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                         Abnormalitydiagnosisfordeformationbehaviorofpumpstationbuildings
                                            basedonnonlineardynamicsmodel

                                                    1,2
                                                                  1
                                         LOUBenxing ,MAFuheng,LUOXiang        1,2
                                      (1.NanjingHydraulicResearchInstitute,Nanjing 210029,China;
                          2.CollegeofWaterConservancy&HydropowerEngineering,HohaiUniversity,Nanjing 210098,China)


                  Abstract:Deformationbehavioranalysisisanimportantscientificmeanstodiagnosetheoperatingstatusofpump
                  stationbuildings,andsinglemeasurepointdeformationisfocusedmainlyintraditionalsafetydiagnosismethod,
                  however,thecooperativedeformationpropertiesbetweenadjacentmeasurepointsshouldbemoreconcernedforthe
                  pumpstation.Inviewofthestrongnonlinearcharacteristicsofthedeformationtimeseriesforpumpstation ,thead
                  jacentmeasurepointsofthepumpstationwereregardedastwononlineardynamicsystemsinthispaper.Basedon
                  thechaostheory,itwasprovedthatthedeformationtimeseriesofthepumpstationgenerallyhavechaoticcharac
                  teristics.Furthermore,byintroducingthedynamicautocorrelationfactorandcross - correlationfactor,anabnor
                  malitydiagnosisapproachfordeformationofpumpstationbuildingsbasedonnonlineardynamicsmodelwasputfor
                  ward.Finally ,thevalidityofthemethodproposedwasverifiedbytheexamplesoftheLogistictimeseriesanda
                  pumpstationoftheSouth - to - NorthWaterDiversionProject.Theresultsshowthatthemethodproposedcanrepre
                  sentthedynamicstructureanddistanceeffectivelybetweentwononlinearsystems ,anddiagnosethedeformation
                  behaviorofpumpstationscomprehensivelyfromtheinternaldrivingfactorsandunevendeformationtendencyofad
                  jacentmeasurepoints ,whichprovidesanewapproachtomastertheoperatingstatusofpumpstationbuildings.
                  Keywords:pumpstationbuildings;deformation;safetydiagnosis;chaoticcharacteristics;nonlineardynamics
                  model


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