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Calculation of flight vibration levels of the AH-1G helicopter and correlation with existing flight vibration measurementsBoeing Helicopters, together with other U.S. Helicopter manufacturers, participated in a finite element applications program to give the United States a superior capability to utilize finite element analysis models in support of helicopter airframe design. The program was sponsored by the NASA Langley Research Center. Under this program, an activity was sponsored to evaluate existing analysis methods applicable to calculate coupled rotor-airframe vibrations. The helicopter used in this evaluation was the AH-1G helicopter. The results of the Boeing Helicopters efforts are summarized. The planned analytical procedure is reviewed. Changes to the planned procedure are discussed, and results of the correlation study are presented.
Document ID
19900009427
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Ditaranto, R. A.
(Boeing Helicopter Co. Philadelphia, PA, United States)
Sankewitsch, V.
(Boeing Helicopter Co. Philadelphia, PA, United States)
Date Acquired
September 6, 2013
Publication Date
November 1, 1989
Subject Category
Structural Mechanics
Report/Patent Number
NASA-CR-181923
NAS 1.26:181923
Accession Number
90N18743
Funding Number(s)
PROJECT: RTOP 505-63-51-01
CONTRACT_GRANT: NAS1-17497
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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