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displacement.py
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displacement.py
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from __future__ import absolute_import
from __future__ import division
from __future__ import print_function
# Author(s): Andrew Liew (github.com/andrewliew)
__all__ = [
'GeneralDisplacement',
'FixedDisplacement',
'PinnedDisplacement',
'FixedDisplacementXX',
'FixedDisplacementYY',
'FixedDisplacementZZ',
'RollerDisplacementX',
'RollerDisplacementY',
'RollerDisplacementZ',
'RollerDisplacementXY',
'RollerDisplacementYZ',
'RollerDisplacementXZ'
]
class GeneralDisplacement(object):
"""Initialises the base GeneralDisplacement object.
Parameters
----------
name : str
Name of the Displacement object.
nodes : str, list
Node set string or nodes list the displacement is applied to.
x : float
Value of x translation.
y : float
Value of y translation.
z : float
Value of z translation.
xx : float
Value of xx rotation.
yy : float
Value of yy rotation.
zz : float
Value of zz rotation.
axes : str
'local' or 'global' co-ordinate axes.
Attributes
----------
name : str
Name of the Displacement object.
nodes : str
Node set string or nodes list the displacement is applied to.
components : dict
Values of x, y, z, xx, yy, zz degrees-of-freedom.
axes : str
'local' or 'global' coordinate axes.
"""
def __init__(self, name, nodes, x=None, y=None, z=None, xx=None, yy=None, zz=None, axes='global'):
self.__name__ = 'GeneralDisplacement'
self.name = name
self.nodes = nodes
self.components = {'x': x, 'y': y, 'z': z, 'xx': xx, 'yy': yy, 'zz': zz}
self.axes = axes
def __str__(self):
print('\n')
print('compas_fea {0} object'.format(self.__name__))
print('-' * (len(self.__name__) + 18))
for attr in ['name', 'nodes', 'components', 'axes']:
print('{0:<10} : {1}'.format(attr, getattr(self, attr)))
return ''
def __repr__(self):
return '{0}({1})'.format(self.__name__, self.name)
class FixedDisplacement(GeneralDisplacement):
"""A fixed nodal displacement boundary condition.
Parameters
----------
name : str
Name of the FixedDisplacement object.
nodes : str, list
Node set string or nodes list the displacement is applied to.
"""
def __init__(self, name, nodes, axes='global'):
GeneralDisplacement.__init__(self, name=name, nodes=nodes, axes=axes)
self.__name__ = 'FixedDisplacement'
self.components = {'x': 0, 'y': 0, 'z': 0, 'xx': 0, 'yy': 0, 'zz': 0}
class PinnedDisplacement(GeneralDisplacement):
"""A pinned nodal displacement boundary condition.
Parameters
----------
name : str
Name of the PinnedDisplacement object.
nodes : str, list
Node set string or nodes list the displacement is applied to.
"""
def __init__(self, name, nodes, axes='global'):
GeneralDisplacement.__init__(self, name=name, nodes=nodes, x=0, y=0, z=0, axes=axes)
self.__name__ = 'PinnedDisplacement'
class FixedDisplacementXX(PinnedDisplacement):
"""A pinned nodal displacement boundary condition clamped in XX.
Parameters
----------
name : str
Name of the FixedDisplacementXX object.
nodes : str, list
Node set string or nodes list the displacement is applied to.
axes : str
'local' or 'global' co-ordinate axes.
"""
def __init__(self, name, nodes, axes='global'):
PinnedDisplacement.__init__(self, name=name, nodes=nodes, axes=axes)
self.__name__ = 'FixedDisplacementXX'
self.components['xx'] = 0
class FixedDisplacementYY(PinnedDisplacement):
"""A pinned nodal displacement boundary condition clamped in YY.
Parameters
----------
name : str
Name of the FixedDisplacementYY object.
nodes : str, list
Node set string or nodes list the displacement is applied to.
axes : str
'local' or 'global' co-ordinate axes.
