scholarly journals Giant Magnetosctrictive Material and the Application to Actuators and Devices. Acoustic Vibration Element using Giant Magnetostrictive Material.

1994 ◽  
Vol 60 (12) ◽  
pp. 1717-1718
Author(s):  
Hirovuki WAKIWAKA
Keyword(s):  
Acoustic Vibration ◽  
Magnetostrictive Material ◽  
Giant Magnetostrictive Material

scholarly journals Effect of Magnetic Bias on Acoustic Vibration Element Using Giant Magnetostrictive Material.

1992 ◽  
Vol 16 (2) ◽  
pp. 389-392 ◽  
Author(s):  
H. Wakiwaka ◽  
M. Nagumo ◽  
M. Iio ◽  
H. Yamada ◽  
M. Igarashi ◽  
...  
Keyword(s):  
Acoustic Vibration ◽  
Magnetic Bias ◽  
Magnetostrictive Material ◽  
Giant Magnetostrictive Material

Improvement of flux density uniformity in giant magnetostrictive material for acoustic vibration element

1993 ◽  
Vol 29 (6) ◽  
pp. 2443-2445 ◽  
Author(s):  
H. Wakiwaka ◽  
T. Umezawa ◽  
H. Yamada ◽  
K. Kobayashi ◽  
T. Yoshikawa
Keyword(s):  
Flux Density ◽  
Acoustic Vibration ◽  
Magnetostrictive Material ◽  
Giant Magnetostrictive Material

Effect of Magnetic Bias on Acoustic Vibration Element Using Giant Magnetostrictive Material

1993 ◽  
Vol 8 (2) ◽  
pp. 107-111 ◽  
Author(s):  
H. Wakiwaka ◽  
M. Nagumo ◽  
M. Iio ◽  
H. Yamada ◽  
M. Igarashi ◽  
...  
Keyword(s):  
Acoustic Vibration ◽  
Magnetic Bias ◽  
Magnetostrictive Material ◽  
Giant Magnetostrictive Material

scholarly journals Development of a Direct-Drive Servovalve Using a Giant Magnetostrictive Material.

1993 ◽  
Vol 59 (563) ◽  
pp. 2112-2115
Author(s):  
Takahiro Urai ◽  
Takahiro Sugiyama ◽  
Takashi Nakamura ◽  
Katsuhisa Jinbo
Keyword(s):  
Direct Drive ◽  
Magnetostrictive Material ◽  
Giant Magnetostrictive Material

Modal FEM Analysis Using Weak Form Equations for a Microgyroscope with Bulk Giant Magnetostrictive Material (GMM) Resonator

2013 ◽  
Vol 650 ◽  
pp. 513-517
Author(s):  
Lei Yang ◽  
Feng Cui ◽  
Wu Liu ◽  
Xiao Sheng Wu ◽  
Wei Ping Zhang ◽  
...  
Keyword(s):  
Electromechanical Coupling ◽  
Fem Analysis ◽  
Weak Form ◽  
Response Analysis ◽  
Governing Equations ◽  
Third Order ◽  
Magnetostrictive Material ◽  
Giant Magnetostrictive Material ◽  
Harmonic Response Analysis ◽  
Important Basis

The structure and operation principle of a novel solid MEMS gyroscope with bulk giant magnetostrictive material (GMM) resonator are presented. A finite element method (FEM) for modal analysis of the GMM resonator is employed in which the fundamental magnetoelastic governing equations of the GMM are solved numerically using weak form equations of COMSOL Multiphysics. For a bulk GMM with size of 4×4×4 mm3, it is found that the third order vibration mode with frequency of 182 kHz meets working vibratory mode of the gyro sensor, which is verified by harmonic response analysis. Compared with analogy method which simulates the GMM as piezoceramics, this method is more practically reflect the operation state of GMM resonator of the microgyro due to consideration of Maxwell force in the weak form equations. This paper provides important basis for further full magnetic electromechanical coupling analysis of the microgyroscope.

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