Space Debris Hazard Mitigation Operations


Authors : Aniruddha Chowdhury

Volume/Issue : Volume 8 - 2023, Issue 4 - April

Google Scholar : https://bit.ly/3TmGbDi

Scribd : https://bit.ly/3ABWPq0

DOI : https://doi.org/10.5281/zenodo.7878803

Space debris in Earth's orbit poses a significant danger to satellites, humans in space, and future space exploration activities. In particular, the increasing number of unidentifiable objects, smaller than 10 cm, presents a serious hazard. Various technologies have been studied to remove this Space debris. This paper discusses the technique of removal of Space debris from Earth's orbit and bringing it back to Earth safely. A 2-stage rocket with a unique method of propulsion system will be sent into space where the 2nd stage will act as an orbiter comprised of a Robotic arm covered by a durable Metallic Micro-lattice net. The mechanism will be used to capture the space debris. This system will include multiple cameras and sensors for detecting the debris. Live tracking and identification will be supported by AI and ML. Also, an active hydraulic system filled with MRF will be attached between the sections of the robotic arm. The active hydraulic system will help/protect the mechanism to resist the impact force. The fairing will be permanently attached to the 2nd stage just like doors and windows are attached to the frame which will be reused to protect the system as well as the debris during re-entry. The hot side of the thermoelectric pad will be in contact with the inner surface which will act as a heat sink. The other/cold side will be directly exposed to the mechanism and debris. As a result, it will create a cold ambient temperature inside the fairing keeping the payload safe and cool from the re-entry heat. Using a modified propulsion system, we will achieve this mechanism which will also produce electricity as well as act as an ignition system for the fuel. When the whole system will be in re-entry phase, thrust vectors fitted at the body of the 2nd stage carrying the payload will come in use. It will rotate the system by 180 degrees. Further the thrusters will turn on and will act as a reverse thruster. This will slow down the freely falling system. Moreover, parachutes will also increase the air drag which will further slowdown the speed while returning and the hydraulic legs fitted at the bottom of the mechanism will result in minimum impact with the surface.

Keywords : Space Debris, Robotic Arm, Metallic MicroLattice Net, Thermoelectric Pad, Modified Propulsion System.

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