Piezoelectric Composite Vibrator with a Bilaminated Structure for Bending Vibration

Round 1

Reviewer 1 Report

Please address the following comments

(a) Please provide more real-world applications for this device in introduction.

(b) What is the geometry of piezoelectric ceramic bilaminated vibrator, whose results are given in fig. 8b and 14b.

(c) How is piezoelectric ceramic bilaminated vibrator specimen prepared for experiments?

(d) what are the boundary conditions used in numerical simulations (Fig. 6) and experiments (Fig. 13). If possible please provide a picture of experiment.

(e) in the abstract its mentioned that five 1-3 vibrators are prepared. But no experimental results of 1-3 vibrators are provided.

(f) Please provide the source of material property data in Table 1. 

(g) what is the reason for different results in simulations (Fig. 8b) and experiment (Fig. 14b)

Author Response

      Thank you for your genuine comments and suggestions, we have revised the manuscript according to your comments and report point-by-point the details of the revisions in the manuscript to you in the following document.

Author Response File: Author Response.pdf

Reviewer 2 Report

The paper is devoted to a piezoelectric bilaminated composite vibrator with lower resonance frequency and larger vibration displacement. Such kind vibrators could be useful for development of low frequency acoustic transducers. The paper is well organized and consisted of modeling and experimental parts. By using ANSYS authors compared two types of piezoelectric composite vibrators like 1-3 and 2-2. They obtained interesting results concerning the development of piezoelectric composite 2-2 vibrator characterized by vibration displacement increased.

This paper could be published in Applied Science.

I have a few questions and suggestions.

 

I think it will be good to include in Introduction some papers devoted to application of piezoelectric composite vibrator, for example,

- Hwang  Y. et al. An underwater parametric array source transducer composed of PZT/thin-polymer composite//Sensors and Actuators A-Physical, 2018, v.279, pp.601-616, DOI: 10.1016/j.sna.2018.06.054.

- Kuznetsova I.E., Zaitsev B.D., Borodina I.A., Shikhabudinov A.M., Teplykh A.A., Manga E., Feuillard G. The effect of nanocomposite polymeric layer on the radiation of antisymmetric zero-order Lamb wave in a piezoelectric plate contacting with liquid// J. of Appl. Phys., 2013, v.113, 224507, DOI: 10.1063/1.4810905

 

It will be good to expand review of the properties of piezoelectric composites consist of PZT-5H piezoceramic.

- Mi X. et al Electromechanical coupling coefficient and acoustic impedance of 1-1-3 piezoelectric composites// Ceramics International, 2017, v.43, #9, pp.7374-7377, DOI: 10.1016/j.ceramint.2017.02.148

- Rao C. V. Madhusudhana, et al. Characterization of piezoelectric polymer composites for MEMS devices// Bulletin of Material Science, 2012, v.35, #4, pp.579-584 DOI: 10.1007/s12034-012-0319-1

- Uchino, K. Piezoelectric composite materials// Advanced Piezoelectric Materials: Science and Technology, 2010, pp.318-346

Because epoxy resin is viscous material it is necessary to discuss how authors have taken it into account during ANSYS analysis.

Author Response

Thank you for your genuine comments and suggestions, we have revised the manuscript according to your comments and report point-by-point the details of the revisions in the manuscript to you in the following document. 

Author Response File: Author Response.pdf