Symmetry-breaking and pull-down motion for the Helmholtz–Duffing oscillator

Autor:	Jing-Yan Niu, Chun-Hui He, Abdulrahman Ali Alsolami
Jazyk:	angličtina
Rok vydání:	2024
Předmět:	Control engineering systems. Automatic machinery (General) TJ212-225 Acoustics. Sound QC221-246
Zdroj:	Journal of Low Frequency Noise, Vibration and Active Control, Vol 43 (2024)
Druh dokumentu:	article
ISSN:	1461-3484 2048-4046 14613484
DOI:	10.1177/14613484231193261
Popis:	An accurate frequency of the Helmholtz–Duffing oscillator is obtained by a sophisticated modification of He’s frequency formulation. The pull-down instability existing in the symmetric breaking phenomenon is a newly discovered dynamic motion for oscillators with even nonlinearities. A criterion for predicting the asymmetrical amplitude motion and the pull-down instability is built by measuring the amplitude change. The good matching performance between the analytic results and numerical ones indicates that the criterion offers a starting point for future research into the pull-down phenomenon, and opens a new path for studying more complex nonlinear oscillators with even nonlinearities.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/ea38353f565b4342a3801eed95329f5c Zobrazit plný text záznamu View record in DOAJ Plný text ve formátu PDF Plný text ve formátu HTML
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