Model files for student edition users accompaniment to the. Peter haensch, optimization specialist, eurocopter gmbh, germany. Multiobjective optimization design of control arm using. Define a topology design variable for the design region 1. Optistruct is the industry standard for the optimization of topology, composites, mechanisms and additive manufactured parts, but over the past three decades, it has evolved into a comprehensive linear and nonlinear analysis solution, delivering the functionality that customers of traditional nonlinear implicit codes expect coupled with the high performance they need. Designs created with optimization as a basis result in much better alignment of performance with aesthetic and ergonomic design intent. Finally, for the optimization go to analysis optistruct save the file first and then click on optistruct d. Simply supported beam bending exercise using hyperbeam. Topography optimization is an advanced form of shape optimization in which a design region for a given part is defined and a pattern of shape variablebased reinforcements. Importing to hypermesh the next step is to import the model to hypermesh. Optistruct does this automatically, following userdefined parameters. Click optistruct to run the optimization, exporting the. With this tool, you can upload and optimize multiple files at the same time batch processing. File creation this file is only created when size or shape optimization is.
Postprocess the new freeshape optimization results. Gauge optimization is used to optimize the thickness of a design space. Students will learn optimization concepts and do handson exercises for topology, topography, size, and shape optimizations. The software helped us to achieve substantial weight savings. This file is only used with optistruct topology optimization runs. Resource library altair hyperworks resources videos. For a freesize optimization optistruct automatically creates a. The iges format was chosen to make it easy to import in any cad system. Click optistruct in analysis page to perform the optimization run. Substructure topology optimization of an electric machine thesis in partial fulfilment of the requirements for the degree of master of science in mechanical engineering espoo, finland on june 3rd, 20 supervisor of the thesis professor jukka tuhkuri instructor of the thesis m. Structural design optimization of starter bracket using altair optistruct. For every section of the tutorial the appropriate hmfemfiles are available. In this chapter the background, purpose, objective and limitations are described together with the used. It is the industryleading and most widely used solution for structural design and optimization.
Nonlinear optimization of suspension link for optimal. Learn step by step by doing simple and powerful examples. They provide product design and engineering solutions, enterprise services and cloud computing. Only valid with amls option or when param, amls is set to yes. Hello, i am wondering if it is possible to convert the hypermesh files or optistruct input file into 3d pdf. To use the default settings, choose standard from the settings menu, and then skip to step 6. The proposed paper presents the implementation of modal frequency response optimization in the commercial software optistruct1. Optistruct uses topology optimization to generate innovative concept design proposals. Apr 06, 2015 this webinar is part of a series offered to students and student teams participating in for instance, motorsport competition. Optistruct optimization complete tutorials topology optimization. Using altair optistruct, germanybased claas was able to significantly reduce the assembly and maintenance costs of their harvester reel hub assembly. These areas can be addressed subsequently through size, shape, and free shape optimization or a combination thereof. Topography optimization works by dividing the design region, which in this case is the entire plate except for the areas near the loads and constraints, into smaller areas, each with its own shape variable.
Submit the job to optistruct new results files can be seen in the directory where the optistruct model file was. Select the switch below response type and select frequency from the popup menu. Optistruct for optimization english solver and optimization register now. For example, optistruct can be run with 1 processor and amls with 4 processors in the same run. Methodology for topology and shape optimization in the design process master s thesis in the master s programme solid and fluid mechanics anton olason. Hello im new to hyperworks and would like to learn via tutorials, especially optistuct and hypermesh for ply and composite analysis and optimisation. 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. Snapfit optimization for achieving desired insertion and retention forces learn more. When the run has completed, from the optistruct panel, click on the hyperview button to launch the postprocessing report carm. Optistruct for optimization optimization using optistruct this is an introductory course for using optistruct for optimization in the product design process. This file contains the element definitions for those elements that were part of the design space. The composite optimization process involves three steps. Design optimisation using optistruct optistruct for structural optimisation 2 day training course altair optistruct is an implicit finite elements solver and market leading febased optimisation tool widely adopted across a variety of industries including not limited to aerospace, automotive and motorsports. 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.
The stress constraint definition in a topology optimization is a global constraint and does not. Define an upper bound constraint on the disp response for the brake loadcase of 0. You can keep it in your computer, read it as a pdf file, print it recommended or take it wherever you want on a. The software that will be used are the preprocessor hypermesh, the optimization tool optistruct and the postprocessor hyperview, all of them products of altair engineer. Open the pdf optimizer dialog box file save as other optimized pdf, or go to tools optimize pdf, and click advanced optimization. I found inspire very effective and easy tool to use for optimization. I suggest you to see links and attached files on topic. Click the run options switch and select optimization. Direct support of rspdac files in optistruct enable ease in set up solver pick up channels directly from rsp files both parent metal and seam weld fatigue run in a single model set up parent metal. I am not getting proper results of topology as expected. In this case, optistruct can still be embedded into an engineering workflow for its optimization capabilities. Principles of vibration analysis with femap and nx nastran. Download file endesign optimization for am in optistruct with consideration of oha in topology optimization. Altair was founded by james r scapa, george christ, and mark kistner in 1985.
Optistruct s designsynthesis technology uses the topology optimization approach to generate innovative concept design proposals. The offtheshelf optimization software, optistruct, by altair engineering was applied to this halfbeam geometry. If you change any settings in the pdf optimizer dialog box, the settings menu automatically switches to custom. Using highly advanced optimization algorithms, optistruct can solve the most complex optimization problems with thousands of design variables in a short period of time. You do not need previous knowledge in topology optimization.
