Comparisons of measured and calculated aeromechanics behavior of a tiltrotor model are presented, with an emphasis on performance and structural loads. The recent test of the Tilt Rotor Aeroacoustic Model (TRAM) with a single, 1/4-scale V-22 rotor in the German-Dutch Wind Tunnel (DNW) provides an extensive set of aeroacoustic, performance, and structural loads data. The calculations were performed using the rotorcraft comprehensive analysis CAMRAD II. The comparison of measurements and calculations includes helicopter mode operation (performance, airloads, and blade structural loads), hover performance, and airplane mode performance. The correlation establishes the level of predictive capability achievable with current technology; identifies the limitations of the current aerodynamic, wake, and structural models of tiltrotors; and leads to recommendations for research to extend tiltrotor aeromechanics analysis capability.
Calculation of Tilt Rotor Aeroacoustic Model (TRAM DNW) Performance, Airloads, and Structural Loads
2000
66 pages
Report
No indication
English
Aerodynamics , Aircraft , Wind tunnel tests , Tilt rotor aircraft , Symposia , Scale models , Aircraft models , Technology assessment , Wind tunnel models , Validation , State of the art , Aeromechanics , Tram(Tilt rotor aeroacoustic model) , Camrad ii(Rotorcraft comprehensive analysis program) , Aeroacoustic prediction methodologies , Structural dynamics , Airloads
Tilt Rotor Aeroacoustic Model (TRAM) : A New Rotorcraft Research Facility
British Library Conference Proceedings | 1998
|