This package provides the Mooring and Foundations design module for the DTOcean tools. It can design the required station keeping for array of fixed or floating wave or tidal ocean energy converters (constrained by the environment and device design), and calculate the cost. It optimises the design for minimum cost given a specified safety factor.
See dtocean-app or dtocean-core to use this package within the DTOcean ecosystem.
* For python 2.7 only.
Installation and development of dtocean-moorings uses the Anaconda Distribution (Python 2.7)
To install:
$ conda install -c dataonlygreater dtocean-moorings
Conda can be used to install dependencies into a dedicated environment from the source code root directory:
$ conda create -n _dtocean_moor python=2.7 pip
Activate the environment, then copy the .condrc file to store installation
channels:
$ conda activate _dtocean_moor
$ copy .condarc %CONDA_PREFIX%
OR, if you're using Powershell:
$ conda activate _dtocean_moor
$ copy .condarc $env:CONDA_PREFIX
Install polite into the environment. For example, if installing it from source:
$ cd \\path\\to\\polite
$ conda install --file requirements-conda-dev.txt
$ pip install -e .
Finally, install dtocean-moorings and its dependencies using conda and pip:
$ cd \\path\\to\\dtocean-moorings
$ conda install --file requirements-conda-dev.txt
$ pip install -e .
To deactivate the conda environment:
$ conda deactivate
A test suite is provided with the source code that uses pytest.
If not already active, activate the conda environment set up in the Source Code section:
$ conda activate _dtocean_moor
Install packages required for testing to the environment (one time only):
$ conda install -y mock pytest pytest-cov=2.5.1 pytest-mock
Run the tests:
$ pytest tests
To uninstall the conda package:
$ conda remove dtocean-moorings
To uninstall the source code and its conda environment:
$ conda remove --name _dtocean_moor --all
Example scripts are available in the "examples" folder of the source code.
$ cd examples
$ python fairhead.py
The keys of the compdict argument to the Variables class have the following
meanings:
- item1: Mooring or foundation system
- item2: Name
- item3: Subname
- item4: [Material, Grade, Colour]
- item5: Strength and mechanical properties. For piles [yield stress, Young's modulus]. For ropes [minimum break load, [load, axial stiffness]]. For cables [minimum break load, minimum bend radius]. All other components: [minimum break load, axial stiffness]
- item6: Size. For piles/suction caissons [diameter, thickness]. For anchors
[width, depth, height, connecting size]. For chains, forerunner
assemblies, shackles and swivels [diameter, connecting length]. For ropes and cables [outer diameter] - item7: Mass. For piles/suction caissons, chains, ropes, cables and forerunner assemblies [dry mass per unit length, wet mass per unit length]. For anchors, shackles and swivels [dry unit mass, wet unit mass]
- item8: Environmental impact
- item9: Anchor coefficients
- item10: Failure rates
- item11: Cost
Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.
See this blog post for information regarding development of the DTOcean ecosystem.
Please make sure to update tests as appropriate.
This package was initially created as part of the EU DTOcean project by:
- Sam Weller at the University of Exeter
- Jon Hardwick at the University of Exeter
- Mathew Topper at TECNALIA
It is now maintained by Mathew Topper at Data Only Greater.