101–120 von 148 Ergebnissen
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    Aeroelastic control of a smart composite plate with delaminations

    Nam, Changho / Chattopadhyay, A. / Kim, Youdan | Tema Archiv | 1999
    designed to enhance the dynamic stability of the delaminated composite wing. The refined higher order theory for analyzing an adaptive composite ...

    Structural dynamic health monitoring of adaptive CFRP-structures

    Kaiser, S. / Melcher, J. / Breitbach, E. et al. | Tema Archiv | 1999
    The DLR Institute of Structural Mechanics is engaged in the construction and optimization of adaptive structures for aerospace and ...

    Space environmental effects on colored marker coatings and anodizes

    Kamenetzky, R.R. / Finckenor, M.M. / Vaughn, J.A. | Tema Archiv | 1999
    ultraviolet radiation and approximately 1 x 1021 atoms/cm2 of atomic oxygen in vacuum. Optical property measurements before and ...
    Verlag: Society for the Advancement of Material and Process Engineering (SAMPE) , Covina

    Applications for thermal NDT on advanced composites in aerospace structures

    Baughman, S.T. | Tema Archiv | 1998
    Time Dependent Thermography (TDT) is a key approach for unlocking the potential of infrared thermography NDE for aerospace applications ...
    Verlag: SPIE International Society for Optical Engineering , Bellingham

    Actuator development for a flapping microrobotic microaerial vehicle

    Cox, A. / Garcia, E. / Goldfarb, M. | Tema Archiv | 1998
    areas result in low Reynolds numbers. For Re's below 103 conventional fixed wing flight is no longer possible because drag becomes ...

    Non-destructive test methods for evaluating durability of concrete highway structures. Experience of Ontario Ministry of Transportation

    Ip, A. / Berszakiewicz, B. / Pianca, F. | Tema Archiv | 1998
    Verlag: SPIE International Society for Optical Engineering , Bellingham

    Thermographic detection and quantitative characterization of corrosion by application of thermal line source

    Cramer, K.E. / Winfree, W.P. | Tema Archiv | 1998
    designed to determine the spatial resolution of the system. A steady state solution for the induced thermal change in the plate is presented. When ...
    Verlag: SPIE International Society for Optical Engineering , Bellingham

    NDE applications in an anchor bolt and sign bridge inspection program

    Fish, P.E. | Tema Archiv | 1998
    Verlag: SPIE International Society for Optical Engineering , Bellingham

    Integration of piezoceramic actuators in fiber-reinforced structures for aerospace applications

    Durr, J. / Herold-Schmidt, U. / Zaglauer, H.W. et al. | Tema Archiv | 1998
    Up to now experimental and theoretical research on active structures for aerospace applications has put the focus mainly on surface bonded ...

    Molecularly oriented polymeric thin films for space applications

    Fay, C.C. / Stoakley, D.M. / St. Clair, A.K. | Tema Archiv | 1998
    the earth has focused attention on organic polymeric materials for a variety of applications in space. Some polymeric materials have exhibited ...
    Verlag: Society for the Advancement of Material and Process Engineering (SAMPE) , Covina

    Evaluation and selection of replacement thermal control materials for the Hubble Space Telescope

    Townsend, J.A. / Hansen, P.A. / McClendon, M.W. et al. | Tema Archiv | 1998
    The mechanical and optical properties of the metallized Teflon FEP thermal control materials on the Hubble Space Telescope (HST) have ...
    Verlag: Society for the Advancement of Material and Process Engineering (SAMPE) , Covina

    Electrically conductive, low solar absorption, atomic oxygen resistant films for spacecraft thermal and charge control

    Lennhoff, J. / Guiles, M. / Harris, G. et al. | Tema Archiv | 1998
    There is a significant requirement for an electrically conductive thermal control film for the dissipation of spacecraft charging. The ...
    Verlag: Society for the Advancement of Material and Process Engineering (SAMPE) , Covina

    Vibration control of a flexible beam through a smart structure concept

    Goud, A.P. / Umapathy, M. | Tema Archiv | 1998
    Active control has become important in structural systems as an efficient tool for vibration suppression. A cantilever beam has been chosen ...

    Vehicular applications of smart material systems

    Leo, D.J. / Weddle, C. / Naganathan, N. et al. | Tema Archiv | 1998
    The results of an initial investigation in the use of smart material system for automobiles are presented. For this work, a smart material ...

    Nonlinear effects of electrorheological fluids and their application in smart avionic systems

    Berg, C.D. / Wellstead, P.E. | Tema Archiv | 1998
    envisaged, for example the control of the passive damping characteristics of a landing gear oleo. This could be beneficial to the airframers by ...

    Identification of mechanical properties of composite lamina using a distributed piezoelectric transducer

    Hong, Danbi / Ryou, Jung-Kyu / Park, Sungho et al. | Tema Archiv | 1998
    G12, are design parameters for the identification process. The proposed method is applied to predict the dynamic behavior of laminated ...

    Degradation of Hubble Space Telescope metallized Teflon FEP thermal control materials

    Hansen, P.A. / Townsend, J.A. / Yoshikawa, Y. et al. | Tema Archiv | 1998
    The mechanical and optical properties of the metallized Teflon Fluorinated Ethylene Propylene (FEP) thermal control materials on the Hubble ...
    Verlag: Society for the Advancement of Material and Process Engineering (SAMPE) , Covina

    Development of tailorable electrically conductive thermal control material system

    Deshpande, M.S. / Harada, Y. / Vaughn, J. | Tema Archiv | 1998
    material design concepts that can provide required electrical conductivity along with acceptable optical and thermal properties performance when ...
    Verlag: Society for the Advancement of Material and Process Engineering (SAMPE) , Covina

    Analysis of retrieved Hubble Space Telescope thermal control materials

    Townsend, J.A. / Hansen, P.A. / Dever, J.A. et al. | Tema Archiv | 1998
    The mechanical and optical properties of the thermal control materials on the Hubble Space Telescope (HST) have degraded over the nearly ...
    Verlag: Society for the Advancement of Material and Process Engineering (SAMPE) , Covina

    Solar absorption of the FEP samples returned from the HST Servicing Missions

    He, C. / Townsend, J.A. | Tema Archiv | 1998
    Missions (SMs), was measured to assess the effect of the space environment on the optical properties of the material. The solar absorptance of the ...
    Verlag: Society for the Advancement of Material and Process Engineering (SAMPE) , Covina