md nastran 2011 & msc nastran 2011 release guide

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MD Nastran 2011 & MSC Nastran 2011Release GuideMain IndexWorldwide Webwww.mscsoftware.comDisclaimerMSC.Software Corporation reserves the right to make changes in specifications and other information contained in this document without prior notice.The concepts, methods, and examples presented in this text are for illustrative and educational purposes only, and are not intended to be exhaustive or to apply to any particular engineering problem or design. MSC.Software Corporation assumes no liability or responsibility to any person or company for direct or indirect damages resulting from the use of any information contained herein.User Documentation: Copyright 2011 MSC.Software Corporation. Printed in U.S.A. All Rights Reserved.This notice shall be marked on any reproduction of this documentation, in whole or in part. Any reproduction or distribution of this document, in whole or in part, without the prior written consent of MSC.Software Corporation is prohibited.This software may contain certain third-party software that is protected by copyright and licensed from MSC.Software suppliers. PCGLSS 6.0, Copyright 1992-2005, Computational Applications and System Integration Inc. All rights reserved. PCGLSS 6.0 is licensed from Computational Applications and System Integration Inc. METIS is copyrighted by the regents of the University of Minnesota. A copy of the METIS product documentation is included with this installation. Please see A Fast and High Quality Multilevel Scheme for Partitioning Irregular Graphs. George Karypis and Vipin Kumar. SIAM Journal on Scientific Computing, Vol. 20, No. 1, pp. 359-392, 1999. MSC, MD, Dytran, Marc, MSC Nastran, MD Nastran, Patran, MD Patran, the MSC.Software corporate logo, OpenFSI and Simulating Reality are trademarks or registered trademarks of the MSC.Software Corporation in the United States and/or other countries.NASTRAN is a registered trademark of NASA. LS-DYNA is a trademark or registered trademark of Livermore Software Technology Corporation. All other trademarks are the property of their respective owners.Revision 0. April 26, 2011MDNA:2011:Z:Z:Z:DC-RELCorporateMSC.Software Corporation2 MacArthur PlaceSanta Ana, CA 92707Telephone: (800) 345-2078FAX: (714) 784-4056EuropeMSC.Software GmbHAm Moosfeld 1381829 MunichGERMANYTelephone: (49) (89) 43 19 87 0Fax: (49) (89) 43 61 71 6Asia PacificMSC.Software Japan Ltd.Shinjuku First West 8F23-7 Nishi Shinjuku1-Chome, Shinjuku-Ku Tokyo 160-0023, JAPANTelephone: 0120-924-832 (toll free, Japan only)Mobile phone: 03-6911-1222Fax: (81) (3)-6911-1201Main IndexCont ent sMD Nastran & MSC Nastran 2011 Release Guide Table of ContentsPreface to the MD Nastran 2011 Release Guide viList of Books viiTechnical Support viiiInternet Resources ix1 Overview of MD & MSC Nastran 2011Overview 22 Advanced Nonlinear (SOL 400)Nonlinear Inertia Relief with Contact (SOL 400) 63 Numerical Methods and High Performance ComputingACMS 12Enhanced Math Kernel Library 15Automatic SMEM Allocation 18Thermal Performance Enhancements in SOL 400 214 OptimizationExternal Optimization via OpenMDOTM 32User Defined OpenMDOTM External Optimizer Service 435 AeroelasticityImprovements in Splining 48MD Nastran 2011 Release GuideMain IndexMD Nastran & MSC Nastran 2011 Release Guide iv6 ElementsRotordynamics Enhancements 54Main IndexMD Nastran Release Guide PrefacePrefacePreface to the MD Nastran 2011 Release GuideList of BooksTechnical SupportInternet ResourcesMain IndexMD Nastran 2011 Release GuidePreface to the MD Nastran 2011 Release GuideviPreface to the MD Nastran 2011 Release GuideThis Release Guide contains descriptions for the MD Nastran 2011 version, and supersedes the MD Nastran 2010 Release Guide.Main IndexviiPrefaceList of BooksBelow is a list of some of the Nastran documents. You may find any of these documents from MSC.Software at www.simcompanion.mscsoftware.com.Installation and Release Guides Installation and Operations Guide Release GuideGuidesReference Books Quick Reference Guide DMAP Programmers Guide Reference ManualUsers Guides Getting Started Linear Static Analysis Dynamic Analysis MD Demonstration Problems Thermal Analysis Superelements Design Sensitivity and Optimization Implicit Nonlinear (SOL 600) Explicit Nonlinear (SOL 700) Aeroelastic Analysis User Defined Services EFEA Users Guide EFEA Tutorial EBEA Users GuideMain IndexMD Nastran 2011 Release GuideTechnical SupportviiiTechnical SupportFor technical support phone numbers and contact information, please visit: http://www.mscsoftware.com/Contents/Services/Technical-Support/Contact-Technical-Support.aspxSupport Center (http://simcompanion.mscsoftware.com)Support Online. The Support Center provides technical articles, frequently asked questions and documentation from a single location.Main IndexixPrefaceInternet ResourcesMSC.Software (www.mscsoftware.com)MSC.Software corporate site with information on