Forced oscillations with linear and nonlinear damping

Autor:	Marvin G. Payne, Li Ma, David Keene, Xiaojun Wang, Ai-Jun Li, Joshua Klingel
Rok vydání:	2016
Předmět:	Physics Damping ratio Differential equation General Physics and Astronomy Resonance Mechanics 01 natural sciences 010305 fluids & plasmas law.invention Nonlinear system Thermoelastic damping law Drag 0103 physical sciences Magnetic damping Eddy current 010306 general physics
Zdroj:	American Journal of Physics. 84:32-37
ISSN:	1943-2909 0002-9505
DOI:	10.1119/1.4935358
Popis:	A general solution is derived for the differential equations of forced oscillatory motion with both linear damping ( ∼v) and nonlinear damping ( ∼v2). Experiments with forced oscillators are performed using a flat metal plate with a drag force due to eddy currents and a flat piece of stiffened cardboard with a drag force due to air resistance serving as the linear and nonlinear damping, respectively. Resonance of forced oscillations for different damping forces and quality factors is demonstrated. The experimental measurements and theoretical calculations are in good agreement, and damping constants are determined.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::9236dfd7dbbdb4de305645c5d3cd01c3 https://doi.org/10.1119/1.4935358 Zobrazit plný text záznamu