Pan ZHOU, Renliang CHEN, Zhiming YU. Investigation of control strategy for quad⁃tilt⁃rotor aircraft in helicopter mode[J]. Journal of Aerospace Power, 2021, 36(10): 2036-2051.
DOI:
Pan ZHOU, Renliang CHEN, Zhiming YU. Investigation of control strategy for quad⁃tilt⁃rotor aircraft in helicopter mode[J]. Journal of Aerospace Power, 2021, 36(10): 2036-2051.DOI: 10.13224/j.cnki.jasp.20200384.
Investigation of control strategy for quad⁃tilt⁃rotor aircraft in helicopter mode
Quad⁃tilt⁃rotor aircraft is a vehicle of particular configuration.For its strategy of the helicopter mode,a nonlinear flight dynamic model was established for a prototype,and some relevant test were carried out.Four control strategies were proposed,and a relatively reasonable control strategy was determined by comparing the trim values,control efficiency and cross coupling.The control redundant problem of quad⁃tilt⁃rotor aircraft in helicopter mode was solved under the strategy.At last,the influence of the center of gravity location on trim characteristics and control efficiency was analyzed.The results showed that the main control efficiency of longitudinal and lateral channel obtained by collective differential was much greater than by linkage of cyclic pitch.The main control efficiency of yaw channel obtained by cyclic pitch differential was greater than by collective differential.The cross coupling of yaw channel obtained by lateral cyclic pitch differential was less than longitudinal cyclic pitch differential.The values of trimming and cross coupling were the minimum at the normal position of center of gravity.
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Related Author
WANG Qiang
CHEN Ming
XU Guan-feng
WANG Liangquan
ZHU Qinghua
HE Long
XU Dongxia
HUANG Mingqi
Related Institution
School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics
Army Aviation Research Institute, the Headquarters of General Staff, the Chinese People's Liberation Army
Rotor Aerodynamics Key Laboratory,Low Speed Aerodynamics Institute,China Aerodynamics Research and Development Center
National Key Laboratory of Science and Technology on Rotorcraft Aeromechanics,College of Aerospace Engineering,Nanjing University of Aeronautics and Astronautics