Vibrations of Diaphragms
نویسندگان
چکیده
منابع مشابه
Oscillating Diaphragms
The manufacture of miniature Stirling cycle cryocoolers, using standard micro-machining techniques and materials has been pursued by the authors [1]. A MEMS based cryocooler would allow integration of a cryogenic cooling system directly into a cryoelectronic device. Resonant bossed diaphragms were proposed as the means to sweep the working gas in the Stirling cooler, replacing the pistons and d...
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A series of active piezoelectric diaphragms were fabricated and patterned with several geometrically defined Inter-Circulating Electrodes "ICE" and Interdigitated Ring Electrodes “IRE”. When a voltage potential is applied to the electrodes, the result is a radially distributed electric field that mechanically strains the piezoceramic along the Z-axis (perpendicular to the applied electric field...
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The Effect of Diaphragms in Prestressed Concrete
16. Abstract Four scale microconcrete model bridges were tested. Experimental variables included span, skew angle, stiffness, location and number of diaphragms. Service load level behavior was studied under static, cyclic and impact loads with successive removal of diaphragms. Behavior at overload and ultimate load conditions was documented from ultimate static and impact load tests. Characteri...
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By G. Gioia1, A. DeSimone2, M. Ortiz3 and A. M. Cu i t i ~ no4 1Theoretical and Applied Mechanics, University of Illinois, Urbana, IL 61801, USA ([email protected]) 2Max Planck Institute for Mathematics in the Sciences, 04103 Leipzig, Germany Graduate Aeronautical Laboratories, California Institute of Technology, Pasadena, CA 91125, USA 4Mechanical and Aerospace Engineering, Rutgers University, P...
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ژورنال
عنوان ژورنال: Scientific American
سال: 1889
ISSN: 0036-8733
DOI: 10.1038/scientificamerican03161889-167a