机床系统级动力学仿真;颤振;圆检测-德国PERMAS

27.04.2012PERMASUsers‘Conference2012inHeidelberg1PERMASUsers‘Conference2012inHeidelbergIntegratedSystemSimulationofMachineToolsB.Kirchgäßner,A.Schünemann,R.HelfrichINTESGmbH,Stuttgart‘Conference2012inHeidelberg2Contents¾Modelofasimpleturningmachine¾ControllersinFEmodel¾Frequencyresponseanalysis¾Vibrationmodes–realandcomplex¾Rotatingspindle¾Responseintimedomain¾Contouring¾Stableandinstablebehaviour¾Summary27.04.2012PERMASUsers‘Conference2012inHeidelberg3Contents¾Modelofasimpleturningmachine¾ControllersinFEmodel¾Frequencyresponseanalysis¾Vibrationmodes–realandcomplex¾Rotatingspindle¾Responseintimedomain¾Contouring¾Stableandinstablebehaviour¾Summary27.04.2012PERMASUsers‘Conference2012inHeidelberg4IdealizedModelofaTurningMachineZaxisXaxisSpindleWorkpieceWerkzeughalterMachinebedProposalofWZL,Aachen,ParametersettingsupportedbyINDEX,EsslingenHeadstockCarriages27.04.2012PERMASUsers‘Conference2012inHeidelberg5AxesandGuideRailsAxes,guiderails,motors,ballscrewdirves,transmissions,supports27.04.2012PERMASUsers‘Conference2012inHeidelberg6NonlinearSpindleSupportNonlinearstiffnessanddampingcharacteristicsbetweenspindleandsupport27.04.2012PERMASUsers‘Conference2012inHeidelberg7StructuralDynamics‘Perspective•Thedynamicanalysisofamachinetoolhastocompriseallrelevantsystemcomponentsincludingcontrol.•Thisviewpresumesanalreadyknowncontrolanddoesnotnecessarilyincludethedevelopmentofasuitablecontroller.•Butexistingoptimizationmethodscanbeusedtoadaptcontrolparameters.•Andastructuraloptimizationcanbeperformedundercontrolledconditions.27.04.2012PERMASUsers‘Conference2012inHeidelberg8Contents¾Modelofasimpleturningmachine¾ControllersinFEmodel¾Frequencyresponseanalysis¾Vibrationmodes–realandcomplex¾Rotatingspindle¾Responseintimedomain¾Contouring¾Stableandinstablebehaviour¾Summary27.04.2012PERMASUsers‘Conference2012inHeidelberg9BlockDiagramofControllerCONTRL827.04.2012PERMASUsers‘Conference2012inHeidelberg10ControllerFiniteElementCONTRL827.04.2012PERMASUsers‘Conference2012inHeidelberg11SensorsandActuatorsPositionsensorsforZandXaxisVelocitysensorsandactuatorpositionsTransmissionfromrotationtolongitudinalspeed27.04.2012PERMASUsers‘Conference2012inHeidelberg12Contents¾Modelofasimpleturningmachine¾ControllersinFEmodel¾Frequencyresponseanalysis¾Vibrationmodes–realandcomplex¾Rotatingspindle¾Responseintimedomain¾Contouring¾Stableandinstablebehaviour¾Summary27.04.2012PERMASUsers‘Conference2012inHeidelberg13FrequencyResponsewithoutControlFrequencyresponsefunctionofcompliancebetweenworkpieceandtoolcenterpoint(TCP)27.04.2012PERMASUsers‘Conference2012inHeidelberg14FrequencyResponsewithControl27.04.2012PERMASUsers‘Conference2012inHeidelberg15ComparisonofFrequencyResponse70Hz59Hz27.04.2012PERMASUsers‘Conference2012inHeidelberg16Contents¾Modelofasimpleturningmachine¾ControllersinFEmodel¾Frequencyresponseanalysis¾Vibrationmodes–realandcomplex¾Rotatingspindle¾Responseintimedomain¾Contouring¾Stableandinstablebehaviour¾Summary27.04.2012PERMASUsers‘Conference2012inHeidelberg17RealandComplexModes70Hz59Hz27.04.2012PERMASUsers‘Conference2012inHeidelberg18Contents¾Modelofasimpleturningmachine¾ControllersinFEmodel¾Frequencyresponseanalysis¾Vibrationmodes–realandcomplex¾Rotatingspindle¾Responseintimedomain¾Contouring¾Stableandinstablebehaviour¾Summary27.04.2012PERMASUsers‘Conference2012inHeidelberg19CampbellDiagramofRotatingSpindleIncontrolledcase27.04.2012PERMASUsers‘Conference2012inHeidelberg20ControlledFrequencyResponsewithandwithoutRotatingSpindleIncrossingdirections27.04.2012PERMASUsers‘Conference2012inHeidelberg21Contents¾Modelofasimpleturningmachine¾ControllersinFEmodel¾Frequencyresponseanalysis¾Vibrationmodes–realandcomplex¾Rotatingspindle¾Responseintimedomain¾Contouring¾Stableandinstablebehaviour¾Summary27.04.2012PERMASUsers‘Conference2012inHeidelberg22ControlledResponsetoSuddenPositionChange27.04.2012PERMASUsers‘Conference2012inHeidelberg23ControlledResponsetoSmoothPositionChange27.04.2012PERMASUsers‘Conference2012inHeidelberg24Contents¾Modelofasimpleturningmachine¾ControllersinFEmodel¾Frequencyresponseanalysis¾Vibrationmodes–realandcomplex¾Rotatingspindle¾Responseintimedomain¾Contouring¾Stableandinstablebehaviour¾Summary27.04.2012PERMASUsers‘Conference2012inHeidelberg25ContouringtheworkpiecewithasemicircleWithmovingstart,1sec.totaltime0.2μmradialdeviation27.04.2012PERMASUsers‘Conference2012inHeidelberg26ContouringwithFlyingStart27.04.2012PERMASUsers‘Conference2012inHeidelberg27Contents¾Modelofasimpleturningmachine¾ControllersinFEmodel¾Frequencyresponseanalysis¾Vibrationmodes–realandcomplex¾Rotatingspindle¾Responseintimedomain¾Contouring¾Stableandinstablebehaviour¾Summary27.04.2012PERMASUsers‘Conference2012inHeidelberg28ForcesduringLongitudinalTurningInfluencecoefficientsdependonthecombinationoftoolandmaterialofworkpieceandhavetobedeterminedbyexperiments.27.04.2012PERMASUsers‘Conference2012inHeidelberg29DifferencesbetweenCounterclockwiseandClockwiseRotationThedisplacementinfeeddirectionisessentialfortheregenerativechatte