- Ansys topology optimization how to#
- Ansys topology optimization verification#
- Ansys topology optimization software#
The image shows the settings for the Filter dataset as well as the plot of the region defined by the dataset. Clicking the Plot button gives a visualization of the regions represented by this level. In the Settings window for the Filter node, enter dtopo1.theta as your Expression and set Lower level: 0.5. The More Datasets menu on the Results ribbon presents one way of adding a Filter dataset. However, for 2D, this needs to be set up manually by adding a Filter dataset from the More Datasets menu on the Results ribbon.
For a 3D topology optimization study, such a dataset is set up automatically with the default plots. To create a geometry out of this result, we will use a Filter dataset. In other applications, the expression and exact level to plot may differ, but the principle is the same: to find a contour that describes the limit between the solid and nonsolid materials (typically a fluid of some kind). This indicates the border between the open channel and filling material, which is the result that we would like to incorporate into the geometry. In the results plot above, the black contour is where the design variable, \gamma, equals 0.5. The black contours represent the filling material. The horizontal velocity (surface plot) and velocity field (streamlines) after optimization. The goal of the tutorial is to find an optimal distribution of a porous filling material to minimize the horizontal flow velocity in the center of a microchannel.
Ansys topology optimization verification#
An MPH-file with the added selections and verification study can be downloaded via a link at the end of this blog post. In addition to the original tutorial, we will also show how added domain and boundary Selections are imported and can be reused while running verification studies on the newly created geometry. Let’s use the Minimizing the Flow Velocity in a Microchannel tutorial to demonstrate this process. However, there are some additional steps for 2D geometries. The steps to generate a geometry of topology optimization results using a Filter dataset is the same for 2D and 3D geometries as of COMSOL Multiphysics version 5.5.
Ansys topology optimization how to#
How to Generate a Geometry of Topology Optimization Results in COMSOL Multiphysics® We will start by looking at how to create a geometry and will then move on to discuss how we can skip the step of creating a geometry by importing and modifying a mesh to prepare it for simulations.
Ansys topology optimization software#
As it turns out, COMSOL Multiphysics makes it simple to create both of these from 2D and 3D simulations, which you can continue to work with directly in COMSOL Multiphysics or export to a wide range of CAD software platforms. But how do we do this? We either need a geometry that we can mesh, or we need an imported mesh representing the topology optimization results. To address these concerns, we can come up with new designs that are based on the results of topology optimization, and then carry out further simulation analyses on them. Topology optimization results for an MBB beam. It may not be reasonable or possible to construct a particular design found through topology optimization, either because the design is too costly to produce or it is simply not possible to manufacture. When developing a design, however, this is only the first step. Topology optimization is a useful capability because it can help us find designs that we would not have reasonably been able to think of ourselves. Using Topology Optimization Results in the Design Workflow It has since been updated to include more information about using the Filter dataset. This post was originally published in 2017. With the COMSOL Multiphysics® software, you can create geometries from topology optimization results plots for further analysis and easily export them to CAD software. The optimization uses an approximate representation of the physics in the areas to be removed, so you should remove these areas from the geometry and perform a new simulation to verify the optimization results.
© 2020, Springer Nature Switzerland AG.Topology optimization is an optimization technique that can divide the simulation domain into areas to be either kept or removed. The article also identifies further ways of developing the method. Such a calculation would allow the introduction of a more adequate criterion for the connecting rod performance criterion. At the end of the work it was concluded that it is necessary to perform a detailed elastohydrodynamic calculation of sliding bearings. After optimization, the analysis of the obtained results was performed. The objective function, constraints and performance criteria necessary to perform the optimization are determined. The article presents the result of optimizing the shape of a diesel engine connecting rod with the help of the developed method.
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