Algorithm Selection Method Based on Coupling Strength for Partitioned Analysis of Structure-Piezoelectric-Circuit Coupling  

作　　者：Daisuke Ishihara Naoto Takayama 

机构地区：[1]Department of Intelligent and Control Systems,Kyushu Institute of Technology,Iizuka,820-8502,Japan

出　　处：《Computer Modeling in Engineering & Sciences》2024年第2期1237-1258,共22页工程与科学中的计算机建模（英文）

基　　金：the Japan Society for the Promotion of Science,KAKENHI Grant Nos.20H04199 and 23H00475.

摘　　要：In this study, we propose an algorithm selection method based on coupling strength for the partitioned analysis ofstructure-piezoelectric-circuit coupling, which includes two types of coupling or inverse and direct piezoelectriccoupling and direct piezoelectric and circuit coupling. In the proposed method, implicit and explicit formulationsare used for strong and weak coupling, respectively. Three feasible partitioned algorithms are generated, namely(1) a strongly coupled algorithm that uses a fully implicit formulation for both types of coupling, (2) a weaklycoupled algorithm that uses a fully explicit formulation for both types of coupling, and (3) a partially stronglycoupled and partially weakly coupled algorithm that uses an implicit formulation and an explicit formulation forthe two types of coupling, respectively.Numerical examples using a piezoelectric energy harvester,which is a typicalstructure-piezoelectric-circuit coupling problem, demonstrate that the proposed method selects the most costeffectivealgorithm.

关 键 词：MULTIPHYSICS coupling strength partitioned algorithm structure-piezoelectric-circuit coupling strongly coupled algorithm weakly coupled algorithm 

分 类 号：O17[理学—数学]