Mechanical and Computational Analysis of the Taylor Spatial Frame

Mechanical & Computational Analysis

 

of The

Taylor Spatial Frame

 

 

Ahmad R. Zamani

fecad.com


  • An adaptation of parallel platforms (hexapod) for an orthopaedic frame (2002)

  • Manufacturer offers a web-based system for users

  • Instability reported despite all components remaining intact, which required avalysis of the configurations of the frame

Kinematics of (TSF as) a Hexapod

  • Can move and mobilise in all 6 degrees of freedom

  • Its Inverse Kinematics (IK) is simple while Forward Kinematics (FK) is challenging

  • Introduced in the 1950's and still being studied

  • Has many applications most widely for flight simulators

Solutions

TSF Rings

  • The name "ring fixator" is given to these type of orthopaedic devices
  • Their behaviour is important as the support of the pins and wires
  • Their mechanics is not well studied especially compared to the wires
  • In their simple form, the rings in orthopaedic fixators can be considered as thick curved castellated beams

Please check:

http://fecad.com/tsf/ring

Realistic multilevel and multiscale simulations

  • Challenging 3D geometries
  • Different levels of abstration
  • Static / dynamic / steady-state / eigen value problems
  • Material behaviour, plasticity, failure both ductile and brittle
  • Scripting and subroutines e.g. UMAT for material damage / failure

More on computational simulations

Thanks for your attention