NDLI: Nastran nonlinear vibration analysis of beam and frame structures

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Nastran nonlinear vibration analysis of beam and frame structures

Content Provider	NASA Technical Reports Server (NTRS)
Author	Rogers Jr., J. L. Mei, C.
Copyright Year	1975
Description	A capability for the nonlinear vibration analysis of beam and frame structures suitable for use with NASTRAN level 15.5 is described. The nonlinearity considered is due to the presence of axial loads induced by longitudinal end restraints and lateral displacements that are large compared to the beam height. A brief discussion is included of the mathematical analysis and the geometrical stiffness matrix for a prismatic beam (BAR) element. Also included are a brief discussion of the equivalent linearization iterative process used to determine the nonlinear frequency, the required modifications to subroutines DBAR and XMPLBD of the NASTRAN code, and the appropriate vibration capability, four example problems are presented. Comparisons with existing experimental and analytical results show that excellent accuracy is achieved with NASTRAN in all cases.
File Size	676582
Page Count	26
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19750023427
Archival Resource Key	ark:/13960/t4jm71v48
Language	English
Publisher Date	1975-09-01
Access Restriction	Open
Subject Keyword	Structural Mechanics Stiffness Matrix Frames Numerical Analysis Beams Supports Axial Loads Nonlinearity Vibration Tests Computer Programs Structural Analysis Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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