supports.rst

Supports

The following kinds of support conditions are possible.

• hinged (the node is able to rotate, but cannot translate)
• roll (the node is able to rotate and translation is allowed in one direction)
• fixed (the node cannot translate and not rotate)
• spring (translation and rotation are allowed but only with a linearly increasing resistance)

add_support_hinged

anastruct.fem.system.SystemElements.add_support_hinged

Example

ss.add_element(location=[5, 1])
ss.add_support_hinged(node_id=[1, 2])
ss.show_structure()

add_support_roll

anastruct.fem.system.SystemElements.add_support_roll

Example

ss.add_element(location=[5, 5])
ss.add_support_roll(node_id=2, direction=1)
ss.add_support_roll(node_id=1, direction=2)
ss.show_structure()

add_support_fixed

anastruct.fem.system.SystemElements.add_support_fixed

Example

ss.add_element(location=[0, 2.5])
ss.add_support_fixed(node_id=1)
ss.show_structure()

add_support_spring

Example

ss.add_element(location=[5, 5])
ss.add_support_spring(node_id=1, translation=3, k=1000)
ss.add_support_spring(node_id=-1, translation=2, k=1000)
ss.show_structure()

anastruct.fem.system.SystemElements.add_support_spring