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Periodic trim solutions with HP-version finite elements in timeFinite Element in Time has been proven to be a powerful alternative solving strategy for the rotor craft trim problem. Additionally, Finite Element Method in Time has been developed in various versions like time-marching framework, Galerkin framework, Rayleigh-Ritz framework, and mixed formulation. Recently, this method was applied to the rotorcraft trim problem to obtain linearized solutions. The rotorcraft trim problem consists of trying to find a period solution for period-coefficient, differential equations subject to side constraints where certain force and momentum balance equations are forced to be equal to zero. There are free (or trim) parameters that are chosen to meet these side constraints. This project aims at expanding the application, in terms of the rotorcraft trim problem, from a linearized solution to nonlinear solution.
Document ID
19920007801
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Date Acquired
September 6, 2013
Publication Date
December 1, 1991
Subject Category
Aircraft Stability And Control
Report/Patent Number
NAS 1.26:189778
NASA-CR-189778
Report Number: NAS 1.26:189778
Report Number: NASA-CR-189778
Accession Number
92N17019
Funding Number(s)
CONTRACT_GRANT: NAG1-1027
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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