II. How To Use ATILA

0.4 Final Exam Report
Optimization with ATILA FEM


PROBLEM - An optimized piezoelectric/magnetostrictive device



1.
Consider a suitable piezoelectric or magnetostrictive device, which can be optimized in its design by using ATILA FEM software. Choose a device which has not been treated in this course.
1.a

Examples (not limited):
(1) Dot-ring type transformer - By changing the center ring size (keeping the outer diameter of the disk), how can we obtain the maximum electrical power?
(2) Metal-Tube motor - By changing the PZT plate angle (different from the original 90 degree), how can we increase the wobbling displacement?
(3) Cymbal Underwater transducer - By changing the metal and/or piezoelectric ceramic thickness (keeping the outer diameter of the cymbal), how can we increase the sound power?
(4) Magnetostrictive and piezoelectric laminated film - By changing the thickness ratio, how can we increase the magneto-electric sensor sensitivity?

3.
Discuss the obtained optimized value(s) from the physical/analytical viewpoints.
4.
Prepare the Power Point presentation file for the final presentation exam purpose. 10 min presentation (7-10 slides) including Background, Changing parameters, Simulation result, and Summary/Conclusion.

 
References:

(1) Laoratanakul, P., A. V. Carazo, P. Bouchilloux and K. Uchino, “Unipolarized Disk-type Piezoelectric Transformers,” Jpn. J. Appl. Phys. 41, 1446-1450 (2002).

(2) Cagatay, S., B. Koc and K. Uchino, "Piezoelectric Ultrasonic Micromotors for Mechatronic Applications," Proc. 9th Int'l Conf. New Actuators, A4.2, p. 132-134, Bremen, Germany, June 14-16 (2004).

(3) Ryu, J., S. Priya, A. V. Carazo, K. Uchino, H.-E Kim, " Effect of the Magnetostrictive Layer on Magnetoelectric Properties in Pb(Zr,Ti)O3/Terfenol-D Laminate Composites", J. Am. Ceram. Soc., 84, 2905-2908 (2001).