How to compute forces in global reference frame?

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I have a model of the golf swing in simulink that outputs the forces in a local reference frame (relative to the follower block). I would like to find the forces relative to a global reference frame. What is the easiest way to do this throughout the model? Transform sensor?

Answers (1)

Sulaymon Eshkabilov
Sulaymon Eshkabilov on 28 Jan 2024
Presuming that you are also using some blocks from SimScape toolbox in the Simulink environment, here are some points to consider:
! Use a Simulink block called the "Coordinate Transformation" block.
Some generalized outline of the whole model building process:
  1. Define Coordinate Systems: Define the local and global reference frames. Use blocks "Local Coordinate System" and "Global Coordinate System" blocks of Simscape Foundation library.
  2. Coordinate Transformation Block: Use the "Coordinate Transformation" block to perform the transformation from the local frame to the global one.
  3. Use Sensor Blocks ("Transform Sensor" from Simscape Multibody): Force sensors in the local reference frame.
  4. Connect all blocks ...
  5. Simulate the built model
  6. Have fun :)
Don't foget converters: between Simulink and Simscape signals.


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