.. DO NOT EDIT. .. THIS FILE WAS AUTOMATICALLY GENERATED BY SPHINX-GALLERY. .. TO MAKE CHANGES, EDIT THE SOURCE PYTHON FILE: .. "examples/03-Cyclic-Examples/04-cyclic-mesh-skin.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_03-Cyclic-Examples_04-cyclic-mesh-skin.py: .. _ref_cyclic_mesh_skin_example: Reduce Cyclic Model Size by using Mesh Skin for Result and Mesh extraction ========================================================================== This example displays post-processing on a mesh skin for a cyclic modal analysis. The skin mesh is rebuilt with new surface elements connecting the nodes on the external skin of the solid mesh. These surface elements types are chosen with respect to the solid elements facets having all their nodes on the skin. This feature is available for all types of Mechanical simulation supporting cyclic (or cyclic multistage) and allows you to reduce the size of the mesh and of the extracted data to improve processing performance. Since larger stress and strains are usually located on the skin of a model, computing results on the skin gives equivalent maximum values in most cases. Post-processing of elemental or elemental nodal results requires element solid to skin mapping to get from a solid element result to a facet result. The connectivity of the new surface elements built on the skin being different from the connectivity of the solid elements, small differences can be found after result averaging. To plot cyclic expanded results, the skin mesh is expanded. .. GENERATED FROM PYTHON SOURCE LINES 22-26 Perform required imports ------------------------ This example uses a supplied file that you can get using the ``examples`` module. .. GENERATED FROM PYTHON SOURCE LINES 26-30 .. code-block:: Python from ansys.dpf import post from ansys.dpf.post import examples .. GENERATED FROM PYTHON SOURCE LINES 31-37 Get ``Simulation`` object ------------------------- Get the ``Simulation`` object that allows access to the result. The ``Simulation`` object must be instantiated with the path for the result file. For example, ``"C:/Users/user/my_result.rst"`` on Windows or ``"/home/user/my_result.rst"`` on Linux. .. GENERATED FROM PYTHON SOURCE LINES 37-45 .. code-block:: Python example_path = examples.download_modal_cyclic() simulation = post.ModalMechanicalSimulation(example_path) # print the simulation to get an overview of what's available print(simulation) .. rst-class:: sphx-glr-script-out .. code-block:: none Modal Mechanical Simulation. Data Sources ------------------------------ /opt/hostedtoolcache/Python/3.10.14/x64/lib/python3.10/site-packages/ansys/dpf/core/examples/result_files/cyclic/modal_cyclic.rst DPF Model ------------------------------ Modal analysis Unit system: MKS: m, kg, N, s, V, A, degC Physics Type: Mechanical Available results: - displacement: Nodal Displacement - reaction_force: Nodal Force - stress: ElementalNodal Stress - elastic_strain: ElementalNodal Strain - element_euler_angles: ElementalNodal Element Euler Angles ------------------------------ DPF Meshed Region: 928 nodes 3836 elements Unit: m With solid (3D) elements ------------------------------ DPF Time/Freq Support: Number of sets: 48 Cumulative Frequency (Hz) LoadStep Substep Harmonic index 1 51369.575105 1 1 0.000000 2 114291.419744 1 2 0.000000 3 238849.856755 1 3 0.000000 4 254031.324493 1 4 0.000000 5 337729.470910 1 5 0.000000 6 348699.692284 1 6 0.000000 7 51970.152101 2 1 1.000000 8 51970.152101 2 2 -1.000000 9 126647.471593 2 3 -1.000000 10 126647.471593 2 4 1.000000 11 239807.889703 2 5 -1.000000 12 239807.889703 2 6 1.000000 13 54198.644112 3 1 2.000000 14 54198.644112 3 2 -2.000000 15 157264.852222 3 3 -2.000000 16 157264.852222 3 4 2.000000 17 242073.194077 