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Updated: Mar 28, 2026

Using Changes in Leaf Transmission to Investigate Chloroplast Movement in Arabidopsis thaliana
Published on: July 14, 2021
Modal sound transmission loss of a single leaf panel: Asymptotic solutions
1Global Noise and Vibration Center, General Motors Corporation, Milford, Michigan 48380, USA.
Abstract:
In a previously published paper [C. Wang, J. Acoust. Soc. Am. 137(6), 3514-3522 (2015)], the modal sound transmission coefficients of a single leaf panel were discussed with regard to the inter-modal coupling effects. By incorporating such effect into the equivalent modal radiation impedance, which is directly related to the modal sound transmission coefficient of each mode, the overall sound transmission loss for both normal and randomized sound incidences was computed through a simple modal superposition. Benefiting from the analytical expressions of the equivalent modal impedance and modal transmission coefficients, in this paper, behaviors of modal sound transmission coefficients in several typical frequency ranges are discussed in detail. Asymptotic solutions are also given for the panels with relatively low bending stiffnesses, for which the sound transmission loss has been assumed to follow the mass law of a limp panel. Results are also compared to numerical analysis and the renowned mass law theories.
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