Tutorials

Each tutorial is a complete, working example that you can download and run. The scripts are tested automatically against the current version of PyFlange, so the code on these pages always works.

Tutorial	You will learn to	Needs
L-flange, deterministic	Build an L-flange segment, check the validity of the model, plot the bolt force and moment curves, compute the fatigue damage.	Python
T-flange, deterministic	The same for a T-flange, and the differences with L-flanges.	Python
Design gap angles and ED2	Check the four design gap angles of IEC 61400-6 and compare the AMD1 and ED2 models.	Python
Monte Carlo from the command line	Run a probabilistic analysis of a JSON case, inspect the statistics and single realizations.	Command line
Monte Carlo in Python	Build a custom Monte Carlo simulation with the random samplers of pyflange.stats.	Python
Writing case files from Python	Create case variants, run batches and collect the results in Excel.	Python

If you have never used Python, start with Getting started.

Conventions used in the tutorials

• All values are in SI units (m, N, Pa, rad). The scripts define mm, kN, MPa and deg to make the input readable: 150*mm is 0.150 m.
• The example flange is an L-flange of an 8 m monopile or tower with 156 M80 bolts. The values are realistic but do not belong to a real project.
• The Markov matrices are invented for the examples. In a real assessment, they come from the load calculation of the turbine.
• References such as ref. [2], eq. G.36 point to the documents on the References page.

Plots

Some tutorials draw plots with matplotlib, which is not installed together with PyFlange. Install it with py -m pip install matplotlib. The scripts work without it, they only skip the plots.