TM TTTrong nghin cu ny, mt b Vy Yip s dng,>3Q uyn qrvg,\\IU cVvA. S \b\^xv dc dua ra xem xt v thc hin. u tin, kt cu ca b Yy \\(1.5.2. Phng php nghin cu

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Chng 2: Tng quan v b ly hp

2.1. Khi qut v ly hp

^2.2. C s tnh ton ca MRF

2.3. Cc kiu hot ng ca lu cht t bin (MRF)

2.4. Cc vn cn gii quyt

V-Chng 3: Thit k b ly hp dng lu cht t bin

\93.1. Nguyn l hot ng

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3.2. Tnh ton ly hp

3.2.1. Tnh ton momen truyn ng

3.2.2. Thit k ti u b ly hp dng lu cht t bin Chng 4: iu khin ly hp MR

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lnh 2.1 : Nguyn l hot dng ca luu chl ti bin tsMinh 2.2: Phanh ng dng lu clit tu bin t vV.,** **vesfcift*"*'* ** nthltp, vic iu khin tc V mi vn 4**>w' **'*'t)UMi Irvnn vA quyi nh dn li cA cAc co cu Vhfcfi 1 VUK v\ M% Wkte' '* *v*'v' t'l cAu Irviyn dng lun c cc nhi nghi C1IU \CTV i c> (WI MMm kv*i Itnyl,, ilng. v d nh: Iruyn dng bng. x\ch. uw\ct\ vYtt* bn* A*. ti i\ Ou vl^Hfi hitg bnh rng, Iruyn dng, bng cc kA\\> dt 1>\I. - - N\&\ w^v \TWycv\ vtv'1 VK VOU C\N lui V\ ulic clm ring, ty vo vng, ng ln c vh n\4 c\\vjT\ en CAU tru \oil d\V) clo ph hp.I>uycpliitt hin t cui nhng nm 1940 bi Jacob RabHwvi. V.VIMvhin (MKI)mt lo lu cht thng minh d thu Viv dvHjc nVeu s \VKU\ m cacc uh txghn cu. Tuy nhin cho n u nhng, n&m \StfO, MH.V m'\ tC cVtvVv thc a vo nJibin cu v pht trin. Mc d cch ic Yvoi d()w\, VUOW^J \.V C\,u was cho thy tim nng cng nh tnh ng dng ca \u chav t b\Y \. x \tav N. t c pht trin nhiu hn na.

Nhn chung, cc c cu trn thc t u c mt im chung quan trng chnh l iu khin tc cng nh momen u ra ca trc ti. iu cho thy, vic iu khin tc cng nh momen u ra ca trc ti lun l mt vn c quan tm hng du trong nn cng nghip hin nay.Vi vai tr quan trng , hng lot cc c cu truyn ng ra i nh c cu hp s (truyn ng bng bnh rng), c cu xch, c cu ai,... vi cc t s truyn c nh, iu ny ng ngha vi vic iu khin v cp tc trc ti gp nhiu kh khn. Hn na, trong truyn ng gp phi vn v ma st, gy ra mi mn cao, cng vi vic cc c cu trn c cu to t nhng chi tit tng i ln nn vic lp t vo cc h thng nh gp nhiu hn ch.Vn iu khin tc u ra ca ti gi y c t ra l vn gii quyt bi ton ma st, bi ton t l truyn nhm iu khin c v cp tc , n nh, chnh xc v hiu sut hot ng cao nht. Vi c tnh ca lu cht t bin, khi khng c t trng tc ng, n gn nh l mt cht lng, nh hng ca n ti vic truyn ng ca n l kh nh; nhng khi c t trng tc ng vo, n gn nh ha rn, mc ha rn ph thuc vo cng t trng tc dng vi tc rt nhanh (ch khong 10ms), th vic khng ch hay ni khc hn l iu khin tc trc ti hot ng vi tc t c n nh cng vi hiu sut cao l mt hy vng mi cho vic iu khin t l truyn ca b ly hp nh mong mun. Vy vi cc c tnh u vit ca lu cht t bin, liu n c tht s p ng c bi ton iu khin tc u ra ca b ly hp hay khng? gii quyt cu hi ny, i hi cn phi da n cc nghin cu trc y v cc ng dng ca lu cht t bin, t c nhng nghin cu tnh ton, thit k, ch to v thc nghim a ra nhng nh gi thit thc v c cu truyn ng dng lu cht t bin, ch s ma st, mi mn, kim sot t l truyn ng, nng cao momen ti l nhng vn quan trng cn c lu tm, nghin cu VI pht trin su rng.

