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- Title
Hybrid Strategy of Partitioned and Monolithic Methods for Solving Strongly Coupled Analysis of Inverse and Direct Piezoelectric and Circuit Coupling.
- Authors
Daisuke Ishihara; Syunnosuke Nozaki; Tomoya Niho; Naoto Takayama
- Abstract
The inverse and direct piezoelectric and circuit coupling are widely observed in advanced electro-mechanical systems such as piezoelectric energy harvesters. Existing strongly coupled analysis methods based on direct numerical modeling for this phenomenon can be classified into partitioned or monolithic formulations. Each formulation has its advantages and disadvantages, and the choice depends on the characteristics of each coupled problem.This studyproposes a newoption: a coupledanalysis strategy that combines thebest featuresof the existing formulations, namely, the hybrid partitioned-monolithic method. The analysis of inverse piezoelectricity and the monolithic analysis of direct piezoelectric and circuit interaction are strongly coupled using a partitioned iterative hierarchical algorithm. In a typical benchmark problem of a piezoelectric energy harvester, this research compares the results fromthe proposedmethod to those fromthe conventional strongly coupled partitioned iterativemethod, discussing the accuracy, stability, and computational cost. The proposed hybrid concept is effective for coupled multi-physics problems, including various coupling conditions.
- Subjects
BENCHMARK problems (Computer science); PIEZOELECTRICITY; WIRELESS sensor nodes; ENERGY harvesting
- Publication
CMES-Computer Modeling in Engineering & Sciences, 2024, Vol 140, Issue 2, p1371
- ISSN
1526-1492
- Publication type
Article
- DOI
10.32604/cmes.2024.049694