Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.     RADIOSS Version 11.0 for ...
Linear                Statics, Dynamics, Buckling,           Thermal, Plasticity, Quasi-static, Contact                 No...
Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.   HyperWorks for Analysis and...
Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.   What’s New in RADIOSS 11.0 ...
Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.     Platform Support     •   ...
Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.   What’s New in RADIOSS 11.0 ...
Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.     Performance     •        ...
Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.   What’s New in RADIOSS 11.0 ...
Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.     RADIOSS 11.0 Solutions   ...
Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.     Small Displacement Non-Li...
Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.     Large Displacement Non-Li...
Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.     Non-Linear Implicit Trans...
Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.     Non-Linear Explicit Trans...
Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.   What’s New in RADIOSS 11.0 ...
Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.     Solver Integration with C...
Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.   What’s New in RADIOSS 11.0 ...
Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.     Multi-Body Dynamics     R...
Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.     Motion Solve Integration ...
Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.     Multi-Body Dynamics: Bulk...
Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.      Flexbody and CMS Super E...
Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.   What’s New in RADIOSS 11.0 ...
Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.     Complex Eigenvalue Analys...
Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.   What’s New in RADIOSS 11.0 ...
Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.     Response Spectrum Analysi...
Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.   What’s New in RADIOSS 11.0 ...
Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.     Pre-Loaded Analysis     P...
Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.     Frequency Response       ...
Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.     NVH Acoustic Loads and Da...
Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.     Super Element Generation ...
Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.     NVH/Acoustics Advanced Fe...
Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.     NVH/Acoustics Results    ...
Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.     NVH/Acoustics Output     ...
Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.     PowerFlow Analysis       ...
Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.   Conclusion                 ...
Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.     RADIOSS: The Power of One...
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Radioss version 11.0

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Radioss version 11.0

  1. 1. Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved. RADIOSS Version 11.0 for Linear and Non-linear Analysis Altair Engineering – January 2011 Greg Harte – Program Manager Harold Thomas – Director of Solver Technology
  2. 2. Linear Statics, Dynamics, Buckling, Thermal, Plasticity, Quasi-static, Contact Non-Linear (Implicit) Quasi-static, Dynamics, The Power of ONE Post-buckling, Materials, Contact Non-Linear (Explicit) Impact, Thermal, Materials, Contact Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved. Thermal and CFD Fluid Structure Interaction (FSI), Thermal Stress, MultibodyRADIOSS Multi-Body Dynamics (Rigid & Flexible Bodies) Kinematics, Static and Dynamic, Quasi-static RADIOSS is a Complete Finite Element Solution
  3. 3. Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved. HyperWorks for Analysis and Optimization RADIOSS the HyperWorks Solver Pre-Post 1-D Systems, Fatigue, Ergonomics, Industrial Non-Linear Non-Linear Thermal and Multi-Body Design, Injection Molding, Linear Dynamics Noise and Vibration (NVH), (Implicit) (Explicit) CFD Composite Materials, Electromagnetics RADIOSS - RADIOSS - Partner Alliance RADIOSS AcuSolve MotionSolve Solutions Optimization – OptiStruct and HyperStudy Data and Process Management
  4. 4. Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved. What’s New in RADIOSS 11.0 Platform Support Performance Solutions Solver Integration Multibody Dynamics Complex Eigenvalue Response Spectrum NVH Analysis Optimization
  5. 5. Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved. Platform Support • Windows (32 and 64 bit) • XP • Vista • Windows 7 • Linux (32 and 64 bit) • Red Hat • SUSE • SLES • IBM AIX • Solaris • Apple MAC OS X
  6. 6. Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved. What’s New in RADIOSS 11.0 Platform Support Performance Solutions Solver Integration Multibody Dynamics Complex Eigenvalue Response Spectrum NVH Analysis Optimization
  7. 7. Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved. Performance • SMP Parallel • All Analysis Types • SPMD Parallel • Linear Statics by Subcase • Buckling Analysis by Subcase • Direct Frequency Response by Frequency • Modal Frequency Response by Frequency • PCG Iterative Solver for Linear and Non-Linear Analysis • Dramatic reduction in run times for solid structures • Reduced Run Times • Frequency Response Analysis • NVH Analysis • CMS Super Element Generation • Reduced Memory Requirements • RADIOSS Memory released when AMLS is executed • Reduction in required memory for matrix assembly
