OptiStruct 12.0 User Guide

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  • OptiStruct 12.0 User's Guide

  • Altair Engineering Support Contact Information Web site www.altairhyperworks.com

    Location Telephone e-mail

    Australia 61.3.9016.9042 anzsupport@altair.com

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    China 86.21.6117.1666 support@altair.com.cn

    France 33.1.4133.0992 francesupport@altair.com

    Germany 49.7031.6208.22 hwsupport@altair.de

    India 91.80. 6629.4500 1.800.425.0234 (toll free)

    support@india.altair.com

    Italy 39.800.905.595 support@altairengineering.it

    Japan 81.3.5396.2881 support@altairjp.co.jp

    Korea 82.70.4050.9200 support@altair.co.kr

    Mexico 55.56.58.68.08 mx-support@altair.com

    New Zealand 64.9.413.7981 anzsupport@altair.com

    North America 248.614.2425 hwsupport@altair.com

    Scandinavia 46.46.286.2052 support@altair.se

    United Kingdom 01926.468.600 support@uk.altair.com

    In addition, the following countries have resellers for Altair Engineering: Colombia, Czech Republic, Ecuador, Israel, Russia, Netherlands, Turkey, Poland, Singapore, Vietnam, Indonesia

    Official offices with resellers: Canada, China, France, Germany, India, Malaysia, Italy, Japan, Korea, Spain, Taiwan, United Kingdom, USA

    Copyright Altair Engineering Inc. All Rights Reserved for: HyperMesh 1990-2013; HyperCrash 2001-2013; OptiStruct 1996-2013; RADIOSS1986-2013; HyperView1999-2013; HyperView Player 2001-2013; HyperStudy 1999-2013; HyperGraph1995-2013; MotionView 1993-2013; MotionSolve 2002-2013; HyperForm 1998-2013; HyperXtrude 1999-2013; Process Manager 2003-2013; Templex 1990-2013; MediaView 1999-2013; BatchMesher 2003-2013; TextView 1996-2013; HyperMath 2007-2013; ScriptView 2007-2013; Manufacturing Solutions 2005-2013; HyperWeld 2009-2013; HyperMold 2009-2013; solidThinking 1993-2013; solidThinking Inspire 2009-2013; solidThinking Evolve 1993-2013; Durability Director 2009-2013; Suspension Director 2009-2013; AcuSolve 1997-2013; and AcuConsole 2006-2013.

    In addition to HyperWorks trademarks noted above, GridWorks, PBS GridWorks, PBS Professional, PBS, PBS Works and Portable Batch System are trademarks of ALTAIR ENGINEERING INC. All are protected under U.S. and international laws and treaties. Copyright 1994-2013.

    Additionally, the Altair software is protected under patent #6,859,792 and other patents pending. All other marks are the property of their respective owners.

    ALTAIR ENGINEERING INC. Proprietary and Confidential. Contains Trade Secret Information. Not for use or disclosure outside of ALTAIR and its licensed clients. Information contained in HyperWorks shall not be decompiled, disassembled, or unlocked, reverse translated, reverse engineered, or publicly displayed or publicly performed in any manner. Usage of the software is only as explicitly permitted in the end user software license agreement.

    Copyright notice does not imply publication.

  • OptiStruct 12.0 User's Guide iAltair Engineering

    Proprietary Information of Altair Engineering

    OptiStruct 12.0 User's Guide

    ........................................................................................................................................... 1What is Altair OptiStruct?

    ............................................................................................................................................... 3Enhancing the Design Process

    ............................................................................................................................................... 7Capabilities

    ............................................................................................................................................... 9Features

    ............................................................................................................................................... 15Formats

    ............................................................................................................................................... 17Platforms

    ............................................................................................................................................... 19Running OptiStruct

    ................................................................................................................................... 23Run Options for OptiStruct

    ................................................................................................................................... 36OptiStruct GPU

    ................................................................................................................................... 38OptiStruct SPMD

    ................................................................................................................................... 53HWSolver Configuration File

    ................................................................................................................................... 58Expanded Error Message File

    ................................................................................................................................... 59Memory Limitations

    ................................................................................................................................... 62Restarting OptiStruct

    ................................................................................................................................... 63OptiStruct Compression Run

    ............................................................................................................................................... 65Design Optimization

    ................................................................................................................................... 66Optimization Problem

    ................................................................................................................................... 70Responses

    ................................................................................................................................... 89Topology Optimization

    ................................................................................................................................... 106Free-size Optimization

    ................................................................................................................................... 120Topography Optimization

    ................................................................................................................................... 124Size Optimization

    ................................................................................................................................... 126Shape Optimization

    ................................................................................................................................... 128Free-shape Optimization

    ................................................................................................................................... 148Manufacturing Constraints

    ................................................................................................................................... 216Optimization of Arbitrary Beam Sections

    ................................................................................................................................... 218Optimization of Composite Structures

    ................................................................................................................................... 230Equivalent Static Load Method (ESLM)

    ................................................................................................................................... 245Gradient-based Optimization Method

    ................................................................................................................................... 256Global Search Option

    ............................................................................................................................................... 259Design Interpretation - OSSmooth

    ................................................................................................................................... 262OSSmooth Parameter File

    ................................................................................................................................... 268Running OSSmooth

    ................................................................................................................................... 269Interpretation of Topology Optimization Results

    ................................................................................................................................... 271Laplacian Smoothing

    ................................................................................................................................... 273Interpretation of Topography Optimization Results

  • OptiStruct 12.0 User's Guideii Altair Engineering

    Proprietary Information of Altair Engineering

    ................................................................................................................................... 275Shape Optimization Results, Surface Reduction and Surface Smoothing

    ................................................................................................................................... 276FEA Topology for Reanalysis

    ................................................................................................................................... 278FEA Topography for Reanalysis

    ............................................................................................................................................... 281Examples

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