Finite element analysis of the piezoelectric stacked-HYBATS transducer

Laura Tolliver, Tian-Bing Xu, Xiaoning Jiang
2013 Smart materials and structures (Print)  
Finite element modeling (FEM) of a piezoelectric multilayer-stacked hybrid actuation/transduction system (stacked-HYBATS) is investigated in this paper using ANSYS software. This transducer consists of two positive strain components operating in d 33 mode and one negative strain component operating in d 31 mode to generate large displacements. FEM results are compared with experimental and analytical results to provide insight into the actuation mechanisms, verify the device's three
more » ... components, and estimate its blocking force. FEM calculations found the effective piezoelectric coefficient to be exceptional, about 3.11 × 10 6 pm V −1 at resonance. Stacked-HYBATS was quantitatively compared to commercially available flextensional actuators using finite element analysis. It was found that under the same electric field the yielded displacement of a stacked-HYBATS is about 200% and 15% larger than that of a same-sized d 31 and d 33 flextensional actuator, respectively. These findings suggest that stacked-HYBATS is promising for precision positioning, vibration control, and acoustic applications.
doi:10.1088/0964-1726/22/3/035015 fatcat:vj5wrkyn4bex5onqv3dwk6asaa