2018
DOI: 10.1038/s41598-018-24383-2
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Effects of noise on the internal resonance of a nonlinear oscillator

Abstract: We numerically analyze the response to noise of a system formed by two coupled mechanical oscillators, one of them having Duffing and van der Pol nonlinearities, and being excited by a self–sustaining force proportional to its own velocity. This system models the internal resonance of two oscillation modes in a vibrating solid beam clamped at both ends. In applications to nano– and micromechanical devices, clamped–clamped beams are subjected to relatively large thermal and electronic noise, so that characteriz… Show more

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Cited by 22 publications
(12 citation statements)
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“…Several groups [32,[123][124][125][126][127][128] have developed mathematical models to explain and explore the energy transfer among vibration modes using lumped-mass parameter systems or distributed parameter models using for instance the Euler-Bernoulli beam equation [32,123]. For example, Zanette [125][126][127] performed in-depth theoretical analysis on the modal coupling and energy transfer among vibration modes of micro and nanomechanical systems.…”
Section: Linear and Nonlinear Modal Couplingmentioning
confidence: 99%
“…Several groups [32,[123][124][125][126][127][128] have developed mathematical models to explain and explore the energy transfer among vibration modes using lumped-mass parameter systems or distributed parameter models using for instance the Euler-Bernoulli beam equation [32,123]. For example, Zanette [125][126][127] performed in-depth theoretical analysis on the modal coupling and energy transfer among vibration modes of micro and nanomechanical systems.…”
Section: Linear and Nonlinear Modal Couplingmentioning
confidence: 99%
“…Some of the benefits achieved under IR conditions are as follows. •Achieving more robustness to noise at the higher quality factors [ 496 ] and eliminating the electrical noise in the feedback circuit due to sustaining the stable vibrations without external excitation through the energy exchange between coupled modes. [ 444 ] •Enhancing signal gain in high‐quality‐factor vibratory gyroscopes.…”
Section: Fundamental Concepts Of Nano/micromechanical Resonatorsmentioning
confidence: 99%
“…As a result, there has been significant interest in suppressing the nonlinearity of MEMS resonators to enhance their frequency stability [15][16][17][18][19]. Recently, researchers have proposed utilizing the non-linear phenomenon of internal resonance (InRes) as a new approach to stabilizing frequency fluctuations [20][21][22][23][24][25][26][27][28]. In a non-linear system, InRes can arise in an undriven vibrational mode by internally transferring energy from another vibrational mode that is externally driven when the two modal frequencies are commensurable into an m:n ratio (where m and n are integers) [29,30].…”
Section: Introductionmentioning
confidence: 99%