Presentation 3 Cont. - December 5, 2018
For this week's meeting, the team was able to present their designs and stress analysis to the rest of the groups. In our presentation, the team was able to exhibit all of the stress calculations done through Solidworks Simulation. The yield safety factor was calculated for the bracket, third rail sleeve, and the straight and decline/incline aluminum rails. For the third rail sleeve, two analysis were done: one where 12 lbs of force was pushing down on the inside of the sleeve to hold up the third rail, and 12 lbs acting on the side to check if it could cushion three bogeys when doing the switch turns. The safety factors were 18 and 16.3, respectively. The safety factor for the bracket was 6, and the yield safety factor for the rails were 3.1 and 1.6. The rails had a smaller deflection than what the previous calculations gave us of at most 0.02 inches vs 0.08 inches. This means that deflections in the aluminum were minimal and would sufficiently hold up the bogey. The team was a...