The Hyper Group

https://drive.google.com/drive/folders/1neeKF0RW_WuEuHZ5dQUs5Xlzsz5kiYAW?usp=sharing

https://youtu.be/d-kc8dH8f6Y

CFSB is a mechanical battery capable of constant simultaneous charge and discharge with the use of Constant Force Springs. The charging process is powered by the Wind Turbine on the Venus Rover and two outputs are available for the Rover Mechanisms and an optional Samarium Cobalt electrical generator or any mechanism that requires a direct connection to the power source. The torque produced by the Wind Turbine is directly connected to the CFSB with a One-Way Bearing to prevent counter-rotation of the battery and the Wind Turbine. This allows the rover's driving mechanism and mechanical sensors to function even with a loss of wind flow on the turbine. All materials planned to be used on the battery are high temperature and corrosion-resistant and have already been used and tested by NASA itself. These include but are not limited to Titanium Alloys, Inconel Alloys, Elgiloy, Aluminum Alloys, and various grades of Stainless Steel.

The self-discharge rate would typically be inexistent when using the right materials for the spring to avoid permanent deformation at high temperatures. A partial failure in the form of permanent deformation of the spring would not be mission-ending. The battery will still provide and store energy but with lesser capacity and torque and still transfer torque from the turbine directly to the rover's mechanism.

The CFSB is a highly-scalable design and can be easily modified to fit the needs and specifications of the rover. If more force is required, constant force springs can be stacked together for a stronger torque but lesser capacity. Currently, a .25m diameter battery has a theoretical mass of around 48kg when using SS304 and a total volume of just 6 liters. When built right, it should survive extreme environments and vibrations from launches and atmospheric reentry. The battery doesn't have many moving parts and few possible points of failure. If Stainless Steel 304 is used for the battery construction, it should be able to survive a maximum temperature of at least 925°C. If the battery is placed inside the rover, no further enclosures or casings are required to protect the gears of the battery. No specific orientation is required for the battery to work nominally.

We hope that this design would last for the entire duration of the Venus Rover mission if ever selected and that it would be made and tested by NASA in real life. It is a relatively cheap, practical, and simple design that can provide the rover with power for longer durations of time.

The CFSB is designed in AutoCAD and Blender 3D by Ross and Miko. The Venus Rover was made from scratch in Blender 3D by Miko using references from the Venus Rover Challenge in HeroX. The cover photo on this submission was designed in Photoshop and Paint Tool Sai 2 by Ross.

Open data from the past Venus Rover Challenge on the HeroX website provided by Jonathan Sauder has been used as the basis of the solution for this challenge. Information about the rover's 2-meter wide turbine, maximum drive speed, and peak shaft torque found in the open data has led to the formulation of the design presented in this submission. Venus's environmental data were based on the finding presented on NASA's website.

This is Miko and I's first Space Apps experience and we've enjoyed every part of the process from designing to typing this submission. Although this is our first Space Apps Challenge, we have worked with NASA before and have won two prized worldwide competitions by the NASA Tournament Lab on long-duration deep space missions related to environmental systems. I am the designer and inventor of the parts and systems required by the challenges and Miko would be the 3D animator for all the animations done for the submissions and presentations.

Certain setbacks and challenges in the form of 3D Modelling errors and animations have taught us new insights on how to tackle things differently and faster. Research and proper communication have helped us solve these problems that made it possible for this submission to be submitted on time.

Ross - "I would like to thank my mother who taught me how to use AutoCAD and most especially the incredible love of my life for being such an inspiration to me. I wouldn't have done any of these if it weren't for him and we wouldn't have any jaw-dropping 3D animations if he hadn't worked so hard for them. It is also noteworthy to say that it is just simply amazing that a self-taught game developer and college student software developer like him with no experience in complex mechanical concepts has quickly understood how these systems work and helped a mere college student physicist win competitions from NASA. This challenge submission would never be possible without him. Thank you, Miko."

Miko - "I would like to thank my future husband Ross for never failing to give me inspiration and motivation to improve myself, I would also like to thank him for always inviting me to join these challenges and motivating me to take on projects outside of my comfort zone. Thank you, Ross."

Data and Resources:

https://www.herox.com/VenusRover/forum/thread/4764

https://www.herox.com/VenusRover/guidelines

https://solarsystem.nasa.gov/news/1519/venus-resources/?page=0&per_page=40&order=created_at+desc&search=&tags=Venus&category=324

https://www.thyssenkrupp-materials.co.uk/stainless-steel-304-14301.html

https://www.mcmaster.com/one-way-bearings/

https://www.youtube.com/watch?v=KPPkg4Jn4nU (No Copyright Song by Keys of Moon - https://soundcloud.com/keysofmoon)

https://commons.wikimedia.org/wiki/File:Venus_globe_-_transparent_background.png

Tools Used:

AutoCAD 2023

Blender 3D Version 3.2.0

3Ds MAX 2023

Photoshop 2023

Paint Tool Sai 2

#venus #rover #battery #mechanical #AREE #springs #spring