Implementation of Squeak and Rattle Analysis in HyperWorks

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Implementation of Squeak and Rattle Analysis in HyperWorks

  1. 1. Implementation of Squeak andRattle Analysis in HyperWorksIsmail Benhayoun, AltairHarris Zografos, Altair2013 EuropeanAltair Technology ConferenceTurin, ITALYApril 22nd to 24th, 2013
  2. 2. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.Ismail Benhayoun, Harris ZografosTurin 2013-04-22/24• Integrate the technology in a robust and progressive environment• Create an automated process• Offer high customization capabilitiesImplementation of the methodology in HW environmentSnR Analysis in HyperWorks®SAE 2010-01-1423SAE 2012-01-1553E-Line Method in Squeak and Rattle – Director
  3. 3. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.Ismail Benhayoun, Harris ZografosTurin 2013-04-22/24Core technologyRattle Correlation Squeak CorrelationRef. SAE 2012-01-1553
  4. 4. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.Ismail Benhayoun, Harris ZografosTurin 2013-04-22/24Gap sizeRelative displacement in a gapGapForce/accelerationShaker3D Laser VibrometerGapPlasticSteelLaser beamPseudo random signalA random signal of a userdefined time lengthis repeated for eachmeasurement (trigger).RattleRattle CorrelationRef. SAE 2012-01-1553
  5. 5. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.Ismail Benhayoun, Harris ZografosTurin 2013-04-22/24SIMULATIONF (t)Displacement simulatedwith modal transient solverTest configurationsRef. SAE 2012-01-1553
  6. 6. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.Ismail Benhayoun, Harris ZografosTurin 2013-04-22/24Force M1Force M2Displacement M1Displacement M2Trigger validationRef. SAE 2012-01-1553
  7. 7. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.Ismail Benhayoun, Harris ZografosTurin 2013-04-22/24Modal dampingModal correlationRef. SAE 2012-01-1553
  8. 8. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.Ismail Benhayoun, Harris ZografosTurin 2013-04-22/24Ref. SAE 2012-01-1553Config 1 - correlation in time domain
  9. 9. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.Ismail Benhayoun, Harris ZografosTurin 2013-04-22/24Modal transientF(t )ModaldampingConfig 1 - correlation in time domainRef. SAE 2012-01-1553
  10. 10. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.Ismail Benhayoun, Harris ZografosTurin 2013-04-22/24GAP1.03 mm 1.05 mm 1.04 mmDouble click Single clickConfig 1 - first contactRef. SAE 2012-01-1553
  11. 11. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.Ismail Benhayoun, Harris ZografosTurin 2013-04-22/24Contact No ContactNo ContactGAPAmplitudePhaseNon Linear LinearLinearConfig 1 – Intensive rattleRef. SAE 2012-01-1553
  12. 12. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.Ismail Benhayoun, Harris ZografosTurin 2013-04-22/24Single click Intensive rattleGAP GAPRattle correlationRef. SAE 2012-01-1553
  13. 13. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.Ismail Benhayoun, Harris ZografosTurin 2013-04-22/24Single click Intensive rattleGap = MeancritGap ----Mean ----Rattle correlationRef. SAE 2012-01-1553
  14. 14. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.Ismail Benhayoun, Harris ZografosTurin 2013-04-22/24Node # 1M10%HVTest vs SimulationNode # 5Config. 3Evaluation along a lineRef. SAE 2012-01-1553
  15. 15. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.Ismail Benhayoun, Harris ZografosTurin 2013-04-22/24Squeak correlationRel disp in contact planePeak to peak amplitudePart IPart IIPQwvuGAPRattle SqueakXYZContact / gapRef. SAE 2012-01-1553
