Headquarter Research and TechnologyZ-FB / Central EngineeringMorphing process for CFD without restrictionsJ. Jasper, Dr. P...
www.kspg.com © KSPG AG 2013Morphing Process for CFD without restrictionsAuthors:Mrs. Jessica Jasper Mrs. Ramona Schwarzjes...
www.kspg.com © KSPG AG 2013AgendaIntroduction1New morphing process for CFD2Summary3Outlook4Headquarter Research and Techno...
www.kspg.com © KSPG AG 2013AgendaIntroduction1New morphing process for CFD2Summary3Outlook4Headquarter Research and Techno...
Den Präsentationstitel hier übernehmen und in der Masteransicht eingebenwww.kspg.com © KSPG AG 2013 5www.kspg.com © KSPG A...
Den Präsentationstitel hier übernehmen und in der Masteransicht eingebenwww.kspg.com © KSPG AG 2013 6www.kspg.com © KSPG A...
Den Präsentationstitel hier übernehmen und in der Masteransicht eingebenwww.kspg.com © KSPG AG 2013 7www.kspg.com © KSPG A...
Den Präsentationstitel hier übernehmen und in der Masteransicht eingebenwww.kspg.com © KSPG AG 2013 8www.kspg.com © KSPG A...
Den Präsentationstitel hier übernehmen und in der Masteransicht eingebenwww.kspg.com © KSPG AG 2013 9www.kspg.com © KSPG A...
www.kspg.com © KSPG AG 2013Optimization Tools Introduction: Goals Enabling of simulation driven design optimizationaccord...
www.kspg.com © KSPG AG 2013Optimization Tools Introduction: Status For Mechatronics introduced since 2007 and enhanced in...
www.kspg.com © KSPG AG 2013AgendaIntroduction1New morphing process for CFDProject background2Summary3Outlook4Headquarter R...
www.kspg.com © KSPG AG 2013Project Background I Classical work sharing between CAD and CAE: CAE engineer provides results...
www.kspg.com © KSPG AG 2013Project Background IIa Classical HyperMorph approach: morphing of CFD volume mesh. Challenge:...
www.kspg.com © KSPG AG 2013Project Background IIbMajor issue of CFD when applying classical HyperMorph approach: Highly l...
www.kspg.com © KSPG AG 2013AgendaIntroduction1New morphing process for CFDCharacteristics of new morphing process2Summary3...
www.kspg.com © KSPG AG 2013New Process for CFD Morphing – What is different? Shapes are applied on Volume Mesh. HyperStu...
www.kspg.com © KSPG AG 2013New Process for CFD Morphing – Main Procedure Small and handy submodels for quick and interact...
www.kspg.com © KSPG AG 2013New Morphing Process in an Optimization Environment Input definition and preparative work. Hy...
www.kspg.com © KSPG AG 2013AgendaIntroduction1New morphing process for CFDExample: flow through reed valve housing2Summary...
www.kspg.com © KSPG AG 2013EGR reed valve: Assembled downstream of EGR cooler. Makes use of the wave action in the exhau...
www.kspg.com © KSPG AG 2013 22 One big model. Difficult to handle, to mesh and to modify in CAE.Domain partitioning: Ea...
www.kspg.com © KSPG AG 2013STEP 1: Morphing & CFD Batch Meshing Creative definition of promising geometric changesbased o...
www.kspg.com © KSPG AG 2013STEP 1: Batch & Submission Scripts Define design space based on componentnames. Define CFD me...
www.kspg.com © KSPG AG 20135 Shapes for reed valve housing contour: Smooth radius at pipe inlet. Remove bump. Short sid...
www.kspg.com © KSPG AG 2013Goals of postprocessing: Fully automated postprocessing. Only flow visualisation is not suffi...
www.kspg.com © KSPG AG 2013Usage of TEMPLEX: Raw data (velocity components at grid nodes)is taken into account. Statisti...
www.kspg.com © KSPG AG 201335 CFD results from fullfactorial DoE: 25 (5 Shapes, 2 Levels) → 32 Runs. 3 additional Runs (...
www.kspg.com © KSPG AG 2013AgendaIntroduction1New morphing process for CFD2Summary3Outlook4Headquarter Research and Techno...
www.kspg.com © KSPG AG 2013Summary Classical mesh morphing approach in HyperMesh was not applicable for CFD optimization ...
www.kspg.com © KSPG AG 2013AgendaIntroduction1New morphing process for CFD2Summary3Outlook4Headquarter Research and Techno...
www.kspg.com © KSPG AG 2013Outlook Application of new CFD morphing process in daily project life. Embedding of further f...
