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    Power systems and requirements for integration of smart structures into aircraft

    Lockyer, Allen J. / Martin, Christopher A. / Lindner, Douglas K. et al. | Tema Archiv | 2004
    (SMAs); full-span, chord-wise and span-wise contouring trailing control surfaces that use SMA or piezoelectric materials for actuation; and ...

    Smart Material-actuated Rotor Technolnnogy - SMART

    Straub, Friedrich K. / Kennedy, Dennis K. / Domzalski, David B. et al. | Tema Archiv | 2004
    actuator uses two biaxial SMA tubes for actuation/bias, an SMA-activated lock for power-off operation, and integrated microprocessor control ...

    Development and whirl tower test of the SMART active flap rotor

    Straub, F.K. / Kennedy, D.K. / Stemple, A.D. et al. | Tema Archiv | 2004
    demonstrate the feasibility and practicality of applying smart materials for limited authority, active control on a helicopter rotor. Follow-on ...

    Smart material actuators for airfoil morphing applications

    Tieck, R.M. / Mohanchandra, K.P. / Carman, G.P. | Tema Archiv | 2004
    accomplishments in the area of the tribology of NiTi, both shape memory and pseudoelastic, is provided. The results of the baseline testing of the ...

    Design, fabrication, and testing of a scaled wind tunnel model for the smart wing project

    Martin, Christopher A. / Hallam, Brian J. / Flanagan, John S. et al. | Tema Archiv | 2004
    DARPA/AFRL/NASA Smart Wing Program," SPIE Symposium on Smart Structures and Materials, Newport Beach, CA, Vol. 3674, pp. 230-6; Martin, C.A. et ...

    Actuator technology - driver of aerospace systems innovation

    Jänker, P. / Grohmann, B.A. / Bossche, D. van den | Tema Archiv | 2004
    control: the so-called smart structures. The core of active structures is a disruptive actuation technology based on mechanically active materials ...

    Effect of static, dynamic, thermal, and humidity loading on fatigue life of fiber optic cables

    El-Sabbagh, Adel / Baz, Amr M. | SPIE | 2004
    structures as repairs are generally very costly and time consuming. Thus, the feasibility of using optical fibers in various aircraft structures ...

    Investigation of synthetic jet actuator design parameters

    Ugrina, S. / Flatau, A.B. | Tema Archiv | 2004
    research has demonstrated that oscillating micro-jets have the potential to influence the flow characteristics and change the aerodynamic ...

    Design and analysis of a magnetorheological damper for train suspension

    Lau, Yiu-Kee / Liao, Wei-Hsin | Tema Archiv | 2004
    of railway vehicle suspensions such as passive, active, and semi-active systems could be used to cushion passengers from vibrations. Among ...

    Actuation of MAV control surface using conducting shape memory polymer actuator

    Goo, Nam-Seo / Paik, Il-Hyun / Yoon, Kwang-Joon et al. | Tema Archiv | 2004
    conductivity was manufactured and its properties were measured. Second, conceptual designs of special actuating systems for control surface of micro ...

    Quadrature mechatronic actuator (QMA) drives for heavy ship doors and machinery

    Knowles, G.J. / Bird, R.W. / Goehrig, M.J. et al. | Tema Archiv | 2004
    An important part of the navy objectives is to be both more efficient and enable manpower reduction is to reduce maintenance, reduce ...

    Wheel slip control of ABS using ER valve pressure modulator

    Choi, Seung-Bok / Cho, Myung-Soo / Kim, Yong-Il et al. | Tema Archiv | 2004
    electrorheological (ER) valve pressure modulator. The principal design parameters of the ER valves and hydraulic booster are appropriately determined 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
    Measurement of the moisture and corrosion rate within occluded regions is difficult because of their inherent restricted access. The ...

    A comparative analysis of passive twin tube and skyhook MRF dampers for motorcycle front suspensions

    Ahmadian, M. / Gravatt, J. | Tema Archiv | 2004
    , as the suspension systems are designed primarily for racing purposes. Front suspension acceleration and shock loading transmit directly ...

    Amplified piezoelectric actuators: from aerospace to underwater applications

    Bouchilloux, P. / Claeyssen, F. / Le Letty, R. | Tema Archiv | 2004
    times. To meet these requirements, several classes of actuators based on low-voltage piezoelectric materials have been developed, and, in the ...

    Miniature vibration isolation system for space applications-phase II

    Jacobs, J.H. / Ross, J.A. / Hadden, S. et al. | Tema Archiv | 2004
    materials and structures technology that will enable programmable and retrofittable vibration control of spacecraft precision payloads. This paper ...

    Experiments on an offshore platform model by FBG sensors

    Li, Dongsheng / Li, Hongnan / Ren, Liang et al. | Tema Archiv | 2004
    Optical fiber sensors show superior potential for structural health monitoring of civil structures to ensure their structural integrity ...

    Control of a quarter HMMWV suspension system using a magneto-rheological fluid damper

    Karakas, E.S. / Gordaninejad, F. / Evrensel, C.A. et al. | Tema Archiv | 2004
    The focus of this study is to experimentally investigate and compare the performance of a non-symmetric (different force characteristics in ...

    Dynamic tire forces in vehicles with semi-active suspensions

    Pesterev, A.V. / Tan, Chin-An / Bergman, L.A. | Tema Archiv | 2004
    vehicle suspensions on the dynamic tire forces are examined for the development of smart suspension systems for pavement- and bridge-friendly ...

    Active periodic struts for gearbox support system

    Asiri, S. / Baz, A.M. / Pines, D.J. | Tema Archiv | 2004
    a result, waves can propagate along the periodic structures only within specific frequency bands called the "pass bands" and wave ...

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