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Excitation of parametric resonances in mechanisms with rheonomic constraints subject to the joint effect of fast and slow variations of parameters

  • Mechanics of Machines
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Abstract

As applied to the dynamics of machines with rheonomic constraints, the dynamic stability conditions are studied within the frequency range of parametric resonances, with due account taken of impulse and slow variations of parameters. A modification is suggested for the conditional oscillator method, and the level of dissipation is determined on its basis, which is necessary to suppress parametric resonances and eliminate the amplitude modulation of oscillations within the kinematic cycle. Given properly selected parameters, the stability conditions are demonstrated to be independent of dissipation.

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Authors and Affiliations

  1. St. Petersburg State University of Technology and Design, ul. Bol’shaya Morskaya 18, St. Petersburg, 191186, Russia

    I. I. Vulfson

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  1. I. I. Vulfson
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Correspondence to I. I. Vulfson.

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Original Russian Text © I.I. Vulfson, 2016, published in Problemy Mashinostroeniya i Nadezhnosti Mashin, 2016, No. 2, pp. 3–12.

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Vulfson, I.I. Excitation of parametric resonances in mechanisms with rheonomic constraints subject to the joint effect of fast and slow variations of parameters. J. Mach. Manuf. Reliab. 45, 95–103 (2016). https://doi.org/10.3103/S1052618816020163

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  • DOI: https://doi.org/10.3103/S1052618816020163

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