1. Date of download: 10/12/2017
Copyright © ASME. All rights reserved.
From: Acoustic Radiation of a Cylindrical Piezoelectric Power Transformer
J. Appl. Mech. 2013;80(6): doi: /
Figure Legend:
Schematic illustration of a cylindrical power transformer. The radially polarized actuator and sensor are respectively subject to an input voltage Vin and an electrical impedance Z, with the metal wall grounded.

2. Date of download: 10/12/2017
Copyright © ASME. All rights reserved.
From: Acoustic Radiation of a Cylindrical Piezoelectric Power Transformer
J. Appl. Mech. 2013;80(6): doi: /
Figure Legend:
Variation of the nondimensional radiation resistance and reactance coefficients for the cylindrical transformer versus kfrso

3. Date of download: 10/12/2017
Copyright © ASME. All rights reserved.
From: Acoustic Radiation of a Cylindrical Piezoelectric Power Transformer
J. Appl. Mech. 2013;80(6): doi: /
Figure Legend:
Spectrum of surface velocity of the transformer. The thickness ratio of metal core layer to piezoelectric actuator/sensor takes hm/hp = 1, 2, and 3. The electrical impedance is Z = (1 + i)Z0. The blank circle dots denote the SSM results.

4. Date of download: 10/12/2017
Copyright © ASME. All rights reserved.
From: Acoustic Radiation of a Cylindrical Piezoelectric Power Transformer
J. Appl. Mech. 2013;80(6): doi: /
Figure Legend:
Spectrum of sound pressure at the transformer surface. The thickness ratio of metal core layer to piezoelectric actuator/sensor takes hm/hp = 1, 2, and 3. The electrical impedance is Z = (1 + i)Z0. The blank circle dots denote the SSM results.

5. Date of download: 10/12/2017
Copyright © ASME. All rights reserved.
From: Acoustic Radiation of a Cylindrical Piezoelectric Power Transformer
J. Appl. Mech. 2013;80(6): doi: /
Figure Legend:
Spectrum of sound power level at the transformer surface. The thickness ratio of metal core layer to piezoelectric actuator/sensor takes hm/hp = 1, 2, and 3. The electrical impedance is Z = (1 + i)Z0. The blank circle dots denote the SSM results.

6. Date of download: 10/12/2017
Copyright © ASME. All rights reserved.
From: Acoustic Radiation of a Cylindrical Piezoelectric Power Transformer
J. Appl. Mech. 2013;80(6): doi: /
Figure Legend:
Effects of electrical impedance on the sound power level of the transformer (hm/hp = 1).