Optistruct as solver for topology optimization part1. Optistruct is the topology optimization module from the cae software altair hyperworks. 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. Optistrut extracting global stiffness matrix altair. Optistruct for optimization optimization using optistruct this is an introductory course for using optistruct for optimization in the product design process. Topology optimization can be applied to 1d, 2d and 3d design spaces. Optistruct and hyperview which are parts of the software suite hyperworks from. The model is setup in hypermesh, and the topology optimization job is run with optistruct. This is an introductory course for using optistruct for finite element analysis on fatigue. In the topology panel under the optimization section of the analysis page, under desvar, enter the name design.
You can now easily perform lightweighting of structures, extract cad shapes and quickly verify the optimized design. The software helped us to achieve substantial weight savings. Topology optimization is not new for many years, altair has evangelized and democratized this technology in a wide range of industries, and it continues. Topology optimization of a control arm with manufacturing constraints the purpose of this exercise is to determine the best topology using the minimum mass. We perform reliabilitybased topology optimization by combining reliability analysis and material distribution topology design altair optistruct. Students will learn optimization concepts and do handson exercises for topology, topography, size, and shape optimizations.
Optistruct as solver for topology optimization part2. 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. Once neuber response is defined, the material will be treated as linear and mats1 props are used only for neuber correction. Tech automotive engineering, school of mechanical and building sciences, vit university, vellore. Topology optimization of a formula sae upright using optistruct 2010010396 formula sae is a very competitive event in which collegiate engineering teams design, build, and race openwheeled vehicles. It is a mathematical technique that produces an optimized design based on the responses for a structure within a given package space. Optimization is always based on underlying structural analysis, said uwe schramm, chief technical officer at altair. 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. Pdf modal frequency response optimization in optistruct. Joint elements support for a variety of situations advanced restart for nonlinear analysis continuum shells random response based fatigue optimization multimaterial topology optimization. The proposed paper presents the implementation of modal frequency response optimization in the commercial software optistruct 1. The company achieved a weight reduction of approximately 20 percent, using structural optimization techniques as an.
Student contest, hyperworks students education, optimisation contest, aoc 2012, altair optimisation contest. Student contest, hyperworks students education, optimisation contest, aoc 2012, altair. In part i of this tutorial a linear static analysis was carried out see category. Leading edge ribs, wing box ribs, optistruct, topology, size. Innovative engineering curricula and university design. Subsequent to the topology optimization phase, large scale sizing optimization studies can be run on the lattice beams while incorporating detailed performance targets such as stress, buckling, displacement and frequency. Topography optimization is an advanced form of shape optimization where the user defines a design region for a given part and optistruct generates a pattern of shape variable based reinforcements within that region. Setting up topology optimization load collectors, load steps responses, dconstraints, objectives, opti controls, control cards results in. Such matters have not been investigated in any greater detail. Me 305 introduction to finite elements in mechanical engineering optimization with optistruct a design concept for an automotive control arm required to meet performance specifications will be created in this tutorial. Setting up the optimization problem in hypermesh step 4.
Download download eigra optistruct manual read online read online eigra optistruct manual optistruct topology optimization tutorial optistruct user guide pdf optistruct 14 manual optistruct tutorials pdf optistruct user guide pdf hypermesh optistruct tutorial optistruct help optistruct reference guide pdf user guide to the optimization code optistruct by aleitacae in types. Topology optimization is performed with commercial software. 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. See it allows you to watch a video demonstration of the exercise covered in the section, while try it gives you a pdf and. Design optimization design domain topology optimization shape optimization.
Symmetry and draw direction applied simultaneously. See it allows you to watch a video demonstration of the exercise covered in the module. Do it provides a pdf of the exercise and a model so you to. 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. Inspire enables both simulation analysts and designers to perform whatif studies faster, easier, and above all earlier, encouraging collaboration and reducing product time to.
Topology optimization dtpl card design variable definition for topology optimization shells property with base and total thickness defines topology design space solids properties define topology design space composites pcomp properties define topology design space rod, bar, weld, bush properties. Application of topology, sizing and shape optimization. Nov 23, 2018 topology optimization optistruct duration. Optimization techniques are applied in the design of structures in order to obtain an efficient solution in terms of weight, cost or performance.
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. Optistruct generates an optimal design proposal based on a userdefined design space, performance targets, and manufacturing constraints. Optistruct tutorials mathematical optimization finite. Program of altair inc has made great strides in offering a variety of online learning tools for its optistruct and hyperstudy optimization modules. Topology optimization of a reduced model using dmig. Topology optimization of a formula sae upright using optistruct. Based on topology optimization a proposal for a beam layout in the. Many exercises are available in the modules that use the see it, try it methodology. Ply editing to define superplies hence optistruct only can subtract material and cannot thicken it, the first step of setting up a composite freesizeoptimization is the creation of socalled superplies, thus overthick layers. Topology optimization tutorial bracket altair university. Topology optimization of a control arm the purpose of this exercise is to determine the basic minimum information required to run a topology optimization exercise.
