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This guide will explain how the MS14 simulations should be set up to simulate the regulation impact scenarios.

There are 13 scenarios that need to be simulated :to pass the ASC regulations. FEA simulations will not give completely reliable and accurate results, so it is crucial that the results are checked and reviewed with hand calculations.

  1. Front impact (bar)
  2. Rear impact (bar)
  3. Side impact (bar)
  4. A-pillar impact (wall)
  5. B-pillar impact (wall)
  6. C-pillar impact (wall)
  7. Side 30 degree impact (wall)
  8. Side 60 degree impact (wall)
  9. Front 30 degree impact (wall)
  10. Front 60 degree impact (wall)
  11. Top 30 degree impact (wall)
  12. Top 60 degree impact (wall)
  13. Top impact (wall)

Before you start ANSYS, you should have these CAD models ready

  1. Steel chassis
  2. Composite catamaran
  3. Impact objects (All 13 impact objects should be combined into one file for convenience)

ANSYS

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  1. Here, all of the impact objects are combined in one model. In the simulations, we will suppress the unneeded objects instead of having a separate model for each object.
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  1. In this picture we can see that the front portion of the chassis has been connected to the front panel of the catamaran
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  1. I added a contact region between the bottom edge of the chassis to the edge of the catamaran
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  1. Your workbench should now have 2 mechanical models, one with the chassis and the catamaran, the other with the impact objects
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  2. You will have all of the impact objects in your model, just suppress the impact objects that you do not need

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