. 轴流状态对转螺旋桨气动性能高效预测方法［J/OL］. 航空动力学报，（2023-04-18）［2023-05-28］. .
	YUAN X， ZHAO Q J， ZHAO G Q. Efficient aerodynamic prediction method of contra-rotating propellers in axial flight［J/OL］. Journal of Aerospace Power，（2023-04-18）［2023-05-28］. .
20	刘沛清. 空气螺旋桨理论及其应用［M］. 北京：北京航空航天大学出版社， 2006： 56-63.
	LIU P Q. Air propeller theory and its applications［M］. Beijing： Beihang University Press， 2006： 56-63 （in Chinese）.
21	JOHNSON W. Rotorcraft aeromechanics［M］. Cambridge： Cambridge University Press， 2013： 39-60.
22	PADFIELD G. Helicopter flight dynamics ［M］.2nd ed. Washington， D. C.： AIAA， 2007： 115-119.
23	PETERS D A， HAQUANG N. Technical note： Dynamic inflow for practical applications［J］. Journal of the American Helicopter Society， 1988， 33（4）： 64-68.
24	PITT D M， PETERS D A. Theoretical prediction of dynamic-inflow derivatives［C］∥ Sixth European Rotorcraft and Powered Lift Aircraft Form. Bristol： ERF， 1980： 1-18.
25	JOHNSON W. Helicopter theory［M］. Princeton： Princeton University Press， 1980： 760-767.
26	陈仁良，高正. 直升机飞行动力学［M］. 2版. 北京：科学出版社， 2019： 57-65.
	CHEN R L， GAO Z. Helicopter flight dynamics［M］. 2nd ed. Beijing： Science Press， 2019： 57-65 （in Chinese）.
27	YEO H， BOUSMAN W G， JOHNSON W. Performance analysis of a utility helicopter with standard and advanced rotors［J］. Journal of the American Helicopter Society， 2004， 49（3）： 250-270.
28	HILBERT K B. A mathematical model of the UH-60 helicopter： NASA-TM-85980［R］. Washington， D.C. ： NASA， 1984.
29	DAVIDS S J. Predesign study for a modern 4-bladed rotor for the RSRA： NANS-TM-CR-166155［R］. Washington， D. C. ： NASA， 1981.

参数	旋翼	螺旋桨
旋翼半径/m	5.965	1.5
额定转速/（rad·s^-1）	37.7	176
桨叶弦长/m	0.385	0.42
桨叶负扭/（°）	-10	-35
桨叶翼型	OA212/OA209	Clark-Y
桨叶片数	5	5
挥舞铰偏置量/m	0.23
单位桨叶质量/（kg·m^-1）	6.74
距机身中轴线距离/m	0	3.87

参数	机翼	平尾	垂尾
展长/m	6	4	1.65
弦长/m	1.2	0.34	0.34
安装角/（°）	8	2	0
翼型	NACA0012	NACA0012	NACA0012
距旋翼轴的距离/m	（0，0，1.735）	（5.3，0，1.735）	（5.3，±1.42，0）

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Driving rotation characteristics of a compound helicopter’s rotor undergoing upwash in high⁃speed flight

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