Thank you for your attention!
www.kspg.com © KSPG AG 2013ENDEDie Weitergabe sowie Vervielfältigung dieses Dokuments, Verwertung undMitteilung seines Inh...
www.kspg.com © KSPG AG 2013DisclaimerThis presentation contains “forward-looking statements”. Forward-looking statements a...
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Morphing process for CFD without restrictions

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Morphing process for CFD without restrictions

  1. 1. Headquarter Research and TechnologyZ-FB / Central EngineeringMorphing process for CFD without restrictionsJ. Jasper, Dr. P. Seggewiß, KSPG AG, R. Schwarz, Dr. A. Veitl, ALTAIR Engineering GmbHEATC 2013 Turin, Italy, April 24th 2013
  2. 2. www.kspg.com © KSPG AG 2013Morphing Process for CFD without restrictionsAuthors:Mrs. Jessica Jasper Mrs. Ramona Schwarzjessica.jasper@de.kspg.com ramona.schwarz@altair.deMr. Dr.-Ing. Peter Seggewiß Mr. Dr.-Ing. Armin Veitlpeter.seggewiss@de.kspg.com armin.veitl@altair.deKSPG AG ALTAIR Engineering GmbHAlfred-Pierburg-Str. 1 Calwer Str. 741460 Neuss 71034 BöblingenGermany GermanyAbstractThe identification of an appropriate concept for a required system performance is a typical task for technical design and CAEbased simulation. The typical work share is that CAD defines the geometry and CAE is calculating the performance. A moremodern alternative is a process which is fully embedded in CAE. Those processes are usually faster than partly or non-embedded processes and they require less coordination effort which helps to improve development performance. Morphingfor structural mechanics is a well-established method to support such modern CAE-processes. Unfortunately, used in CFDenvironment they result in significantly reduced handling performance. The reason is the higher numbers of elements.Another drawback of the usage of morphing in CFD environment is the highly limited freedom for robust geometricalchanges.To overcome these issues, KSPG AG and Altair Engineering developed a new morphing process which leads to nearly nodesign restrictions and respects the expectations for an interactive and creative work flow including assessment of theconcept ideas. This gives the high flexibility to integrate the new process in an automated system optimization, which wassuccessfully proven for an exhaust gas recirculation example.Headquarter Research and Technology –Morphing process for CFD without restrictionsEATC 2013 Turin,Italy, April 24th 20132
  3. 3. www.kspg.com © KSPG AG 2013AgendaIntroduction1New morphing process for CFD2Summary3Outlook4Headquarter Research and Technology –Morphing process for CFD without restrictionsEATC 2013 Turin,Italy, April 24th 20133
  4. 4. www.kspg.com © KSPG AG 2013AgendaIntroduction1New morphing process for CFD2Summary3Outlook4Headquarter Research and Technology –Morphing process for CFD without restrictionsEATC 2013 Turin,Italy, April 24th 20134
  5. 5. Den Präsentationstitel hier übernehmen und in der Masteransicht eingebenwww.kspg.com © KSPG AG 2013 5www.kspg.com © KSPG AG 2013 5A part of the Rheinmetall GroupEuropean Defence company forground forces technologyAutomotive supplier of enginecomponents and systemsSales: €4.704 billionEmployees: 21,767Sales: €2.369 billionEmployees: 12,003Sales: €2.335 billionEmployees: 9,623Rheinmetall DefenceKSPG AGData based on fiscal 2012Rheinmetall AGKSPG part of the Rheinmetall GroupInternational Partner forSecurity and Mobility
  6. 6. Den Präsentationstitel hier übernehmen und in der Masteransicht eingebenwww.kspg.com © KSPG AG 2013 6www.kspg.com © KSPG AG 2013 6Three strong divisionsHardparts Mechatronics MotorserviceDivisionsBusinessUnitsPistonsAluminum-TechnologyPlain BearingsLarge-Bore PistonsInternationalDomesticPierburgPierburg Pump TechnologyThe structure of the KSPG Group
  7. 7. Den Präsentationstitel hier übernehmen und in der Masteransicht eingebenwww.kspg.com © KSPG AG 2013 7www.kspg.com © KSPG AG 2013 7Division HardpartsPistons modulesfor passenger carsPower cylinderunits for trucksContinouscastingDry bearings(Permaglide®)Steel pistons forpassenger carsAluminum engine blocks TransmissionhousingsCylinder workingsurface coatingCylinder headsCrankshaftbearingsBearings forcommercial vehiclesPassenger carspistonsPlain bearings,bushingsLarge-bore pistons in the diameter range from 150 to 640 mm made of steel and aluminumPistonsAluminum-TechnologyPlainBearingsLarge-BorePistonsHardpartsSteel pistonsfor truck
