1–50 of 73 hits
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    Aeroelastic Tailoring of the NASA Common Research Model via Novel Material and Structural Configurations

    Jutte, Christine V. / Stanford, Bret K. / Wieseman, Carol D. et al. | NTRS | 2014
    is generally strong, although one case showed both a 100% flutter improvement and a 3.5% weight reduction. Material grading showed no benefit ...
    Publisher: NASA National Aeronautics and Space Administration
    Keywords: Aircraft Design, Testing And Performance

    21st century steels for 21st customers: Flat and long steel product development

    Elliot, Chris | Tema Archive | 2007
    present day, the predominant structural solution is essentially the same, namely a fine high carbon-manganese steel pearlitic structure ...

    Study on the Structural Dynamics of the Elevated Station in Rail Transportation

    Mao, Jian-Hong | Tema Archive | 2012
    structural model in the aspects of the carrying load and structure performance. In accordance with this point, the author emphatically analyzes the ...
    Keywords: Strukturdynamik

    Structure - Control Interactions in Flexible Aerospace Vehicles

    Joshi, A. / American Institute of Aeronautics and Astronautics | British Library Conference Proceedings | 2010
    Publisher: American Institute of Aeronautics and Astronautics , Reston, Va.
    Keywords: Structural dynamics , Materials

    Shape, Structure, and Kinematic Parameterization of a Power-Optimal Hovering Wing

    Stanford, B. / Kurdi, M. / Beran, P. et al. | British Library Conference Proceedings | 2010
    Publisher: American Institute of Aeronautics and Astronautics , Reston, Va.
    Keywords: Structural dynamics , Materials

    CFD Fuel Slosh Modeling of Fluid-Structure Interaction in Spacecraft Propellant Tanks with Diaphragms

    Sances, D. / Gangadharan, S. / Sudermann, J. et al. | British Library Conference Proceedings | 2010
    Publisher: American Institute of Aeronautics and Astronautics , Reston, Va.
    Keywords: Structural dynamics , Materials

    Computational Fluid Dynamics and Strength Analysis of Composite UAV Wing

    Vasić, Zoran / Maksimović, Katarina / Maksimović, Ivana Vasović et al. | Springer Verlag | 2021

    This paper considers computational fluid dynamics (CFD) analysis and experimental test strength verification of

     ...
    Keywords: Composite materials , Structural analysis , Mathematical and Computational Engineering

    Dynamic Response Analysis of Jacket Wharf Structure under Wave

    Zhang, Yuan / Chen, Ting-Guo | Tema Archive | 2012
    consideration of the structure dynamic responses and the pile foundation pull-out resistance, three types of pile foundation were adopted, which are the ...
    Keywords: Strukturdynamik

    Estimation of Dynamic Wind Pressure for Multi-Span Greenhouse Structural Design

    Sun, De-Fa | Tema Archive | 2012
    and estimation of dynamic wind pressures for multi-span greenhouse structural design in details. Meanwhile, taking advantage of past ...
    Keywords: Dynamik , building structure

    Structural Verification of the First Orbital Wonder of the World - The Structural Testing and Analysis of the International Space Station (ISS)

    Zipay, John J. / Bernstein, Karen S. / Bruno, Erica E. et al. | NTRS | 2012
    autonomously. The primary structure of each element was assembled and verified by teams of responsible structural engineers within and among their ...
    Publisher: NASA National Aeronautics and Space Administration
    Keywords: Structural Mechanics

    Conceptual Design and Structural Analysis of an Open Rotor Hybrid Wing Body Aircraft

    Gern, Frank H. | NTRS | 2013
    and propulsion airframe integration work, a newly developed and validated conceptual structural analysis and optimization tool was used for a ...
    Publisher: NASA National Aeronautics and Space Administration
    Keywords: Aircraft Design, Testing And Performance

    A Conceptual Aerospace Vehicle Structural System Modeling, Analysis and Design Process

    Mukhopadhyay, Vivek | NTRS | 2007
    scenarios are generated for analyzing several structural configurations and material alternatives. The structural stress, deflection, strain, and ...
    Publisher: NASA National Aeronautics and Space Administration
    Keywords: Spacecraft Design, Testing And Performance

    Investigation of Seismic Isolated Technology in Steel Structure Residence

    Zhao, Feng-Hua / Yang, Jun | Tema Archive | 2011
    effectively reduced and its safety has been guaranteed after considering the seismic isolation of steel structure residence; moreover, the storey ...
    Keywords: nichtlineare Dynamik

    Analysis of weld defects in offshore structural H beams

    Lee, Hee Keun / Kim, Jin Yong / Hwang, In Hwang | Tema Archive | 2008
    H beam welds along rolling and transverse direction were investigated with nondestructive testing, mechanical testing and microstructural ...

