File size: 18,089 Bytes
985c397 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 | # ***************************************************************************
# * Copyright (c) 2017 Bernd Hahnebach <bernd@bimstatik.org> *
# * *
# * This file is part of the FreeCAD CAx development system. *
# * *
# * This program is free software; you can redistribute it and/or modify *
# * it under the terms of the GNU Lesser General Public License (LGPL) *
# * as published by the Free Software Foundation; either version 2 of *
# * the License, or (at your option) any later version. *
# * for detail see the LICENCE text file. *
# * *
# * This program is distributed in the hope that it will be useful, *
# * but WITHOUT ANY WARRANTY; without even the implied warranty of *
# * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
# * GNU Library General Public License for more details. *
# * *
# * You should have received a copy of the GNU Library General Public *
# * License along with this program; if not, write to the Free Software *
# * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 *
# * USA *
# * *
# ***************************************************************************
__title__ = "FreeCAD FEM solver object CalculiX"
__author__ = "Bernd Hahnebach"
__url__ = "https://www.freecad.org"
## @package SolverCalculix
# \ingroup FEM
import glob
import os
import FreeCAD
from . import tasks
from .. import run
from .. import solverbase
from femtools import femutils
if FreeCAD.GuiUp:
import FemGui
ANALYSIS_TYPES = ["static", "frequency", "thermomech", "check", "buckling"]
def create(doc, name="SolverCalculiX"):
return femutils.createObject(doc, name, Proxy, ViewProxy)
class _BaseSolverCalculix:
def on_restore_of_document(self, obj):
temp_analysis_type = obj.AnalysisType
obj.AnalysisType = ANALYSIS_TYPES
if temp_analysis_type in ANALYSIS_TYPES:
obj.AnalysisType = temp_analysis_type
else:
FreeCAD.Console.PrintWarning(
f"Analysis type {temp_analysis_type} not found. Standard is used.\n"
)
obj.AnalysisType = ANALYSIS_TYPES[0]
self.add_attributes(obj)
def add_attributes(self, obj):
if not hasattr(obj, "AnalysisType"):
obj.addProperty(
"App::PropertyEnumeration",
"AnalysisType",
"Fem",
"Type of the analysis",
locked=True,
)
obj.AnalysisType = ANALYSIS_TYPES
obj.AnalysisType = ANALYSIS_TYPES[0]
if not hasattr(obj, "GeometricalNonlinearity"):
choices_geom_nonlinear = ["linear", "nonlinear"]
obj.addProperty(
"App::PropertyEnumeration",
"GeometricalNonlinearity",
"Fem",
"Set geometrical nonlinearity",
locked=True,
)
obj.GeometricalNonlinearity = choices_geom_nonlinear
obj.GeometricalNonlinearity = choices_geom_nonlinear[0]
if not hasattr(obj, "MaterialNonlinearity"):
choices_material_nonlinear = ["linear", "nonlinear"]
obj.addProperty(
"App::PropertyEnumeration",
"MaterialNonlinearity",
"Fem",
"Set material nonlinearity",
locked=True,
)
obj.MaterialNonlinearity = choices_material_nonlinear
obj.MaterialNonlinearity = choices_material_nonlinear[0]
if not hasattr(obj, "EigenmodesCount"):
obj.addProperty(
"App::PropertyIntegerConstraint",
"EigenmodesCount",
"Fem",
"Number of modes for frequency calculations",
locked=True,
)
obj.EigenmodesCount = (10, 1, 100, 1)
low_limit = 0.0
if (
hasattr(obj, "EigenmodeLowLimit")
and obj.getTypeIdOfProperty("EigenmodeLowLimit") == "App::PropertyFloatConstraint"
):
low_limit = obj.EigenmodeLowLimit
obj.setPropertyStatus("EigenmodeLowLimit", "-LockDynamic")
obj.removeProperty("EigenmodeLowLimit")
if not hasattr(obj, "EigenmodeLowLimit"):
obj.addProperty(
"App::PropertyFrequency",
"EigenmodeLowLimit",
"Fem",
"Low frequency limit for eigenmode calculations",
locked=True,
)
obj.EigenmodeLowLimit = low_limit
high_limit = 1000000.0
if (
hasattr(obj, "EigenmodeHighLimit")
and obj.getTypeIdOfProperty("EigenmodeHighLimit") == "App::PropertyFloatConstraint"
):
high_limit = obj.EigenmodeHighLimit
obj.setPropertyStatus("EigenmodeHighLimit", "-LockDynamic")
obj.removeProperty("EigenmodeHighLimit")
if not hasattr(obj, "EigenmodeHighLimit"):
obj.addProperty(
"App::PropertyFrequency",
"EigenmodeHighLimit",
"Fem",
"High frequency limit for eigenmode calculations",
locked=True,
)
obj.EigenmodeHighLimit = high_limit
if not hasattr(obj, "IterationsMaximum"):
help_string_IterationsMaximum = (