3 5 -2.000000 18 242073.194077 3 6 2.000000 19 59105.565170 4 1 3.000000 20 59105.565170 4 2 -3.000000 21 194873.849513 4 3 -3.000000 22 194873.849513 4 4 3.000000 23 241988.808784 4 5 3.000000 24 241988.808784 4 6 -3.000000 25 67744.544169 5 1 4.000000 26 67744.544169 5 2 -4.000000 27 218600.039108 5 3 -4.000000 28 218600.039108 5 4 4.000000 29 229679.308122 5 5 4.000000 30 229679.308122 5 6 -4.000000 31 80576.477155 6 1 5.000000 32 80576.477155 6 2 -5.000000 33 192985.645574 6 3 -5.000000 34 192985.645574 6 4 5.000000 35 245990.772448 6 5 5.000000 36 245990.772448 6 6 -5.000000 37 97381.706833 7 1 6.000000 38 97381.706833 7 2 -6.000000 39 166306.784163 7 3 -6.000000 40 166306.784163 7 4 6.000000 41 259986.167834 7 5 6.000000 42 259986.167834 7 6 -6.000000 43 117422.022015 8 1 7.000000 44 117422.022015 8 2 -7.000000 45 141309.163007 8 3 -7.000000 46 141309.163007 8 4 7.000000 47 273449.890447 8 5 -7.000000 48 273449.890447 8 6 7.000000 .. GENERATED FROM PYTHON SOURCE LINES 46-49 Extract displacement data ------------------------- Extract displacement data on the skin. .. GENERATED FROM PYTHON SOURCE LINES 49-54 .. code-block:: Python displacement_skin = simulation.displacement(skin=True) displacement_skin.plot() .. image-sg:: /examples/03-Cyclic-Examples/images/sphx_glr_04-cyclic-mesh-skin_001.png :alt: 04 cyclic mesh skin :srcset: /examples/03-Cyclic-Examples/images/sphx_glr_04-cyclic-mesh-skin_001.png :class: sphx-glr-single-img .. GENERATED FROM PYTHON SOURCE LINES 55-59 Extract stress/strain data -------------------------- Extract stress or elastic strain data over the entire mesh and on the skin. Averaging, and invariants computation are done through a solid to skin connectivity mapping. .. GENERATED FROM PYTHON SOURCE LINES 59-66 .. code-block:: Python elemental_stress_skin = simulation.stress_principal_elemental(components=[1], skin=True) elemental_stress_skin.plot() elastic_strain_eqv_skin = simulation.elastic_strain_eqv_von_mises_nodal(skin=True) elastic_strain_eqv_skin.plot() .. rst-class:: sphx-glr-horizontal * .. image-sg:: /examples/03-Cyclic-Examples/images/sphx_glr_04-cyclic-mesh-skin_002.png :alt: 04 cyclic mesh skin :srcset: /examples/03-Cyclic-Examples/images/sphx_glr_04-cyclic-mesh-skin_002.png :class: sphx-glr-multi-img * .. image-sg:: /examples/03-Cyclic-Examples/images/sphx_glr_04-cyclic-mesh-skin_003.png :alt: 04 cyclic mesh skin :srcset: /examples/03-Cyclic-Examples/images/sphx_glr_04-cyclic-mesh-skin_003.png :class: sphx-glr-multi-img .. GENERATED FROM PYTHON SOURCE LINES 67-69 Get stress results on the skin of the first sector with a cyclic phase ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. GENERATED FROM PYTHON SOURCE LINES 69-77 .. code-block:: Python stress_eqv_cyc_phase = simulation.stress_eqv_von_mises_nodal( set_ids=[5], expand_cyclic=[1], phase_angle_cyclic=45.0, skin=True, ) stress_eqv_cyc_phase.plot() .. image-sg:: /examples/03-Cyclic-Examples/images/sphx_glr_04-cyclic-mesh-skin_004.png :alt: 04 cyclic mesh skin :srcset: /examples/03-Cyclic-Examples/images/sphx_glr_04-cyclic-mesh-skin_004.png :class: sphx-glr-single-img .. rst-class:: sphx-glr-timing **Total running time of the script:** (0 minutes 3.112 seconds) .. _sphx_glr_download_examples_03-Cyclic-Examples_04-cyclic-mesh-skin.py: .. only:: html .. container:: sphx-glr-footer sphx-glr-footer-example .. container:: sphx-glr-download sphx-glr-download-jupyter :download:`Download Jupyter notebook: 04-cyclic-mesh-skin.ipynb <04-cyclic-mesh-skin.ipynb>` .. container:: sphx-glr-download sphx-glr-download-python :download:`Download Python source code: 04-cyclic-mesh-skin.py <04-cyclic-mesh-skin.py>` .. only:: html .. rst-class:: sphx-glr-signature `Gallery generated by Sphinx-Gallery `_