Radiation, low pressure, and lack of Oxygen are all dangers that Humans need to adapt to on Mars. The Martian suits would allow humans to have a portable protection unit and survive once they land on Mars and begin colony generation.
Would we have only one colony on Mars or several different colonies? Would each colony have one building or several buildings? How big can the colony be? What facilities will the colony have? These are all questions that need to be answered to colonize Mars.
Having a system that would allow humans to move quickly and easily between different buildings inside the colony or between different colonies is integral. The ability to move easily on Mars would make it easier for Humans on Mars to not only expand on Mars, but also explore it.
Most technologies we use for space exploration are fueled by electricity. That is why it is important to design a system that can not only generate electricity on Mars, but also store it.
The structural team developed the chamber and doors of the airlock ensuring that the design can withstand the pressure differential with a safety factor of 4. The door utilized a planetary gear system to ensure a strong lock is achieved. The seal, on the other hand, consisted of a spring-epoxy combination to have maximum sealing. The chamber was designed out of Aluminum 7075 T6 and had a singularity point mechanism that allowed it to collapse to 15% of its original volume.
The air circulation team designed a system to allow the airlock to depressurize from 101.3 kPa to 0.6 kPA at a controlled rate such that astronauts are not harmed. By utilizing a vacuum diaphragm pump and valves, the airlock can be depressurized in almost an hour, and pressurize in half that time.
The electrical team provided designs for lighting systems within the airlock and displaying sensor readings for astronauts. By utilizing solid state light bulbs, and a combination of readers, the astronauts can use the airlock safely and ensure that it is functioning as it should.
The environment team had to design several systems that would protect astronauts and the airlock from the harsh Martian environment. A dust protection system was designed that relied on using a small pressure differential to prevent dust from entering the airlock when the door is opened. In addition, a radiation shielding and insulation system was designed that relied on Polyethylene, Mylar, Dacron and Kevlar. The Environment team also used thermocouples, geiger counters and barometers to monitor the temperature, radiation and pressure inside the airlock, respectively.