Metadata-Version: 2.4
Name: openairbearing
Version: 0.1.3
Summary: A Python package for externally pressurized air bearing analysis.
Author-email: Mikael Miettinen <mikael.miettinen@iki.fi>
License: MIT License
        
        Copyright (c) 2025 Mikael Miettinen
        
        Permission is hereby granted, free of charge, to any person obtaining a copy
        of this software and associated documentation files (the "Software"), to deal
        in the Software without restriction, including without limitation the rights
        to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
        copies of the Software, and to permit persons to whom the Software is
        furnished to do so, subject to the following conditions:
        
        The above copyright notice and this permission notice shall be included in all
        copies or substantial portions of the Software.
        
        THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
        IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
        FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
        AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
        LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
        OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
        SOFTWARE.
        
Project-URL: Homepage, https://github.com/Aalto-Arotor/openAirBearing
Project-URL: Online demo, https://www.openairbearing.com
Classifier: Programming Language :: Python :: 3
Classifier: License :: OSI Approved :: MIT License
Classifier: Operating System :: OS Independent
Requires-Python: >=3.10
Description-Content-Type: text/markdown
License-File: LICENSE
Requires-Dist: dash<3.0.0,>=2.18.2
Requires-Dist: numpy<3.0.0,>=2.2.3
Requires-Dist: plotly<7.0.0,>=6.0.0
Requires-Dist: scipy<2.0.0,>=1.7.0
Dynamic: license-file

# OpenAirBearing: Open-Source porous gas bearing analysis

[![Unit tests](https://github.com/Aalto-Arotor/openAirBearing/actions/workflows/unittests.yml/badge.svg)](https://github.com/Aalto-Arotor/openAirBearing/actions/workflows/unittests.yml)
[![Test coverage](https://coveralls.io/repos/github/Aalto-Arotor/openAirBearing/badge.svg?branch=main)](https://coveralls.io/github/Aalto-Arotor/openAirBearing?branch=main)
[![Code style: black](https://img.shields.io/badge/code%20style-black-000000.svg)](https://github.com/psf/black)
[![MIT license](https://img.shields.io/badge/License-MIT-blue.svg)](https://github.com/Aalto-Arotor/openairbearing/blob/main/LICENSE)

## Introduciton
OpenAirbearing includes a backed to model porous bearing performance and a browser GUI to display the results.
Software can be used online at https://www.openairbearing.com in a limited capability, and in full capability when used locally.

Supported features include:
* Circular thrust bearings
* Annular thrust bearings and seals
* Infinitely long linear bearings and seals
* Rectangular bearings

## Mathematical modeling
Analytical and numerical solutions of the Reynolds equation in one dimension fort most common porous gas bearing and seal geometries.
Analytical solutions assume ideal geometry, numerical (finite difference method) solutions consider uneven gap height, uneven permeability, and slip at porous-gap interface.
Implements models from textbooks [1,2] and research of Miettinen et al. [3,4].

## Contact
Main developer is Mikael Miettinen from Arotor lab at Aalto University Finland.

https://www.aalto.fi/en/department-of-energy-and-mechanical-engineering/aalto-arotor-lab

For any questions regarding the software please contact mikael.miettinen@aalto.fi

### References
[1] V. N. Constantinescu, Gas Lubrication, American Society of Mechanical Engineers, 1969. URL: https://archive.org/details/gaslubrication0000cons/

[2] F. Al-Bender, Air Bearings - Theory, Design and Applications, John Wiley &Sons, 2021. doi: https://doi.org/10.1002/9781118926444

[3] M. Miettinen, V. Vainio, R. Theska, R. Viitala, On the static performance of aerostatic elements, Precision Engineering 89 (2024) 1–10. doi:  https://doi.org/10.1016/j.precisioneng.2024.05.017.

[4] M. Miettinen, V. Vainio, R. Viitala, Aerostatic porous annular thrust bearings as seals, Tribology International 200 (2024) 110073. doi: https://doi.org/10.1016/j.triboint.2024.110073.
