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1、江蘇大學碩士學位論文路面不平度的分形重構方法研究姓名：李成彬申請學位級別：碩士專業(yè)：車輛工程指導教師：王若平20100607江蘇大學碩士學位論文AbstractTheroughnessofroadsurfaceinvolvesthethreefactorsofpeople，cars，androadsInthefieldofvehicleengineeringroadroughnessisthemainfactorintheenviron

2、mentofvehicleoperatingandthemainsourcesofincentiveandvibrationR0adroughnessgeneratesresistanceandvibrationwhilevehiclesarerunningTheresistancedepletesvehicles’powerandinfluencesthelife—spanofvehicledynamicalsystemandtran

3、smissionsystemAndthevibrationimpactsvehicles’smooth—goingandtakingcomfortableness，handlingstabilitytravelingspeed，bearingsystem’SreliabilityandlifespanInthefieldofroadengineeringroadroughnessisoneoftheevaluationindexesof

4、theroadprojectqualityatbothdomesticandinternationalcountries，androughness—testnlIlsthoughthevariouslinkssuchasqualitytestingassessment，confirmationintheperiodofroadsconstructionandqualityinspectionmaintenanceintheperiodo

5、froad’SoperationItisverysignificantforthefieldsofvehicleengineeringandroadengineeringtoanalyzeontheroadsurfaceroughness，andestablishthereconstructionmodelofroadsurfaceInthispaperthekeytechnologicalcontents，suchascharacte

6、risticdeterminationofroadsurfaceroughness，itsfractalgradewayroughnessandfiactalmodel，werecarriedondeepandsystematicresearch，basedonthecurrentsituationofanalysisandreconstructionoftheroadroughness，combinedwithvariousofthe

7、oriesandtechnologieswhichhavebeenwidelyusedinvariousfields，suchasanalytictheorycomputingtechnologymathematicalmodelTheconcreteworkisasfollows：Firstlyinthispaperthemakeupofroadpowerspectrummeasuredsystemisintroducedandthi

8、sintroductionmainlyfocusesonthestructureandprincipleoflaserroughnesstestingsetwhichisoneimportantpatsofroadpowerspectrummeasuredsystem，atthesametimesomedataofChinatopicalroadwhichweremeasuredbylaserroughnesstestingsetweg

9、ogivenThenthroughtraditionalanalysismethodofroadsurfaceroughnesspowerspectrumanalysis，thefractalcharacteristicsofroadroughnesshasbeenshownbecausetheLogarithmicdistributionofmeasureandscaleislinear，SOthispaperattemptstoes

10、tablishthefiactalmodelofroadsurfaceroughnessreconstructionThemeansofdifferentcomputationarecompared，theresultshowsthatforthestandardgraderoad，thepowerspectmnislinearontheloglogcoordinates，andatthesametimetheprecisionanal

11、ysisofroadroughnesswillfinallyturntopowerspectrum，SOforthestandardgraderoad，thepowerspectrumshouldbeusedtOcalculatethefractaldimensionbutforthemeasuredroad，therootmean—squaremethodhasbotlIclearphysicalsignificanceandsign

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