  8. 8. Den Präsentationstitel hier übernehmen und in der Masteransicht eingebenwww.kspg.com © KSPG AG 2013 8www.kspg.com © KSPG AG 2013 8Electrical trans-mission oil pumpsDivision MechatronicsSecondary airpumpsVariable oil pumpsCompact-EGR-valvesElect. motor drivenexhaust flapsElectrical coolantpumps CWA 400Fully variable waterpumps for trucksEGR- coolermodulesSingle-vanevacuum pumpsEGR valves forcommercial trucksExhaust gasmass flow sensorsPierburgPierburgPumpTechnologyWater circulationpumpsMechanical oilpumps for trucksTurbo boost re-circulation valvesUniValve: Mechan.Valve control systemMechatronicsElectrical coolantpumps CWA 50Elect. throttlebodies for trucksEGR mixermodulesMechanical waterpump with clutchMechanicalwater pumps
  9. 9. Den Präsentationstitel hier übernehmen und in der Masteransicht eingebenwww.kspg.com © KSPG AG 2013 9www.kspg.com © KSPG AG 2013 9MotorserviceSales organisation for the worldwide aftermarket activities of theKSPG Group Independent Aftermarket OES (OE Service) for KS and PIERBURG brands SOE (Special OE) for KS and PIERBURG brandsDivision MotorserviceInternationalMS Motor ServiceDeutschlandMS Motor ServiceFranceMS Motor ServiceAsia PacificMS Motor ServiceIbericaMS Motor ServiceBrazilMS Motor ServiceIstanbulDomesticBF GermanyAspergMS Motor ServiceInternational
  10. 10. www.kspg.com © KSPG AG 2013Optimization Tools Introduction: Goals Enabling of simulation driven design optimizationaccording to requirements. Reduction of design loops in structural and fluiddesign by fast and precise results. Reach optimum usage of design space and fullcreative leeway.Support reduction of development times: Realizing frontloading in product development. Facilitating feasibility studies, risk analysis andcost appraisals. Reduction of development loops. Reduction of prototype costs.Support reduction of development costs: Better design to customer requirements. Better structural performance with equal or evenless product weight. Better flow characteristics (less pressure losses,better uniformity, ...).Support improvement of product quality:Market needs:TimingCostsQualityFutureInitialsituationToday10Headquarter Research and Technology –Morphing process for CFD without restrictionsEATC 2013 Turin,Italy, April 24th 2013
  11. 11. www.kspg.com © KSPG AG 2013Optimization Tools Introduction: Status For Mechatronics introduced since 2007 and enhanced in 2008 and 2009. All structural CAE engineers for Mechatronics products were trained. For Hardparts introduced since 2011 and enhanced in 2012. Key structural CAE engineers for Hardparts were trained. Regular usage if suggested or by request.Structural Optimization Tools: For Mechatronics introduced since 2007 and enhanced in 2008 and 2009. All CFD engineers for Mechatronics products were trained. Introduction for Hardparts started in 2012. But, very poor usage due to specific product requirements and CFD relatedobstacles.Fluid Optimization Tools: Formal integration in development processes have been easy, real usage of the toolsstill remains difficult, therefore additional promotion and management support hasbeen needed. And additional effort for CFD optimization had to be spent to obtain the full range ofresults:The implementation process needs to be accomplished, to get fast andprecise proposals opening new design options and full creative leeway:Headquarter Research and Technology –Morphing process for CFD without restrictionsEATC 2013 Turin,Italy, April 24th 201311
  12. 12. www.kspg.com © KSPG AG 2013AgendaIntroduction1New morphing process for CFDProject background2Summary3Outlook4Headquarter Research and Technology –Morphing process for CFD without restrictionsEATC 2013 Turin,Italy, April 24th 201312
  13. 13. www.kspg.com © KSPG AG 2013Project Background I Classical work sharing between CAD and CAE: CAE engineer provides results including proposals forgeometry improvements, designer modifies the CAD data.Advantage: Fast and significant design changes are possible.Disadvantage: Challenging interface management between CAD and CAE. High efforts for coordination and communication in order to keep error-proneness low. Creative and interactive optimization in CAE is not possible.New approach: Ideas are generated directly in CAE. A creative and interactive optimization process is possible.Where do we come from?CAEModellingCADDesignSimulation ManufacturingConceptIdeaSystemEvaluationTestingCADDesignCAEModellingSimulationConceptIdeaSystemEvaluationCADDesignManufacturingTestingHeadquarter Research and Technology –Morphing process for CFD without restrictionsEATC 2013 Turin,Italy, April 24th 201313