    Structural analysis of a flexible structural member protruding into an interior flow field

    Weaver, M.A. / Gramoll, K.C. / Roach, R.L. | Tema Archive | 1993
    element structural model, and a finite difference flow model form the basis of the solution method. The structure is iteratively loaded, with load ...

    Deflection-Based Aircraft Structural Loads Estimation with Comparison to Flight

    Lizotte, Andrew M. / Lokos, William A. | NTRS | 2005
    components of a structure or machine. The use of strain gages has proved successful and is considered the standard approach for load measurement ...
    Publisher: NASA National Aeronautics and Space Administration
    Keywords: Aircraft Design, Testing And Performance

    Structural Analysis for the Blades of a Small Horizontal-Axis Wind Turbine

    Wang, Sheng-Huan / Huang, Kuo-Yi / Tsai, Gwo-Chung | Tema Archive | 2012
    CFD is loaded on the structure, and the structural deformation and stress distribution are calculated using CSM. The physical model in the ...
    Keywords: structural deformation

    Effects of Unsteady Pump Cavitation on Propulsion-Structure Interaction (Pogo) in Liquid Rockets

    Dotson, Kirk / Rubin, Sheldon / Sako, Brian | AIAA | 2004
    Publisher: The American Institute of Aeronautics and Astronautics

    Friction model of a revolute joint for a precision deployable spacecraft structure

    Hachkowski, M. / Peterson, L. | AIAA | 1996
    Publisher: The American Institute of Aeronautics and Astronautics

    ASTROS for reliability-based multidisciplinary structural analysis and optimization

    Luo, Xiaodong / Grandhi, R.V. | Tema Archive | 1995
    In conducting multidisciplinary structural optimization, there is uncertainty and randomness in he input information of finite element ...
    Publisher: American Institute of Aeronautics and Astronautics (AIAA) , Washington

    Evaluation of Metallic-tube-cooled C/C Composite Structure by Rocket Combustor

    Takegoshi, Masao / Ono, Fumiei / Ueda, Shuichi et al. | AIAA | 2007
    Publisher: The American Institute of Aeronautics and Astronautics

    Recovered transient load analysis for payload structural systems

    Chen, J. C. / Zagzebski, K. P. / Garba, J. A. | NTRS | 1980
    the information on a new payload structure to be launched by an identical launch vehicle. The advantage of the proposed method is that the ...
    Publisher: NASA National Aeronautics and Space Administration
    Keywords: Spacecraft Design, Testing And Performance

    Hypersonic wing test structure design, analysis, and fabrication

    Plank, P. P. | NTRS | 1975
    , part of the wing (85 sq ft) was designed, fabricated, and assembled into a test structure to experimentally verify the structural adequacy of ...
    Publisher: NASA National Aeronautics and Space Administration
    Keywords: Aircraft Design, Testing And Performance

    Structural Dynamic Response of a Square Solar Sail under Solar Pressure and Thermal Loading

    Malla, Ramesh B. / Lin, Chijie | ASCE | 2004
    order to study effects of straight edge cords and uniform thermal distribution across the sail. It is seen that structural response of the ...
    Keywords: Structural dynamics , Construction materials

    Structural design of integral tankage for advanced space transportation systems

    Macconochie, I. O. / Davis, R. B. / Lemessurier, R. W. | NTRS | 1982
    large propellant tankage. The dominant structural elements are internal tankage for both cryogenic and non-cryogenic propellants which must ...
    Publisher: NASA National Aeronautics and Space Administration
    Keywords: Spacecraft Design, Testing And Performance

    NASA/FAA general aviation crash dynamics program - A status report

    Thomson, R. G. / Goetz, R. C. | NTRS | 1979
    The objective of the Langley Research Center general aviation crash dynamics program is to develop technology for improved crash safety and ...
    Publisher: NASA National Aeronautics and Space Administration
    Keywords: Aircraft Design, Testing And Performance

    Deflection-Based Structural Loads Estimation From the Active Aeroelastic Wing F/A-18 Aircraft

