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Aeroelastic Modeling of Active Twist Rotorblades Using Particle-Wake Aerodynamics and Non-Linear Beam Structural Dynamics

[+] Author Affiliations
Daniel G. Opoku, Fred Nitzsche

Carleton University, Ottawa, Ontario, Canada

Tao Cheng

Massachusetts Institute of Technology, Cambridge, MA

Carlos E. S. Cesnik

University of Michigan, Ann Arbor, MI

Paper No. IMECE2002-32961, pp. 25-37; 13 pages
doi:10.1115/IMECE2002-32961
From:
  • ASME 2002 International Mechanical Engineering Congress and Exposition
  • 5th International Symposium on Fluid Structure Interaction, Aeroelasticity, and Flow Induced Vibration and Noise
  • New Orleans, Louisiana, USA, November 17–22, 2002
  • Conference Sponsors: Applied Mechanics Division
  • ISBN: 0-7918-3659-2 | eISBN: 0-7918-1691-5, 0-7918-1692-3, 0-7918-1693-1
  • Copyright © 2002 by ASME

abstract

An overview of the initial development of SMARTROTOR — a code for active aeroelastic aeroacoustic analysis of rotorcraft — is presented. SMARTROTOR interfaces a particle-wake panel method code with an active non-linear mixed variational intrinsic beam element code. In addition, a Ffowcs Williams-Hawkings equation-based acoustic component was developed for SMARTROTOR. The theory behind each component is reviewed. The method for aeroelastic coupling of the aerodynamic and structural components is presented. Sample acoustic results are presented for a model scale rotor. Sample aeroelastic results are presented for the NASA/ARMY/MIT Active Twist Rotor in hover. Future plans for SMARTROTOR, including acoustic and vibration studies, are discussed.

Copyright © 2002 by ASME

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