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Milestones in Rotorcraft AeromechanicsThe subject of this paper is milestones in rotorcraft aeromechanics. Aeromechanics covers much of what the engineer needs: performance, loads, vibration, stability, flight dynamics, noise. These topics cover many of the key performance attributes, and many of the often-encountered problems in rotorcraft designs. A milestone is a critical achievement, a turning point, an event marking a significant change or stage in development. The milestones identified and discussed include the beginnings of aeromechanics with autogyro analysis, ground resonance, aeromechanics books, unsteady aerodynamics and airloads, nonuniform inflow and wakes, beams and dynamics, comprehensive analysis, computational fluid dynamics, and rotor airloads tests. The focus on milestones limits the scope of the history, but allows the author to acknowledge his choices for key steps in the development of the science and engineering of rotorcraft.
Document ID
20110014589
Document Type
Technical Publication (TP)
Authors
Johnson, Wayne (NASA Ames Research Center Moffett Field, CA, United States)
Date Acquired
August 25, 2013
Publication Date
May 1, 2011
Subject Category
Aeronautics (General)
Report/Patent Number
NASA/TP-2011-215971
ARC-E-DAA-TN3448
Meeting Information
American Helicopter Society 66th Annual Forum, Phoenix, Arizona, May 2010(Phoenix, AZ)
Distribution Limits
Public
Copyright
Public Use Permitted.

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