    Lizotte, Andrew M. / Lokos, William A. | NTRS | 2005
    components of a structure or machine. The use of strain gages has proved successful and is considered the standard approach for load measurement ...
    Publisher: NASA National Aeronautics and Space Administration
    Keywords: Aircraft Design, Testing And Performance

    A Survey of Research Performed at NASA Langley Research Center's Impact Dynamics Research Facility

    Jackson, K. E. / Fasanella, E. L. | NTRS | 2003
    The Impact Dynamics Research Facility (IDRF) is a 240-ft-high gantry structure located at NASA Langley Research Center in Hampton, Virginia ...
    Publisher: American Inst. of Aeronautics and Astronautics
    Keywords: Research And Support Facilities (Air)

    Analytical Approach for Estimating Preliminary Mass of ARES I Crew Launch Vehicle Upper Stage Structural Components

    Aggarwal, Pravin | NTRS | 2007
    . The fully integrated Upper Stage is a mix of modified existing heritage hardware (J-2X Engine) and new development (primary structure ...
    Publisher: NASA National Aeronautics and Space Administration
    Keywords: Launch Vehicles And Launch Operations

    Control of a slow moving space crane as an adaptive structure

    Utku, S. / Ramesh, A. V. / Das, S. K. et al. | NTRS | 1989
    Assuming that the space crane is an adaptive structure with length-adjustable bars and taking as controls the length-adjustments of these ...
    Publisher: NASA National Aeronautics and Space Administration
    Keywords: Spacecraft Design, Testing And Performance

    Research Advances in the Interaction among Stratum-Ground Fissure-Tunnel under Subway Dynamic Loading

    Yuan, Li-Qun / Liu, Hong-Jia / Men, Yu Ming | Tema Archive | 2012
    and disaster effect control among ground fissure-stratum-subway tunnel under subway dynamic loading, which is also the important problem to be ...
    Keywords: Strukturdynamik

    Properties of large multispot ultrasonically welded joints

    RENSHAW, T. / SARRANTONIO, A. | AIAA | 1980
    Publisher: The American Institute of Aeronautics and Astronautics

    Rotordynamics analysis of the Space Shuttle main engine high-pressure oxidizer pump

    ROWAN, B. | AIAA | 1980
    Publisher: The American Institute of Aeronautics and Astronautics

    Analysis of Damping Performance for Cabin Deck Covered with Floating Floor Coverings

    Liang, Bing-Nan / Yu, Hong-liang / Song, Yu-Chao | Tema Archive | 2012
    coverings and cabin deck and based on ANSYS system, a dynamics analysis on structures of three different kinds of floating floors is performed using ...
    Keywords: Strukturdynamik

    Analysis and Testing of a Composite Fuselage Shield for Open Rotor Engine Blade-Out Protection

    Pereira, J. Michael / Emmerling, William / Seng, Silvia et al. | NTRS | 2015
    new engines that would not have a containment structure on large commercial aircraft. Equivalent safety to the current fleet is desired by the ...
    Publisher: NASA National Aeronautics and Space Administration
    Keywords: Aircraft Design, Testing And Performance , Composite Materials , composite materials

    Multidisciplinary analysis and synthesis - Needs and opportunities

    Tolson, R. H. / Sobieszczanski-Sobieski, J. | NTRS | 1985
    , structural dynamics, materials, controls, and propulsion. In this way, it becomes possible to rapidly exploit technological advances in order to ...
    Publisher: NASA National Aeronautics and Space Administration

    Nonlinear Analysis and Post-Test Correlation for a Curved PRSEUS Panel

    Gould, Kevin / Lovejoy, Andrew E. / Jegley, Dawn et al. | NTRS | 2013
    panel using a full-scale curved panel in the FAA Full-Scale Aircraft Structural Test Evaluation and Research (FASTER) facility. Testing was ...
    Publisher: NASA National Aeronautics and Space Administration
    Keywords: Aircraft Design, Testing And Performance

    Thermal-Mechanical Cyclic Test of a Composite Cryogenic Tank for Reusable Launch Vehicles

    Messinger, Ross / Pulley, John | NTRS | 2003
    Center's Cryogenic Structure Test Facility, cyclic test plans and accomplishments, burst test and analysis and post-testing evaluation. ...
    Publisher: NASA National Aeronautics and Space Administration
    Keywords: Composite Materials

