1–20 von 381 Ergebnissen
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    Identification of nonlinear helicopter rotor structural dynamics

    Tasker, F.A. / Yu, Zehngchen | Tema Archiv | 1994
    developed using finite elements in space with approximation of distributed parameters and finite elements in time. Response sensitivities are ...

    Space program supporting technologies: structures, materials, and signal processing

    Schutzenhofer, L.A. / Blalock, S.J. / Johnston, L. et al. | Tema Archiv | 1995
    analysis, fracture mechanics, structural testing, structural dynamics, vibroacoustics, and probabilistics. It is demonstrated that each technology ...
    Verlag: American Institute of Aeronautics and Astronautics (AIAA) , Washington

    Reentry flight and ground testing experience with hot structures of C/C-SiC material

    Hald, H. / Ullmann, T. | Tema Archiv | 2003
    understanding of the complex physical and chemical material surface interaction phenomena with the high enthalpy plasma flow field during atmospheric ...
    Schlagwörter: faserverstärkter Werkstoff , carbonfaserverstärkter Werkstoff

    Enhanced structural damage tolerance of CFRP primary structures by Z-pin reinforcement

    Clarke, A. / Greenhalgh, E. / Meeks, C. et al. | Tema Archiv | 2003
    stiffness in structures subjected to high strains. Z-pins within this programme are considered for the control of delamination and their location ...

    Modeling the Varying Dynamics of Thin-Walled Aerospace Structures for Fixture Design Using Genetic Algorithms

    Meshreki, Mouhab / Attia, Helmi / Kövecses, Jozsef | Tema Archiv | 2011
    Fixture design for milling of aerospace thin-walled structures is a challenging process due to the high flexibility of the structure and ...

    Practical Solution of Rail Vehicle and Track Dynamics Monitoring System

    Chudzikiewicz, Andrzej / Drozdziel, Jozef / Sowinski, Bogdan | Tema Archiv | 2012
    The improvement of traveller comfort and safety, in parallel to an increase of passenger train speed, is a reason to implement monitoring ...

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

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

    Analysis techniques for shape-memory composite structures

    Schultz, Marc R. / Francis, William H. / Campbell, Douglas et al. | Tema Archiv | 2007
    Elastic memory composite (EMC) materials consist of traditional fiber reinforcement (carbon, glass, etc.) and a fully cured thermoset shape ...

    Composite material compatibility with liquid and gaseous oxygen

    Robinson, M.J. / Stoltzfus, J.M. / Owens, T.N. | Tema Archiv | 2001
    Boeing and NASA are investigating the compatibility of composite materials with liquid and gaseous oxygen (LOX and GOX). The objective is ...

    Nonlinear acoustic structural health monitoring

    Zagrai, Andrei / Donskoy, Dimitri / Chudnovsky, Alexander et al. | Tema Archiv | 2006
    propose to utilize the damage-induced nonlinearity of structural material for discriminating different stages of material deterioration and damage ...

    A nonlinear, coupled fluid-structural dynamics code for cryogenic refrigerators based on the Oxford split-stirling cycle design

    Jacoby, M.S. / Nast, T. | Tema Archiv | 1994
    paper describes the development of a nonlinear, coupled fluid-structural dynamics code which has been used for the basic mechanical design of ...

    Optimization of a morphing wing based on coupled aerodynamic and structural constraints

    Vale, J. / Lau, F. / Suleman, A. et al. | Tema Archiv | 2007
    This work is a development of previous work where improvements on the computational models, both aerodynamic and structural, have been ...

    Design, characterization and evaluation of material systems for ballistic resistant body armor: A comparative study

    David, N.V. / Gao, X.L. / Zheng, J.Q. | Tema Archiv | 2008
    number of studies related to new concepts and designs of body armor materials have been conducted in the past two decades to meet the new demands ...
    Verlag: American Institute of Aeronautics and Astronautics (AIAA) , Reston
    Schlagwörter: keramischer Werkstoff

    Modal identification of membrane structures with videogrammetry and laser vibrometry

    Blandino, J.R. / Pappa, R.S. / Black, J.T. | Tema Archiv | 2003
    Laser vibrometry and videogrammetry are two techniques suitable for testing large, low mass flexible structures. Laser vibrometry is a ...

    Structural modeling and control using neural networks

    Juang, Jyh-Ching / Chiang, Chi-Yuan / Youssef, H.M. | Tema Archiv | 1994
    through structural dynamics may deteriorate pointing accuracy or lead to instability. How to accurately model the structural dynamics and control ...

    Structural Design for Dynamic Roller Device in Transporting Unit of Biomass Pyrolytic System

    Wu, Jun-Hui / Zhou, Quan / Chen, Jie et al. | Tema Archiv | 2012
    , reliability and stability will be greatly improved. The technology shall be constantly upgraded and vigorously promoted. The frame structures of ...
    Schlagwörter: Dynamik

    Structural dynamic conceptual design of satellites by design language

    Harmsen, Nils / Kormeier, Thomas / Rudolph, Stephan | Tema Archiv | 2007
    This paper presents a methodology for the conceptual design synthesis and subsequent automated structural dynamic analysis of satellites ...

    Affordable thermoplastic structures

    Orlino, D. / Caravasos, N. | Tema Archiv | 1995
    The role of helicopters on the battlefield depends on their capability to survive against a variety of hostile and lethal threats. These ...
    Verlag: American Institute of Aeronautics and Astronautics (AIAA) , Washington

    Reliability-based design optimization of composite and steel aerospace structures

    D'Ippolito, Roberto / Donders, Stijn / Hack, Michael et al. | Tema Archiv | 2006
    design process, the effect of this manufacturing variability on the structural durability and safety cannot be accurately assessed and Is hence ...

    Nonlinear dynamics and control of integrally actuated helicopter blades

    Traugott, Johannes P. / Patil, Mayuresh J. / Holzapfel, Florian | Tema Archiv | 2005
    A set of nonlinear, intrinsic equations describing the dynamics of beam structures under-going large deformations is presented. The ...