Source code for gemseo_umdo.use_cases.beam_model.core.variables

# Copyright 2021 IRT Saint Exupéry, https://www.irt-saintexupery.com
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"""Some variables of the GEMSEO-free version of the beam use case."""
from __future__ import annotations

from typing import NamedTuple


[docs]class Variable(NamedTuple): """A variable of the beam use case.""" name: str """The name of the variable.""" value: float | None = None """The default value of the variable."""
b = Variable("b", 500.0) """The width of the beam.""" h = Variable("h", 800.0) """The height of the beam.""" t = Variable("t", 2.5) """The thickness of the beam.""" L = Variable("L", 5000.0) """The length of the beam.""" E = Variable("E", 73500.0) """The Young's modulus of the material.""" F = Variable("F", -200000.0) """The load applied to a point at the tip of the beam.""" alpha = Variable("alpha", 0.0) r"""The angle between $-\vec{e}_z$ and $\vec{F}$ in $xy$-plane.""" beta = Variable("beta", 0.0) r"""The angle between $-\vec{e}_z$ and $\vec{F}$ in $yz$-plane.""" dy = Variable("dy", 0.0) r"""The $y$-coordinate of the point where the force is applied.""" dz = Variable("dz", 0.0) r"""The $z$-coordinate of the point where the force is applied.""" rho = Variable("rho", 2.8e-6) """The density of the material.""" nu = Variable("nu", 0.33) """The Poisson's ratio.""" sigma_all = Variable("sigma_all", 300.0) """A constant used by the stress constraints."""