Finite element model updating of piezoceramic thin-walled tube transducers

Despite routine usages of finite element (FE) analysis on designing piezoceramic transducers, building FE models for these transducers unfortunately might involve significant errors because the required piezoceramic material values provided by the manufacturers are often inaccurate. Using only a few characteristic quantities extracted from a measured impedance function of the transducer, this study develops a novel methodology for updating sensitive material parameters of a piezoceramic thin-walled tube transducer; both short-and open-circuit models are utilized. The effectiveness of the proposed methodology is demonstrated through two numerical examples, including both computer simulation and lab experiment.

Automated summary

This study introduces a novel methodology for updating sensitive material parameters of a piezoceramic thin-walled tube transducer using only a few characteristic quantities extracted from a measured impedance function of the transducer. The effectiveness of the proposed methodology is demonstrated through two numerical examples, including both computer simulation and lab experiment.