GENESIS Structural Optimization for ANSYS Mechanical

Transcription

1 P3 STRUCTURAL OPTIMIZATION (Vl. II) GENESIS Structural Optimizatin fr ANSYS Mechanical An Integrated Extensin that adds Structural Optimizatin t ANSYS Envirnment New Features and Enhancements Release GENESIS VERSION 16.0 Mar 2017

2 COPYRIGHT NOTICE Cpyright, by Vanderplaats Research & Develpment, Inc. All Rights Reserved, Wrldwide. N part f this manual may be reprduced, transmitted, transcribed, stred in a retrieval system, r translated int any human r cmputer language, in any frm r by any means, electrnic, mechanical, magnetic, ptical, chemical, manual, r therwise, withut the express written permissin f Vanderplaats Research & Develpment, Inc., 1767 Suth 8th Street, Suite 200, Clrad Springs, CO WARNING This sftware and manual are bth prtected by U.S. cpyright law (Title 17 United States Cde). Unauthrized reprductin and/r sales may result in imprisnment f up t ne year and fines f up t $10,000 (17 USC 506). Cpyright infringers may als be subject t civil liability. DISCLAIMER Vanderplaats Research & Develpment, Inc. makes n representatins r warranties with respect t the cntents heref and specifically disclaims any implied warranties f merchantability r fitness fr any particular purpse. Further, Vanderplaats Research & Develpment, Inc. reserves the right t revise this publicatin and t make changes frm time t time in the cntent heref withut bligatin f Vanderplaats Research & Develpment, Inc. t ntify any persn r rganizatin f such revisin r change. TRADEMARKS MENTIONED IN THIS MANUAL GENESIS, DOT and DOC are trademarks f Vanderplaats Research & Develpment, Inc. ANSYS is a registered trademark f ANSYS, Inc. Other prducts mentined in this manual are trademarks f their respective develpers r manufacturers. P3 STRUCTURAL OPTIMIZATION (Vl. II)

3 Cntents New Features Intrductin Executive Summary Structural Optimizatin Enhancement Tplgy Optimizatin Enhancement External Eigenvalue Slver Standalne ESL fr ANSYS Supprt fr ANSYS RSM Supprt fr ANSYS Superelement Using Updated External Thermal Lad (ETL) New Examples GENESIS Structural Optimizatin fr ANSYS MechanicalMar

4 1 Intrductin GENESIS Structural Optimizatin fr ANSYS Mechanical (GSAM) is an integrated extensin that adds structural ptimizatin t the ANSYS envirnment. The extensin prvides an easy-t-use interface which allws the user t setup Structural ptimizatin prblems, pst-prcess them and exprt the ptimizatin results within the ANSYS envirnment. GSAM is a super set f GTAM (GENESIS Tplgy Optimizatin fr ANSYS Mechanical). GSAM can perfrm any functin that GTAM des. The extra functinality is t perfrm tpgraphy, freefrm, sizing and tpmetry design. This dcument cvers the new features and enhancements added t GSAM/GTAM versin 16.0, which matches the versin f GENESIS engine. Please nte that GSAM/GTAM versin 16.0 des nt wrk with versins f GENESIS that are lder than Mar 2017 GENESIS Structural Optimizatin fr ANSYS

5 2 Executive Summary The key new features and enhancements include the fllwing: New Features Tplgy Optimizatin fr Heat Transfer Analysis: Heat transfer analysis nw is supprted fr tplgy ptimizatin. Temperature respnse can be used fr tplgy ptimizatin with heat transfer analysis. An additinal new respnse, Heat Transfer Cmpliance (HTC), is added fr heat transfer lad case. New Fabricatin Cnstraints fr Tplgy: New n-hle ptin is added fr filling fabricatin cnstraints. This new ptin will nt create thrugh hles fr filling. External Eigenvalue Slver (EES): Nw it is pssible t use ANSYS as external eigenvalue slver during ptimizatin fr Mdal, Harmnic, r Randm Vibratins. Standalne ESL fr ANSYS: Optimizatin based n ESL methd fr ANSYS nw can be run directly frm cmmand line instead f within ANSYS Mechanical. RSM Supprt fr ESL based Optimizatin: ESL based ptimizatin is supprted fr ANSYS Remte Slve Manager (RSM). RSM Supprt fr EES based Optimizatin: EES based ptimizatin is supprted fr ANSYS Remte Slve Manager (RSM). Supprt fr ANSYS Superelement: ANSYS superelement is nw supprted in GSAM/GTAM. Using Updated External Thermal Lad (ETL): The user can nw use ANSYS thermal analysis t cmpute the updated Imprted Bdy Temperature fr ptimizatin f thermal-mechanical cupled systems Updated DOT Optimizer: GENESIS nw uses DOT 7.2 which is the latest versin f the DOT ptimizer. GENESIS Structural Optimizatin fr ANSYS MechanicalMar

6 3 Structural Optimizatin Enhancement 1. Tplgy Optimizatin fr Heat Transfer Analysis: Heat transfer analysis nw is supprted fr tplgy ptimizatin. Temperature respnse can be used fr tplgy ptimizatin with heat transfer analysis. An additinal new respnse, Heat Transfer Cmpliance (HTC), is added fr heat transfer lad case. 2. Heat Transfer Cmpliance Respnse: In thermal lad case, the heat transfer 1 cmpliance (HTC) is defined as HTC = -- { T} T { F}, where {T} is the vectr f grid 2 temperatures, and {F} is the vectr f applied heat fluxes. When HTC is minimized, temperature at grids where heat fluxes are applied is minimized. 3. Strain Respnse: Strain respnse are nw available thrugh GSAM/GTAM interface. 4. Grid Stress: Grid stress and dynamic grid stress are nw available thrugh GSAM/GTAM interface. 5. Updated DOT: The latest versin f the DOT ptimizer, 7.2, is nw available with GENESIS. 4 Mar 2017 GENESIS Structural Optimizatin fr ANSYS

