Study on the Mechanical Characteristics of Multilayer Piezoelectric Stack Actuator

Kai Zheng; Yi Yong Yang

doi:10.4028/www.scientific.net/AMR.308-310.674

Paper Titles

Numerical Simulation of Effect on Billet Casting Q235 under Inner-Out Cooler
p.651

Self-Assembly of Flower-Like CeO₂ Microspheres via a Template-Free Synthetic Approach and its Use as Support in Enhanced CO and Benzene Oxidation Activity
p.656

Attitude Resolution Algorithm of Gyro-Free Inertial Navigation System
p.662

Magic Cube Approach Application on Crashworthiness Design of Front Rail for Weight Reduction
p.668

Study on the Mechanical Characteristics of Multilayer Piezoelectric Stack Actuator
p.674

Research for Predicting the Underwater Acoustic Performance of Sandwich Structural Composite Based on Support Vector Machine
p.678

Effect of the Grain Size on Magnetic Properties of Nanocrystalline CoFe₂O₄ Ferrite
p.685

Synthesis of Chiral Amphiphilic Graft Copolymer PBTQMO-g-MPEO
p.689

Study on Transverse Cooling Uniformity in Controlled Cooling Process of Copper Plate
p.692

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 308-310Study on the Mechanical Characteristics of...

Study on the Mechanical Characteristics of Multilayer Piezoelectric Stack Actuator

Abstract:

This paper presents results on mechanical behavior of multilayer piezoelectric stack actuators for use in active member under combined electro-mechanical Loadings. The objective of this study is to investigate the behavior of piezoelectric materials and to determine the properties necessary for design of such actuator systems. Two types of experiments are performed: influences of the preload on characteristics of the stack and dynamic test. The measurements indicate strong dependence of the actuator piezoelectric properties on the electro-mechanical loading conditions. The displacement output is initially enhanced with an increase of the mechanical preload, and the maximum value is obtained at the preload of about 0.4 KN. But much higher preload will cause the decrease of the displacement output. Within low frequency band of about 400 Hz, the displacement magnitude of the stack is nearly constant, and the phase lag increases with the increase of the driving frequency at the applied sine sweep voltage with the amplitude of 150V.