System TEsting

In order to ensure the 3D structures inside the suit can withstand the vacuum pressure, FEA analysis was performed. To account for a factor of safety of two, a 40 mmHg pressure was applied to the structures. The largest displacement was a magnitude of 0.003 mm with no failure. Therefore, the 3D structure of the suit will be able to support the vacuum pressure applied during usage.

FEA Analysis of Suit Calf Piece

The modified vacuum system has shown that it is capable of creating a pressure differential of at least 20 mmHg at the max speed setting. Unfortunately at the lower speed setting the modified vacuum is no longer able to maintain 20 mmHg. This is most likely because the vacuum batteries are now powering the Arduino system and drawing power away from the motor.