Journal
JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
Volume 140, Issue 4, Pages 2867-2875Publisher
ACOUSTICAL SOC AMER AMER INST PHYSICS
DOI: 10.1121/1.4964632
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Relatively compact analytical expressions in the form of fast-converging expansions are derived for the radiation resistance and reactance of a rectangular rigid piston in an infinite rigid baffle, which are computationally efficient at high frequencies or large aspect ratios and yield simple approximations ( asymptotic expressions) at low frequencies. Plots of the normalized radiation resistance and reactance are shown for various aspect ratios with constant width as well as constant area. Comparisons are also made with the impedance of an elliptic piston. (C) 2016 Acoustical Society of America.
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