px998866
Dołączył: 29 Lip 2010
Posty: 213
Przeczytał: 0 tematów
Ostrzeżeń: 0/5
Skąd: rbuccu
|
 Wysłany: Sob 0:42, 20 Lis 2010 Temat postu: ugg schuhe Helical Gears Thermal EHL theory _2069 |
 |
|
,[link widoczny dla zalogowanych]
Helical Gears Thermal EHL theory
THERMAIELASToHYDRoDYNA Ⅳ Ⅱ CLUBIUCATIoNFoRHELICALGEARSYANGPingYANGPeiran (SchoolofMechanicalEngineering,[link widoczny dla zalogowanych], QingdaoTechnologicalUniversity,[link widoczny dla zalogowanych], Qingdao266033) Abstract: Theinstantaneousthermalelastohydrodynamiclub-rication (EHL) ofthemeshofapairofhelicalgearsissimu-latedbythepseudo-steadystatethermalEHLoftwotaperedrollersinoppositeorientationapproximately. Thebehaviorofpseudo-steadystatethermalEHLisinvestigatedbymultilevelmethodandsequentialsweepingmethod. Itisfoundfromthenumericalresultsthat, firstly, pressure, filmthickness, tem-peratureofthefilmandgearssurfacesaredifferentatdifferentpositionsonthemeshinglineofthehelicalgears, especiallythedistributionoftemperature. Thelowesttemperatureriseisnearlyzero, howeverthehighestCanexceed100Kinthecon-tactarea. Thatiecausethatthedistributionsofpressureandfilmthicknessdependstronglyonthedistributionoftheequivalentradiusinthedirectionoftherollerlength,[link widoczny dla zalogowanych], andthedistributionoftemperaturedependsStrO ~ Iglyonthelocalslide / rollratiointhedirectionoftherollerlength. Secondly,[link widoczny dla zalogowanych], thehighpressuresandtemperaturesintheendsCanbedecreasedbytheendmodifications, butthepressureandtemperaturetherearestillhigherthanthoseinthemiddle, andthefilmthick-nessestherearesmallerthanthatinthemiddle. TheplaceinwhichthepressureandtemperatureishighandthefilmisthiniscorrespondingtotheplacewherepiningandscoringaremostlikelytoOCCur. Keywords: HelicalgearsThermalelastohydrodynamiclubricationTaperedrollersOppositeorientationPseudo-steadystate Author: Yang Ping, female, born in 1979, teaching assistant. Lubrication is mainly engaged in the research. E-maihyangping6662003 @ yahoo. tom. cn
More articles related to topics：
ugg boots sale NdFeB magnetic materials from indus
[link widoczny dla zalogowanych]
[link widoczny dla zalogowanych]
Post został pochwalony 0 razy
|
|