I 3 Mc tiu nghin cu cu d li:i. Nm bt c c tinh cng nh nguyn l hot ng ca lu cfit ti bin.Thit k, ti uru v ch lo b ly hp dng lu cht t bin.- iu khin v cp tc u ra ca b ly hp dng lu cht ti bin, li- n nh h thng.1 4 Ni dung nghin cu ca ti:ti- Nghin cu v cc c tnh v nguyn l ca lu cht t bin.4- Nghin cu, thit k ti u b ly hp dng lu cht t bin.Nghin cu thit k b iu khin PID cho b ly hp.- Thc nghim, nhn xt v nh gi b ly hp dng lu cht ti bin.1.5. Phirtrng php nghin cu ca ti:1.5.1. Phng php lun:Phng php nghin cu l nhng nguyn tc v cch thc hot ng V\oa hc nhm t ti chn l khch quan da trn c s ca s chng mvrih khoa Yvc.iu ny c ngha rng, cc nghin cu khoa hc cn phi c nhng, nguyn tc v phng php c th, m da theo cc vn s c gii quyt.Nghin cu ch to b ly hp dng lu cht t bin nhm to ra mt \o\ \y hp mi c chnh xc v n nh cao, h s ma st gy mi mn h thng dqc gim n mc thp nht da vo mi quan h gia bin thin ca t trng, v rn lng ca lu cht t bin, t to ra mt t l truyn ph hp. thc Y\ nghin cu ny cn thc hin:4- Tng hp cc nghin cu c sn trong nc v ngoi nc.4- Phn tch v tnh ton h thng.4- Thit k v ti u ha h thng.4- Thc nghim, hiu chnh v nh gi kt qu.

1.5.2. PhtrortiK php nghin cn:Cc phng php s thc hin t c nhng mc cu rv.Ni ung 1: Kho st v nh gi nhu cu ca vic ng dng Vu chix tr bin vo cc c cu my mc trong cng nghip.A- Phng php thu thp thng tin c lm nn tng, cho ngYn cu.Tm hiu cc bi bo trong v ngoi nc nghin cu v Yrvh vc ng, dng lu cht thng minh I lu cht t bin.Ni dung 2: Nghin cu thit k b ly hp dng lu cht t b\n '4- Phng php tng hp cc nghin cu trc v hiu cht t b\en.-4- Phn tch tnh ton l thuyt v h thng."A- Thit k da trn tnh ton.Ni dung3: Nghin cu thit k b iu khin cho h thng.Phng php tng hp cc nghin cu trc diu khin t ng, v \ \ cht lng trt mng, m< 1 l cht lng trt dy. Ch rng m=\, m \v o Herschel-Bulkley ging nh m hnh do Bingham.

