液艙閥門控制系統(tǒng)經濟性和可靠性研究.pdf

1、大連海事大學碩士學位論文液艙閥門控制系統(tǒng)經濟性和可靠性研究姓名：張興彪申請學位級別：碩士專業(yè)：輪機工程指導教師：孫玉清20040301AbstractWiththeimprovementofautomationdegree，moreandmoreshipsareequipped、Ⅳimthefluidholdvalves’controlsystem，andmostofthemarehydraulicsystemDuetothefluid

2、holdvalves’controlsysteminterrelatescloselywiththeship’SproductionandsafetyitcausesextensiveattentionsfrommanyaspectsInthispaperthefluidholdvalves’controlsystemisstudiedindetailfromaspectsofdynamiccharacteristicandeconom

3、yandreliabilityFirstlythispaperintroducesandanalyzesseveralkindsofthefluidholdvalves’controlsystemwidelyusedonshipSecondlythemathematicalmodelsofthetwomainstreamfluidholdvalvescontrolsystemsaregiven，dynamiccharacteristic

4、isanalyzed，applicablerangeofthemisindicatedThirdlyaccordingtotheeconomicguidelineoftheproductlifecycle，thetwomainstreamfluidholdvalves’controlsystemsareanalyzedandcomparedindetailfromaspectsofthefirsttimeinvestmentandwor

5、kingefficiencyandmaintenancecostingFourthlyreliabilitymodelsofthetwomainstreamfluidholdvalves’controlsystemsaresetupbasedonrelativereliabilitytheoretics，thefunctionofreliabilityandmeantimebetweenfailure(MTBF)ofthemareded

6、uced；hydraulicsystemmanagementmeasureisprovidedbasedonrelativehumachinereliabilitytheoreticsFitthlyvariousvalves’controlsystemsareassessed，applicablerangesofvariousvalvestcontrolsystemsareindicated，designguidelineandsele