Piezoelectric module

The piezoelectric module of SDT

  • Provides efficient tools for the definition of piezoelectric material properties (existing database) and electrodes including combinations
  • Enables to compute static and dynamic responses to voltage/charge actuation and define voltage/charge sensors using full and reduced order models
  • Contains advanced visualization tools for easy pre and post-processing
  • Allows to create reduced order state-space models from the full models for use with the control toolbox in Matlab

accelerometer

Main functionalities

  • 3D elements for detailed modeling of piezoelectric systems such as actuators and sensors
  • Multi-layer plate elements allowing to model plate structures equiped with thin piezoelectric transducers including piezoecomposites such as Macro Fiber Composites (MFCs)
  • Simple handeling of electrical boundary conditions through the definition of electrodes. Combinations of voltage as well as charge can be applied and/or measured on the electrodes
  • Advanced visualisation tools (electric field, electrode areas, charge density on electrodes)
  • Static periodic homogenization of representative volume elements (RVE) for the modeling of piezocomposite transducers
  • Possibility to export the model in the (reduced order) state-space format to be used for active control or passive shunt applications.

static_plate

Main steps of analysis

SDT  supports  piezoelectric  constitutive  laws  for  all  3D  volume  elements  and  composite shells.  The main steps of an analysis are :

  • define/import mesh.
  • define piezoelectric material properties
  • define electrodes through  an  MPC  for  volumes  or  the element property for shells.
  • define electric boundary  conditions,  loading,  and  sensors
  • compute the response  using  full  order or reduced order models
  • visualize the response in more detail.

patch_IDE

Documentation