pi'' P thng s ny dc thit lp khi khng c t trng tc ng. Trong thct, cc thng so ny b nh hng bi t trng. Zubieta xut mt m hnhdo cho MRF da trn m hnh cht lng do Bingham kt hp vi cht lng doHerschel-Bukley. Cc m hnh ny sau c p dng trong mt s nghin cu.Trong cc m hnh trn, cc thng s Ty, fi, K, m l cc i lng ph thuc vo ttrng tc dng. e xc nh cc i lng ny theo t trng tc dng, Zubieta xut tnh ton theo cng thc sau:Y = y +(n-ZX2e-* -e'Ban(2.12)Trong Y l viet tt ca mt thng s lu bin ca MRF nh ng sut chy, nht, thong so c, h so chat lng. Gi tr ca tham s Y c xu hng t zeroen gi tri bo ha, CSY l h s momen bo ha ca Y, B l mt t trng tcdng. Cc gi tr ca Yo, Veo c xc nh t kt qu th nghim s dng phng php xp x ng cong.2.3. Cc kiu hot ng ca lu cht t bin (MRF) [5]: Kiu van:Hnh 2.1 Oa cho thy s hin th kiu van c s dng trong nhiu thit b MR ni dng chy ca lu cht t bin gia hai tm hoc trong mt ng dn c to ra bi s chnh lch v p sut gia u vo v u ra. T trng p dng vung gc vi dng chy, c dng cho vic thay i cc thuc tnh lu bin ca lu chat t bien kim sot dng chy. V vy, s gia tng ng sut chy do hoc nht lm thay i profile vn tc ca cht lng trong khong gia hai tm. Profm vn tc in hnh i vi cht lng Bingham c minh ha trong hnh 2.10b.

Magnetic fluxMRFDuctwallorfixedplate(a) concept of valve modew velocity prof Weftlnh 2.10: Ch van trong ng dung MRPro fin tc ca MRF gia hai tm song song c th c i din bi ccmi quan h sau y:

t O) = -7-7 i~6v" cc^)1+v" +1 + 1 \KZn /^y/B~ o)+^(R-Rl)+2xRtr,+M ~-)+r (3.2)d&doIaoTrong , Rdi v Rdo ln lt l bn knh trong v bn knh ngoi ca phn a, d l rng ca khe cha MRF nm gia phn a v phn v, do l rng ca khe cha MRF ti mt tr ngoi ca a, td l dy ca a, Ci v CO ln lt l vn tc gc ca trc dn v trc b dn, ye l ng sut trung bnh ca MRF trong hai mt u ca ng dn, Tyo l ng sut khi khng c t tmng tc ng v f l h s nht ca MRF, Tor l momen ma st gia trc v vng chng r (o-ring). Lu rng gi tr ca Tye ph thuc vo mt t thng sinh ra trong ng dn MRF trong khi nht sau chy do c gi nh l c lp vi t trng. Momen ma st gy ra bi vng chng r Tor c th c tnh bng cng thc:iKSii(3.3)

lch ca Vng ch ng r' cn lu rg, vn tc gc ca trc bj din l ral nho v p lc do lu ch t tc ng ln vng chng r t rt thp, fh s 0, ta c th b qua. Cngcn lu y n aP smh ra trong ng MRF ca phn b dn l rt nh, do , khng can thit nn kn vng chng r (o-ring) vi lc ln. Trong nghin cu ny,vng chong r cao su c cng 70-durometer c s dng v p lc ca vng c thit lp l 10%. Trong trng hp ny, h s /cvo khong 125N/m.3.2*2* Thiet ke toi iru b ly hp dng lu cht t bin:Trong thiet ke b ly hp dng lu cht t bin, bn cnh momen truyn dng mt van e khc rt quan trng cn c quan tm n chnh l khi lng ca b ly hp. R rng cho thy khi lng ca b ly hp dng lu cht t bin l cng nh cng tt, iu s lm gim kch thc cng nh chi ph ch to b ly hp- Ngoi ra, vic b ly hp c kch thc nh hn v khi lng nh hn c th dn n vic gim lc qun tnh, t to iu kin cho vic kim sot tc ca trc iu khin d dng hn. Ni chung, khi lng b ly hp c th c tnh xp x bi cng thc:mb VPd hPh. U ^sPs I VmrPmR + ^bobpbob + KPc(3 4)Trong , Vd, Vk Vs, m Vbob v Vc ln lt l khi lng ca a ly hp, v ly hp, trc, lu cht t bin, ng cha cun dy, v cun dy ca b ly hp. Cc thng s ny l cc chc nng quan trng ca kch thc hnh hc ca kt cu b ly hp, chng thay i sut qu trnh ti u ha. II Ph> Ps, pMR Pbobi v pc ln lt l khi lng ring ca a ly hp, v ly hp, trc, lu cht t bin, ng cha cun dy, v cun dy ca b ly hp.T , vic gii quyt vn thit k ti u ha b ly hp dng lu cht t bin trong nghin cu ny c th c tm tt nh sau: Tm gi tr kch thc ti uHUECH LIBRARYp^

