汽油機(jī)參數(shù)采集分析系統(tǒng)的開(kāi)發(fā)及應(yīng)用研究.pdf

1、北京交通大學(xué)碩士學(xué)位論文汽油機(jī)參數(shù)采集分析系統(tǒng)的開(kāi)發(fā)及應(yīng)用研究姓名：胡琰申請(qǐng)學(xué)位級(jí)別：碩士專(zhuān)業(yè)：動(dòng)力機(jī)械及工程指導(dǎo)教師：李國(guó)岫20080601北京交通大學(xué)碩士論文AbstractAbstractTheexperimentalinstrumentactsakeyroleintheengineexperiment，whichisacrucialstepintheengineresearchandproductionWiththedevelo

2、pmentofvirtualinstruments，experimentalinstrumentshavebeentrendingtobeflexibleCustomerscallbuildansuitabletestingsystemaccordingtotheirpracticalconditionsThetestingsystemCanbeamended，extendedandupgradedwithoutchanginghard

3、wareoronlychangingalialeComparedwiththetraditionalenginetestinstruments，theengineexperimentaldataacquisitionandanalysissystembasedonvirtualinstrumentismoreflexible，lowerwastingandhigherefficientThethesisofthisresearchpro

4、jectisdetectingthevibrationthenoiseandtheignitionactionofgasolineengineonanindustrialcontrolcomputerThesystemhasthefunctionofthattheresultsofdetectionCanbesavedinadatabaseItCananalyzeandprocesstheresultsofdetectionprelim

5、inaryAtthesametime，thesystemalsoCandetectthealternatoranddirectcurrentdynamo，whichbothareassortedwiththeengineThefunctionsofvibrationdetectingandnoisedetectingCanbeextendedTheparameteroftheengineinvolvethevibration，theno

6、ise，voltageofsecondarycoilofignitionsystem，voltageofprimarycoilofignitionsystem，currentofprimarycoilofignitionsystem，voltageofalternatorcurrentofalternatorvoltageofdirectcurrentdynamoandcurrentdirectcurrentdynamoThisthes

7、isintroducesthegeneralplanningandtherudimentalprincipleofworkatfirstOnthisbasis，thethesisintroducesthedifferentsensorswhichareusedtodetectthedifferentsignalsInordertealizetheintegratedtestingofdynamicparametersandreal—ti

8、meinspection，anewfashionreal—timetestingsystemdesignfortheintegratedparametersofengineerisproposedbasedonthetechnologyofvirtualinstrumentItespeciallyintroducesthedesignofthestructureandframeworkofthesystemhardwareandsoft

9、wareItintroducesthephilosophyofmeasurementofeachsignalminutelyanditaccountsthesoftware’Smethodofoperation，anditdiscussesaboutthestorageandofflineanalysisofthereal—timedataFinallyaseriesofexperimentswerecarriedoutwiththee