  14. 14. www.kspg.com © KSPG AG 2013Project Background IIa Classical HyperMorph approach: morphing of CFD volume mesh. Challenge: control deformation of prism layers during morphing!Advantage: No change of software tool environment, executable as batch process.Disadvantage: Due to very high element counts (which are usual for KSPG AG CFD tasks) significant performancereduction compared to structural mechanics application. High efforts for prism layer control.MORPHING of CFD grid using HyperMesh and HyperStudy1140 morph volumes1296 handles2D-domains for prism layer control14Headquarter Research and Technology –Morphing process for CFD without restrictionsEATC 2013 Turin,Italy, April 24th 2013
  15. 15. www.kspg.com © KSPG AG 2013Project Background IIbMajor issue of CFD when applying classical HyperMorph approach: Highly limited freedom for design changes → significant modifications cause mesh damage! Scatter band of numerical uncertainties in CFD is equal or greater than the influence of (limited) geometrymodification. Application of classical CFD mesh morphing is not usable/makes no sense! Previous attempts to solve the problem were not executable in HyperStudy batch process. Release of KSPG AG & ALTAIR Project “New Morphing Process for CFD”.Red elements indicate mesh damage!Initial Situation before morphing. After applying classical morph approach:Schematic example for mesh damage:15Headquarter Research and Technology –Morphing process for CFD without restrictionsEATC 2013 Turin,Italy, April 24th 2013
  16. 16. www.kspg.com © KSPG AG 2013AgendaIntroduction1New morphing process for CFDCharacteristics of new morphing process2Summary3Outlook4Headquarter Research and Technology –Morphing process for CFD without restrictionsEATC 2013 Turin,Italy, April 24th 201316
  17. 17. www.kspg.com © KSPG AG 2013New Process for CFD Morphing – What is different? Shapes are applied on Volume Mesh. HyperStudy combines 2 ASCII files: (1) displacement vectors (2) grid point coordinates.Major development target: The approach for "New Process for CFD Morphing" is based on batch morphing and batchmeshing (2D & 3D). Challenge: ensure a robust and reliable process considering all CFD related requirements.Ideas for target realization: Splitting the complete system into short and handy sections (domains). Morphing and batch meshing will be applied only on one single section (→ morph domain). New morph process will be supported by scripts. Automated model export and assembly.Initial situation “Classical Morphing”:17Headquarter Research and Technology –Morphing process for CFD without restrictionsEATC 2013 Turin,Italy, April 24th 2013
  18. 18. www.kspg.com © KSPG AG 2013New Process for CFD Morphing – Main Procedure Small and handy submodels for quick and interactive modifications.Partitioning & meshing: Divide system in smaller sections (domains). Precise interface definition. Individual 2D and 3D meshing. Export of each section separately.Morphing: Apply standard morph functions (shape functions / shape variables) at outer 2D mesh only. Apply new automated CFD morph process (in batch mode) with: Remeshing of morphed outer surface (2D). CFD-Remeshing of inner volume (3D).Domain assembly & job submission: Automatic assembly. Automatic load case setup.Basic idea:2D3D18Headquarter Research and Technology –Morphing process for CFD without restrictionsEATC 2013 Turin,Italy, April 24th 2013
  19. 19. www.kspg.com © KSPG AG 2013New Morphing Process in an Optimization Environment Input definition and preparative work. HyperStudy Setup. Automated CFD morph process in batch mode inside HyperStudy.STEP 2 STEP 3Workflow:nominal runautomatic morphing,remeshing, domain exportassemblyjobsubmissionresultprocessingcontrol/optimizationengineHyperStudyall domains meshed morph shapes defined submission scripts preparedSTEP119Headquarter Research and Technology –Morphing process for CFD without restrictionsEATC 2013 Turin,Italy, April 24th 2013
  20. 20. www.kspg.com © KSPG AG 2013AgendaIntroduction1New morphing process for CFDExample: flow through reed valve housing2Summary3Outlook4Headquarter Research and Technology –Morphing process for CFD without restrictionsEATC 2013 Turin,Italy, April 24th 201320