Jjg c cu ly hp MR e mom en truyen ng toi a ca n xc nh bi phngI; ' , ; llllllllllllJlllllflffljak[\ - (J-)1]^, -,J+ ^4^11 A.+^3z3^.)+T1 aAdo3dahn mt momen xon cn thiet, v mc tiu ti u ha l gim thiu khi ca b ly hp MR xc nh bi phng trnh (3.4):mb ~ ^dPd + V/tPh KPs y'mrPmR + ^bobPbob + ^cPc Gi thit rng, thp Silicon c dng ch to cc thnh phn ca b ly hp MR r v ty hp. Cun dy c kch thc 21-gage (ng knh -0 51 lirim). Trong qu trnh ti u ha, dng in ti a 2.5A c cp cho cun dy Trong nghin cu ny, chng ta s dng lun cht t bin MRF132-DG c sn xut bi cng ty Lord Corporation. nht sau chy do ca MRF132-DG l 0=0.7 Pa-S, ng sut chy do ca lu cht t bin c th tnh xp x bng cngthc:Ty(Hw) = c0 + mIIfl + C3Hl (3.5)Trong phng trnh (3.5), n v ca ng sut chy do l kPa trong khi mt t trng l kA/m. p dng phng php xp x ng cong bc hai, cc h s trong phng trnh c xc nh tng ng l 0.015,0.30858,2.83544E-4, - 5 34429E-6, v 9.20846E-9.Trong ti u ha, chiu cao hc ca cun dy, chiu rng Wc ca cun dy, dy th ca v ly hp, bn knh Rdo ca a ly hp, bn knh ngoi R ca b ly hp, dy td ca a ly hp, c xem l cc bin thit k. cn lu rng, cc gi tr kch thc dy khe cha lu cht cng nh th lc hm cng cao v khi lng ca b ly hp thu c cng nh. V th, trong nghin cu ny, dy ca khe cha MRF khng c xem nh bin thit k m c thc nghim thit lp l 0.8mm. c c li gii ti u, ta s dng phng php phn t hu hn tch hp vi mt cng c ti u ha. Trong nghin cu ny, phng php ti u bc nht ca cng c ti u ha ANSYS c s dng.

Trong hlnh 3.2 cho thy lri gii ti uru ca ly hp MR c xut_ Momen am rng buc phi ln hom ONm v tc d hi t uc thit p l. 0.\/o. CYuicmg, -njj tnh ton bng phn ANSYS uc trnh by trong phn phv \c l.

(a) bin thit k(b khi \ng v momen tc ngHnh 3.2: Li gii ti u ca ly hp MR thng thngCn lu rng bn knh trc trong trmg hp ny dc t Vp \ Rs = 6mrrt ng vi sc chu ng ca trc. Nh th hin trong Ynh, ti u ha dc Yv'\ t sau 21 ln lp. Kt qu ti u ti ln lp th 21 l (tran): -Wc=5.7, hc=2.7, th=5.9, d4, Rdo50 v R=59.5. Ti thi im ti u, momen xon truyn dng, c th dt n 1 OkN nh t ra v khi lng ti thiu, l 1 -34kg. T gii p\\p ti VU, YcYv thc hinh hc ti u ca b ly hp MRc th c tm tt trong, bng, 3> A.Bng 3.1: Kteh thc hnh hc ti u ha ca b ly hp MRNameValueName \\Ja\ue \