"Maximum Number of iterations in each time step before stopping jobs"
)
obj.addProperty(
"App::PropertyIntegerConstraint",
"IterationsMaximum",
"Fem",
help_string_IterationsMaximum,
locked=True,
)
obj.IterationsMaximum = 2000
if hasattr(obj, "IterationsThermoMechMaximum"):
obj.IterationsMaximum = obj.IterationsThermoMechMaximum
obj.removeProperty("IterationsThermoMechMaximum")
if not hasattr(obj, "BucklingFactors"):
obj.addProperty(
"App::PropertyIntegerConstraint",
"BucklingFactors",
"Fem",
"Calculates the lowest buckling modes to the corresponding buckling factors",
locked=True,
)
obj.BucklingFactors = 1
time_initial_step = 0.01
if (
hasattr(obj, "TimeInitialStep")
and obj.getTypeIdOfProperty("TimeInitialStep") == "App::PropertyFloatConstraint"
):
time_initial_step = obj.TimeInitialStep
obj.setPropertyStatus("TimeInitialStep", "-LockDynamic")
obj.removeProperty("TimeInitialStep")
if not hasattr(obj, "TimeInitialStep"):
obj.addProperty(
"App::PropertyTime",
"TimeInitialStep",
"Fem",
"Initial time steps",
locked=True,
)
obj.TimeInitialStep = time_initial_step
time_end = 1.0
if (
hasattr(obj, "TimeEnd")
and obj.getTypeIdOfProperty("TimeEnd") == "App::PropertyFloatConstraint"
):
time_end = obj.TimeEnd
obj.setPropertyStatus("TimeEnd", "-LockDynamic")
obj.removeProperty("TimeEnd")
if not hasattr(obj, "TimeEnd"):
obj.addProperty("App::PropertyTime", "TimeEnd", "Fem", "End time analysis", locked=True)
obj.TimeEnd = time_end
time_minimum_step = 0.00001
if (
hasattr(obj, "TimeMinimumStep")
and obj.getTypeIdOfProperty("TimeMinimumStep") == "App::PropertyFloatConstraint"
):
time_minimum_step = obj.TimeMinimumStep
obj.setPropertyStatus("TimeMinimumStep", "-LockDynamic")
obj.removeProperty("TimeMinimumStep")
if not hasattr(obj, "TimeMinimumStep"):
obj.addProperty(
"App::PropertyTime",
"TimeMinimumStep",
"Fem",
"Minimum time step",
locked=True,
)
obj.TimeMinimumStep = time_minimum_step
time_maximum_step = 1.0
if (
hasattr(obj, "TimeMaximumStep")
and obj.getTypeIdOfProperty("TimeMaximumStep") == "App::PropertyFloatConstraint"
):
time_maximum_step = obj.TimeMaximumStep
obj.setPropertyStatus("TimeMaximumStep", "-LockDynamic")
obj.removeProperty("TimeMaximumStep")
if not hasattr(obj, "TimeMaximumStep"):
obj.addProperty(
"App::PropertyTime",
"TimeMaximumStep",
"Fem",
"Maximum time step",
locked=True,
)
obj.TimeMaximumStep = time_maximum_step
if not hasattr(obj, "ThermoMechSteadyState"):
obj.addProperty(
"App::PropertyBool",
"ThermoMechSteadyState",
"Fem",
"Choose between steady state thermo mech or transient thermo mech analysis",
locked=True,
)
obj.ThermoMechSteadyState = True
if not hasattr(obj, "IterationsControlParameterTimeUse"):
obj.addProperty(
"App::PropertyBool",
"IterationsControlParameterTimeUse",
"Fem",
"Use the user defined time incrementation control parameter",
locked=True,
)
obj.IterationsControlParameterTimeUse = False
if not hasattr(obj, "SplitInputWriter"):
obj.addProperty(
"App::PropertyBool",
"SplitInputWriter",
"Fem",
"Split writing of ccx input file",
locked=True,
)
obj.SplitInputWriter = False
if not hasattr(obj, "IterationsControlParameterIter"):
control_parameter_iterations = (
"{I_0},{I_R},{I_P},{I_C},{I_L},{I_G},{I_S},{I_A},{I_J},{I_T}".format(
I_0=4,
I_R=8,
I_P=9,
I_C=200, # ccx default = 16
I_L=10,
I_G=400, # ccx default = 4
I_S="",
I_A=200, # ccx default = 5
I_J="",
I_T="",
)
)
obj.addProperty(
"App::PropertyString",
"IterationsControlParameterIter",
"Fem",
"User defined time incrementation iterations control parameter",
locked=True,
)
obj.IterationsControlParameterIter = control_parameter_iterations
if not hasattr(obj, "IterationsControlParameterCutb"):
control_parameter_cutback = "{D_f},{D_C},{D_B},{D_A},{D_S},{D_H},{D_D},{W_G}".format(
D_f=0.25,
D_C=0.5,
D_B=0.75,
D_A=0.85,
D_S="",
D_H="",
D_D=1.5,
W_G="",
)
obj.addProperty(
"App::PropertyString",
"IterationsControlParameterCutb",
"Fem",
"User defined time incrementation cutbacks control parameter",
locked=True,
)
obj.IterationsControlParameterCutb = control_parameter_cutback
if not hasattr(obj, "IterationsUserDefinedIncrementations"):
stringIterationsUserDefinedIncrementations = (
"Set to True to switch off the ccx automatic incrementation completely "
"(ccx parameter DIRECT). Use with care. Analysis may not converge!"
