Sep 25, 2014 tutorial 3 setting up the topology optimisation this tutorial shows you how to set up and run a topology optimisation for minimum weighted compliance maximum stiffness for a given volume. Can i add heat flux to nodes elements without using chbdye. Define a topology design variable for the design region 1. It enhances the concept development process by enabling simulationdriven design to increase your products efficiency, strength and manufacturability. Using result mapper in hypercrash in this tutorial, you will learn the procedure for mapping forming results onto structural models using the hyperworks results mapper. In this exercise, a topology optimization is performed on a brackethook modeled. Interpreting the results from the topology optimization is a di cult task and requires experience and knowledge of other aspects such as manufacturability. In part i of this tutorial a linear static analysis was carried out see category.
Composite optimization with optistruct on the example of a formula. The structural model with loads and constraints applied is shown in the figure below. At this stage we need some constraints to apply on the design so that the end design results can be. Cad model of lower control arm designed in proengineer was imported in hypermesh for geometric cleanup and meshing. Tosca is a powerful topology optimization tool for producing design concepts that often cant be manufactured using traditional techniques. Optistruct generates an optimal design proposal based on a userdefined design space, performance targets, and manufacturing constraints. The objective has been to find the optimal topology of beams and rods to achieve high stiffness of the front structure for improved ride and handling. Although its application in actual engineering has gotten great progress, it. Finite element analysis and topology optimization of lower. Sizing optimization thickness of a plate or membrane height, width, radius of the cross section of a beam shape optimization outerinner shape topology optimization number of holes configuration shape of the outer boundary location of the control point of a spline thickness distribution hole 2 hole 1 sizing. Gauge optimization, size and shape, and shell optimization, can be used to improve an existing design without altering its overall architecture. Select fixed point and line to split the surface step 7.
Altair inspire was used for topology optimization in order to find the best design for the vehicle front sub frame. This stepbystep tutorial example shows however, as more reliance on simulation is built up, the hjpermesh shifts to that of final validation with a series. Click the props entity selector box and select the property design. Peter haensch, optimization specialist, eurocopter gmbh, germany.
To optimize and ensure feasibility of their design, they applied topology optimization methods using altair hyperworks, a software suite for computeraided engineering, and worked with altair engineering to integrate advanced optimization techniques into their workflow read more share. The purpose of this exercise is to determine the basic minimum information required to run a topology optimization exercise. Optistruct is a proven, modern structural solver with comprehensive, accurate and scalable solutions for linear and nonlinear analyses across statics and dynamics, vibrations, acoustics, fatigue and multiphysics disciplines. With a strong focus on accuracy, speed and scalability, and easeofuse, altair optistruct 2019 adds significant new functionality for nonlinear analysis, detailed output options for improved diagnostics, large scale parallelization through gpu support, and new design. Topology optimization can be applied to 1d, 2d and 3d design spaces. Hyperworks composite optimization tutorial formulastudentmonocoque altair university. Pdf topology optimization in automotive brake pedal redesign. Create a design variable for topology optimization. Under the dropdown selector for type, select psolid. Student contest, hyperworks students education, optimisation contest, aoc 2012, altair. You do not need previous knowledge in topology optimization. Ossmooth surfaces from a topology optimization the purpose of this exercise is to export from hypermesh the optimized control arm mesh and geometry obtained from topology optimization. Define a topology design variable for the design region step 3.
Each line will become suppressed blue as you click line s. Pdf modal frequency response optimization in optistruct. After topology optimization after shape optimization19% m 9. After topology optimization after shape optimization 19% m 9. Since solid elements were used for design space, make sure you switch to psolid as type and select the design space as the property under props field. Jan 30, 2019 hyperworks composite optimization tutorial formulastudent monocoque. Topology optimization and 3d printing bear many similarities in their philosophies. Topology optimization of a control arm altair connect.