"""
def __init__(self, name, nodes, axes='global'):
PinnedDisplacement.__init__(self, name=name, nodes=nodes, axes=axes)
self.__name__ = 'FixedDisplacementYY'
self.components['yy'] = 0
class FixedDisplacementZZ(PinnedDisplacement):
"""A pinned nodal displacement boundary condition clamped in ZZ.
Parameters
----------
name : str
Name of the FixedDisplacementZZ object.
nodes : str, list
Node set string or nodes list the displacement is applied to.
axes : str
'local' or 'global' co-ordinate axes.
"""
def __init__(self, name, nodes, axes='global'):
PinnedDisplacement.__init__(self, name=name, nodes=nodes, axes=axes)
self.__name__ = 'FixedDisplacementZZ'
self.components['zz'] = 0
class RollerDisplacementX(PinnedDisplacement):
"""A pinned nodal displacement boundary condition released in X.
Parameters
----------
name : str
Name of the RollerDisplacementX object.
nodes : str, list
Node set string or nodes list the displacement is applied to.
axes : str
'local' or 'global' co-ordinate axes.
"""
def __init__(self, name, nodes, axes='global'):
PinnedDisplacement.__init__(self, name=name, nodes=nodes, axes=axes)
self.__name__ = 'RollerDisplacementX'
self.components['x'] = None
class RollerDisplacementY(PinnedDisplacement):
"""A pinned nodal displacement boundary condition released in Y.
Parameters
----------
name : str
Name of the RollerDisplacementY object.
nodes : str, list
Node set string or nodes list the displacement is applied to.
axes : str
'local' or 'global' co-ordinate axes.
"""
def __init__(self, name, nodes, axes='global'):
PinnedDisplacement.__init__(self, name=name, nodes=nodes, axes=axes)
self.__name__ = 'RollerDisplacementY'
self.components['y'] = None
class RollerDisplacementZ(PinnedDisplacement):
"""A pinned nodal displacement boundary condition released in Z.
Parameters
----------
name : str
Name of the RollerDisplacementZ object.
nodes : str
Node set string or nodes list the displacement is applied to.
axes : str
'local' or 'global' co-ordinate axes.
"""
def __init__(self, name, nodes, axes='global'):
PinnedDisplacement.__init__(self, name=name, nodes=nodes, axes=axes)
self.__name__ = 'RollerDisplacementZ'
self.components['z'] = None
class RollerDisplacementXY(PinnedDisplacement):
"""A pinned nodal displacement boundary condition released in X and Y.
Parameters
----------
name : str
Name of the RollerDisplacementXY object.
nodes : str, list
Node set string or nodes list the displacement is applied to.
axes : str
'local' or 'global' co-ordinate axes.
"""
def __init__(self, name, nodes, axes='global'):
PinnedDisplacement.__init__(self, name=name, nodes=nodes, axes=axes)
self.__name__ = 'RollerDisplacementXY'
self.components['x'] = None
self.components['y'] = None
class RollerDisplacementYZ(PinnedDisplacement):
"""A pinned nodal displacement boundary condition released in Y and Z.
Parameters
----------
name : str
Name of the RollerDisplacementYZ object.
nodes : str, list
Node set string or nodes list the displacement is applied to.
axes : str
'local' or 'global' co-ordinate axes.
"""
def __init__(self, name, nodes, axes='global'):
PinnedDisplacement.__init__(self, name=name, nodes=nodes, axes=axes)
self.__name__ = 'RollerDisplacementYZ'
self.components['y'] = None
self.components['z'] = None
class RollerDisplacementXZ(PinnedDisplacement):
"""A pinned nodal displacement boundary condition released in X and Z.
Parameters
----------
name : str
Name of the RollerDisplacementXZ object.
nodes : str, list
Node set string or nodes list the displacement is applied to.
axes : str
'local' or 'global' co-ordinate axes.
"""
def __init__(self, name, nodes, axes='global'):
PinnedDisplacement.__init__(self, name=name, nodes=nodes, axes=axes)
self.__name__ = 'RollerDisplacementXZ'
self.components['x'] = None
self.components['z'] = None