  16. 16. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.Ismail Benhayoun, Harris ZografosTurin 2013-04-22/24Ref: SAE 2012-01-1553Stick Slip phenomenonP2P relative displacementin the squeak planeSqueak correlationRef. SAE 2012-01-1553
  17. 17. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.Ismail Benhayoun, Harris ZografosTurin 2013-04-22/24Squeak evaluationStick slip machine test dataT = 2 sxyMain directionMax principal Peak to Peak amplitudeSAR-LineDirectionRef. SAE 2012-01-1553
  18. 18. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.Ismail Benhayoun, Harris ZografosTurin 2013-04-22/24S&R FE-LinesAnalysis processOptiStructModal transientanalysisPre-processing Post-processingAnalysisProcess ManagerSemi-AutomaticAutomaticpost-processing
  19. 19. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.Ismail Benhayoun, Harris ZografosTurin 2013-04-22/24Process Manager : Global Parameters
  20. 20. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.Ismail Benhayoun, Harris ZografosTurin 2013-04-22/24Process Manager : Material Mapping
  21. 21. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.Ismail Benhayoun, Harris ZografosTurin 2013-04-22/24Process Manager : Creation of SnR linesA1.01
  22. 22. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.Ismail Benhayoun, Harris ZografosTurin 2013-04-22/24Process ManagerLine ID Line type Materials pair min-max Interface name Gap dimension [mm] Tolerance [mm]1085 Rattle MAT1/MAT3 0.001-0.003 A1.01 10 14030 Rattle MAT1/MAT3 0.001-0.003 A1.02 10 18014 Rattle MAT1/MAT3 0.001-0.003 A1.03 10 112005 Rattle MAT1/MAT3 0.001-0.003 A1.04 10 116018 Rattle MAT1/MAT3 0.001-0.003 A1.05 10 124025 Rattle MAT1/MAT3 0.001-0.003 A1.06 10 128043 Rattle MAT1/MAT3 0.001-0.003 A1.07 10 132010 Rattle MAT1/MAT3 0.001-0.003 A1.08 10 136013 Squeak MAT1/MAT3 0.001-0.003 A1.09 0 040010 Squeak MAT1/MAT3 0.001-0.003 A1.10 0 044048 Squeak MAT1/MAT3 0.001-0.003 A1.11 0 048070 Squeak MAT1/MAT3 0.001-0.003 A1.12 0 052010 Squeak MAT1/MAT3 0.001-0.003 A1.13 0 056070 Squeak MAT1/MAT3 0.001-0.003 A1.14 0 060008 Squeak MAT2/MAT4 0.002-0.004 A1.15 0 064013 Squeak MAT2/MAT4 0.002-0.004 A1.16 0 068014 Squeak MAT2/MAT4 0.002-0.004 A1.17 0 072027 Squeak MAT2/MAT4 0.002-0.004 A1.18 0 0
  23. 23. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.Ismail Benhayoun, Harris ZografosTurin 2013-04-22/24Post - Processing
  24. 24. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.Ismail Benhayoun, Harris ZografosTurin 2013-04-22/24Post - Processing
  25. 25. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.Ismail Benhayoun, Harris ZografosTurin 2013-04-22/24Semi-Automatic processA2B comparisonsOPTIMIZATIONAnalysis processProcess ManagerSemi AutomaticAutomaticpost-processingS&R FE-LinesOptiStructModal transient analysisSqueak and Rattle – Director
  26. 26. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.Scania CV AB & LeanNovaBy courtesy of Scania CV ABEsupplier = 1950MpaEcorrelation = 4500 MPaEsupplier = 1950MpaEcorrelation = 2500 MPaModal correlationCurrent cockpitImprove thematerialdata in theFE model
  27. 27. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.Ismail Benhayoun, Harris ZografosTurin 2013-04-22/24SnR AnalysisCurrent cockpit Scania New Cab GenerationA2B comparisonLoads fromRoad Tests andMBA simulationsForces (Fx, Fy, Fz) applied at:1. Bushing#12. Bushing#23. Suspension#14. Suspension#25. Suspension#36. Suspension#47. Cross_link#18. Cross_link2Modal TransientInput loads
  28. 28. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.Ismail Benhayoun, Harris ZografosTurin 2013-04-22/24Thank you!Grazie mille!

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