)
obj.addProperty(
"App::PropertyBool",
"IterationsUserDefinedIncrementations",
"Fem",
stringIterationsUserDefinedIncrementations,
locked=True,
)
obj.IterationsUserDefinedIncrementations = False
if not hasattr(obj, "IterationsUserDefinedTimeStepLength"):
help_string_IterationsUserDefinedTimeStepLength = (
"Set to True to use the user defined time steps. "
"They are set with TimeInitialStep, TimeEnd, TimeMinimum and TimeMaximum"
)
obj.addProperty(
"App::PropertyBool",
"IterationsUserDefinedTimeStepLength",
"Fem",
help_string_IterationsUserDefinedTimeStepLength,
locked=True,
)
obj.IterationsUserDefinedTimeStepLength = False
if not hasattr(obj, "MatrixSolverType"):
known_ccx_solver_types = [
"default",
"pastix",
"pardiso",
"spooles",
"iterativescaling",
"iterativecholesky",
]
obj.addProperty(
"App::PropertyEnumeration",
"MatrixSolverType",
"Fem",
"Type of solver to use",
locked=True,
)
obj.MatrixSolverType = known_ccx_solver_types
obj.MatrixSolverType = known_ccx_solver_types[0]
if not hasattr(obj, "BeamShellResultOutput3D"):
obj.addProperty(
"App::PropertyBool",
"BeamShellResultOutput3D",
"Fem",
"Output 3D results for 1D and 2D analysis ",
locked=True,
)
obj.BeamShellResultOutput3D = True
if not hasattr(obj, "BeamReducedIntegration"):
obj.addProperty(
"App::PropertyBool",
"BeamReducedIntegration",
"Fem",
"Set to True to use beam elements with reduced integration",
locked=True,
)
obj.BeamReducedIntegration = True
if not hasattr(obj, "OutputFrequency"):
obj.addProperty(
"App::PropertyIntegerConstraint",
"OutputFrequency",
"Fem",
"Set the output frequency in increments",
locked=True,
)
obj.OutputFrequency = 1
if not hasattr(obj, "ModelSpace"):
model_space_types = ["3D", "plane stress", "plane strain", "axisymmetric"]
obj.addProperty(
"App::PropertyEnumeration", "ModelSpace", "Fem", "Type of model space", locked=True
)
obj.ModelSpace = model_space_types
if not hasattr(obj, "ThermoMechType"):
thermomech_types = ["coupled", "uncoupled", "pure heat transfer"]
obj.addProperty(
"App::PropertyEnumeration",
"ThermoMechType",
"Fem",
"Type of thermomechanical analysis",
locked=True,
)
obj.ThermoMechType = thermomech_types
if not hasattr(obj, "BucklingAccuracy"):
obj.addProperty(
"App::PropertyFloatConstraint",
"BucklingAccuracy",
"Fem",
"Accuracy for buckling analysis",
locked=True,
)
obj.BucklingAccuracy = 0.01
if not hasattr(obj, "ExcludeBendingStiffness"):
obj.addProperty(
"App::PropertyBool",
"ExcludeBendingStiffness",
"Fem",
"Exclude bending stiffness to replace shells with membranes or beams with trusses",
locked=True,
)
obj.ExcludeBendingStiffness = False
if not hasattr(obj, "PastixMixedPrecision"):
obj.addProperty(
"App::PropertyBool",
"PastixMixedPrecision",
"Fem",
"Mixed precision for the PaStiX matrix solver",
locked=True,
)
obj.PastixMixedPrecision = False
class Proxy(solverbase.Proxy, _BaseSolverCalculix):
"""The Fem::FemSolver's Proxy python type, add solver specific properties"""
Type = "Fem::SolverCalculix"
def __init__(self, obj):
super().__init__(obj)
obj.Proxy = self
self.add_attributes(obj)
def onDocumentRestored(self, obj):
self.on_restore_of_document(obj)
def createMachine(self, obj, directory, testmode=False):
return run.Machine(
solver=obj,
directory=directory,
check=tasks.Check(),
prepare=tasks.Prepare(),
solve=tasks.Solve(),
results=tasks.Results(),
testmode=testmode,
)
def editSupported(self):
return True
def edit(self, directory):
pattern = os.path.join(directory, "*.inp")
FreeCAD.Console.PrintMessage(f"{pattern}\n")
f = glob.glob(pattern)[0]
FemGui.open(f)
def execute(self, obj):
return
class ViewProxy(solverbase.ViewProxy):
pass
"""
Should there be some equation object for Calculix too?
Necessarily yes! The properties GeometricalNonlinearity,
MaterialNonlinearity, ThermoMechSteadyState might be moved
to the appropriate equation.
Furthermore the material Category should not be used in writer.
See common material object for more information. The equation
should used instead to get this information needed in writer.
"""
|