Tilt-wing rotorcraft dynamic analysis using multibody formulation

Patrick J. O'Heron, Parviz E. Nikravesh, Ara Arabyan, Donald L. Kunz

Research output: Contribution to conferencePaperpeer-review


A model is presented that can be used to simulate the highly nonlinear transient dynamics associated with advanced rotorcraft conversion processes. Multibody equations of motion of the fuselage, the tilting wing, and the rotor assembly are derived using a minimal set of coordinates. An enhanced aerodynamics model is employed to account for unsteadiness and nonlinearity in the near-wake aerodynamics, with a dynamic uniform inflow to compute the far-wake aerodynamics, and a flight control system is employed to compute the blade pitch settings that are necessary to achieve a desired flight path. The model is subjected to a demanding flight path simulation to illustrate that it can perform vertical take-off, hover, tilt-wing conversion, and high-speed forward flight maneuvers effectively.

Original languageEnglish (US)
Number of pages6
StatePublished - 1992
Event18th Annual ASME Design Automation Conference - Scottsdale, AZ, USA
Duration: Sep 13 1992Sep 16 1992


Other18th Annual ASME Design Automation Conference
CityScottsdale, AZ, USA

ASJC Scopus subject areas

  • Engineering(all)


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