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Status of integrated multidisciplinary rotorcraft optimization research at the Langley Research CenterThis paper describes a joint NASA/Army research activity at the Langley Research Center to develop optimization procedures aimed at improving the rotor blade design process by integrating appropriate disciplines and accounting for important interactions among the disciplines. The activity is being guided by a Steering Committee made up of key NASA and Army researchers and managers. The paper describes the optimization formulation in terms of the objective function, design variables, and constraints. The analysis aspects are discussed, and the interdisciplinary interactions are defined in terms of the information that must be transferred among disciplinary analyses as well as the trade-offs between disciplines in determining the details of the design. At this writing, some significant progress has been made. Results given in the paper represent accomplishments in rotor aerodynamic performance optimization for minimum horsepower, rotor dynamic optimization for vibration reduction, approximate analysis of frequencies and mode shapes, rotor structural optimization for minimum weight, and integrated aerodynamic load/dynamics optimization for minimum vibration and weight.
Document ID
19910032610
Document Type
Conference Paper
Authors
Mantay, Wayne R. (NASA Langley Research Center; U.S. Army, Aerostructures Directorate, Hampton VA, United States)
Adelman, Howard M. (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1990
Subject Category
AIRCRAFT DESIGN, TESTING AND PERFORMANCE
Meeting Information
AHS, Annual Forum(Washington, DC)
Distribution Limits
Public
Copyright
Other