›› 2017, Vol. 37 ›› Issue (5): 9-.doi: 10.16708/j.cnki.1000-758X.2017.0078

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Studyontheinfluenceofcathodeandanodepropellantmassflowratesonappliedfieldmagnetoplasmadynamicthrusterperformance

 LI  Ze-Feng, TANG  Hai-Bin, WANG  Bao-Jun, YANG  Wen-Jiang, WEN  Peng-Fei   

  1. 1SchoolofAstronautics,BeihangUniversity,Beijing100191,China
    2BeijingAerospaceExperimentalTechnologyResearchInstitute,Beijing100074,China
  • Received:2017-05-04 Revised:2017-07-11 Online:2017-10-25 Published:2017-09-12

Abstract: Theeffectsofcathodeandanodepropellantmassflowratesonappliedfieldmagnetoplasmadynamicthruster(AFMPDT)performancewerestudied.Theplumeparametersandthrusterworkingparametersincludingdischargevoltage,dischargecurrentandappliedmagneticfieldweremeasured,andperformanceparametersincludingthrust,specificimpulseandefficiencywerecalculated.Bychangingtheproportionofanodeandcathodegassupply,theinfluenceofinitialgasdistributionontheperformanceandphysicalmechanismofthe〖JP2〗thrusterwasanalyzed.Theresultsshowthatboththrustandefficiencyincreasewiththeproportionofcathodegassupply,butwhenitincreasestoacertainpercentagethethrusterperformancedeclinesduetoinstability,whichindicatestheexistenceofthebestproportionofanodeandcathodegassupplyanditssignificantinfluenceonthrusterperformance.

Key words: appliedfieldmagnetoplasmadynamicthruster, electricpropulsion, proportionofanodeandcathodegassupply, thrusterperformance, physicalmechanism