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. Rail domains after the circular edge have been split step 7. Pdf thermal topology optimization in optistruct software. Topology optimization results sometimes give design which cannot be manufactured economically. E merge develops reporting tools and systems that standardize and automate the compliance reporting. Leveraging optistructs technology was able to take quick and reliable design directions on the track rod lever. 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. An initial structure is created based on the interspaces left by the layout of accessories,and multiple static and modal analyses are carried out in order to obtain basic stiffness and modal information. Generate a new mesh for fe reanalysis using ossmooth 1. Balancing of wheel suspension packaging, performance and weight 11 3. They provide product design and engineering solutions, enterprise services and cloud computing.
A composite material is a material that is formed by combining two or more materials on a. This workshop introduce altair full frequency and multiphysics solutions for solving the most pressing problems in the nvh field. Define an upper bound constraint on the disp response for the brake loadcase of 0. Topology optimization using solid isotropic material. In this tutorial, the values of a bead width of 15mm, a bead height of 5mm, and draw angle of 85 degrees will be used. This allows the boundaries of the internal holes to move and merge with each other. Optimization is always based on underlying structural analysis, said uwe schramm, chief technical officer at altair. The new acrobat features faster operations, smaller pdfs, a new interface, and the ability to combine different types of files into one pdf. 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. The factor of safety for the three load cases were 1. 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. It enhances the concept development process by enabling simulationdriven design to increase your products efficiency, strength and manufacturability.
Wollschlager, jacob fish, harold thomas altair engineering roger asaker, pierrepaul jeunechamps, guillaume boisot, jeansebastien gerard exstream engineering frank abdi, mohit garg alphastar, inc. 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. Handling multiobjective optimization problems with hyperstudy. 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. The method is based on a stiffness matching approach. Methodology for topology and shape optimization in the. Simultaneous multiscale optimization of macro and micro structures twophase optimization process topology with porosity to drive material distribution sizing optimization of lattice cell members including detailed constraints like stress and local buckling. Topology optimization and 3d printing is an example of this convergence, which can combine for amazing material savings. Ive been trying to run some topography optimization on a structural part. Youve come to the right place, but not at the right time. A multilevel highperformance software approach to engineering optimization, ranging from sizing to shape and topology aspect, developed by optistructure. Topography optimization is a special class of shape optimization, which can be used to change shapes of shell structures by introducing stamped beads for a better structural performance. For nonlinear problems the derivation involves multiple techniques such as.
It is the marketleading solution for structural design and optimization. Getting started with hyperworks, import, export, open, save, working with panels, rotate, zoom, pan. Optimization techniques are very important in many fields of engineering, such as aerospace, mechanical and naval. Structural optimization using optistruct concepts, analysis, and optimization for. Modeling lare deformations phenomenon with altair optistruct. Topography optimization by prakash pagadala what is topography optimization. In the topology panel under the optimization section of the analysis page, under desvar, enter the name design.
Define a topology design variable for the design region 1. Application to a rear lower control arm acknowledgements first of all i want to thank my supervisor iris blume for her support and helpfulness with the thesis work. Usually the second job will be queued when optistruct is running a job. He also claims that optistruct will be quite fast when compared to many pure analysis codes. Altairs hyperstudy provides a number of algorithms sqp, arsm, mfd, ga, sora to cover a wide range of optimization problems. Qsd is a threestep optimization method intended to propose efficient designs with a reduced computational cost. The integration of composite constituentlevel failure. Additive manufacturing enables fabrication of complex lattice cell structures that are not manufacturable using conventional methods. Catia and then imported into altair hypermesh and optistruct software for finite. Im applying a simple static downward force on a node and i set the v. From the analysis page, click on the optimization panel.
Online optistruct for nonlinear analysis nonlinear static and quasistatic analysis. Using altair optistruct, germanybased claas was able to significantly reduce. In order to achieve this, the availablea design space for the biw must be generated as a solid fe model. Composite optimization of a skateboard using altair hypermesh. Optistruct for optimization topography part 2 youtube. Optistruct is an industry proven, modern structural analysis solver for linear and nonlinear structural problems under static and dynamic loadings. This course covers both the theoretical extensions of nonlinear static assumptions to include nonlinear behavior as well as the. Stress constrained shape and topology optimization with fixed mesh. People of optistruct have worked as key researchers in a large number of research projects funded by eu. Compare the mass of the initial structure and that of the optimized structure in hypermesh. In the hypermesh desktop client, enter the ossmooth panel from the post page.
Optimization of an engine accessory bracket is conducted by using the method offered by the optistruct software. Topology optimization of multiple load case structures. With this tool, you can upload and optimize multiple files at the same time batch processing. Optistruct offers few such manufacturing constraints to apply for the base design and get an output. When to use 2 d elements, family of 2 d elements, how not to mesh, quality checks of 2d elements. Learn how to use pdf optimization tools to remove redundancies, subset and outline fonts, and compress text and images for faster downloads. Topology optimization of a hook with stress constraints. Symmetry of the bead pattern should be forced along the symmetry line of the design space.
