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ASSUMPTIONS

Your device should survive temperatures of -50C to +80C (heaters can be used to keep the device warm).
Your device should operate between 0C to +40C (once again, heaters can be used).
No net debris should be allowed to escape. Everything needs to be captured or attached to one static body or the other. If debris escaped, it would create space junk.
Provide the minimum volume and mass your device requires. The device should be smaller than a cylinder that is less than 15cm long, by 2cm in diameter, and weigh less than 1 kg.
Tell us how many Newtons of force your device can hold together (during launch) or push apart.
Try to estimate the reliability of your device. It should work 99.5% of the time or better.

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CONCEPT

The separating device will be a heater that will burn through the parachute line.
The heater is to be in the shape of a standard spiral
The separator is to be in the shape of a cylinder with dimensions of Ø20x150mm
The separator is to be simple in operation and easy to make
The body material of the separator is titanium alloy
The material from which the heater will be made is kanthal
The separator is to work by burning through the rope securing the parachute parachute

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PRINCIPLE OF OPERATION

The heater heats up to 1000 degrees Celsius in about 1 second, the heated wire of the heater melts the parachute line wrapped around the pin, breaks the line and disconnects the package from the parachute

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SIMULATION PARAMETERS FINITE ELEMENT METHOD�

SIMULATION RESULTS FINITE ELEMENT METHOD – ALLOWABLE STRESS DIAGRAM�

Material – TITAN ALLOY

FORCE 7000 N ~ 700kg

FIXED GEOMETRY

The solution will give us knowledge about the critical place where the damage will occur

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SAFETY FACTOR CHART�CHART OF THE MOST STRESSED PLACES

Safety factor - an engineering unitless number that tells how many times the permissible stress

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THANK YOU FOR YOUR ATTENTION