Finite element model updating of piezoceramic thin-walled tube transducers

Hu, Sau‐Lon James; Su, Liang; Cong, Shuai

doi:10.1016/j.tws.2021.108091

Cited by 5 publications

(3 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…where K c E ij is the change of K * UU due to the unit change of c E ij ; the same submatrix notation convention throughout this article applies to other material parameters as well. One can refer to [36] for how to extract those submatrices. For the isotropic material, K * UU is reduced to [36]…”

Section: Assumptions Of the D-form Parameters For The Fe Modelmentioning

confidence: 99%

“…One can refer to [36] for how to extract those submatrices. For the isotropic material, K * UU is reduced to [36]…”

Section: Assumptions Of the D-form Parameters For The Fe Modelmentioning

confidence: 99%

“…To distinguish from a general FE-based method, an iterative FEMU method is strictly defined as an approach that its iteration is to modify the system matrices directly based on the updated parameters, instead of going through a tedious process of inputting them to rebuild an FE model. While many articles have developed iterative FEMU methods for civil and mechanical systems [35], it seems that only one FEMU method, updating real-valued physical parameters, was developed for piezoceramic transducers [36]. At present, there is no FEMU method available for estimating CMPs of a piezoceramic transducer.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

An impedance-based pole-zero method for estimating complex material parameters of piezoceramic plates

Cong¹,

Hu²,

Li³

2022

Smart Mater. Struct.

Self Cite

View full text Add to dashboard Cite

Precisely determining complex-valued elastic, piezoelectric, and dielectric parameters of piezoceramic plates has been a challenging problem. Given measured impedance functions (MIFs), this study develops a pole-zero finite element model updating (FEMU) method for determining sensitive complex material parameters (CMPs) associated with k31-mode and k33-mode piezoceramic plates. The proposed method includes two novel aspects: (1) extracting complex-valued poles and zeros, which are related to the eigenvalues of short- and open-circuit FE models, respectively, from MIFs, and (2) developing a sensitivity-based FEMU method to update the CMPs based on the measured poles and zeros. In the numerical studies, both computer simulations and lab experiments are carried out to demonstrate the excellent performance of the developed method.

show abstract

Section: Assumptions Of the D-form Parameters For The Fe Modelmentioning

confidence: 99%

“…One can refer to [36] for how to extract those submatrices. For the isotropic material, K * UU is reduced to [36]…”

Section: Assumptions Of the D-form Parameters For The Fe Modelmentioning

confidence: 99%