A new algorithm to calculate complex material parameters in piezoelectric stacks

Abstract In this paper, the hybrid differential evolution and symbiotic organism search (HDS), is the first-time developed for general solutions of a piezoelectric stack in ultrasonic transducers. The convergence and reliability of the new algorithm are verified through comparison with corresponding...

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Bibliographic Details
Published in:Latin American journal of solids and structures 2023-01, Vol.20 (3)
Main Authors: Ngo-Nhu, Khoa, Nguyen-Van, Sy, Luong-Viet, Dung, Nguyen-Dinh, Ngoc, Thi, Hoa Nguyen, Dang, Anh-Tuan, Bich, Ngoc-Nguyen Thi
Format: Article
Language:eng ; por
Subjects:
ENGINEERING, CIVIL
ENGINEERING, MECHANICAL
MECHANICS
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Summary:Abstract In this paper, the hybrid differential evolution and symbiotic organism search (HDS), is the first-time developed for general solutions of a piezoelectric stack in ultrasonic transducers. The convergence and reliability of the new algorithm are verified through comparison with corresponding data from similar previous publications and differential evolution (DE) algorithm. This study also presents and discusses the calculation results using HDS for commercial piezoelectric stacks. The Matlab HDS programs for a segmented piezoelectric (PZT) model have advanced features including its applicability to any configurations, thickness and arbitrary layer numbers of PZT. Using the novel proposed technique, there is no requirement for initial data guess, no limitations for piezoelectric stacks and the convergence rate is much faster than DE. Therefore, the HDS is promising for direct evaluation of specific aging or degradation mechanisms of ultrasonic transducers.
ISSN:1679-7817
1679-7825
1679-7825
DOI:10.1590/1679-78257491