Hello everyone,
I'm currently working on developing a finite element simulation model of a uniaxial piezoelectric accelerometer using ANSYS Workbench. The primary goal is to analyze the behavior of a piezoelectric material under dynamic excitation and to evaluate its performance as either an accelerometer or a force sensor.
To simulate the electromechanical behavior of a piezoelectric structure and plot its Frequency Response Function (FRF). This includes identifying the sensor's bandwidth and pinpointing the natural frequency (resonant peak), which in my case occurs around 5 kHz based on initial design parameters.
The simulation successfully shows the typical resonant peak behavior expected of a piezoelectric sensor. The plot clearly indicates the bandwidth and resonance region, which are key to understanding the performance limits of the sensor.
This analysis is crucial in determining how well the piezoelectric device responds to vibrational inputs and where it can be optimally deployed in real-world applications.
I'd love to hear feedback from the community regarding:
Looking forward to your insights!
I'm currently working on developing a finite element simulation model of a uniaxial piezoelectric accelerometer using ANSYS Workbench. The primary goal is to analyze the behavior of a piezoelectric material under dynamic excitation and to evaluate its performance as either an accelerometer or a force sensor.
Project Objective:
To simulate the electromechanical behavior of a piezoelectric structure and plot its Frequency Response Function (FRF). This includes identifying the sensor's bandwidth and pinpointing the natural frequency (resonant peak), which in my case occurs around 5 kHz based on initial design parameters.
Method:
- Created a uniaxial configuration of the sensor.
- Applied sinusoidal acceleration input over a range of frequencies (eg: starting from 10 Hz).
- Extracted voltage output as a function of excitation frequency.
- Post-processed the results to obtain the voltage vs frequency plot, representing the FRF.
Outcome:
The simulation successfully shows the typical resonant peak behavior expected of a piezoelectric sensor. The plot clearly indicates the bandwidth and resonance region, which are key to understanding the performance limits of the sensor.
This analysis is crucial in determining how well the piezoelectric device responds to vibrational inputs and where it can be optimally deployed in real-world applications.
I'd love to hear feedback from the community regarding:
- Best practices for meshing piezoelectric materials.
- Tips on accurately capturing damping in the simulation.
- Any validation methods others have used for experimental vs simulated FRF.
Looking forward to your insights!
