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Introduction to GRASP - General rotorcraft aeromechanical stability program - A modern approach to rotorcraft modelingThe General Rotorcraft Aeromechanical Stability Program (GRASP), which is a hybrid between finite element programs and spacecraft-oriented multibody programs, is described in terms of its design and capabilities. Numerical results from GRASP are presented and compared with the results from an existing, special-purpose coupled rotor/body aeromechanical stability program and with experimental data of Dowell and Traybar (1975 and 1977) for large deflections of an end-loaded cantilevered beam. The agreement is excellent in both cases.
Document ID
19870031984
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Hodges, D. H. (NASA Ames Research Center Moffett Field, CA, United States)
Hopkins, A. S. (NASA Ames Research Center Moffett Field, CA, United States)
Kunz, D. L. (NASA Ames Research Center Moffett Field, CA, United States)
Hinnant, H. E. (NASA Ames Research Center; U.S. Army, Aviation Systems Command, Moffett Field CA, United States)
Date Acquired
August 13, 2013
Publication Date
January 1, 1986
Subject Category
Aircraft Design, Testing And Performance
Accession Number
87A19258
Distribution Limits
Public
Copyright
Other

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