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Finite Element Modeling (FEM)

This section describes how to perform Finite Element Method (FEM) analysis of our PneuNet actuator using the Abaqus software suite. 

Overview of model components

  • 2 materials:(because wo notice at structure,so material can be imprecise)
    • frame:   polyflex            density of 1200Kg/m³,a Young’s Modulus of 0.1 GPa and a Poisson’s ratio of 0.38
    • airbag:  PA+PE               density of 1200Kg/m³,a Young’s Modulus of 1 GPa and a Poisson’s ratio of 0.45
  • 2 sections:
    • frame(uniform solid), assigned to the frame
    • airbag (uniform shell), assigned to airbag

Overview of FEM steps

  1. Import parts
  2. Assign material properties to the parts (create materials, assign materials to sections, assign sections to parts)
  3. Assemble parts
  4. Create step
  5. Create a universal contact
  6. Create set and surface
  7. Apply loads and set boundary conditions
  8. Mesh part
  9. Create mesh and run job

Abaqus units

When the lang unit is 'mm' ,the other unit is detemined