A Model for a Thin Magnetostrictive Actuator in Nonlinear Dynamics

Autor:	G. B. Nkamgang, A. Fomethe, Pierre Kisito Talla, V. Kamdoum Tamba, E. Foadieng
Rok vydání:	2015
Předmět:	Physics Nonlinear system Hysteresis General Computer Science Numerical analysis Dynamics (mechanics) General Engineering Magnetostriction Mechanics Actuator Stability (probability) Multiple-scale analysis
Zdroj:	Research Journal of Applied Sciences, Engineering and Technology. 11:1245-1256
ISSN:	2040-7467 2040-7459
DOI:	10.19026/rjaset.11.2232
Popis:	In this study, we propose a model for the dynamics of magnetostrictive hysteresis in a thin rod actuator when mechanically the material works in his nonlinear domain. We derive two equations that represent magnetic and mechanical dynamics equilibrium. Our model results from an application of the energy balance principle. The numerical simulations of the model with sinusoidal periodic external fieldgenerate the hysteresis curve and show the equivalent mechanic model. By using the method of multiple scales we analyze the effects of the nonlinear parameter in the system response of magnetostrictive materials. With Routh-Hurwitz theorem, the stability and bifurcation analysis are carried out. Analytical and numerical methods are used to investigate the dynamics of the materials.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8049d43ed7cea81e57b2c57c5a575793 https://doi.org/10.19026/rjaset.11.2232 Zobrazit plný text záznamu