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Analysis of Membrane Vibration
Resonant Frequencies for m 0 Modes
The CenterSupported Membrane
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acoustic impedance acoustic intensity allowed frequencies Attn average displacement back cavity back-cavity Bessel Functions boundary condition calculated curve Cambridge capacitance capillary action cement center support circuit circular Commanding Officer Office compute Cruft Laboratory cylinder D. C. 1 copy damping DEFLECTION AT CENTER depth of cavity determine Diffraction of Sound disk effect Electro-acoustics electrode electrode spacing Electrostatic Loudspeakers equation 14 equilibrium equivalent mass F. M. Wiener F. V. Hunt film flexible membrane gauze Harvard University integral JQ(kb kinetic and potential measured mechanical impedance mechanical mesh membrane tension micrometer microphone membranes modes Mylar Naval Research negative stiffness NQ(kb Office of Naval physical constants polarizing voltage polyethylene terephthalate position preamplifier pressure resonant frequencies result rigid plate Saran signal soldering paste solution sound field Square Plate static Stereophony stretched membrane stretcher Technical Memorandum temperature term U.S. Navy values velocity of sound Vibration wattmeter York zero