Related Experiment Video
Updated: Mar 11, 2026

Investigating the Potential of Singly Curved Thin Piezoelectric Transducers for Energy Harvesting and Structural Health Monitoring
Published on: November 14, 2025
Working Principle Simulations of a Dynamic ResonantWall Shear Stress Sensor Concept
Xu Zhang1, Jonathan W Naughton2, William R Lindberg3
1Mechanical Department, University of Wyoming, USA; Laboratory for Shock Wave and Detonation. xuatwyoming@hotmail.com.
Abstract:
This paper discusses a novel dynamic resonant wall shear stress sensor concept based on an oscillating sensor operating near resonance. The interaction between the oscillating sensor surface and the fluid above it is modelled using the unsteady laminar boundary layer equations. The numerical experiment shows that the effect of the oscillating shear stress is well correlated by the Hummer number, the ratio of the steady shear force caused by the outside flow to the oscillating viscous force created by the sensor motion. The oscillating shear stress predicted by the fluid model is used in a mechanical model of the sensor to predict the sensor's dynamic motion. Static calibration curves for amplitude and frequency influences are predicted. These results agree with experimental results on some extent, and shows some expectation for further development of the dynamic resonant sensor concept.
Related Concept Videos
Thin-Walled Hollow Shafts
Elastic Strain Energy for Shearing Stresses
Shearing Stresses in a Beam: Problem Solving
Design Example: Strain Gauge Bridge or Wheatstone Bridge
Relation Between the Distributed Load and Shear
Unsymmetric Loading of Thin-Walled Members
The concept of the shear center is crucial in countering the...