the latest events, products and services for the CAD/CAE/CAM marketplace.Main IndexMD Nastran 2011 Release GuideInternet ResourcesxMain IndexChapter 1: Overview of MD & MSC Nastran 2011 MD Nastran & MSC Nastran Release Guide1Overview of MD & MSC Nastran 2011OverviewMain IndexMD Nastran & MSC Nastran 2011 Release GuideOverview2OverviewMSC.Software is pleased to introduce you to the exciting new technologies in MD Nastran 2011 & MSC Nastran 2011, the premier and trusted CAE solution for aerospace, automotive, defense, and manufacturing industries worldwide. This release includes new features and enhancements in Nonlinear Inertia Relief with Contact, Numerical Methods and High Performance Computing, Optimization using OpenMDO, Splining Improvements, and enhancements in Rotordynamics. IFPStarStarting with the MD Nastran 2011 and MSC Nastran 2011 releases, IFPStar will be the default input file processor for Nastran. The IFPStar component provides more accurate verification of input files and their conformance with the QRG. It also provides enhanced error messages, as well as a complete list of the bulk data entries used in your model in the input file summary section.Advanced Nonlinear (SOL 400) Nonlinear Inertia Relief with Contact (SOL 400) (Ch. 2).More information can be found in Advanced Nonlinear (SOL 400) (Ch. 2).Numerical Methods and High Performance Computing (Performance) ACMS (Ch. 3) Enhanced Math Kernel Library (Ch. 3) Automatic SMEM Allocation (Ch. 3) Thermal Performance Enhancements in SOL 400 (Ch. 3)More information can be found in Numerical Methods and High Performance Computing (Ch. 3).Optimization External Optimization via OpenMDOTM (Ch. 4) User Defined OpenMDOTM External Optimizer Service (Ch. 4)More information on these optimization enhancements can be found in Optimization (Ch. 4).Aeroelastic Enhancements Improvements in Splining (Ch. 5)More information on these aeroelastic enhancements can be found in Aeroelasticity (Ch. 5).Main Index3CHAPTER 1ContentsElements Rotordynamics Enhancements (Ch. 6).More information can be found in Elements (Ch. 6).Future Platform SupportMD Nastran and MSC Nastran will no longer be delivered on the SGI IRIX platform; MSC Nastran 2010 is available on SGI IRIX. The Linux 32 bit platform will be discontinued starting in the year 2012.Main IndexMD Nastran & MSC Nastran 2011 Release GuideOverview4Main IndexChapter 2: Advanced Nonlinear (SOL 400) MD Nastran R3 Release Guide 2Advanced Nonlinear (SOL 400)Nonlinear Inertia Relief with Contact (SOL 400)Main IndexMD Nastran 2011 Release Guide Nonlinear Inertia Relief with Contact (SOL 400)6Nonlinear Inertia Relief with Contact (SOL 400)IntroductionInertia relief is a technique to simulate self-equilibrating quasi dynamic loading in static analyses. It is now available in MD Nastran for SOL400 with nonlinear material and contact analysis but under the restriction of small displacement/rotations (PARAM,LGDISP=-1). BenefitsThe following feature is included in MD Nastran SOL 400. Support inertial relief capability in SOL 400 with nonlinear material and contact analysis. TheoryCase Control Parameter IRLOAD=QLIN causes a self-equilibrating quasi dynamic loading to occur. User InputsThe Case Control Command, IRLOAD, will activate this capability for SOL 400. It is only available to SOL 400 and will be ignored in other solution sequences.Selects nonlinear inertia relief set for SOL 400Format: Example:IRLOAD=QLINEARIRLOADNonlinear Inertia Relief Selection (SOL 400 only)Field ContentsQLINEAR Inertia Load Calculation with small displacement (Quasi-Linear) is activated in SOL 400.NONE No Inertia Relief (Default)IRLOAD=QLINEARNONE ) ` Main Index7CHAPTER 2Advanced Nonlinear (SOL 400)Remark:1. This command is active only in SOL 400 and its use requires a set of STATIC supports that constrain all six rigid body motions.2. IRLOAD=QLINEAR, which has to be applied above to all SUBCASES, is a global case control command and activates the inertia load calculations in SOL 400 for all applied static loads. In nonlinear static analyses (ANALYSIS=NLSTAT), it also activates the inertia relief analysis with small displacement. When IRLOAD=QLINEAR with large displacement (PARAM,LGDISP -1), a fatal error message will be issued. Also superelements in conjunction with IRLOAD=QLINEAR will cause a fatal error.IRLOAD=NONE (default) deactivates the inertia load calculations.3. IRLOAD=QLINEAR is ignored by perturbation analyses in SOL 400.OutputsStandard Nastran outputs.Guidelines and LimitationsThe guidelines and limitations can be considered in the following two groups:1. From the general view point of Nonlinear Inertia Relief in SOL 400a. The current implementation is restricted to the requirement that all six rigid body motions be constrained. Thus no mechanisms or symmetry boundaries are allowed. b. This approach is only valid for models whose geometry does not change during loading, such as SOL 400 with LGDISP=-1 (Default). c. The Inertia Relief analysis d