NOAH MAUCK
Design
The interlocking payload structure was modeled in SolidWorks and additively manufactured out of PLA. The payload was surrounded with insulation in order to insulate it from the sub-freezing temperatures at 100,000 feet.
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The temperature dependency on blood viscosity was modeled using published research and EES thermodynamic properties. The length and diameter of tubing was sized using principles of fluid mechanics.
Testing
The payload was structurally tested with a drop test and whip test. In the drop test, the fully loaded payload was dropped from 20 feet. This test was repeated three times with no damage. The whip test involved spinning and exerting directional changes on the payload, simulating maximum g's during flight.
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The payload was placed inside a cooler with 10 pounds of dry ice for the environmental test. Temperatures inside the cooler reached -52 degrees Celsius. This test confirmed the payload's heating system was operational.
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The payload was also placed inside a vacuum chamber to check for fluid leaks. The system was inside the vacuum chamber for 3 minutes at 4 torr.
Results
On July 29, 2023 EOSS Flight 345 reached an apogee 102,383 feet. The payload successfully collected data for 2 hours and 19 minutes. In total, 40,076 data points were collected. This means the payload successfully collected data for the entire duration of flight. Upon recovery, the device was still on, functioning, and recording data. The results from this flight are shown in the figure.