共轴刚性旋翼高速直升机前飞性能操纵策略影响

doi:10.7527/S1000-6893.2023.29256

Abstract

Abstract:

The coaxial rigid rotor high-speed helicopter based on the forward blade concept has a high maximum flight speed， but the cooperation of the coaxial rigid rotor and the propellor brings the problem of handling redundancy. To improve the flight performance of the high-speed helicopter， this paper carries out the analysis of the influence of the rotor/thrust blade control strategy. Firstly， a high-precision Computational Fluid Dynamics （CFD） method for predicting the aerodynamic forces of coaxial rigid rotor， propellor and fuselage is established. Secondly， a robust trim method for redundant control of coaxial rigid rotor/propellor is proposed based on CFD-Surrogate Model （SM）-Genetic Algorithm （GA）. On this basis， the influence of control strategies such as rotor/propellor forward thrust distribution， rotor lift offset and fuselage attitude on the flight performance of high-speed helicopter is analyzed， and the control strategies that can effectively improve the maximum forward flight speed and practical lift limit of high-speed helicopter are obtained. The results show that with fixed fuselage pitch angle， the maximum horizontal flight speed of the high-speed helicopter can be increased by 10.78% when a small part of the forward thrust is distributed by the rotor. When flying at sea level， the helicopter has the maximum forward speed when the lift offset of the rotor is 0.3， and has the maximum service ceiling when the lift offset is 0.2. When the fuselage pitch angle is -1°， the high-speed helicopter has the maximum forward flight speed and service ceiling. If the fuselage pitch angle is too large or too small， the forward flight performance will be reduced.

Key words: high speed helicopter, coaxial rigid rotor, flight performance, control strategy, CFD method, genetic algorithm, surrogate model

CLC Number:

V212.4

Zhuangzhuang CUI, Xin YUAN, Guoqing ZHAO, Simeng JING, Qijun ZHAO. Influence of control strategy on forward flight performance of coaxial rigid rotor high⁃speed helicopters[J]. Acta Aeronautica et Astronautica Sinica, 2024, 45(9): 529256.