Bn knh trc dnRs=6mmChiu cao cun dv \h(rl7mm \

Bn knh a quayRdo=SOmm Chiu rng cun dv \Wc=5.7mm \

dy a quaytd=4mm dy v \hh=s.9mm \

Kch thc khe MRd, c/o=0.8mm\ Bn knh ngo\R=59.5mm \

Vi cc kch thc c tnh ton nh i, bn v thit k c\ tit ca b ly hp c xy dng v trnh by trong phn ph lc 2.

CIiNG 4plU KHIN LY HP MR C s tnh ton bl ton iu khin:Trong phn ny, phucrng, trnh cHuyn Tg, ca trc b\ dn 4\IJC \p.Tron hnh 3.11 phng trnh iu khin cV\o cc cYuryn g, c\xa \rc Vj\ dcM\ c6 \ c vit nh sau:J>=TTfTX)Trong , J l momen qun tnh khi quay ca trc b\ dan, bao gomi c. Vy ip MR v ti, T l momen ma st tc ng \n trc b\ dn, T m moma xottY truyn ng ca ly hp MR, Ti l lc ti, v co \ vn tc gc ca trc.K-t hp phng trnh (3-2) v phng tr'mh i.y) ta dc pVoYg, tc\tv chuyn ng sau:J(D + C Ty Tfc TfT,(4.T)Trong , h s nht c, momen ng sut chy o (momeiv xorv diu khin c) Ty v momen ma st ly hp Tfc tng ng c xc dtv bng, cng,

0lfth 4-1: Thit lp thc nghim kim tra momen truyn ng ca y hp

Hnh 4.2: M men truyn ng ca ly hpHnh 4.1 m t cc thit lp th nghim kim a hiu sut caYy YvpMB- Trong hnh, mt ng c c ni vi b ly hp iu khlrv bng my th dc s dng quay trc dn ca ly hp MR vi mt tc gc khng di \ 30 vng/pht. V ca b ly hp c gi c nh vo bn th nghim. Trong, \rum% hp ny, b ly hp MR hot ng nh mt phanh MR. Momen xon dc to rabv ly hp MR c o bng mt cm bin momen xon. Tiu hiu u ra t b cm bin momen xon sau c gi n my tnh thng qua b chvyv d\ D. Y^vv

qu trnh lili nghim dc (hc hin, mt tn hiu xung dng din t Iiny nli c gi en cc b kluch i dng, Tn hiu dng in ng ra ca b khuch di(ii, III mt xung dng 2.5A c cp vo cun dy ca b ly hp MR v g tr trung bnh ca mom en xon o trng thi n nh c xc nh.Hnh 4,2 cho lliiy nioinen do ng sut chy ca b ly hp MR dll (lc do tr th nghim trn, cn liru rng trong trng hp ny momen lc (lng tc ng bng khng c loi b trong kt qu. Kt qu cho thy rng mom en trug sut chy ca ly hp MR b| bflo ha khi dng in cp vo tng trn 2A. Mt ng cong xap x hm m (1H (lc s dng v momen do ng sut chy (momen c th iu khin c) ca ly hp MR c biu din nh mt hm ca dng in cp vo nh sau:Ty(Nm) = 10.13-10.05e'(/+2O2)/75(4.5)Vn iu khin ca nghin cu ny l t c qu o tc d mong mun. Hnh 4.3 cho thy cc thit b th nghim v thit b o c dng cho vic iu khin v theo di tc . Tc quay c o bng cc my pht tc (SANYO DENKI, 104-8011-1) v c hi tip li h thng thi gian thc LAPVIEW thng qua b chuyn i A/D. Tip , dng iu khin c xc nh t b iu khin c cp vo h thng ly hp MR thng qua b chuyn i D/A v cc b khuch i. iu khin vn tc gc ca trc b dn, b iu khin PID ri rc c p dng nh sau:u(k)Ikpe{k)Is^e)Ikd-(4.6)1=0STrong , kp, ki, kd ln lt l h s khu khuch i, khu tch phn v khu vi phn, Ts l thi gian ly mu v e(k) sai s bc th k. S khi ca h thng iu khin c trnh by trong hnh 4.4. Trong nghin cu ny, xc nh cc tham s ca b iu khin PID, ta s dng phng php th-sai ln lt cc thng s kp, kd, ki chn ra thng s tt nht cho b iu khin tc b ly hp dng lu cht t bin.