Random restarts in old com merge solids together, wit system error sign car windshiled wiper syste direction of bearing load. Optimize pdf files tips on pdf optimization to compress. Simply supported beam bending exercise using hyperbeam. Anglani department of engineering innovation, lecce university, italy abstract structural optimization techniques are a wellknown approach for improving product performances. The control arm can be considered totally fixed for all load cases as follows. At jaguar a process has been developed to rapidly create this design space.
Based on topology optimization a proposal for a beam layout in the front structure area has been identified. Pdf optistruct optimization gonzalo anzaldo munoz academia. Methodology for topology and shape optimization in the design process master s thesis in the master s programme solid and fluid mechanics anton olason. The main objective of this paper is to combine topology optimization and. Introduction to santos pro concepts, conventions, and techniques. Chapter 4 covers the optimization process and the tutorial ends with. This course covers both the theoretical extensions of nonlinear static assumptions to include nonlinear behavior as well as. The integration of composite constituentlevel failure models during composite size optimization robert n.
Define an upper bound constraint on the disp response for the pothole loadcase of 0. Optimization capability altair optistruct is an industry proven, modern structural analysis solver for linear and nonlinear simulation under static and dynamic loadings. Multiobjective optimization design of control arm using. E merge engineers have developed an intimate understanding of what each element of data represents and how to combine the data into a single version of the truth that creates a clear picture of operational metrics. It is the most widely used solution for structural design and optimization in all industries. It will provide an overview of altairs solutions designed to facilitate the best in class nvh design process, coupled with realtime demonstrations of key product features. Design interpretation optimization exercises hyperworks 14.
Access the mesh panel on the menu bar, click meshcreate2d automesh 2. Mdo director introduction to altairs multidisciplinary optimization. Pdf this paper presents an overview of the recently implemented thermal topology optimization capabilities in altair optistruct software. Free this is an introductory course for using optistruct to solve nonlinear problems. Finally, for the optimization go to analysis optistruct save the file first and then click on optistruct d. Topology optimization is performed with commercial software. Stressbased shape and topology optimization with the level set method. Topology optimization of a formula sae upright using.
I used solidthinking inspire and optistruct to perform optimization. Altair was founded by james r scapa, george christ, and mark kistner in 1985. A bspline nite cell method combined with level set function. Select surfs displayed for element size, specify 2set the mesh type. Problems in these fields are often function of several variables and optimization should be carried out for each of them in order to achieve global minima. Pdf practical aspects of structural optimization, a study guide. Using altair optistruct, india based ashok leyland was able to reduce cost and improve reliability of the components in their stride towards design an development of innovative, optimal and robust design solutions. Optistruct by altair altair optistruct optistruct is an industry proven, modern structural analysis solver solve for linear and nonlinear structural problems under static and dynamic loadings marketleading solution for structural design and optimization helps designers and engineers to analyze and optimize structures. Resources and more information on altair optistruct. But even before the altair partner alliance began, the organization was consolidating cae functionality within its optimization tool optistruct.
Study on optimization of engine accessory bracket based on. Genesis topology for ansys mechanical february 2015 users manual 3 1. Its advanced optimization engine allows users to combine topology, topography, size and shape optimization methods to create better and more alternative design proposals leading. Using optistruct topology optimization, the optimum material configuration of the biw within the packaging space vailable can be determined.
Run multiple jobs simultaneously in optistruct altair. Optistruct for structural analysis schramm reports that some of altairs customers have replaced their traditional cae tools with optistruct. Optimization techniques are applied in the design of structures in order to obtain an efficient solution in terms of weight, cost or performance. Automated lattice optimization of hinge fitting with. In size optimization, the properties of structural elements such as shell thickness, beam crosssectional properties, spring stiffness, and mass are modified to solve the. Optimization with optistruct direct learning webinar series 2016 duration. Pdf modal frequency response optimization in optistruct. The approach in topography optimization is similar the approach used in topology optimization except that it uses shape variables. Topology optimization in optistruct is a mathematical technique that. 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. Optistruct nonlinear analysis online nonlinear static and quasistatic analysis. Design optimization application in accordance with product and process requirements a. Topography optimization with optistruct error altair. The objective of a sizing optimization is to find the optimal thickness or cross sectional distribution of a.
Optistruct starts second job after the completion of the first one. Design optimization application in accordance with product. Pdf optimizer will not change the resolution of your files. In order to run two or more jobs simultaneously, increase the maximum number of jobs in. Topology and topography adapts a similar concept, except the variables re given by the. This page lets you optimize and compress pdf files to decrease file size, e. Size optimization optistruct has the capability of performing size optimization.
Many made this choice to take advantage of both its fea and optimization capabilities. Stressbased shape and topology optimization with the. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. Size optimization can be performed simultaneously with the other types of optimization.
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