Figures/Tables 25

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References 27

1	CHENEY M C. The ABC helicopter［J］. Journal of the American Helicopter Society， 1969， 14（4）： 10-19.
2	KWON Y M， PARK J S， WIE S Y， et al. Aeromechanics analyses of a modern lift-offset coaxial rotor in high-speed forward flight［J］. International Journal of Aeronautical and Space Sciences， 2021， 22（2）： 338-351.
3	OZDEMIR G T. In-flight performance optimization for rotorcraft with redundant controls［D］. Michigan： The Pennsylvania State University， 2013： 48-49.
4	CAO Y H， WANG M S， LI G Z. Flight dynamics modeling， trim， stability， and controllability of coaxial compound helicopters［J］. Journal of Aerospace Engineering， 2021， 34（6）： 04021084.
5	QIU Y Q， LI Y， LANG J X， et al. Dynamics analysis and control of coaxial high-speed helicopter in transition flight‍［J］. Aerospace Science and Technology， 2023， 137： 108278.
6	FERGUSON K， THOMSON D. Performance comparison between a conventional helicopter and compound helicopter configurations［J］. Proceedings of the Institution of Mechanical Engineers， Part G： Journal of Aerospace Engineering， 2015， 229（13）： 2441-2456.
7	SAITO S， AZUMA A. A numerical approach to co-axial rotor aerodynamics［C］∥Seventh European Rotorcraft and Powered Lift Aircraft Forum. Garmisch-Partenkirchen： Federal Republic of Germany， 1981.
8	VALKOV T V. Aerodynamic loads computation on coaxial hingeless helicopter rotors［C］∥ Proceedings of the 28th Aerospace Sciences Meeting. Reston： AIAA， 1990.
9	KIM H W， KENYON A R， BROWN R E， et al. Interactional aerodynamics and acoustics of a hingeless coaxial helicopter with an auxiliary propeller in forward flight［J］. The Aeronautical Journal， 2009， 113（1140）： 65-78.
10	佘明人. 共轴刚性旋翼高速直升机飞行动力学建模及飞行特性研究［D］. 南京：南京航空航天大学， 2021： 11-19.
	SHE M R. Research on the flight dynamics modeling and flight characteristics of a coaxial rigid rotor high-speed helicopter［D］. Nanjing： Nanjing University of Aeronautics and Astronautics， 2021： 11-19 （in Chinese）.
11	张银. 复合式共轴刚性旋翼直升机气动干扰及飞行特性分析［D］. 南京：南京航空航天大学， 2014： 47-49.
	ZHANG Y. Research on aerodynamic interaction and flight characteristics of compound helicopter with rigid coaxial rotor［D］. Nanjing： Nanjing University of Aeronautics and Astronautics， 2014： 47-49 （in Chinese）.
12	袁野，陈仁良，李攀. 基于涡环尾迹模型的共轴刚性旋翼直升机飞行动力学建模［J］. 航空学报， 2018， 39（3）： 121564.
	YUAN Y， CHEN R L， LI P. Flight dynamic modelling for coaxial rigid rotor helicopter using vortex-ring wake model［J］. Acta Aeronautica et Astronautica Sinica， 2018， 39（3）： 121564 （in Chinese）.
13	卢丛玲，祁浩天，徐国华. 升力偏置对共轴刚性旋翼前飞气动特性的影响［J］. 航空学报， 2019， 40（11）： 122906.
	LU C L， QI H T， XU G H. Influence of lift offset on rigid coaxial rotor aerodynamic characteristics in forward flight［J］. Acta Aeronautica et Astronautica Sinica， 2019， 40（11）： 122906 （in Chinese）.
14	原昕，招启军，朱正，等. 前飞速度和升力偏置量对共轴刚性旋翼气动特性影响分析［J］. 南京航空航天大学学报， 2019， 51（2）： 213-219.
	YUAN X， ZHAO Q J， ZHU Z， et al. Flow-field characteristics measurements of coaxial rigid rotor in forward flight［J］. Journal of Nanjing University of Aeronautics & Astronautics， 2019， 51（2）： 213-219 （in Chinese）.
15	HAYAMI K， SUGAWARA H， YUMINO T， et al. CFD analysis on the performance of a coaxial rotor with lift offset at high advance ratios［J］. Aerospace Science and Technology， 2023， 135： 108194.
16	ZHAO Q J， ZHAO G Q， WANG B， et al. Robust Navier-Stokes method for predicting unsteady flowfield and aerodynamic characteristics of helicopter rotor［J］. Chinese Journal of Aeronautics， 2018， 31（2）： 214-224.
17	WANG B， CAO C K， ZHAO Q J， et al. Aeroacoustic characteristic analyses of coaxial rotors in hover and forward flight［J］. International Journal of Aeronautical and Space Sciences， 2021， 22（6）： 1278-1292.
18	招启军，张威，原昕，等. 共轴刚性旋翼气动外形优化设计［J］. 南京航空航天大学学报， 2019， 51（2）： 160-165.
	ZHAO Q J， ZHANG W， YUAN X， et al. Optimization design of coaxial rotor aerodynamic planform［J］. Journal of Nanjing University of Aeronautics & Astronautics， 2019， 51（2）： 160-165 （in Chinese）.
19	NAGASHIMA T， SHINOHARA K， BABA T. A flow visualization study for the tip vortex geometry of the coaxial counter rotating rotor in hover［J］. Technical Note， 1977， 25（284）： 442-445.
20	COLEMAN C P. A survey of theoretical and experimental coaxial rotor aerodynamic research： NASA/TP-1997-3675［R］. Washington， D.C.： NASA， 1997.
21	DINGELDEIN R C. Wind-tunnel studies of the performance of multirotor configurations： NACA/TN-1954-3236［R］. Washington， D.C.： NACA， 1954.
22	EVANS A J， LINER G. A wind-tunnel investigation of the aerodynamic characteristics of a full-scale sweptback propeller and two related straight propellers： NACA/RM-1951-L5005［R］. Washington， D.C.： NACA， 1951.
23	FREEMAN C E， MINECK R E. Fuselage surface pressure measurements of a helicopter wind-tunnel model with a 3.15-meter diameter single rotor： NASA/TM-1979-80051［R］. Washington， D.C.： NASA， 1979.
24	WANG B， YUAN X， ZHAO Q J， et al. Geometry design of coaxial rigid rotor in high-speed forward flight［J］. International Journal of Aerospace Engineering， 2020， 2020： 6650375.
25	陈仁良，高正. 直升机飞行动力学［M］. 北京：科学出版社， 2003： 4-8.
	CHEN R L， GAO Z. Helicopter flight dynamics［M］. Beijing： Science Press， 2003： 4-8 （in Chinese）.
26	JING S M， ZHAO Q J， ZHAO G Q， et al. Multi-objective airfoil optimization under unsteady-freestream dynamic stall conditions［J］. Journal of Aircraft， 2023， 60（2）： 293-309.
27	BALLIN M. Validation of a real-time engineering simulation of the UH-60A helicopter： NASA-TM88360［R］. Washington， D.C.： NASA， 1987.

参数	数值
翼型	NACA0012
桨叶片数	2×2
旋翼半径/m	0.38
旋翼转速/（rad·s^-1）	324.5
桨叶平面形状	矩形
旋翼间距/m	0.08

变量	取值范围
总距/（°）	［0，20］
总距差动/（°）	［-5，5］
纵向周期变距/（°）	［-10，10］
纵向周期变距差动/（°）	［-1，1］
横向周期变距/（°）	［-6，6］
横向周期变距差动/（°）	［0，5］
前进比	［0，0.7］

速度/（m·s^-1）	分配系数最小值
78.8	0
80	0.034
90	0.24
100	0.38
110	0.49
120	0.57
130	0.63
140	0.68

分配系数	实用升限/m	提升比例/%
1.0	7 846.34
0.9	7 861.25	0.19
0.8	7 943.43	1.24
0.7	7 963.73	1.50

升力偏置量	实用升限/m
0.1	7 781.13
0.2	7 945.19
0.3	7 701.75
0.4	7 661.50

Influence of control strategy on forward flight performance of coaxial rigid rotor high⁃speed helicopters

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俯仰角/（°）	实用升限/m	提升比例/%
-3	7 765.99	-1.04
-2	7 805.34	-0.529
-1	7 960.13	1.43
0	7 846.66
1	7 736.20	-1.43
2	7 711.99	-1.75
3	7 676.17	-2.22

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