Ability to optimize the angle as well by creating phantom ply. This tutorial is based on the cad model prepared for cfd meshing as per the tutorial, how to extract cfd. In this study, topology optimization of a vehicle front structure has been performed using optistruct by altair engineering. Linear static analysis the objective of this topology optimization study is to minimize the compliance of the bracket based on only 30% of its initial massvolume. Thermal topology optimization in optistruct software. Note that youll need hypermesh or later to open these files. Topology optimization has been extensively studied by many many researchers all over the world. Topology optimization of a hook with stress constraints. Students should note that it differs a little from the procedure shown in the hyperworks tutorial from lab 5, and certainly is not the only way to set up a topology optimization in hypermesh. Create topology design variable and manu constraints for the model. Although the internet offers a lot of content, but there exists a gap in learning and practicing. These same steps may be used on any other form of conceptlevel. It is the industryleading and most widely used solution for structural design and optimization. Topology optimization is a tool for nding a domain in which material is placed that optimizes a certain objective function subject to constraints.
Jun 19, 2019 as products increase in complexity, design becomes more tutorila and the requirement to efficiently deploy multidisciplinary optimization mdo becomes a significant design differentiator. Such matters have not been investigated in any greater detail. This tutorial shows you how to separate design and nondesign space in hypermesh, in preparation for topology optimisation. Methodology for topology and shape optimization in the design. Is there another method to set the flux input to the entire plate topology domain. Based on topology optimization a proposal for a beam layout in the. The minimum requirements for performing a topology. Altair inspire software is the industrys most powerful and easytouse generative designtopology optimization and rapid simulation solution for design engineers. Topology optimization with extrusion using hypermesh and optistruct by prakash pagadala firstly, w hy do we need manufacturing constraints. Optimizationenabled structural analysis altair optistruct. Topology optimization of interior flow domains using optimality criteria methods possible optimization objectives are reduction of total pressure drop homogenization of cross section velocity distribution and more only one single cfd solverrun for a complete optimization process is needed. Topology optimization altair optistruct altair forum. Simply supported beam bending exercise using hyperbeam.
The objective of the optimization is to maximize the stiffness of the. Click optistruct to run the optimization, exporting the. We set up a 3d topology optimizatioin and load results files. Optistruct uses topology optimization to generate innovative concept design proposals. Getting started with hyperworks, import, export, open, save, working with panels, rotate, zoom, pan.
As a result, an inherent benefit for the same design requirement by using this topology optimization technology for 3d printed designs. Sizing optimization thickness of a plate or membrane height, width, radius of the cross section of a beam shape optimization outerinner shape topology optimization number of holes configuration shape of the outer boundary location of the control point of a. Methodology for topology and shape optimization in the. As refer to the example above, that comes from attached paper, the optimization can be done by using optistruct. Hello all, i have recently started exploring fatigue and modal analysis in optistruct. Hyperworks optistruct tutorials and examples learn more at the file is necessary for optistruct to recognize it as an input file. Design optimization design domain topology optimization shape optimization.
May 12, 2019 hyperworks 11 tutorials pdf hyperworks composite optimization tutorial formulastudent monocoque. The new bracket from topology optimization result was compared with the traditional concept model and topology optimization base model under 4 load cases. What is the difference between ansys and hypermesh. Hence, we look for a light weight design of the bracket. Nov 23, 2018 hyperworks topology optimization with stress constraints. Optistruct generates an optimal design proposal for the most efficient material layout of the design based on userdefined design space, design targets and manufacturing process parameters.
Topology optimization setup demonstration in hypermesh 11. Altair partner alliance the apa offers 3rd party technology alongside hyperworks products under one license. Optistructs designsynthesis technology uses the topology optimization approach to generate innovative concept design proposals. The objective is to minimize the mass of the material used in the model subject to certain stress constraints. The mesh is scanned and the program will try to fix as many elements as it can in accordance with the specified settings and criteria. You can now easily perform lightweighting of structures, extract cad shapes and quickly verify the optimized design.
