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An acoustic wave is a physical phenomenon responsible for the transfer of dilata-tional and shear strains [11–16]. Generally, acoustic waves of three sorts can propagate along a certain direction, each of them spreading at its own velocity and imparting oscillatory motion in particles of the medium in its own direction – wave polarization. Only two sorts of(More)
In this paper, the rate limiter describing function is used to analyze by harmonic balance the existence of limit cycles in first order plants. Next, by comparison with analytical results previously obtained by the authors, the accuracy of the above approximate predictions is assessed. The main conclusion is that from a qualitative point of view the(More)
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