1 *+vMm=*i> gSySjggji '-^ 1/7/f/i - S " * i" H ut chy IM dng )n ato oo u trong b ly hp. T c nhn %* vk m 0 v/cc tnh ChL dfl nu 0 b ly hp dng lau ch t bin.5.1. Kl qui l ilvii mA hlnli I kho st:5.1.1. Klirto H{\i lum dAiiDng c v h thng cp in cho c gp c g lONm vi kch thuc cng tvi khx lng ca b ly hp l nh nht.iu khien c h thng ly hp dng b truyn ng Jira cht t bin bng b iu khin PID.i- Kt qu thc nghim chng minh c tnh kh thi ca gii php A tgjnv6 2. Hng pht trin:T kt qu kh quan ca m hnh thc nghim, lun vn c tat s n %pht trin nh sau:4- M rng bi ton cho trng hp ti tng qut.4- M rng bi ton iu khin cho yu cu bn vng.

('hinmi; trlnh tinh to&n toi tru bQ ly hyp dilng phikn mem \NSVS:MPREAD ,'MR.l 32DG .'SIMPL' | ,\_AB'.MPREA.D,MR\ 40CG' ,S\MPE| ,UB'.MPREA.D,MR\222BD','S\_MP'L',',LIBKEYOPT, 1,1,0 KEYOPT, 1,2,0 KEYOPT, 1,3,1 KEYOPT, 1,4,0 KEYOPT, 1,5,0I*I*MAT,1,!MPREAD,'hiperco7SI_MPLV ,L1B MPREAD,'siliconsteer,'SI_MPL',' ',LIBI*MAT,2,! MPREAD,'hiperco','SI_MPL'',LIB MPREAD,'siliconsteel' ,'SI_MPL'' ,L1BMAT,5,

thc=(L-bc)/2 \LSTR,11

ntum=hc*bc/Aci LSTR,\9,20

Rc=rrc* nturn* 3.1416*2* (Ro+d+0. 5* he)\ LSTR,4,\&

1=2.5\ LSTR,4,&

JJ=I/Ac\ LSTR,%12

PP=I*I*RcJ*K,l,Ri,-(th+d+b/2)K,2,R,-(th+d+b/2)K,3,R,(th+d+b/2)K,4,Ri,(th+d+b/2)K,5,Ri,-(d+b/2)K,6,Rw,-bc/2K,7,Rw,bc/2K,8,Ri,(d+b/2)K,9,Ri,-b/2K,10,Ro,-b/2K,ll,Ro,b/2

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(PSi*,;^^,7,14I AL,P5,x 5LST,2,44I 1,2,18 HbijftrBta,2,i4I ^AI''P5'1XPLS^,4,4HpFITEK29FITBH2,sFITEH2,16^PsixFLST.2,4,4F1TEKi,2 11 FTEM,2,24HfeffaKIM,2,23 ALJSIXfggi,2,4,4FiTEM,2,22FITbH2,12^ToIEBPrrEM,s -5 CHJi, ,P51X ,area S_YCMsa,s, Ylaatt, t .;a CMs,s, Y '' "CMdele~yCkELE,Y1t*C^YlAREA ggf 6 'tmcmsel,s, y !*CMsEL,S, Yl2* * i. CMSEL,sacmdele'y

m H lom* mm,PJ MnQCAtt>ELE,CMDELEI*FLSTMs,ORDE2 fitem,5,7fitem,5,-9FITEN,5 3 plTEM,59Fitem,5,15FnBM55,-i6 FITEM,5,19CM>JaiNE LSEL,, j ,P51XcKjyi,unecmsel_y*LESIZE,_Y1, , ,3.5*nO !*FLST,5,14,4,ORDE,ll

