121–140 von 148 Ergebnissen
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    Impact analysis of automotive structures with distributed smart material systems

    Peelamedu, S.M. / Naganathan, N.G. / Buckley, S. | Tema Archiv | 1999
    material site is predicted accounting for the material properties, piezoceramic thickness, adhesive thickness including the effect of adhesives. A ...

    Drop-test study of parachute textile with embedded fiber optic sensors

    Li, Min / Li, Yulin | Tema Archiv | 2005
    fiber Bragg grating (FBG) sensors are taken into the comparison between the optical and mechanical testing results. Drop test results from both ...

    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 ...

    Application of smart materials in automotive structures

    Manz, H. / Breitbach, E. | Tema Archiv | 2001
    The demand in the automobile sector for greater comfort in the vehicle is of high importance alongside the requirements for a low emission ...

    Structural health monitoring using FBG sensor in space environment

    Kabashima, S. / Ozaki, T. / Takeda, N. | Tema Archiv | 2001
    expected to be a very useful tool. The authors are developing a health monitoring system for satellites utilizing a FBG (fiber Bragg grating ...

    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 ...

    Integrated wireless piezoelectric sensors

    Ihler, E. / Zaglauer, H.W. / Herold-Schmidt, U. et al. | Tema Archiv | 2000
    the service life, for instance of an aircraft. Complex sensor systems will require significant additional expenditures with respect to cabling ...

    Development of damage suppression system using embedded SMA foil sensor and actuator

    Ogisu, T. / Nomura, M. / Andou, N. et al. | Tema Archiv | 2000
    Recent studies suggest possible applications of shape memory alloy (SMA) for smart health monitoring and suppression of damage growth. The ...

    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 ...

    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

    The pizoelectric aeroelastic response tailoring investigation: a status report

    Heeg, J. / McGowan, A. / Crawley, E. et al. | Tema Archiv | 1995
    Experimental and analytical investigations are described about using piezoelectric actuators for tailoring the aeroelastic response of a ...

    Narrow and broad band sound reduction in automotive panels

    Giovanardi, M. / Schmidt, K. / Kunze, H. | Tema Archiv | 2001
    the FEM. Optimal control laws were determined, using system models based on control and disturbance transfer functions. For narrowband control ...

    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 ...

    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 ...

    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 ...

    Fabrication of adhesiveless lightweight flexible circuits using Langley Research Center soluble-imide "LaRC-SI" polyimide film

    Holloway, N.M.H. / Barnes, K.N. / Draughon, G.K. et al. | Tema Archiv | 2002
    for lighter-weight systems. With this, flex circuits are being used in lieu of heavier weight rigid circuit boards and flex is finding its way ...

    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 ...

    Environmentally responsive material to address human-system interaction in the automotive cockpit

    Rehkopf, J.D. / Barbat, S.D. / Goldman, N.M. et al. | Tema Archiv | 2001
    There is significant human-system interaction in an automotive cockpit, and for particular components this interaction can be ever-present ...

    Feasibility of using piezoelectric actuators to control launch vehicle acoustics and structural vibrations

    Niezrecki, C. / Cudney, H.H. | Tema Archiv | 2000
    model for the actuator and boundary element analysis. The experimentally validated model is used to extrapolate results for an SS cylinder that ...

    Industrial and commercial applications of bi-stable reeled composites

    Compton-Bishop, Q.M. / Daton-Lovett, A.J. / Curry, R.G. | Tema Archiv | 2000
    their retracted length. Used for the remote deployment of cameras and other tools into hazardous environments, BRC actuators have facilitated ...