Silver Bang

https://youtu.be/1dCq6uEmdiE

https://github.com/csagnik2003/silver-bang.git

The actuator uses a lead screw mechanism and works on a DC motor powered by a 9v battery. The actuator is placed on the bulkheads of the electronics bay via four nuts and bolts. The avionics bay we created consists of an Arduino Uno and two barometric and accelerometer sensors which actively sense the altitude and the acceleration. The parachute or the payload can be deployed at the apogee or a user-determined altitude. The flow of the ejecting parachute works by Arduino sensing the altitude and the acceleration. We used an '&&' function to determine the apogee. The apogee is detected when the user input value of altitude is greater or equal to the current altitude and the accelerometer is detecting a free fall if any of the above parameters is not true then the actuator will not eject the payload or the parachute. The benefits of using an electromechanical system is that it is much more accurate and better than calculating black powder charge and causes less damage.

Coding languages:

Arduino IDE

Design and Simulation:

Fusion 360

Video for Project

spark.adobe.com

Youtube.com

Our project is inspired by the recovery mechanism of the Space Launch System (SLS) rocket. SLS is one of the most powerful rockets created by the National Aeronautics Space Administration (NASA) and it has been responsible for carrying the Orion spacecraft under NASA's Artemis program. We took inspiration from the recovery system of SLS, which primarily uses a parachute recovery system. As our recovery system was also based on parachute-based recovery mechanisms, we created a miniaturized, non-pyrotechnic, parachute-based rocket recovery system.

We are three-member team. The team is composed of a 9th grader who is an aspiring astrophysicist and is trying to launch his own rocket to space , a college-goer who is pursuing his bachelors degree in Mathematics and an Analytics working professional with interest in Astronomy. Having different age groups from different background brought varied approaches to the table.

First Step: Exploration and decision on challenge: We first took time to explore the challenge we wanted to undertake. Each of us came with the challenge of our liking with a rough approach on how to address the challenge. This was then followed by series of discussion on convincing ourselves which project to pursue.

We then looked at two main factors to pick the challenge for our hackathon 1) which project can be practically completed in two days 2) which project allowed us to use some of our current understandings but explore further.

We concluded on "Let it go!"

Second Step: Tasks and team work: We discussed what interested us as well as areas where two members at time could collaborate to do the following - design, simulation in Fusion 360 and Avionics coding in Arduino.

Third step: Engineering thinking application: We referenced the Systems Engineering Guide from Nasa to decompose the problem

Fourth Step: Requirements and Specs traceability: We made sure that all the requirements are specs are being met

Fifth step: Video Creation and upload to YouTube.

https://www.nasa.gov/sites/default/files/atoms/files/nasa_systems_engineering_handbook_0.pdf

Challenge Video: https://www.youtube.com/watch?v=7ke45XZns4o&list=PL37Yhb2zout05pUjr7OoRFpTNroq_wd9f&index=15

https://www.hq.nasa.gov/alsj/CSM12_Earth_Landing_Subsystem_pp93-98.pdf

https://spinoff.nasa.gov/Spinoff2020/ip_8.html

https://ntrs.nasa.gov/api/citations/20110016488/downloads/20110016488.pdf

https://llis.nasa.gov/lesson/11501

https://www.nasa.gov/exploration/systems/orion/index.html

https://www.nasa.gov/exploration/systems/sls/index.html

#Actuators, #engineering, #International, #electromechanical

This project has been submitted for consideration during the Judging process.