Fl7%Hi4pitbaisFITEM}5}23FITEM,5,-24

fitem,5,-24 CM,_y,LlN LSEL,,,>>SlxCMSEL' Y $f A.I*FLST>S>6,4>o^>FITEM,5,2, J I FITEM,^||| FITEM.SA1 FITEMs13 FITEM,5 "]7. 7 'FITEM, 5,22cm,_y,lineLSEL, j I ,P51X CMJ|1,Une CMSEL_y * HLESIZE,_Yl,,52*rvO,IIt|MSHAPE,0,2DMSHKEY,0AMESl,att I asum,deauHIxTKlSH h Giai bai toan /SOUUIFLST ,1,\ ,5 ,OKE,\[fitem,1,\\I BT?A,Y5VXJS, 1,13,0 IfLST,2,\2,4,OKDEAItTTEM,2,\ITEM,2,-S ITEM,2,21 PTTEM,2,-30 D1.^5\x, AZ, I tiCNV ,0,0,0,0,0,SOLVE FDS1SHI Xuatket qua-v/a-XriaX-oarv/omSET,IASI mp? A. A ,0ISi

Yu cu k thut-Vt mp cc trc R=0.5 -Cc kch thc khc 0.2

Yu cu k thut:-Vt mp cc trc R=0,5 -Vt 2 u trc 0.5x45I -Dung sai 012-0.03 -Cc kch thc khc 0.2

TRC DN V

Bc na ly bpL bm lu chtTrc b dn

Cun dyL x dy 02Tn chi titHV1H Trn y NghiGVHD Nguyn Quc Hung

TRNG H CNG NGH TPHCMHnh 2.2: Phanh ng dng lu cht t bin

v gim chn Cun dy

Mch t

Rubber

Element

Upper

Chbc

- MR Valve Body Separator Ring Majpetic Circuit

Hnh 2.5: Gng tay MR

(2.5)

(2.6)

w20) =

A*1

Cun

Hnh 3.1: Nguyn l hot ng b ly hp dng lu

V c |nh

a ly hp

Trc dn

Truyn t C

t bin

cht

CHNG 3

thit k b ly hp dng lu cht Ttr BIN

3 1 Nguyn ho*t ?"B:

TC mongnrui5n cod

\tc \

w hp \t6c Q tVvc t MS

V

Dtwen shaft speed \RPW\

ControUnpuU^

y>

ts>

O

s>

s

90

St

>/

s

*

&>

3

Ox

3

St

"S'

T\rr\e (sec^

a*

>

3

C

s

a

o-

>

a.

(%v

r(p

2 5.

n>< o

s

Driven Shaft Speed (rpm)

Control \nput (kVImm)

Driven shaft Speed (rpm)

H

_ c o >,

^ a

s ;s*

y

Ui to *

3rfe

>s

S 9q QTQ

rev a

g,

aks-

S*

>S.u>

JS^

Is S

a s w

=' f- 5- 'S !sf|

32,*

*

3

OTO

/COM. Magnetic-Nodal /COM. Magnetic-Edge

I*

/PREP 7 !*

ET,1,PLANE 13 i*

MPTEMP,,

MPTEMP,1,0

MPDATA,MURX,3\

MPTEMP,,,,,,,,

MPTEMP,1,0 MPDATA,MURX,4\ pi=3.1416 dc=0.000511 res=0.01726e-6 Ac=pi*dc*dc/4 rrc=res/A.c th=&e-3 to=8e-3

hc=4e-3\ Coi\ hieght b=6e-31 disc thickness bc=fte-3 \ Coil thickness d=0.000&

do-0.0008

tbob-0.0005 .bobbin

R-6C-3

Ro=50e-3

Rd=Ro+d Rb=Rd+tbob Rw=Rb+hc R=Rw+to I =(2*th+b+2*d)