Altairs hyperstudy provides a number of algorithms sqp, arsm, mfd, ga, sora to cover a wide range of optimization problems. Optistruct as solver for topology optimization part1. User guide to the optimization code optistruct optistruct optimization 10 training manual mar 01, 2011 transcript of optistruct optimization 10 training manual free shape optimization no userdefined shape perturbation vector is necessary. Based on topology optimization a proposal for a beam layout in the front structure area has been identified. 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. Results from optistruct provide a guide for design, but are not optimal for. Verifying the result with hand calculations theory 2d. When to use 2 d elements, family of 2 d elements, how not to mesh, quality checks of 2d elements. Substructure topology optimization of an electric machine thesis in partial fulfilment of the requirements for the degree of master of science in mechanical engineering espoo, finland on june 3rd, 20 supervisor of the thesis professor jukka tuhkuri. Pdf optistruct optimization gonzalo anzaldo munoz academia.
If one further computes with the initial model, due to different inputs beginning in. Topology optimization can be applied to 1d, 2d and 3d design spaces. I used solidthinking inspire and optistruct to perform 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. Single model multi attribute analysis and optimization. Optistruct is based on the solid isotropic microstrucutre with penalization simp topology optimization theory, developed by bedsoe in 1989 12. Select the directory where you would like to save the database and enter the name for the database, hook.
If the job was successful, new results files can be seen in the directory where the optistruct model file was written. Optimization technology optistructs optimization technology is simply the best in the world. Post processing in hyperview open the results in hyperview for post. Recent advances in nonlinear response structural optimization using the equivalent static loads method oct. Psd analysis of an arm bracket using optistruct youtube. Topology optimization of a control arm altair connect. In the topology panel under the optimization section of the analysis page, under desvar. Define an upper bound constraint on the disp response for the pothole loadcase of 0. Click here for the model files model files for hypermesh tutorials model files for optistruct tutorials model files for radioss tutorials model files for hyperview, motionview and hypergraph tutorials model files for hyperstudy tutorials. Hypermesh command file used to organize elements into components based on their density result values. Structural optimization using optistruct concepts, analysis, and optimization for. Overrides the param, amlsncpu setting in the input file.
Optimizationenabled structural analysis altair optistruct. Pdf modal frequency response optimization in optistruct. Altair optistruct continues to grow rapidly as a comprehensive solution for structural analysis and optimization. Nonlinear optimization of suspension link for optimal performance using altairs optistruct and hyperworks abhinand chelikani, deparment manager cae, magna cosma. The optimized thickness of these elements are provided as nodal thickness values ti. Leveraging optistruct s topography optimization capabilities, claas designed the optimal reel hub reinforcement bead pattern, which, in turn, reduced the eightpart assembly to two pieces. Apr 12, 2011 using altair optistruct, one can optimize the composite panel design achieving significant weight savings and performance enhancements. Optistruct and amls can be run with different allocations of processors. We used optistruct on different parts of the aircraft passenger door system. Methodology for topology and shape optimization in the. Topology optimization of a hook with stress constraints. Oct 07, 2010 handling multiobjective optimization problems with hyperstudy. Optimization driven design applied to motocross steering and suspension components. Skateboard tutorial altair optistruct altair forum.
This webinar is part of a series offered to students and student teams participating in for instance, motorsport competition. Different manufacturing constraints could be applied to different candidate materials in the same design domain. This is because data inputs for the software are compatible with nastran and the outputs are the familiar punch and op2 files. 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. Optistruct user guide pdf download pdf manual free. In the topology panel under the optimization section of the analysis page, under desvar, enter the name design. Recent advances in nonlinear response structural optimization. Design variable and linking response and constraint set up automation for single model and optimization 6. Review this file for warnings and errors that are flagged from processing the.
This page lets you optimize and compress pdf files to decrease file size, e. Compare the mass of the initial structure and that of the optimized structure in hypermesh. Start hypermesh and select optistruct on the user profiles window. Optistruct generates an optimal design proposal based on a userdefined design space, performance targets, and manufacturing constraints.
Optistruct strength optistruct fatigue optistruct pre processing fatigue set up solver dac,rpc,rsp file channel handling within solver post processing. Intel mac, there is no official plugin for viewing pdf files within the browser window. Create optimization responses a detailed description on responses can be found in the online optistruct manual under responses. Student contest, hyperworks students education, optimisation contest, aoc 2012. For this example, the smaller areas can each move upward. From hypermesh a file which com pletely describes the problem is exported and then processed using optistruct. Optimization problems considered consist of rinding the boundary of a body such that the optimized functional volume of the body attains an extremal value, while satisfying prescribed bounds on. This file contains the element definitions for those elements that. An integrative optimization algorithm of meshes quadrilateral meshes based on cloud data is designed, and topology optimization of degree 2 and 3 nodes are programmed and debugged. The factor of safety for the three load cases were 1. Pdf structural design optimization of starter bracket. Freeshape optimization of a 3d bracket using the free.
Pdf optistruct 2017 tutorials and examples gonzalo. Psd analysis in optistruct using frequency response process. Luxon engineering applies optimizationdriven design to motocross. You will be able to do the same examples showed in the tutorial you will not need extra files.
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