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Examples

This page presents examples of techniques or modeling approaches that can be used to simulate various real-world scenarios. Each example may contain links to download simulation movie files, excerpts from Technical Newsletters, detailed tutorials or even case files to try out in your own HVE or HVE-2D software.

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EDSMAC4 Barrier Crash Simulation EDSMAC4 Median Barrier Collision Simulation
This example, discussed in the Spring 2003 Technical Newsletter, illustrates the use of EDSMAC4 for simulating barrier collisions. Although there are several approaches, this example illustrates the best approach - in terms of both the mechanics of the collision and the visualization. For more details, download the Technical Session from the Spring 2003 Technical Newsletter.

In the sample crash, two vehicles (a 1999 Volkswagen Jetta and a 2002 Chevrolet S-10 Extended Cab Pickup) sideswipe each other on a freeway, sending the Jetta spinning into the median barrier. After rebounding back into the traffic lanes, the Jetta is struck by a third vehicle, a 2001 Ford Expedition. You can download and view a simulation movie file (MedBarCrashSim.mov) of this example in Quicktime format. (Download time for this 5.3 MB movie is about 3-25 minutes depending upon your connection speed.)

If you would like to explore this example further, we have made the casefile available so you can work with it in your HVE or HVE-2D software. Simply download the MedianBarrierCrashSimulation.hve casefile, unzip it into your /supportFiles/case folder, and then open the casefile within your HVE or HVE-2D software. (Download time for this 12 MB zipped file is about 10 - 60 minutes depending upon your connection speed.)

Motorcycle Collision Visualization Motorcycle Collision Visualization
As we made quite clear in the June 2000 Technical Newsletter (see Newton on Motorcycles), it is unwise to attempt a mathematical reconstruction of the collision phase of a vehicle vs. motorcycle collision - if your goal is to calculate the speed of the motorcycle. However, there is much that can be done in motorcycle crash reconstruction, and this example shows you how to use HVE to perform such a reconstruction. Although there are several approaches, this example illustrates the best approach - in terms of both the mechanics of the collision and the visualization. For more details, download the Technical Session from the June 2001 Technical Newsletter.

In the sample crash, a Yamaha motorcycle and a Freightliner FLD 120 collide at an intersection. The simulation is a simple, straight-forward application of EDSMAC4 to simulate the pre-collision phase of the motorcycle collision. Several additional things have been done to extend and/or enhance the simulation. For example, EDGEN was used to simulate the post-impact phase. EDGEN was also be used to illustrate various trajectories for the motorcycle driver after impact.

You can download and view a simulation movie file (mtrcyclecrash.mov) of this example in Quicktime format. (Download time for this 3 MB movie is about 1-12 minutes depending upon your connection speed.)

If you would like to explore this example further, we have made the casefile available so you can work with it in your HVE software. Simply download the MotorcycleCollision.hve casefile, unzip it into your /supportFiles/case folder, and then open the casefile within your HVE software. (Download time for this 0.2 MB zipped file is about 1 - 2 minutes depending upon your connection speed.)


Instructions for Viewing Movies
Movies are available in the QuickTime (MOV) file format. If your browser has QuickTime, all you need to do is click on one of the icons below. If your browser is not yet equipped with QuickTime, click here:

Apple QuickTime QuickTime Plugin for MOV files


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