K,\2,Ri,b/2

K,\3 ,Rd,-(d+b/T) K,\4,Rd,(d+b n.),

K,\ 5 ,Rb,-bcf2

K.,16,Rb,bcII,,

K.,17 ,Rd,-(th+d+b/2'),

K,v &,Rd,Cth+d+b/T) K,19,R,-bc/2 K,20,R,bc/2

K

7,

6,

iS,

iS,

J 6, ^ 13,

20

19

16

13

17

CM

Jti

CMsel.

pi

Asfcj|_

n Y,

cmsel

**REa

1 > 1|

I^REa

cmsel

^tt, I

CMSBL,S, Y

Cfcfc>ELE

CME>ELE, Y!

il

Cv; - M

Ma

wm

CH y Ar7 >A^a

yi

p

TaO=2*pi*TRo* *2*l.a* (tyO+miO* OMR o/do)

* O-ring friction torque Rso-Ri

Tor-0.n5l*700*2*piRso*Kso Zero field Torque TbO=(TmO+TbyO+TaO+l*Tor)

pcalcjINto^

-GKT.Bliii;- 32av=abs !DG fluid

B2av=absCBllN./:,last.BlN vRo-^

ty2=400'l5.4QnITbOCTmO+TtoyO+TaO+2*

eXp(i*2-^fflHfe-a.9*B2v). \ ' Transtntsion Torque

1U12..3.9.J 8.

2*4 3*82.,)) nu0=0.1 ty0=15 , ;

!cG FLUID

ML||

!nu0=0.3 !ty0=25 ;

OM=l()*pi

La=b

Tm=4*pi*ty2*(R0**3-Ri**3)/3

Tby=(pi*nu2*Ro* *4/d)* (1 - (Ri/Ro)**4)*OM

Tm0=4*pi*ty0* (Ro* * 3 -Ri* * 3)/3

TbyO~(pi*nuO*Ro**4/d)*(l - (Ri/Ro)**4)*OM

rb=CTm+Tby+TaO+2*Tot)

(l Mass calculation *GET,AA,ASEA,\,AKEA 1*GET,A2,ASEA,2,AREA.

I dmass^i*(Ro**2-fci**2)*\>*l%00

I MRmass=2*p\%Ro**2-Ri**2y*2950 |\ (DG-.2950kg/m3; CG: 3>600\tg/mY)

coilmass=pi* (Rw)**2- Rb)**2)*(]bc)*%900

hmass3=pi*((Ry*2- (Rw)**2)*(bc)*l%00

hmassl=A\*4*pv*(^i-v^-R)l'iyi%^

bmass2-A2*4*\*R.H^-^l2yim

hmass3=2*tbob*bc*p\*^n)oo\>l2yi%

00

shaftmass=p\*R**2*\J*%0Q01 stariVess steel ot brass

mass=dmass+MRmass^co\\mass+\vTtvass Hbmass2+bmass3+s\va&mass

Trn y Nghi

26/03/14

HVTH

Nguyn Quc Hung

GVHD

NP DI

Yu cu k thut:

-Vt mp cc trc -Vt 2 au trc 0.5x45

I -Cc kch thc khc db0.2

NP TRN

/

/

HVTH Trn Uy Nghi

Nguyn Quc Hu

GVHD

HVTH / Trn Uy Nghi 26/03/141 GVHD ^gun Quc Hum

*a?vc

Thp cit

Trc dn

Thp cch t

Caosu0\2-02fc-5

Tpttnh

Pht chn du

V ly hp

26/03/14

BN VE LAP