01798oam 2200505Ia 450 991070125930332120111207085236.0(CKB)5470000002416464(OCoLC)227773976(EXLCZ)99547000000241646420090316d1991 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierResonant frequency calculations using a hybrid perturbation-galerkin technique[electronic resource] /James F. Geer, Carl M. AndersonHampton, Va. :Institute for Computer Applications in Science and Engineering, NASA Langley Research Center,[1991]1 online resource (i, 27 pages) illustrationsICASE report ;no. 91-68NASA contractor report ;187632Title from title screen (viewed on Dec. 6, 2011)."September 1991."Includes bibliographical references (pages 23-24).Galerkin methodnasatNonlinear systemsnasatPendulumsnasatPerturbation theorynasatResonant frequenciesnasatGalerkin method.Nonlinear systems.Pendulums.Perturbation theory.Resonant frequencies.Geer James F1392593Anderson Carl M1392594Institute for Computer Applications in Science and Engineering.DTICEDTICEOCLCQGPOBOOK9910701259303321Resonant frequency calculations using a hybrid perturbation-galerkin technique3447566UNINA