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Article Dans Une Revue Proceedings of the Royal Society of London. Series A, Mathematical and physical sciences Année : 2017

Entropy in sound and vibration: towards a new paradigm

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This paper describes a discussion on the method and the status of a statistical theory of sound and vibration, called statistical energy analysis (SEA). SEA is a simple theory of sound and vibration in elastic structures that applies when the vibrational energy is diffusely distributed. We show that SEA is a thermodynamical theory of sound and vibration, based on a law of exchange of energy analogous to the Clausius principle. We further investigate the notion of entropy in this context and discuss its meaning. We show that entropy is a measure of information lost in the passage from the classical theory of sound and vibration and SEA, its thermodynamical counterpart.
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hal-02390112 , version 1 (19-12-2019)

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Alain Le Bot. Entropy in sound and vibration: towards a new paradigm. Proceedings of the Royal Society of London. Series A, Mathematical and physical sciences, 2017, 473, ⟨10.1098/rspa.2016.0602⟩. ⟨hal-02390112⟩
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