121–140 von 157 Ergebnissen
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    Imaging ultrasonic sensor system SWISS completed 60000 simulated flight hours to check structural integrity of aircraft subcomponent

    Kress, K.P. / Baderschneider, H.J. / Guse, G. | Tema Archiv | 2003
    Many military platforms such as fighter aircraft are nowadays operated for several decades under sometimes varying missions. Additional ...

    Monitoring of the new Arsta Railway Bridge using traditional and fiber optic sensors

    Enckell-El Jemli, M. / Karoumi, R. / Lanaro, F. | Tema Archiv | 2003
    costs for reparation and maintenance and to ensure the safety of civil infrastructures, there is an increasing need in our society for health ...

    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 ...

    Health monitoring of structures using fiber optic sensors

    Asundi, A. | Tema Archiv | 1999
    monitoring since the design methodology for these materials is still under development. While conventional NDT methods are improving, an on-line ...

    Numerical simulation of inflatable membrane structures

    Kolar, R. / Whittinghill, C. / Agrawal, B. | Tema Archiv | 2001
    Inflatable structures are effective in space applications, as they are weight, volume and cost competitive. For certain space applications ...

    Vibration control of a gossamer toroidal structure using smart material actuators and sensors

    Jha, A.K. / Inman, D.J. | Tema Archiv | 2003
    Gossamer or inflatable structures have been a subject of renewed interest for space applications because of their lightweight, on-orbit ...

    Vibration and shape control of hinged light structures using electromagnetic forces

    Matsuzaki, Y. / Miyachi, S. / Sasaki, T. | Tema Archiv | 2003
    This paper describes a new electromagnetic device for vibration control of a light-weighted deployable/retractable structure which consists ...

    Neural network application in damage identification using multi-scale sensing data

    Studer, M. / Peters, K. | Tema Archiv | 2003
    different material scales make the identification of damage difficult with a single sensing device. On the other hand, for aerospace applications ...

    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 ...

    Lamb wave assessment of fatigue damage in aluminum plates

    Grondel, S. / Moulin, E. / Delebarre, C. | Tema Archiv | 1999
    and compare it with delay evolution. Results are obtained for two types of fatigue sequences. It is experimentally shown that the relative ...

    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 ...

    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 ...

    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 ...

    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 ...