Study on Giant Magnetostrictive Material with Transducer Finite Element Analysis

Jia Deng

doi:10.4028/www.scientific.net/AMR.700.3

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Study on Giant Magnetostrictive Material with Transducer Finite Element Analysis
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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 700Study on Giant Magnetostrictive Material with...

Study on Giant Magnetostrictive Material with Transducer Finite Element Analysis

Abstract:

Giant magnetostrictive transducer in the work show strong magnetic mechanical coupling characteristics and nonlinear characteristics, its magnetic state and mechanical state influence each other, coupling process is very complicated, this paper according to the giant magnetostrictive material features, combined with the magnetic domain theory, establish the super magnetostrictive micro displacement actuator model, Explore stress and magnetic field changes, GMM inner magnetic strength change, and the change of strain. Join based on giant magnetostrictive actuator structure and working principle, from the principle of physics, mathematics phenomenological theory Angle to establish the combination of the mathematical model of giant magnetostrictive actuator: According to the actuator output power and output displacement, combined with the equation of motion establish output displacement - output force model. According to an internal magnetic induction intensity change, establish actuator induction voltage model; According to J-A model magnetization model. By using the finite element theory and the Hamilton principle of minimum potential energy, energy conservation principle to this mathematical model, and analyze the result.

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Periodical:

Advanced Materials Research (Volume 700)

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3-6

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.700.3

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Online since:

May 2013

Authors:

Jia Deng

Keywords:

Finite Element, Magnetostrictive, Material, Transducer

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