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A new type of hydromechanical cochlear model is described. Both straight and coiled models have been produced, with the goal of examining differences in wave motion in the two geometries experimentally. The single duct system is fabricated using a novel, low cost, flexible manufacturing approach based on computer controlled laser cutting, thermal shrink films, and bonding. Steady state vibration ... read morepatterns were observed using laser vibrometry. Forward traveling waves are observed for all frequencies. At high frequencies, more complex vibration patterns appear including higher order crossmodes, backward traveling waves, and standing waves. The coiled model exhibits more asymmetry in the structural vibration shape in the radial (cross‐duct) direction than the straight model.read less
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