In this example, there are no need for additional constraints since setting a. Optistruct user manual altair optistruct altair forum. Direct linking to hypermesh motionviewhyperform provides hyperstudy direct access to simulation models and to the features such as thickness, concentrated masses, shape changes which are used as the design variables in doe, optimization or stochastic studies. When to use 2 d elements, family of 2 d elements, how not to mesh, quality checks of 2d elements. Complex designs can be easily manufactured, and designs are customized. Altair optistruct continues to grow rapidly as a comprehensive solution for structural analysis and optimization. Topology optimization of an excavator arm model this tutorial demonstrates how to set up an optimization problem of an mbd system using the equivalent static load method esl. Where can i find hypermesh tutorials in the pdf form with. Topology optimization optistructs designsynthesis technology uses the topology optimization approach to generate innovative concept design proposals. Create a topology design variable on property design, with no options at all no draw, no minmax dimensions etc. Topology optimization tutorial bracket altair university. Ansys is all usually hypermesh is used for explicit analysis crash, impact, and bomb blast.
When the run has completed, from the optistruct panel, click on the hyperview button to launch the postprocessing report carm. You will be able to do the same examples showed in the tutorial you will not need extra files. So most of the companies use hypermesh for preprocessing and the they s. Hypermesh preprocessor radioss solver hyperview postprocesor what is topology optimization. Topology optimization can be applied to 1d, 2d, and 3d design spaces. Performance evaluation, scalability analysis, and optimization tuning of altair hyperworks on a modern hpc compute cluster engineers from wide ranges of industries face ever increasing needs for complex, realistic models to analyze the most. Topology optimization driven design development for. This thesis considers topology optimization for structural mechanics problems, where the underlying pde is derived from linear elasticity. Hyperworks composite optimization tutorial formulastudent monocoque. When hyperstudy is launched in a standalone mode, the design variables need to. Several studies of sizing, shape, and topology optimization will be presented in the final paper to demonstrate the new added optimization capability, and to gain insight on how the final designs. In the topology panel under the optimization section of the analysis page, under desvar, enter the name design. You could refer to hyperform manufacturing solution interfacetutorials. The iges format was chosen to make it easy to import in any cad system.
I wanted to know if there is any user manual where meanings of different variables in cards are explained as in ls dyna user manual. In this example, we will work on a metal roof which is. Microsoft powerpoint topology optimization in ansys 18x by john lin author. Additive manufacturing makes topology optimization results accessible for production. Optistruct is the topology optimization module from the cae software altair hyperworks. Altair provides comprehensive software support via web faqs, tutorials, training os. Methodology in order to proceed with this study various forces acting on lower control arm were calculated. Edit the manufacturing constraints for the topology design variable. All of the manual work with setting up the problem for topology optimization is done using hypermesh. Design variables topology optimization optistruct user guide pdf. Acusolve tutorials pdf pipe flow analysis using hypermesh and acusolve. Topology optimization of vehicle body structure diva portal.
It includes a list of the panels by page and alphabetically. Topology optimization results sometimes give design which cannot be manufactured economically. The software helped us to achieve substantial weight savings. The available volume design space, 5 different load cases and target mass were specified and the optimization software calculated geometry to maximize stiffness. Those designs are driven by the functional requirements of the part. Topology optimization lets you specify where supports and loads are located on a volume of material and lets the software find the best shape. Design and optimization of lattice structures for 3d. At this stage we need some constraints to apply on the design so that the end design results can be manufactured within the available tools and costs. With the nodes selector active, select one node on the edge of the smaller hole as indicated in the following image. We see a great symbiosis between topology optimization and additive manufacturing, with both technologies sharing very similar philosophies in. Learn step by step by doing simple and powerful examples. You can easily excess all the tutorial in pdf from oficial site of altair hyperwork you can also get all the pdf through the software. Start hypermesh and select optistruct on the user profiles window. Meshed model of the lower arm essentially consist of 11280nodes.
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