Stress enhancement of a trapezoidal bridge piezoelectric transducer in high force environment
Document Type
Article
Publication Date
4-1-2021
Abstract
The substrates in Trapezoidal Bridge piezoelectric transducer will shield most of the stress, causing unutilised low stress regions of PZT and lower power output. Thus, this paper presents an improved optimisation scheme by optimising the overall stress distribution of the PZT with the considerations of suitable loading forces and optimised dimensions of amplifier structure. The developed Finite Element Model had been validated experimentally. It is found that the thickness of end cap and substrates are the important parameters in optimising the PZT transducer. The overall PZT's stress level has been enhanced with a much closer stress distribution to its threshold.
Keywords
Amplifier structure, High force environment, Piezoelectric transducer, Stress enhancement, Trapezoidal bridge structure
Divisions
mechanical
Funders
University of Malaya Research University Grant (RU Faculty) (GPF081A-2018)
Publication Title
Ferroelectrics
Volume
573
Issue
1
Publisher
Taylor & Francis Ltd
Publisher Location
2-4 PARK SQUARE, MILTON PARK, ABINGDON OR14 4RN, OXON, ENGLAND