洒布车液压泵典型故障检测的实验研究

《洒布车液压泵典型故障检测的实验研究》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。

1、机床与液压Oct．2012HydromechatronicsEngineeringVo1．40No．19DOI：10．3969／j．issn．1001-3881．2012．19．013ExperimentalStudyofTypicalFaultDetectioninHydraulicPumpofAsphaltDistributorLIUSiyuan，JIANGWanlu，ZHANGShengTheDepartmentofMachineryandElectronicEngineering，Yansh

2、anUniversity，Qinhuangdao066004，ChinaAbstract：Inordertoensurethepropertyandreliabilityofasphaltdistributor，anexperimentalmethodaboutthechangeofsquaredpredictionerrorbasedonPrincipalComponentAnalysis(PCA)ofQstatistics．whichisbasedonanalysisofvibrationsig

3、nalofcenterspringfaultofaxialpistonpumpthatisthecorecomponentofhydraulicdrivingsysteminhalfintelligentasphaltdis-tributor，ispresentedtodealwithfaultdetectioninthispaper．Inthismethod．thefeaturefre-quencyoffaultfromenvelopespectrumdiagrambyfilteringde··n

4、oisingandenvelopedemodula-tionwillbefirstlyanalyzed，andthefeaturevectorsamplescouldbeobtainedbasedonwaveletpacketenergymethod；afterthat，thefaultdetectioncouldbeprocessedbyusingnormalworksampletoestablishpdncipalcomponentmodel；eventually，threediferentfa

5、ulttypesofcenterspringcouldbeobtainedandstudiedthroughtheexperimentaldatatoverifytheproposedmeth-od．Keywords：asphaltdistributor，faultdetection，PrincipalComponentAnalysis(PCA)，axialpistonpumpWiththecontinuousdevelopmentofChina~na—mileageofChina．Therefor

6、e，halfintelligentasphalttionaleconomy，thehighwayconstructionindustrydistributorshavealargeshareinthedomesticmar-hasgainedrapidrise．Inordertoensurethequalityket．，andefficiencyofhighwayconstruction，thepropertyThehydraulicdrivesystemofhalfintelligentas—an

7、dreliabilityofmechanicalequipmentneedhigherphahdistributorisdesignedbyquantitativeaxialpis-standards．Theasphaltdistributorisoneofessentialtonpumpasapowersourceandopen-looppropor-equipmentsinconstructionprocessandplaysacriti—tionalcontro1．Hydraulicpumpi

8、stheheartofthecalroletoensuretheconstructionquality．Accordingsystemwhichwilldirectlyimpactontheperformancetodiferentrequirementsofpavement，differentgradeofthehydraulicsystemaswellaspropertyandcon-ofasphaltdistributorappearsinthemarket，a