  8. 8. Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved. What’s New in RADIOSS 11.0 Platform Support Performance Solutions Solver Integration Multibody Dynamics Complex Eigenvalue Response Spectrum NVH Analysis Optimization
  9. 9. Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved. RADIOSS 11.0 Solutions Linear Solutions Non-Linear Solutions • Statics • Contact with Non-Linear Material Quasi- • Inertia relief Static Analysis • Fatigue Analysis • Contact with Material and Geometric Non- • Thermal Analysis Linear Quasi-Static Analysis • Normal modes • Contact with Material and Geometric Non- • Buckling Analysis Linear Implicit Low Speed Transient Analysis • Complex Eigenvalue Analysis • Contact with Material and Geometric Non- • Frequency response Linear Explicit High Speed Transient Analysis • PowerFlow Analysis • Acoustic Analysis • Optimization • Transient Analysis • Random Response • Response Spectrum • Optimization
  10. 10. Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved. Small Displacement Non-Linear Static Invoked with NLPARM or ANALYSIS = NLSTAT • Contact with small sliding • Grid to Grid/Element (CGAP and CGAPG) • Surface to Surface (CONTACT) • Contact Pressure output • Automatically considers shell thickness • Slide, Stick, and Freeze contact • Non-Linear Materials • MATS1, TABLES1, and TABELST • For Solid and Shell elements • Temperature dependency (TABLEST) • Results can be used for Buckling Analysis • Loading and unloading with SUBCASE continuation (CNTNLSUB) • Static Loading and Temperature
  11. 11. Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved. Large Displacement Non-Linear Static Analysis ANALYSIS = NLGEOM • Additional Non-Linear Element and Material Properties • PSHELLX, PSOLIDX, etc. • MATX62, etc. • Many Non-Linear Material Models • Elastic-plastic • Hyper-elastic • Post-buckling (RIKS method) • Contact
  12. 12. Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved. Non-Linear Implicit Transient Analysis ANALYSIS = IMPDYN• Additional Non-Linear Element and Material Properties • PSHELLX, PSOLIDX, etc. • MATX62, etc.• Contact• Many Non-Linear Material Models • Elastic-plastic • Hyper-elastic • Visco-elastic
  13. 13. Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved. Non-Linear Explicit Transient Analysis ANALYSIS = EXPDYN • Additional Non-Linear Element and Material Properties • PSHELLX, PSOLIDX, etc. • MATX62, etc. • Contact • Many Non-Linear Material Models • Elastic-plastic • Hyper-elastic • Visco-elastic
  14. 14. Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved. What’s New in RADIOSS 11.0 Platform Support Performance Solutions Solver Integration Multibody Dynamics Complex Eigenvalue Response Spectrum NVH Analysis Optimization
  15. 15. Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved. Solver Integration with Concurrent Simulation • All analysis types available using the SUBCASE Bulk Data format MFREQ NLGEOM HEAT • Subcase selects solution sequence • Thermal  Stress • Preload  Frequency Response EXPDYN STATIC • Non-linear Geometry  Explicit Dynamics • Complex load scenarios can be defined BULK DATA • Loadings can be sequential • Parallel analyses in one run Elements • True multi-disciplinary solver Materials • Integrated Properties • Parallelized Loads
  16. 16. Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved. What’s New in RADIOSS 11.0 Platform Support Performance Solutions Solver Integration Multibody Dynamics Complex Eigenvalue Response Spectrum NVH Analysis Optimization
  17. 17. Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved. Multi-Body Dynamics RADIOSS MBD solution sequence • Fully integrated MotionSolve • Kinematics analysis OptiStruct • Dynamic analysis • Static analysis • Quasi-static analysis Analysis • Full flexible body capabilities • Bulk Data Input • Pre-Processing from FE-Model in FEA Motion HyperMesh • Optimization with HyperMorph and HyperStudy
  18. 18. Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved. Motion Solve Integration into RADIOSS Model Setup in HyperMesh • Body Definition thru meshed parts • MBD Element definition • Automatic creation of Flexible Bodies • Automated Solver execution (FEA and MBD) • Exported in Bulk Syntax Integrated Optimization in OptiStruct thru ESLM • Static Responses for Flexbodies • MBD System Level Responses
  19. 19. Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved. Multi-Body Dynamics: Bulk Data Input
  20. 20. Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved. Flexbody and CMS Super Element output • Flexbody output for LMS’ Virtual.Lab • PARAM, LMSOUT • Grid Point Stresses for Shells output to the MNF File • CMS Super Element and Stress Results for AVL/EXCITE • PARAM, EXCOUT • CMS Super Element for ROMAX • Written to PUNCH file using PARAM,EXTOUT,DMIGPCH • Interface to AcuSolve • Grid, Element, and modal data
  21. 21. Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved. What’s New in RADIOSS 11.0 Platform Support Performance Solutions Solver Integration Multibody Dynamics Complex Eigenvalue Response Spectrum NVH Analysis Optimization
  22. 22. Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved. Complex Eigenvalue Analysis Free vibration beyond normal mode analysis • Stiffness or mass matrix is not symmetric • Damped system • Viscous damping – Quadratic Eigen value problem • Structural damping – imaginary part of stiffness matrix • Typical application • Brake squeal analysis • Friction stiffness matrix is asymmetric input through K2PP
