89 lines
3.2 KiB
Python
89 lines
3.2 KiB
Python
# ***************************************************************************
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# * Copyright (c) 2021 Bernd Hahnebach <bernd@bimstatik.org> *
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# * *
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# * This file is part of the FreeCAD CAx development system. *
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# * *
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# * This program is free software; you can redistribute it and/or modify *
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# * it under the terms of the GNU Lesser General Public License (LGPL) *
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# * as published by the Free Software Foundation; either version 2 of *
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# * the License, or (at your option) any later version. *
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# * for detail see the LICENCE text file. *
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# * *
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# * This program is distributed in the hope that it will be useful, *
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# * but WITHOUT ANY WARRANTY; without even the implied warranty of *
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# * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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# * GNU Library General Public License for more details. *
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# * *
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# * You should have received a copy of the GNU Library General Public *
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# * License along with this program; if not, write to the Free Software *
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# * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 *
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# * USA *
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# * *
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# ***************************************************************************
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__title__ = "FreeCAD FEM calculix constraint temperature"
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__author__ = "Bernd Hahnebach"
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__url__ = "https://www.freecad.org"
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import FreeCAD
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def get_analysis_types():
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return ["thermomech"]
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# name must substitute underscores for whitespace (#7360)
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def get_sets_name():
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return "constraints_temperature_node_sets"
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def get_constraint_title():
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return "Fixed temperature constraint applied"
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def write_meshdata_constraint(f, femobj, temp_obj, ccxwriter):
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f.write(f"*NSET,NSET={temp_obj.Name}\n")
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for n in femobj["Nodes"]:
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f.write(f"{n},\n")
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def get_before_write_meshdata_constraint():
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return ""
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def get_after_write_meshdata_constraint():
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return ""
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def get_before_write_constraint():
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return ""
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def get_after_write_constraint():
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return ""
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def write_constraint(f, femobj, temp_obj, ccxwriter):
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# floats read from ccx should use {:.13G}, see comment in writer module
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NumberOfNodes = len(femobj["Nodes"])
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if temp_obj.ConstraintType == "Temperature":
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f.write("*BOUNDARY\n")
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f.write(
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"{},11,11,{}\n".format(
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temp_obj.Name, FreeCAD.Units.Quantity(temp_obj.Temperature.getValueAs("K"))
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)
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)
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f.write("\n")
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elif temp_obj.ConstraintType == "CFlux":
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f.write("*CFLUX\n")
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# CFLUX has to be specified in mW
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f.write(
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"{},11,{}\n".format(
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temp_obj.Name,
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FreeCAD.Units.Quantity(temp_obj.CFlux.getValueAs("mW")) / NumberOfNodes,
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)
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)
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f.write("\n")
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