Frame Optimization

While we all have much love for "The Tank," we knew that we could save a good bit of weight on the frame through optimization. To accomplish this we turned to the COSMOS analysis software inside the SolidWorks suite. It took a couple of days to learn, but it wasn't long before Rusty was running multiple loading conditions on various frame configurations, cutting weight every time.

The two main loading scenarios he has been analyzing are the static 250lb roll bar load (per competition rules), and a composite load of his distributed weight and hitting a 0.5" bump on one front tire. We have made loading assumptions around this scenario as our "worst case".

The following are pictures showing the latest frame iteration, which saves 9lbs--approximately a 30% reduction in total weight! This leaves the frame at a predicted 22lbs. This was achieved primarily by experimenting with various combinations of tube size and wall thickness.

We just picked up the steel to make the new frame and fabrication will be under way shortly.