  23. 23. Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved. What’s New in RADIOSS 11.0 Platform Support Performance Solutions Solver Integration Multibody Dynamics Complex Eigenvalue Response Spectrum NVH Analysis Optimization
  24. 24. Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved. Response Spectrum Analysis Application to structures subjected to • Seismic loading • Explosions • Estimates maximum structural response from a dynamic excitation • Displacement • Stress • force • Dynamic excitation is specified by response spectra • Maximum response versus natural frequency of 1-DOF system • Typically provided in tabular input format (DTI, SPECSEL) by users • Table lookup to find modal response from response spectra • Combined modal response to estimate max structural response • Directional combination: ALG, SRSS • Modal combination: ABS, SRSS, CQC, NRL
  25. 25. Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved. What’s New in RADIOSS 11.0 Platform Support Performance Solutions Solver Integration Multibody Dynamics Complex Eigenvalue Response Spectrum NVH Analysis Optimization
  26. 26. Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved. Pre-Loaded Analysis Pre-Loaded Normal Modes • Raises or Lowers Natural Frequencies • Resulting Modes can be used for Frequency Response • Resulting Modes can be used for Transient Analysis
  27. 27. Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved. Frequency Response Static load reference for FRF analysis • FORCE • MOMENT • PLOADx • GRAV • Interface with FastFRS solver • Developed by University of Texas • Distributed by CDH
  28. 28. Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved. NVH Acoustic Loads and Damping • Acoustic Source • ACSRCE • Acoustic Impedance (Acoustic Dampers) • MAT10 admittance • CHACAB, PACAB Solid Absorber Element • CAABSF, PAABSF Plate Absorber Element • Directional mass on bushings • PBUSH and PBUSHT • In addition to direction stiffness and directional damping. • Large mounts and bushings models are simplified to a single CBUSH, and all properties change accordingly when the part is modified (previously had to have rigid elements, concentrated masses, and bushings) • Forces recovered from the CBUSH capture all effects for TPA
  29. 29. Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved. Super Element Generation Craig-Bampton Approach • Use “CBN” on the CMSMETH data • Interface DOF are Fixed (ASET or BNDFIX) General Method for CMS Super Element generation • Use “GM” instead of “CBN” on the CMSMETH data • Interface DOF can be Fixed (BNDFIX) • Interface DOF can be Free (BNDFREE) • A mixture of Fixed and Free DOF can be used.
  30. 30. Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved. NVH/Acoustics Advanced Features • Enforced motion with AMLS • Unique to RADIOSS • Alternative is to use large mass method • What is the right mass to use? • Advantages of direct implementation: • No numerical issues • No fake rigid body modes to ignore • Exact Results • Modal Damping can be Added to a CMS SE in the Residual Run • Unit System Definition (UNITS) • To determine the sound pressure reference value for dB or dBA based target specification • To establish meaningful cut-off thresholds • To pass unit information to a post-processing tool
  31. 31. Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved. NVH/Acoustics Results • Complete energy output • Energy output is an important tool for understanding the physics of vehicle vibration • ESE, EKE, EDE • CMSE, CMKE, CMDE (CMSENERGY) • MODALSE, MODALKE, MODALDE • For normal modes (except damping energies), modal FRF, and direct FRF (except for system modal energies) • GPFORCE output for FRF (.h3d, .op2 and .pch) • Transfer path analysis (TPA) requires transfer function and force output be in the same coordinate systems • Grid point force balance output ensures this requirement is met • PFGRID to .h3d file • Compact file format
  32. 32. Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved. NVH/Acoustics Output • Automatic result filtering (PEAKOUT) • Detailed results for peak response frequencies in a single run • Allows Number of Peaks, minimum cutoff and minimum spacing between peaks to be specified • Without this, since frequencies with peak Dynamic Response are not known ahead of time, a second run must be made to get detailed results output • Super Element participation factors (PFCMS) • This makes it possible to output trimmed body or sub- frame modal participation to a full vehicle response • Component modal targets required to meet full vehicle response needs can then be determined • Subcase specific PEAKOUT, PFGRID and PFMODE
  33. 33. Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved. PowerFlow Analysis Powerflow Output • Visualize the energy path from excitation source to mounts. • Can be used with 2D (Body) or 3D (Powertrain) structures
  34. 34. Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved. Conclusion Platform Support Performance Solutions Solver Integration Multibody Dynamics Complex Eigenvalue Response Spectrum NVH Analysis Optimization
  35. 35. Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved. RADIOSS: The Power of One Modern FEA Technology Noise, Vibration & Harshness Durability & Fatigue Life Cycle Scalability, Quality, Repeatability Optimization RADIOSS The power of ONE One solver, One result, One partner ONE product with complete capabilities.

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