As compared with the maneuvering flight studies for single main rotor helicopters, the corresponding studies for coaxial rotor helicopters are relatively poor. In this paper, the maneuvering flight governing equations for coaxial rotor helicopters is established. By introducing induced velocity interference factor analysis, the coaxial rotor aerodynamic interference can be taken into account. With the combination of coaxial rotor helicopter control features and nonlinear inverse simulation technique, the governing equations for maneuvering flight can be solved so as to determine helicopter control input, control force and moment, and helicopter body attitudes which are needed for performing a specified maneuver. Good results of the sample calculations of level turn and lateral jink maneuvers are obtained and simply analyzed.
A nonlinear inverse simulation technique applied to coaxial rotor helicopter maneuvers
Aircraft Engineering and Aerospace Technology ; 74 , 6 ; 525-533
2002-12-01
9 pages
Article (Journal)
Electronic Resource
English
A nonlinear inverse simulation technique applied to coaxial rotor helicopter maneuvers
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