7 4 Tplgy Optimizatin Enhancement 1. N Hle Optin fr Filling: A new ptin is added fr filling fabricatin cnstraints. With n hle ptin, tplgy design will nt create thrugh hles. N hle ptin is available fr filling frm general plane (FGX, FGY, FGZ), filling frm tp (FTX, FTY, FTZ), and filling frm bttm (FBX, FBY, FBZ). GENESIS Structural Optimizatin fr ANSYS MechanicalMar

8 5 External Eigenvalue Slver Instead f using GENESIS eigenvalue slver fr frequency calculatin, the user can nw use ANSYS eigenvalue slver as the slutin methd. At each design cycle, GENESIS will call the External Eigenvalue Slver (ANSYS in this case) t slve the eigenvalue prblem, while GENESIS is used fr ptimizing the structure. The user can use EES t slve ptimizatin fr Mdal, Harmnic, r Randm Vibratins. 6 Mar 2017 GENESIS Structural Optimizatin fr ANSYS

9 6 Standalne ESL fr ANSYS New Features Instead f slving the ESL based ptimizatin within ANSYS envirnment, the user can exprt the necessary files and run ESL fr ANSYS as a standalne prgram. The user als needs t set envirnment variables pinting t the GENESIS executable lcatin and ESL fr ANSYS install lcatin n the machine where the ptimizatin will be perfrmed. The details are explained in the Users Manual. GENESIS Structural Optimizatin fr ANSYS MechanicalMar

10 7 Supprt fr ANSYS RSM In previus versins, ANSYS RSM is nly supprted fr ptimizatin using GENESIS slver nly. In this new versin, the user can run ptimizatin based n ESL methd r EES methd which requires bth GENESIS and ANSYS thrugh RSM tls. The user needs t set envirnment variable called VRAND_ESLANSYS_INSTALL n the RSM server machine. This envirnment variable shuld pint t the lcatin f eslansys flder which cmes with the extensin installatin. 8 Mar 2017 GENESIS Structural Optimizatin fr ANSYS

11 8 Supprt fr ANSYS Superelement New Features Substructuring is a prcedure that cndenses a grup f finite elements int ne element represented as a matrix. This matrix is called superelement. In GSAM/GTAM, the user can use superelement generated by ANSYS in a GENESIS analysis r ptimizatin. Typically, the user can reduce the nn-designable regin as superelement. With GSAM/GTAM extensin, the prcedures fr utilizing ANSYS superelement is differentiated in tw cases based n if the reduced part/bdy is part f the ANSYS Mechanical mdel. The details abut hw t setup a GENESIS simulatin using ANSYS superelement is described in Users Manual. GENESIS Structural Optimizatin fr ANSYS MechanicalMar

12 9 Using Updated External Thermal Lad (ETL) In case f thermal-mechanical cupled systems, instead f using GENESIS fr thermal analysis, the user can nw use ANSYS thermal analysis t cmpute the updated Imprted Bdy Temperature fr static system. The ptimizatin will be perfrmed fr the static system using GENESIS. 10 Mar 2017 GENESIS Structural Optimizatin fr ANSYS

13 10 New Examples File Name Prblem Title Special Features Figure ATP019 Tplgy Optimizatin with Strain Cnstraints Define strain cnstraints ATP020 Tplgy Optimizatin fr Heat Transfer Define Temperature as Objective ATP021 Tplgy Optimizatin fr Thermal- Mechanical Applicatins Optimize fr Temperature and Stiffness ATP022 Tplgy Optimizatin with Heat Transfer Cmpliance Define Heat Transfer Cmpliance as Objective GENESIS Structural Optimizatin fr ANSYS MechanicalMar

14 ATP023 Tplgy Filling Fabricatin Cnstraints: Allw thrugh hles r N Hles Filling Fabricatin Cnstraints: Allw thrugh Hles r N Hles ATP024 Tplgy Optimizatin with Internal Heat Generatin Thermal tplgy parameter fr Internal Heat Generatin EES001 Freefrm Optimizatin with External Eigenvalue Slver Optimizatin with External Eigenvalue Slver (EES) EES002 Tplgy Optimizatin with Prestressed Mdal Analysis Optimizatin with External Eigenvalue Slver (EES) fr prestressed mdal analysis AAT001 Use ANSYS Superelement: the Part/bdy Reduced as Superelement is Part f the ANSYS Mechanical Mdel Steps t use ANSYS superelement in GENESIS 12 Mar 2017 GENESIS Structural Optimizatin fr ANSYS

15 AAT002 Use ANSYS Superelement: the Part/bdy Reduced as Superelement is NOT Part f the ANSYS Mechanical Mdel Steps t use ANSYS superelement in GENESIS ETL001 Tplgy Optimizatin with Imprted Thermal Lad Define ETL fr using imprted lad frm transient thermal analysis GENESIS Structural Optimizatin fr ANSYS MechanicalMar