21–40 von 157 Ergebnissen
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    Structural health monitoring of composites using integrated ultrasonic transducers

    Kobayashi, M. / Wu, K.T. / Song, L. et al. | Tema Archiv | 2008
    Two types of ultrasonic sensors are presented for structural health monitoring (SHM) and non-destructive testing (NDT) of graphite/epoxy ...

    Structural health management for aging aircraft

    Ikegami, R. / Haugse, E.D. | Tema Archiv | 2001
    An effective structural health management (SHM) system can be a useful tool for making aircraft fleet management decisions ranging from ...

    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 processing of biopolymer/metal composites for NLO applications

    Trantolo, D.J. / Mogul, M.G. / Wise, D.L. et al. | Tema Archiv | 1996
    optical materials). The authors have previously demonstrated the rationale for orienting biopolymers, materials with known supramolecular ...

    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

    Space durable polymeric films: advanced materials for inflatable structures and thermal control applications

    Schuler, P. / Haghighat, R. | Tema Archiv | 1999
    excellent VUV stability and radiation resistance in ground based simulation tests. Two applications for these films include large inflatable ...
    Verlag: Society for the Advancement of Material and Process Engineering (SAMPE) , Covina

    Sound and vibration control tests of Composite panel using piezoelectric sensors and actuators

    Takahashi, K. / Bansaku, K. / Sanda, T. et al. | Tema Archiv | 2001
    We have carried out tests for the sound and vibration control of the CFRP square panel. 500 Hz bandwidth noise through two speakers is ...

    Solid particle erosion performance of a new ultradurable AR for silicon

    Clark, C.C. | Tema Archiv | 2001
    protective or substrates must become more durable. For MWIR only systems it is logical to use silicon as a window or dome material as the natural ...

    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

    Soil moisture and electrical conductivity prediction and their implication for landmine detection technologies

    Katsube, T.J. / Keating, P.K. / McNairn, H. et al. | Tema Archiv | 2004
    Physical properties, such as soil moisture, magnetic susceptibility and electrical conductivity (EC) are sources of signal interference for ...

    Smart wide-area imaging sensor system (SWISS)

    Kress, K.P. / Dittrich, K. / Guse, G. | Tema Archiv | 2001
    For some structural components conventional methods of loads and usage monitoring, supplemented by on ground NDT measurements to detect ...

    Smart suspension systems for bridge-friendly vehicles

    Chen, Yonghong / Tan, C.A. / Bergman, L.A. et al. | Tema Archiv | 2002
    traversing a bridge are examined in order to develop various designs of smart suspension systems for bridge-friendly vehicles. The bridge-vehicle ...

    Smart materials for turbomachinery quieting

    Jonson, M.L. / Lysak, P.D. / Willits, S.M. | Tema Archiv | 2000
    materials for quieting turbomachinery. The team is composed of representatives from Pennsylvania State University, General Dynamics Electric Boat ...

    Smart fastener for KC-135 structural integrity monitoring

    Schoess, J.N. / Seifert, G. | Tema Archiv | 1997
    Hidden and inaccessible corrosion in aircraft structures is the number-one logistics problem for the U.S. Air Force, with an estimated ...

    Simultaneous monitoring of the corrosion activity and moisture inside aircraft lap joints

    Cooper, K.R. / Ma, Y. / Wikswo, J.P. et al. | Tema Archiv | 2004

    Shape memory alloy TiNi actuators for twist control of smart wing designs

    Jardine, A.P. / Kudva, J.N. / Martin, C. et al. | Tema Archiv | 1996
    being studied for a subscale model of a fighter aircraft. The use of the SME (Shape Memory Alloy) TiNi for wing twist actuation was investigated ...

    Shape memory actuated release devices

    Carpanter, B. / Clark, C. / Weens, W. | Tema Archiv | 1996
    vehicle, deployment of solar arrays and other appendages. Existing technologies may not be able to meet mechanism requirements for future ...

    Reflectivity of the Al-N coating: results of mechanical and environmental tests

    Anisimov, V.P. / Anisimova, I.A. / Kashirin, V.A. et al. | Tema Archiv | 2002
    environmental tests. The Al-N coating has been designed to reduce the stray sunlight background in the satellite-borne optical instruments and charge ...

    Recent advances in the quality of CVD diamond optical components

    Wort, C.J.H. / Pickles, C.S.J. / Beale, A.C. et al. | Tema Archiv | 1999
    Reports on the properties and applications of polished polycrystalline diamond optical components produced by chemical vapor deposition and ...

    Radiation qualification and testing of a large number of optical glasses used in the ESA fluid science laboratory onboard the columbus orbital Facility of the international space station

    Doyle, D.B. / Dewandre, T.M. / Claessens, D. et al. | Tema Archiv | 2002
    International Space Station (ISS) is a multi-user facility for the performance of microgravity research. It comprises a very complex optical bench ...