  21. 21. www.kspg.com © KSPG AG 2013EGR reed valve: Assembled downstream of EGR cooler. Makes use of the wave action in the exhaust andintake system to push the EGR rate. Aluminum and PPA reed valve available.CFD task: Reduce swirling flow in reed valve housing: Pressure loss reduction. Increase flow uniformity downstream of reed valvehousing.DoE Setup: 1 load case (testing conditions). 5 shapes which modify the contour of reed valvehousing.Load Case DefinitionMass Flow 70 g/sInlet Temperature 20 °COutlet Pressure 1 bar (stat., abs.)Fluid Material Air Ideal GasAluminumPPAExample: Flow through Reed Valve Housing21Headquarter Research and Technology –Morphing process for CFD without restrictionsEATC 2013 Turin,Italy, April 24th 2013
  22. 22. www.kspg.com © KSPG AG 2013 22 One big model. Difficult to handle, to mesh and to modify in CAE.Domain partitioning: Each domain is easy to handle, to mesh and to modify!Standard meshing without domain partitioning:> 15 Mio. Elementsassembly tool4 x (< 5 Mio. Elements)Assembly on Demand = Model on Demandall domains meshed morph shapes defined submission scripts preparedSTEP1Headquarter Research and Technology –Morphing process for CFD without restrictionsEATC 2013 Turin,Italy, April 24th 2013STEP 1: Domain Partitioning & Meshing
  23. 23. www.kspg.com © KSPG AG 2013STEP 1: Morphing & CFD Batch Meshing Creative definition of promising geometric changesbased on engineering judgement. Transfer of idea into CAE.Definition of process settings in HyperMesh: Interface sections for later assembly. Wall components for boundary layer. Volume for 3D meshing.Use GUI !Morph Shape generation:all domains meshed morph shapes defined submission scripts preparedSTEP1Mesh ofMorph DomainReduce ModelDefineDesign SpaceFix Interfaces Morph 2D-Mesh Export Shapes23Headquarter Research and Technology –Morphing process for CFD without restrictionsEATC 2013 Turin,Italy, April 24th 2013
  24. 24. www.kspg.com © KSPG AG 2013STEP 1: Batch & Submission Scripts Define design space based on componentnames. Define CFD meshing setup: Number of layers. First layer thickness. Growth rate. Define 2D-remeshing of the design space: Type of elements.Quality of 2D-mesh is controlled by astandard criteria file which could beeasily created with HyperMesh. Possibility to switch between local run onworkstation or submission of the CFD job tocluster by the use of PBS.Script configuration:all domains meshed morph shapes defined submission scripts preparedSTEP124Headquarter Research and Technology –Morphing process for CFD without restrictionsEATC 2013 Turin,Italy, April 24th 2013
  25. 25. www.kspg.com © KSPG AG 20135 Shapes for reed valve housing contour: Smooth radius at pipe inlet. Remove bump. Short side: push wall inside. Long side A: pull wall outside. Long side B: push wall inside.STEP 2: Batch Morphing & Resulting Shapesremove bumpShape „Long Side A“: approx. 6mm≈120mmMorphing result: Deformations > 1mm are possible. Successful shape combinations. Not fully smoothed shapes:Potential for Improvements!short sidelong sideAB25Headquarter Research and Technology –Morphing process for CFD without restrictionsEATC 2013 Turin,Italy, April 24th 2013
  26. 26. www.kspg.com © KSPG AG 2013Goals of postprocessing: Fully automated postprocessing. Only flow visualisation is not sufficient. Required: characteristics which represent flowfield structure. Provide data base for HyperStudy responses. Identification of best design in DoE.CFD Postprocessing & Definition of HyperStudy Responses (a)STEP 2: TEMPLEXStreamlinescoloured by VelocityAngle DeviationNormal Velocity26Headquarter Research and Technology –Morphing process for CFD without restrictionsEATC 2013 Turin,Italy, April 24th 2013
  27. 27. www.kspg.com © KSPG AG 2013Usage of TEMPLEX: Raw data (velocity components at grid nodes)is taken into account. Statistical evaluation of velocity distribution →HyperStudy responses. Almost independent of postprocessingsoftware. Full flexibility and short response time.CFD Postprocessing & Definition of HyperStudy Responses (b)STEP 1: export raw data for each node on planeX [m], Y [m], Z [m], u [m/s], v [m/s], w [m/s],STEP 2: TEMPLEXRESULT: output.txtCharacteristics A1, B1, C1 etc.HyperStudyResponses27Headquarter Research and Technology –Morphing process for CFD without restrictionsEATC 2013 Turin,Italy, April 24th 2013