A basic knowledge of hypermesh is assumed when completing this tutorial. The purpose of this self paced course is to cover basic analysis types available when using optistruct for linear analysis. Jun 23, 2015 one such technology is the topology optimization functionality available in altair optistruct. Interpreting the results from the topology optimization is a di cult task and requires experience and knowledge of other aspects such as manufacturability. The finite element mesh containing designable blue and nondesignable regions yellow is shown in figure 1 below. The approach in topography optimization is similar the approach used in topology optimization except that it uses shape variables.
Topology optimization in abaqus with evolutionary algorithms. Design and optimization of lattice structures for 3d. Finite element analysis and topology optimization of lower. The topics discussed are new stress constraints for topology optimization, a fast contact algorithm, tape laying manufacturing for composites, fail safe topology optimization, and resultant forces and moments as design criteria.
My research issue will focus on the optimization of foams and lattice structures so i am also interested some optistruct tutorials. You can also simulate spatially dependent materials like composite parts, 3d printed. Topology optimization results sometimes give design which cannot be manufactured economically. Optimizationenabled structural analysis altair optistruct. Linear static analysis the objective of this topology optimization. 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. Catia and then imported into altair hypermesh and optistruct software for finite element model creation and linear analysis with optimization. By rahul ponginan on february 20, 2018 in part i of this tutorial a linear static analysis was carried out see category. Methodology for topology and shape optimization in the design. You will be able to do the same examples showed in the tutorial you will not need extra files. Request pdf topology optimization of a formula sae upright using optistruct formula sae is a very competitive event in which collegiate engineering teams design, build, and race openwheeled.
Leading edge ribs, wing box ribs, optistruct, topology, size and shape 1. Review and cite topology optimization protocol, troubleshooting and other methodology information contact experts in topology optimization to get answers. Introduction to optistruct for structural optimization. Topology optimization lets you specify where supports and loads are located on a volume of material and lets the software find the best shape. 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. But even before the altair partner alliance began, the organization was consolidating cae functionality within its optimization tool optistruct. Topology optimization can be applied to 1d, 2d, and 3d design spaces. Optistruct uses topology optimization to generate innovative concept design proposals. Optistruct user guide pdf download pdf manual free.
Design variables topology optimization optistruct user guide pdf. The purpose of this self paced course is to cover the basics of optistruct optimization. After topology optimization after shape optimization19% m 9. The objective of a sizing optimization is to find the optimal thickness or cross sectional distribution of a. Finite element analysis and topology optimization of lower arm of double wishbone suspensionusing radioss and optistruct vinayak kulkarni 1, anil jadhav2, p. The proposed paper presents the implementation of modal frequency response optimization in the commercial software optistruct1. Peter haensch, optimization specialist, eurocopter gmbh, germany. Coommpp oossi ittee oopp ttimmiizzaattiionn wwiithh oppt. Design optimizationstructural design optimization january 23, 2004 prof.
Optistruct has a unique solution to design such lattice structures that is based on topology optimization. Do it provides a pdf of the exercise and a model so you to perform the exercise on your own. The objective of the optimization is to maximize the stiffness of the. Topology optimization of a control arm with manufacturing constraints the purpose of this exercise is to. Design and optimization of lattice structures for 3d printing. Topology optimization reveals what the design wants to be, even before we have any cad for it. 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 of a hook with stress constraints. It is supported only for small displacement analysis, it is not supported for large displacement. Linear static analysis the objective of this topology optimization study is to minimize the compliance of the bracket based.
Learn step by step by doing simple and powerful examples. Altair optistruct is an industry proven, modern structural analysis solver for linear and nonlinear simulation. In this study, topology optimization of a vehicle front structure has been performed using optistruct by altair engineering. Hence, we look for a light weight design of the bracket. This video summarizes the latest features of optistruct 14. Development of a new vehicle front subframe using altair inspire topology optimization. Pdf practical aspects of structural optimization, a study guide. The control arm can be considered totally fixed for all load cases as follows. One such technology is the topology optimization functionality available in altair optistruct. Learn how to do topology optimizations with altair hyperworksoptistruct 11. Optistruct offers few such manufacturing constraints to apply for the base design and get an output. The modules use the see it, do it methodology to cover the setup, run, and postprocessing of the different analysis types. Born as a disruptive technology for topology optimization of structures, optistruct has matured into altairs structural analysis and optimization solver solution for.
Altair partner alliance the apa offers 3rd party technology alongside hyperworks products under one license. Learn how to do topology optimizations with altair hyperworks optistruct 11. Optistruct as solver for topology optimization part1 using. Hypermesh preprocessor radioss solver hyperview postprocesor what is topology optimization. Learn optistruct for optimization training webinars optimization is effectively used for conceptual design and fine tuning structural components. Click optistruct to run the optimization, exporting the. Hyperworks tutorials altair optistruct altair forum. This paper illustrates the effectiveness of these offerings by briefly. Pdf optistruct 2017 tutorials and examples gonzalo. Design concept for a structural cclip with minimum member size.
It is the most widely used solution for structural design and optimization in all industries. The course contains modules introducing the basic optimization types and giving an over of each. Learn optistruct for optimization training webinars. Part specifications constrain the resultant displacement of. Hyperworks topology optimization with stress constraints.
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