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Negative mass and elasticity

  • Classical Problems of Linear Acoustics and Wave Theory
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Abstract

The paper introduces the concept of equivalent mass and elasticity. The physical sense of their negative values is explained, and it is demonstrated that they do not contradict the laws of conservation of energy and impulse. Formulas are introduced to calculate the energy of equivalent mass and elasticity. The limits on the character of their frequency dependences are formulated. In particular, it is noted that it is impossible for negative mass and elasticity to be independent of frequency.

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Authors and Affiliations

  1. Blagonravov Mechanical Engineering Research Institute, Russian Academy of Sciences, Malyi Kharitonievskii per. 4, Moscow, 101990, Russia

    Yu. I. Bobrovnitskii

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  1. Yu. I. Bobrovnitskii
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Correspondence to Yu. I. Bobrovnitskii.

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Original Russian Text © Yu.I. Bobrovnitskii, 2012, published in Akusticheskii Zhurnal, 2012, Vol. 58, No. 1, pp. 36–41.

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Bobrovnitskii, Y.I. Negative mass and elasticity. Acoust. Phys. 58, 30–33 (2012). https://doi.org/10.1134/S1063771012010046

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  • DOI: https://doi.org/10.1134/S1063771012010046

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