  28. 28. www.kspg.com © KSPG AG 201335 CFD results from fullfactorial DoE: 25 (5 Shapes, 2 Levels) → 32 Runs. 3 additional Runs (3rd Level for 3 Shapes). HyperStudy Response: Characteristic for Swirl in Pipe.Flow through Reed Valve Housing – DoE ResultsRun1Angle DeviationLess Swirl in Pipe!Run33HighLow28Headquarter Research and Technology –Morphing process for CFD without restrictionsEATC 2013 Turin,Italy, April 24th 2013
  29. 29. www.kspg.com © KSPG AG 2013AgendaIntroduction1New morphing process for CFD2Summary3Outlook4Headquarter Research and Technology –Morphing process for CFD without restrictionsEATC 2013 Turin,Italy, April 24th 201329
  30. 30. www.kspg.com © KSPG AG 2013Summary Classical mesh morphing approach in HyperMesh was not applicable for CFD optimization tasks withregard to KSPG AG products.Source of problem: Highly limited freedom for design changes → significant modifications cause mesh damage. Scatter band of numerical uncertainties in CFD ≥ influence of geometry change.Approach: Release of development project together with ALTAIR Engineering GmbH. Definition of a new robust process for CFD morphing: Domain partitioning. Batch process for morphing of surface mesh & CFD meshing. New postprocessing procedure. Fast and reliable predictions for significant geometry modifications. Comfortable handling of workflow by HyperStudy user. New process successfully applied for reed valve application.Numerical Optimization for CFD at KSPG AG has been fundamentally strengthened !Problem:30Headquarter Research and Technology –Morphing process for CFD without restrictionsEATC 2013 Turin,Italy, April 24th 2013
  31. 31. www.kspg.com © KSPG AG 2013AgendaIntroduction1New morphing process for CFD2Summary3Outlook4Headquarter Research and Technology –Morphing process for CFD without restrictionsEATC 2013 Turin,Italy, April 24th 201331
  32. 32. www.kspg.com © KSPG AG 2013Outlook Application of new CFD morphing process in daily project life. Embedding of further functionalities: Exchange of (non-morph) domains in order to explore a wider range of geometryvariants during DoE. Modification of CFD boundary conditions (different load cases). KSPG AG products require a process for morphing for CFD CHT tasks !!!Modification of Coolant Channel32Headquarter Research and Technology –Morphing process for CFD without restrictionsEATC 2013 Turin,Italy, April 24th 2013
  33. 33. Thank you for your attention!
  34. 34. www.kspg.com © KSPG AG 2013ENDEDie Weitergabe sowie Vervielfältigung dieses Dokuments, Verwertung undMitteilung seines Inhalts sind verboten, soweit nicht ausdrücklich gestattet.Zuwiderhandlungen verpflichten zu Schadenersatz. Alle Rechte für den Fall derPatent-, Gebrauchsmuster- oder Geschmacksmustereintragung sind vorbehalten.The reproduction, distribution and utilization of this document as well as thecommunication of its contents to others without explicit authorization is prohibited.Offenders will be held liable for the payment of damages. All rights reserved in theevent of the grant of a patent, utility model or design.Copyright34
  35. 35. www.kspg.com © KSPG AG 2013DisclaimerThis presentation contains “forward-looking statements”. Forward-looking statements are sometimes, butnot always, identified by their use of a date in the future or such words as “will”, “anticipates”, “aims”,“could”, “may”, “should”, “expects”, “believes”, “intends”, “plans” or “targets”. By their nature, forward-looking statements are inherently predictive, speculative and involve risk and uncertainty because theyrelate to events and depend on circumstances that will occur in the future. There are a number of factorsthat could cause actual results and developments to differ materially from those expressed or implied bythese forward-looking statements. In particular, such factors may have a material adverse effect on thecosts and revenue development of the KSPG group.All written or oral forward-looking statements attributable to KSPG AG or any group company of KSPG AGor any persons acting on their behalf contained in or made in connection with this presentation areexpressly qualified in their entirety by factors of the kind referred to above. No assurances can be giventhat the forward-looking statements in this presentation will be realized. Except as otherwise stated hereinand as may be required to comply with applicable law and regulations, KSPG AG does not intend to updatethese forward-looking statements and does not undertake any obligation to do so.35

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