https://github.com/translunar/closed_loop

Example of a PID controller attached to a mass-spring-damper system
https://github.com/translunar/closed_loop

dynamics engineering phyics pid-controller simulation

Last synced: about 1 year ago
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Example of a PID controller attached to a mass-spring-damper system

• Host: GitHub
• URL: https://github.com/translunar/closed_loop
• Owner: translunar
• Created: 2024-02-23T07:31:38.000Z (over 2 years ago)
• Default Branch: master
• Last Pushed: 2024-02-27T01:39:59.000Z (over 2 years ago)
• Last Synced: 2025-01-31T09:28:59.504Z (over 1 year ago)
• Topics: dynamics, engineering, phyics, pid-controller, simulation
• Language: Python
• Homepage:
• Size: 36.1 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

          
# closed_loop

This demonstrates a closed loop, single-threaded mass-spring-damper with a

PID controller. I've also demonstrated some zero-mean Gaussian noise, and

plotting is carried out by a separate script. Models can run at different

rates, and the example includes two logging rate groups as well.

## Running the example

    source .venv/bin/activate

    pip install -r requirements.txt

    python world.py 10.0 5.0 && python plotter.py

Note that the mandatory arguments for `world.py` are:

* the simulation duration (in units of time)

* the desired position of the mass (PID controller setpoint)

The simulation is defined in `world.py` in `__main__`.

To run unit tests,

    pytest test/

## A note about typing

I decided against using mypy to check typing because it would be difficult

to finish this task in five hours with typing.

## Copyright

Copyright Juno Woods, Ph.D., Translunar LLC, 2024. All rights reserved.