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There are a total of 16 record(s) matching your query.
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An isoparametric quadrilateral membrane element for NASTRAN
Author(s): Adelman, H. M.; Walz, J. E.; Rogers, J. L., Jr.
Abstract: The geometric and kinematic properties of the element are described, along with development of the matrices and vectors which characterize the element. The necessity for considering small deviations from element planeness is ...
NASA Center: Langley Research Center Publication Year: 1972
Added to NTRS: 2008-10-02
Accession Number: 72N32887; Document ID: 19720025237
Integrated design of the CSI evolutionary structure: A verification of the design methodology
Author(s): Maghami, Peiman G.; Joshi, S. M.; Elliott, Kenny B.; Walz, J. E.
Abstract: One of the main objectives of the Controls-Structures Interaction (CSI) program is to develop and evaluate integrated controls-structures design methodology for flexible space structures. Thus far, integrated design ...
NASA Center: Langley Research Center Publication Year: 1993
Added to NTRS: 2008-06-01
Accession Number: 93N18830; Document ID: 19930009641
Thermal distortions of thin-walled paraboloidal shells
Author(s): Walz, J. E.
Abstract: Linear behavior of deep thin walled shell of revolution subjected to axisymmetric thermal loading - solution obtained for parabaloid with ring at edge
NASA Center: Langley Research Center Publication Year: 1966
Added to NTRS: 2006-11-06
Accession Number: 66N33970; Document ID: 19660024680; Report Number: NASA-TN-D-3543
Dynamic response of a flexible space beam
Author(s): Card, M. F.; Anderson, M. S.; Walz, J. E.
Abstract: Dynamic response of a candidate flexible beam for a space experiment on control of flexible structures is investigated. Studies of natural frequencies reveal a beam length in which torsion and bending frequencies virtually ...
NASA Center: Langley Research Center Publication Year: 1985
Added to NTRS: 2006-09-29
Accession Number: 85N30368; Document ID: 19850022056; Report Number: NAS 1.15:86441, NASA-TM-86441
Structural sizing considerations for large space structures
Author(s): Heard, W. L., Jr.; Bush, H. G.; Walz, J. E.
Abstract: A number of missions for the space shuttle were proposed which involve placing large truss platforms on-orbit. These platforms range in size from tens of meters in span for reflector application to several thousand meters ...
NASA Center: Langley Research Center Publication Year: 1981
Added to NTRS: 2005-10-04
Accession Number: 81N19200; Document ID: 19810010673
Accuracy of finite element approximations to structural problems
Author(s): Cyrus, N. J.; Eppink, R. T.; Fulton, R. E.; Walz, J. E.
Abstract: Finite element approximation accuracy and extent of errors in structural problems
NASA Center: Langley Research Center Publication Year: 1970
Added to NTRS: 2005-08-25
Accession Number: 70N21708; Document ID: 19700012403; Report Number: L-5656, NASA-TN-D-5728
Generalized ring stiffness matrix for ring- stiffened shells of revolution
Author(s): Walz, J. E.; Weeks, G. E.
Abstract: Generalized ring stiffness matrix for ring stiffened shells of revolution
NASA Center: Langley Research Center Publication Year: 1970
Added to NTRS: 2005-08-25
Accession Number: 70N21841; Document ID: 19700012536; Report Number: L-5406, NASA-TN-D-5701
Integrated controls-structures design methodology development for a class of flexible spacecraft
Author(s): Maghami, P. G.; Joshi, S. M.; Walz, J. E.; Armstrong, E. S.
Abstract: Future utilization of space will require large space structures in low-Earth and geostationary orbits. Example missions include: Earth observation systems, personal communication systems, space science missions, space ...
NASA Center: Langley Research Center Publication Year: 1990
Added to NTRS: 2004-11-03
Accession Number: 94N71416; Document ID: 19940004661
Deployable and erectable concepts for large spacecraft
Author(s): Bush, H. G.; Heard, W. L., Jr.; Walz, J. E.; Rehder, J. J.
Abstract: Computerized structural sizing techniques were used to determine structural proportions of minimum mass tetrahedral truss platforms designed for low Earth and geosynchronous orbit. Optimum (minimum mass) deployable and ...
NASA Center: Langley Research Center Publication Year: 1980
Added to NTRS: 2004-11-03
Accession Number: 81N12445; Document ID: 19810003934; Report Number: NASA-TM-81904
Structural sizing considerations for large space platforms
Author(s): Heard, W. L., Jr.; Bush, H. G.; Walz, J. E.; Rehder, J. J.
Abstract: Structural optimization studies are made using mathematical programming techniques to examine minimum mass structural proportions of deployable and erectable tetrahedral truss platforms subject to the integrated effects of ...
NASA Center: Langley Research Center Publication Year: 1980
Added to NTRS: 2004-11-03
Accession Number: 80A35003; Document ID: 19800050833; Report Number: AIAA PAPER 80-0680
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