    Innovative Systems for Seismic Protection of Precast Industrial Buildings

    Valente, Marco | Tema Archive | 2013
    enhanced the stiffness of the structure, causing only small reductions of column rotations and top displacements. In case of severe seismic actions ...
    Keywords: nichtlineare Dynamik

    Compressive Behavior of Frame-Stiffened Composite Panels

    Yovanof, Nicolette P. / Jegley, Dawn C. | NTRS | 2011
    advantages over traditional metallic structure. In this concept a stitched carbon-epoxy material system is employed with the potential for reducing ...
    Publisher: NASA National Aeronautics and Space Administration
    Keywords: Composite Materials

    As-Flown Shuttle Micro-Meteoroid Orbital Debris (MMOD) Assessment History

    Hyde, James L. / Christiansen, Eric L. / Lear, Dana M. et al. | NTRS | 2012
    The final flight of the Space Shuttle program was completed on July 21st of 2011. The reusable nature of the Orbiter vehicles has provided ...
    Publisher: NASA National Aeronautics and Space Administration
    Keywords: Spacecraft Design, Testing And Performance

    Polyurethane foam injection and expansion in thin-film inflatable booms under semi-vacuum conditions

    Schoenfeld, M.P. / Tinker, M.L. | Tema Archive | 2003
    Investigations of the behavior and mechanics of polyurethane foam-filled deployable structures were conducted. These investigations were ...

    Adaptive Modeling, Engineering Analysis and Design of Advanced Aerospace Vehicles

    Mukhopadhyay, Vivek / Hsu, Su-Yuen / Mason, Brian H. et al. | NTRS | 2006
    conceptual design of advanced aerospace vehicle concepts. With demanding structural and aerodynamic performance requirements, these high fidelity ...
    Publisher: NASA National Aeronautics and Space Administration
    Keywords: Spacecraft Design, Testing And Performance

    Tougher concrete structures to service and protect oil and gas operations

    Moncarz, P.D. / Krstulovic-Opara, N. | Tema Archive | 2005
    likely to succeed. These design features include both structural and material level considerations. The authors discuss some of the currently ...

    Isogrid structures

    Slysh, P. / Dyer, J. E. / Furman, J. H. et al. | NTRS | 1975
    Test results and related structural instability analyses are presented for a 10-foot-diameter, 37-inch-long cylinder, and a 10-foot ...
    Publisher: NASA National Aeronautics and Space Administration
    Keywords: Structural Mechanics

    Experimental and analytical program to determine strains in 737 lap splice joints subjected to normal fuselage pressurization loads

    Roach, D.P. / Jeong, D.Y. | Tema Archive | 1996
    The Federal Aviation Administration Technical Center (FAATC) has initiated several research projects to assess the structural integrity of ...
    Publisher: American Institute of Aeronautics and Astronautics (AIAA) , Reston

    Monitoring Changes in the Soil and Foundation Characteristics of an Offshore Wind Turbine Using Automated Operational Modal Analysis

    de Sitter, Gert / Weitjens, Wout / El-Kafafy, Mahmoud et al. | Tema Archive | 2013
    focus on the vibration levels and resonant frequencies of the fundamental modes of the support structure. These parameters will be crucial to ...
    Keywords: support structure

    An analytical comparison of two wing structures for Mach 5 cruise airplanes

    Taylor, A. H. / Jackson, L. R. / Cerro, J. A. et al. | NTRS | 1983
    propulsion system, fuselage, and wings. Various studies have shown that the achievement of adequate range is largely dependent on a low structural ...
    Publisher: NASA National Aeronautics and Space Administration
    Keywords: Aircraft Design, Testing And Performance

    Aeroelastic considerations for continuous patrol/high altitude surveillance platforms

    Turner, C. D. / Rocketts, R. H. | NTRS | 1983
    power, a cryogenically fueled engine, or microwave-power. Attention is given to airborne platform configuration, structure, structural and ...
    Publisher: NASA National Aeronautics and Space Administration
    Keywords: Aircraft Design, Testing And Performance

    CFD Application for Performance Based Safety Verification of Reinforced Concrete Beam in Computer Simulation Building Fire

    Yu, Chia-Chun / Wang, Shih-Cheng / Lin, Cherng-Shing et al. | Tema Archive | 2012
    Dynamics Simulator (FDS) fire model and PHOENICS field model software to simulate fire development and beams inner temperature variation. The ...
    Keywords: structural strength