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FEM: constraint tie, implement object and ccx writer

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This commit is contained in:
UR-0
2020-02-19 17:56:39 +01:00
committed by Bernd Hahnebach
parent 649d7332d3
commit 458a27f2fc
9 changed files with 270 additions and 0 deletions
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75
src/Mod/Fem/femsolver/calculix/writer.py
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@@ -117,6 +117,8 @@ class FemInputWriterCcx(writerbase.FemInputWriter):
self.write_node_sets_constraints_planerotation(inpfile)
if self.contact_objects:
self.write_surfaces_constraints_contact(inpfile)
if self.tie_objects:
self.write_surfaces_constraints_tie(inpfile)
if self.transform_objects:
self.write_node_sets_constraints_transform(inpfile)
if self.analysis_type == "thermomech" and self.temperature_objects:
@@ -143,6 +145,8 @@ class FemInputWriterCcx(writerbase.FemInputWriter):
self.write_constraints_planerotation(inpfile)
if self.contact_objects:
self.write_constraints_contact(inpfile)
if self.tie_objects:
self.write_constraints_tie(inpfile)
if self.transform_objects:
self.write_constraints_transform(inpfile)
@@ -229,6 +233,8 @@ class FemInputWriterCcx(writerbase.FemInputWriter):
inpfileHeatflux = open(name + "_Node_Heatlfux.inp", "w")
if self.contact_objects:
inpfileContact = open(name + "_Surface_Contact.inp", "w")
if self.tie_objects:
inpfileContact = open(name + "_Surface_Tie.inp", "w")
if self.transform_objects:
inpfileTransform = open(name + "_Node_Transform.inp", "w")
@@ -242,6 +248,8 @@ class FemInputWriterCcx(writerbase.FemInputWriter):
self.write_node_sets_constraints_planerotation(inpfileNodes)
if self.contact_objects:
self.write_surfaces_constraints_contact(inpfileContact)
if self.tie_objects:
self.write_surfaces_constraints_tie(inpfileContact)
if self.transform_objects:
self.write_node_sets_constraints_transform(inpfileTransform)
@@ -260,6 +268,12 @@ class FemInputWriterCcx(writerbase.FemInputWriter):
if self.contact_objects:
inpfileMain.write("*INCLUDE,INPUT=" + include_name + "_Surface_Contact.inp \n")
inpfileMain.write("\n***********************************************************\n")
inpfileMain.write("** Surfaces for tie constraint\n")
inpfileMain.write("** written by write_surfaces_constraints_tie\n")
if self.tie_objects:
inpfileMain.write("*INCLUDE,INPUT=" + include_name + "_Surface_Tie.inp \n")
inpfileMain.write("\n***********************************************************\n")
inpfileMain.write("** Node sets for transform constraint\n")
inpfileMain.write("** written by write_node_sets_constraints_transform\n")
@@ -295,6 +309,8 @@ class FemInputWriterCcx(writerbase.FemInputWriter):
self.write_constraints_planerotation(inpfileMain)
if self.contact_objects:
self.write_constraints_contact(inpfileMain)
if self.tie_objects:
self.write_constraints_tie(inpfileMain)
if self.transform_objects:
self.write_constraints_transform(inpfileMain)
@@ -574,6 +590,46 @@ class FemInputWriterCcx(writerbase.FemInputWriter):
for i in femobj["ContactMasterFaces"]:
f.write("{},S{}\n".format(i[0], i[1]))
def write_surfaces_constraints_tie(self, f):
# get surface nodes and write them to file
f.write("\n***********************************************************\n")
f.write("** Surfaces for tie constraint\n")
f.write("** written by {} function\n".format(sys._getframe().f_code.co_name))
obj = 0
for femobj in self.tie_objects:
# femobj --> dict, FreeCAD document object is femobj["Object"]
tie_obj = femobj["Object"]
f.write("** " + tie_obj.Label + "\n")
cnt = 0
obj = obj + 1
for o, elem_tup in tie_obj.References:
for elem in elem_tup:
ref_shape = o.Shape.getElement(elem)
cnt = cnt + 1
if ref_shape.ShapeType == "Face":
if cnt == 1:
name = "TIE_DEP" + str(obj)
else:
name = "TIE_IND" + str(obj)
f.write("*SURFACE, NAME=" + name + "\n")
v = self.mesh_object.FemMesh.getccxVolumesByFace(ref_shape)
if len(v) > 0:
# volume elements found
FreeCAD.Console.PrintLog(
"{}, surface {}, {} touching volume elements found\n"
.format(tie_obj.Label, name, len(v))
)
for i in v:
f.write("{},S{}\n".format(i[0], i[1]))
else:
# no volume elements found, shell elements not allowed
FreeCAD.Console.PrintError(
"{}, surface {}, Error: "
"No volume elements found!\n"
.format(tie_obj.Label, name)
)
def write_node_sets_constraints_transform(self, f):
# get nodes
self.get_constraints_transform_nodes()
@@ -1005,6 +1061,25 @@ class FemInputWriterCcx(writerbase.FemInputWriter):
stick = (slope / 10.0)
f.write(str(friction) + ", " + str(stick) + " \n")
def write_constraints_tie(self, f):
f.write("\n***********************************************************\n")
f.write("** Tie Constraints\n")
f.write("** written by {} function\n".format(sys._getframe().f_code.co_name))
obj = 0
for femobj in self.tie_objects:
# femobj --> dict, FreeCAD document object is femobj["Object"]
obj = obj + 1
tie_obj = femobj["Object"]
f.write("** {}\n".format(tie_obj.Label))
tolerance = str(tie_obj.Tolerance.getValueAs("mm")).rstrip()
f.write(
"*TIE, POSITION TOLERANCE={}, ADJUST=NO, NAME=TIE{}\n"
.format(tolerance, obj)
)
ind_surf = "TIE_IND" + str(obj)
dep_surf = "TIE_DEP" + str(obj)
f.write("{},{}\n".format(dep_surf, ind_surf))
def write_constraints_planerotation(self, f):
f.write("\n***********************************************************\n")
f.write("** PlaneRotation Constraints\n")

1
src/Mod/Fem/femsolver/writerbase.py
View File

@@ -66,6 +66,7 @@ class FemInputWriter():
self.pressure_objects = member.cons_pressure
self.selfweight_objects = member.cons_selfweight
self.temperature_objects = member.cons_temperature
self.tie_objects = member.cons_tie
self.transform_objects = member.cons_transform
# working dir
self.dir_name = dir_name