+ Visit NASA.gov + Contact NASA   + Home Select Search Field * All Report - Patent Number Abstract *Accession Number *NASA Center *Author NameDocument IDKeywordsPublication Date *Title * Find Results With All of the words At least one of the words Enter Search Term  within returned results    Search Tips: Use only the fields with * to search NIX collection. Enclose terms in double quotation marks (") to search for exact phrases, ie: "space shuttle". NOTE: Commas and dashes are removed from search term by search engine. Select Reset Search button to start a new search. See Help for more tips. + NASA Center + Publication Year + Subject + Availability Options + Item/Media Type Selected Navigations: Author > Walz, J. E. [x] Sort results by: NASA Center | Date Added to NTRS | Publication Year There are a total of 16 record(s) matching your query. Sorted by: Date Added To NTRS in Descending order 1 2 Next  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 1 2 Next  + Back to Top + Sponsored by the NASA Scientific and Technical    Information Program + 2004 Vision for Space Exploration + Freedom of Information Act + NASA Web Privacy Policy and Important Notices + NASA Disclaimers, Copyright Notice,    and Terms and Conditions of Use NASA Official: Calvin Mackey Page Curator: NASA Center for AeroSpace Information (help@sti.nasa.gov) Last Updated: July 5, 2007