.. DO NOT EDIT. .. THIS FILE WAS AUTOMATICALLY GENERATED BY SPHINX-GALLERY. .. TO MAKE CHANGES, EDIT THE SOURCE PYTHON FILE: .. "examples\02-Performance-Improvements\03-mesh-external-layer-compare.py" .. LINE NUMBERS ARE GIVEN BELOW. .. only:: html .. note:: :class: sphx-glr-download-link-note :ref:`Go to the end ` to download the full example code .. rst-class:: sphx-glr-example-title .. _sphx_glr_examples_02-Performance-Improvements_03-mesh-external-layer-compare.py: .. _ref_mesh_external_layer_compare_example: Validate External Layer results with full Mesh ============================================== **使用完整网格验证外层结果** 此示例显示以下各项之间的后处理比较： - 仅在外层提取结果和网格。 - 在整个网格上提取结果和网格。 外层是 solid 单元层，其中至少有一个面朝向几何体的外部。 该功能适用于所有类型的力学仿真，允许您缩小网格和提取数据的大小，以提高处理性能。由于较大的应力和应变通常位于模型的外层，因此在大多数情况下，在外层计算结果可提供等效的最大值。 .. GENERATED FROM PYTHON SOURCE LINES 18-21 Perform required imports ------------------------- **执行所需的导入** .. GENERATED FROM PYTHON SOURCE LINES 23-24 本示例使用了一个提供的文件，您可以通过导入 DPF ``examples`` 包获得该文件。 .. GENERATED FROM PYTHON SOURCE LINES 24-29 .. code-block:: Python from ansys.dpf import post from ansys.dpf.post import examples .. GENERATED FROM PYTHON SOURCE LINES 30-33 Get ``Simulation`` object ---------------------------- **将结果文件加载到允许访问结果的 ``Simulation`` 对象中** .. GENERATED FROM PYTHON SOURCE LINES 35-36 必须使用结果文件的路径实例化 ``Simulation`` 对象。例如，Windows 下为 ``"C:/Users/user/my_result.rst"`` 或 Linux 下为 ``"/home/user/my_result.rst"`` 。 .. GENERATED FROM PYTHON SOURCE LINES 36-47 .. code-block:: Python example_path = examples.download_crankshaft() # 自动检测模拟类型，请使用 simulation = post.load_simulation(example_path) # 要启用自动完成功能，请使用等效的命令： simulation = post.StaticMechanicalSimulation(example_path) # 打印 simulation，了解可用内容的概况 print(simulation) .. rst-class:: sphx-glr-script-out .. code-block:: none Static Mechanical Simulation. Data Sources ------------------------------ C:\Users\ff\AppData\Roaming\Python\Python310\site-packages\ansys\dpf\core\examples\result_files\crankshaft\crankshaft.rst DPF Model ------------------------------ Static analysis Unit system: MKS: m, kg, N, s, V, A, degC Physics Type: Mechanical Available results: - displacement: Nodal Displacement - velocity: Nodal Velocity - acceleration: Nodal Acceleration - reaction_force: Nodal Force - stress: ElementalNodal Stress - elemental_volume: Elemental Volume - stiffness_matrix_energy: Elemental Energy-stiffness matrix - artificial_hourglass_energy: Elemental Hourglass Energy - thermal_dissipation_energy: Elemental thermal dissipation energy - kinetic_energy: Elemental Kinetic Energy - co_energy: Elemental co-energy - incremental_energy: Elemental incremental energy - elastic_strain: ElementalNodal Strain - structural_temperature: ElementalNodal Temperature ------------------------------ DPF Meshed Region: 69762 nodes 39315 elements Unit: m With solid (3D) elements ------------------------------ DPF Time/Freq Support: Number of sets: 3 Cumulative Time (s) LoadStep Substep 1 1.000000 1 1 2 2.000000 1 2 3 3.000000 1 3 .. GENERATED FROM PYTHON SOURCE LINES 48-51 Extract displacement data ------------------------- **提取整个网格和外层的位移数据** .. GENERATED FROM PYTHON SOURCE LINES 51-64 .. code-block:: Python displacement_ext = simulation.displacement(external_layer=True) displacement = simulation.displacement() # default is `external_layer=False` displacement_ext.plot() displacement.plot() print( f"number of nodes with `external_layer=True`: {len(displacement_ext.index.mesh_index)}" ) print( f"number of nodes with `external_layer=False`: {len(displacement.index.mesh_index)}" ) .. rst-class:: sphx-glr-horizontal * .. image-sg:: /examples/02-Performance-Improvements/images/sphx_glr_03-mesh-external-layer-compare_001.png :alt: 03 mesh external layer compare :srcset: /examples/02-Performance-Improvements/images/sphx_glr_03-mesh-external-layer-compare_001.png :class: sphx-glr-multi-img * .. image-sg:: /examples/02-Performance-Improvements/images/sphx_glr_03-mesh-external-layer-compare_002.png :alt: 03 mesh external layer compare :srcset: /examples/02-Performance-Improvements/images/sphx_glr_03-mesh-external-layer-compare_002.png :class: sphx-glr-multi-img .. rst-class:: sphx-glr-script-out .. code-block:: none number of nodes with `external_layer=True`: 64079 number of nodes with `external_layer=False`: 69762 .. GENERATED FROM PYTHON SOURCE LINES 65-68 Extract stress/strain data -------------------------- **提取应力/应变数据** .. GENERATED FROM PYTHON SOURCE LINES 70-72 提取整个网格和外层的应力或弹性应变数据。 由于保持单元的连通性不变，因此可以很容易地在外部层上进行平均和不变量计算。 .. GENERATED FROM PYTHON SOURCE LINES 72-93 .. code-block:: Python elemental_stress_ext = simulation.stress_principal_elemental( components=[1], external_layer=True ) elemental_stress = simulation.stress_principal_elemental() elemental_stress_ext.plot() elemental_stress.plot() print( f"number of elements with `external_layer=True`: {len(elemental_stress_ext.index.mesh_index)}" ) print( f"number of elements with `external_layer=False`: {len(elemental_stress.index.mesh_index)}" ) elastic_strain_eqv_ext = simulation.elastic_strain_eqv_von_mises_nodal( external_layer=True ) elastic_strain_eqv = simulation.elastic_strain_eqv_von_mises_nodal() elastic_strain_eqv_ext.plot() elastic_strain_eqv.plot() .. rst-class:: sphx-glr-horizontal * .. image-sg:: /examples/02-Performance-Improvements/images/sphx_glr_03-mesh-external-layer-compare_003.png :alt: 03 mesh external layer compare :srcset: /examples/02-Performance-Improvements/images/sphx_glr_03-mesh-external-layer-compare_003.png :class: sphx-glr-multi-img * .. image-sg:: /examples/02-Performance-Improvements/images/sphx_glr_03-mesh-external-layer-compare_004.png :alt: 03 mesh external layer compare :srcset: /examples/02-Performance-Improvements/images/sphx_glr_03-mesh-external-layer-compare_004.png :class: sphx-glr-multi-img * .. image-sg:: /examples/02-Performance-Improvements/images/sphx_glr_03-mesh-external-layer-compare_005.png :alt: 03 mesh external layer compare :srcset: /examples/02-Performance-Improvements/images/sphx_glr_03-mesh-external-layer-compare_005.png :class: sphx-glr-multi-img * .. image-sg:: /examples/02-Performance-Improvements/images/sphx_glr_03-mesh-external-layer-compare_006.png :alt: 03 mesh external layer compare :srcset: /examples/02-Performance-Improvements/images/sphx_glr_03-mesh-external-layer-compare_006.png :class: sphx-glr-multi-img .. rst-class:: sphx-glr-script-out .. code-block:: none number of elements with `external_layer=True`: 31374 number of elements with `external_layer=False`: 39315 .. rst-class:: sphx-glr-timing **Total running time of the script:** (0 minutes 3.428 seconds) .. _sphx_glr_download_examples_02-Performance-Improvements_03-mesh-external-layer-compare.py: .. only:: html .. container:: sphx-glr-footer sphx-glr-footer-example .. container:: sphx-glr-download sphx-glr-download-jupyter :download:`Download Jupyter notebook: 03-mesh-external-layer-compare.ipynb <03-mesh-external-layer-compare.ipynb>` .. container:: sphx-glr-download sphx-glr-download-python :download:`Download Python source code: 03-mesh-external-layer-compare.py <03-mesh-external-layer-compare.py>` .. only:: html .. rst-class:: sphx-glr-signature `Gallery generated by Sphinx-Gallery `_