Characterize Dynamic Response of Cantilevers for Measuring Properties of Viscous Fluids

Document Type

Conference Proceeding

Publication Date

11-9-2012

Find this in a Library

Catalog Record

Abstract

Miniaturized devices are essential to precisely determine the rheological properties of viscous fluid when the available sample volume is inadequate. In this paper, we have attempted to apply the finite element analysis (FEA) method to characterize the dynamic response of a mini cantilever beam to measure the rheological properties of viscous fluid. First, the dynamic response of a mini cantilever beam, partially submerged in viscous fluid, is experimentally measured, and then compared with corresponding FEA solutions. Once the FEA model is validated, further numerical analysis is conducted to investigate how the modal response would change with changing density and viscosity associated with different viscous fluids. The numerical simulations are also repeated with changing the dip-length to investigate the sensitivity analysis. It seems from numerical results that the resonant frequency, Q-factor, time constant and depth of penetration of acoustic wave are dominantly influenced by viscosity of submerged liquid. Results obtained from this study can be used to design the optimized MEMS based test set up for measuring the rheological properties of viscous fluid.

Copyright © 2012 by ASME

Comments

Paper presented at the ASME 2012 International Mechanical Engineering Congress and Exposition, Houston, Texas, USA, November 9–15, 2012

DOI

10.1115/IMECE2012-85096

Catalog Record

Share

COinS