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Some observations on the behavior of the Langley model rotor bladeThe design of the model rotor and the comparative study of coupled beam theory and the finite element analysis performed earlier at the Aerostructures Directorate by Robert Hodges and Mark Nixon is examined. Attention is focused upon two matters: (1) an examination of the small discrepancies between twist angle predictions under pure torque and radial loading, and (2) an assessment of nonclassical effects in bending behavior. The primary objective is understanding, particularly with regard to cause and effect relationships. Understanding, together with the simple, affordable nature of the coupled beam analysis, provides a sound basis for design.
Document ID
19870002262
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Rehfield, L. W.
(Georgia Inst. of Tech. Atlanta, GA, United States)
Atilgan, A. R.
(Georgia Inst. of Tech. Atlanta, GA, United States)
Date Acquired
September 5, 2013
Publication Date
July 1, 1986
Subject Category
Aerodynamics
Report/Patent Number
NASA-CR-179880
NAS 1.26:179880
Accession Number
87N11695
Funding Number(s)
PROJECT: PROJ. E16-668
CONTRACT_GRANT: NAG1-638
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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