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Overview

This page explores the parameters defining the nature and behavior of collision objects in our impact analysis. The goals of this investigation are listed below.

• Gain a better understanding of the real life representation of the collision objects in order to accurately model their behavior in collision scenarios

• Verify the size, geometry and material of collision objects and ensure they meet ASC regulations

• Re-evaluate contact types and fixed supports used in the current simulation setup

• Propose new simulation setups that can model the behaviour of the chassis and collision objects more realistically

• Ensure models are sufficiently constrained and can be solved by running test cases in Ansys

Left To Do:

• double check the automatic contacts in the current model

• finish defining set up cases

• run in ansys

• compare to existing results (stresses, model behavior)

  • ideal result = lower stresses but still realistically modelled

1.0 ASC Regulations Regarding Collision Objects

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• See this page for details on the current Ansys Workbench Setup: MS14 Workbench Setup

  • “11. Add a fixed support to the back face of your impact object”

  • “12. Add acceleration to your model, in the direction away from the impact object. For every G of force you want to simulate, add 9.8m/s^2 to acceleration (i.e. for 5Gs, acceleration should be 49m/s^2).”

3.2 Front/ Side Bar Collisions Setup

3.3 Rollover (Wall) Collisions Setup

3.3 Top (Pucks) Collision Setup

4.0 Simulation Results

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• Show results based on setups defined in 3.0

• take note of any modifications / iterations required

4.1 Case 1 Results

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