The present paper presents the design of an innovative low-frequency magnetostriuctive inertial actuator that is able to multiply by almost a factor of 10 the amplitude of striction-elongation amplitude of the magnetostrictive bar, thus leading to an increase in the generated force amplitude, and to obtain a working frequency from 30Hz up, i.e. well below the working frequencies of traditional magnetostrictive inertial actuators. Moreover, the design has been optimized through an analitical model and a finite element model taking into account all design parameters. The optimised low-frequencymagnetostriuctive inertial actuator has then be produced and its frequency response compared to that of a traditional magnetostrictive actuator made up of the same components (except for the supporting structure).
Low-frequency magnetostrictive inertial actuator
BRAGHIN, FRANCESCO;CINQUEMANI, SIMONE;RESTA, FERRUCCIO
2011-01-01
Abstract
The present paper presents the design of an innovative low-frequency magnetostriuctive inertial actuator that is able to multiply by almost a factor of 10 the amplitude of striction-elongation amplitude of the magnetostrictive bar, thus leading to an increase in the generated force amplitude, and to obtain a working frequency from 30Hz up, i.e. well below the working frequencies of traditional magnetostrictive inertial actuators. Moreover, the design has been optimized through an analitical model and a finite element model taking into account all design parameters. The optimised low-frequencymagnetostriuctive inertial actuator has then be produced and its frequency response compared to that of a traditional magnetostrictive actuator made up of the same components (except for the supporting structure).File | Dimensione | Formato | |
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