Deflection of MEMS Based Sandwiched Cantilever Beam for Piezoelectric Actuation: Analysis of Lead Zirconate Titanate Piezoceramic Material

TL;DR

This study analyzes how different lead zirconate titanate piezoceramic materials affect the deflection of MEMS sandwiched cantilever beams for piezoelectric actuation, using COMSOL simulations to identify optimal materials.

Contribution

It provides a comparative analysis of PZT materials' impact on beam deflection, highlighting material choice as a key factor in device efficiency.

Findings

Tip deflection varies between 37 and 83 nm for different PZT materials.

PZT-8 exhibits the lowest deflection, PZT-5H the highest.

Material choice significantly influences piezoelectric device performance.

Abstract

This paper investigates the deflection of micro- electro-mechanical system (MEMS) based sandwiched cantilever beam for piezoelectric actuation using eight of the popular lead zirconatetitanate (PZT)piezoceramic material. The simulation for the investigation was carried away in COMSOL Multiphysics software environment. For the investigation of a certain model, the lowest tip deflection is found to be 38.074 nm for PZT-8 and the highest tip deflection is found to be 82.965 nm for PZT-5H. A 2 mm thick flexible foam core is sandwiched between two 8 mm thick aluminum layers in this model of sandwiched cantilever beam, which is 100 mm long. The gadget is replaced with a foam core with a 10 mm long piezoelectric actuator that is located between x=55 mm and x=65 mm. Along the global x-axis, the beam is aligned. The beam changes substantially when the piezoceramic material is changed. The tip deflection of the cantilever beam varies between 37 and 83 nanometers for different lead zirconate titanate piezoceramic materials. PZT-8 has the lowest deflection of 37.074 nm, whereas PZT-7A has the second lowest deflection of 40.423 nm. The maximum tip deflection discovered is more than twice as high as the lowest tip deflection discovered. The deflection of a sandwich cantilever beam for piezoelectric actuation is clearly influenced by piezoceramic materials which can be used in increasing the efficiency of any mechanical device.