全球旧事资料 分类
thatofoptimumco
ve
tio
althrustbeari
gsThepurposeoftheprese
tpaperistoi
vestigateexperime
tallythevalidityofthemodeldescribedi
Ref12bytesti
gpracticalthrustbeari
gsa
dcompari
gtheperforma
ceofLSTbeari
gswiththatofthetheoreticalpredictio
sa
dwiththeperforma
ceofsta
dard
o
texturedbeari
gs
2Backgrou
d
Acrosssectio
ofthebasicmodelthatwasa
alyzedi
Ref12isshow
i
figure1Asliderhavi
gawidthBispartiallytexturedoveraportio
BpαBofitswidthThetexturedsurfaceco
sistsofmultipledimpleswithadiameter,deptha
dareade
sitySpAsaresultofthehydrody
amicpressurege
eratedbythedimplestheslidi
gsurfaceswillbeseparatedbyacleara
ceviscosityla
dtheexter
alloadfortheparametercapacitydepe
di
go
theslidi
gvelocityUtheuidItwasfou
di
Ref12thata
optimumratioexiststhatprovidesmaximumdime
sio
lessloadcarryi
gwhereLis
thebeari
gle
gtha
dthisoptimumvalueishp125Itwasfurtherfou
di
Ref12thata
optimumvalueexistsforthetexturedportio
adepe
di
go
thebeari
gaspectratioLBThisbehaviorisshow
i
gure2forabeari
gwithLB075atvariousvaluesoftheareade
sitySpAsca
besee
i
thera
geofSpvaluesfrom018to072theoptimumavaluevariesfrom07to055respectivelyItca
alsobesee
fromgure2thatfora085
ooptimumvalueexistsforSpa
dthemaximumloadWi
creaseswithi
creasi
gSpHe
cethelargestareade
sitythatca
bepracticallyobtai
edwiththelasertexturi
gisdesiredItisalsoi
teresti
gto
otefromgure2theadva
tageofpartialLSTa1overthefullLSTa1forbeari
gapplicatio
sAtSp05forexampletheloadWata06isaboutthreetimeshighertha
itsvalueata1Afullaccou
tofthisbehaviorisgive
i
Ref12
3Experime
tal
fThetestedbeari
gsco
sistofsi
teredSiCdisks10mmthickhavi
g85mmouterdiametera
d40mmi
erdiameterEachbeari
gseegure3comprisesaatrotoraa
dasixpadstatorbThebeari
gswereprovidedwitha
origi
alsurface
ishbylappi
gtoarough
essaverageRa003lmEachpadhasa
aspectratioof075whe
itswidthismeasuredalo
gthemea
diameterofthestatorThephotographsoftwopartialLSTstatorsareshow
i
gure4wherethetexturedareasappearasbrightermattsurfacesTherststatori
dicatedaisau
idirectio
albeari
gwiththepartialLSTadjace
ttotheleadi
gedgeofeachpadsimilartothemodelshow
i
gure1Theseco
dstatorbisabidirectio
alversio
ofapartialLSTbeari
ghavi
gtwoequaltexturedportio
sa2o
eachofthepade
dsThelasertexturi
gparameterswerethefollowi
gdimpledepthdimplediameter
a
ddimpleareade
sitySp06003Thesedimpledime
sio
swereobtai
edwith4pulsesof30
sduratio
a
d4mJeachusi
ga5kHzpulsatir
好听全球资料 返回顶部