NDLI: The motion of interconnected flexible bodies

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The motion of interconnected flexible bodies

Content Provider	NASA Technical Reports Server (NTRS)
Author	Hopkins, A. S.
Copyright Year	1975
Description	The equations of motion for an arbitrarily interconnected collection of substructures are derived. The substructures are elastic bodies which may be idealized as finite element assemblies and are subject to small deformations relative to a nominal state. Interconnections between the elastic substructures permit large relative translations and rotations between substructures, governed by Pfaffian constraints describing the connections. Screw connections (permitting rotation about and translation along a single axis) eliminate constraint forces and incorporate modal coupling. The problem of flexible spacecraft simulation is discussed. Hurty's component mode approach is extended by permitting interconnected elastic substructures large motions relative to each other and relative to inertial space. The hybrid coordinate methods are generalized by permitting all substructures to be flexible (rather than only the terminal members of a topological tree of substructures). The basic relationships of continuum mechanics are developed.
File Size	4518559
Page Count	233
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19750014739
Archival Resource Key	ark:/13960/t1zd2px8w
Language	English
Publisher Date	1975-02-01
Access Restriction	Open
Subject Keyword	Structural Mechanics Finite Element Method Flexible Bodies Translational Motion Continuum Mechanics Coupling Axes of Rotation Equations of Motion Elastic Deformation Pfaff Equation Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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