2507 simbi isina tsvina coil chubhu kemikari chikamu, Yakaenzana Thermal Network Simulation Kudzidza yeRare Earth Giant Magnetostrictive Transducer.

Ndatenda nekushanyira Nature.com.Uri kushandisa shanduro yebrowser ine tsigiro shoma yeCSS.Kuti uwane ruzivo rwakanyanya, tinokurudzira kuti ushandise browser yakagadziridzwa (kana kudzima Compatibility Mode muInternet Explorer).Pamusoro pezvo, kuti tive nechokwadi chekutsigira kunoenderera, tinoratidza saiti isina masitaera uye JavaScript.
Masiraidhi anoratidza zvinyorwa zvitatu pane siraidhi.Shandisa mabhatani ekumashure neanotevera kufamba nemumasiraidhi, kana mabhatani ekudzora masiraidhi ari kumagumo kuti ufambe nemumasiraidhi ega ega.

• Product Description
• 2507 Stainless simbi yakakoswa tubing kubva kuchina

Yakakosha kune dhizaini yegiant magnetostrictive transducer (GMT) inokurumidza uye yakarurama ongororo yekugovera tembiricha.Thermal network modeling ine zvakanakira yakaderera computational mutengo uye yakakwirira kurongeka uye inogona kushandiswa GMT thermal kuongorora.Zvisinei, mamodheru aripo anopisa ane zvisingakwanisi pakutsanangura idzi dzakaoma dzehutembiricha muGMT: zvidzidzo zvakawanda zvinotarisa kune dzakamira dzisingakwanisi kutora shanduko yekushisa;Zvinowanzo fungirwa kuti kugovera kwekushisa kwegiant magnetostrictive (GMM) tsvimbo kwakafanana, asi tembiricha yekushisa mukati meGMM rod yakakosha zvikuru nekuda kwekushata kwekupisa kwekupisa, iyo isiri-uniform kurasikirwa kugovera kweGMM haiwanzo kuunzwa mukupisa. model.Naizvozvo, nekunyatsoongorora zvinhu zvitatu zviri pamusoro apa, gwaro iri rinogadza muenzaniso weGMT Transitional Equivalent Heat Network (TETN).Kutanga, zvichibva pane dhizaini uye musimboti wekushanda kweiyo longitudinal vibratory HMT, kuongororwa kwekupisa kunoitwa.Pahwaro uhwu, iyo yekudziya element modhi inotadzikwa yeiyo HMT kupisa kwekufambisa maitiro uye inoenderana modhi paramita inoverengerwa.Chekupedzisira, huchokwadi hweiyo TETN modhi ye transducer tembiricha spatiotemporal ongororo inosimbiswa nekuenzanisa uye kuyedza.
Iyo giant magnetostrictive material (GMM), inonzi terfenol-D, ine zvakanakira magnetostriction yakakura uye yakanyanya simba density.Izvi zvakasiyana-siyana zvinogona kushandiswa kugadzira giant magnetostrictive transducers (GMTs) iyo inogona kushandiswa mune zvakasiyana-siyana zvekushandisa zvakadai sepasi pemvura acoustic transducers, micromotors, linear actuators, nezvimwewo 1,2.
Kunyanya kunetseka ndiko kukwanisa kupisa kwepasi pesea GMTs, iyo, iyo inoshandiswa nesimba rakazara uye kwenguva yakareba yekukurudzira, inogona kuunza huwandu hwakawanda hwekupisa nekuda kwesimba ravo repamusoro density3,4.Mukuwedzera, nekuda kwehuwandu hwehuwandu hwekuwedzera kwekushisa kweGMT uye kunzwisiswa kwayo kwepamusoro kune kunze kwekushisa kwekunze, kubuda kwayo kunoenderana zvakanyanya nekushisa5,6,7,8.Muzvinyorwa zvehunyanzvi, nzira dzeGMT dzekuongorora kupisa kwemafuta dzinogona kukamurwa kuita mapoka maviri akafara9: nzira dzenhamba uye lumped parameter nzira.Iyo finite element method (FEM) ndiyo imwe yeinonyanya kushandiswa nzira dzekuongorora nhamba.Xie et al.[10] akashandisa iyo inogumira chinhu nzira kutevedzera kugoverwa kwezvitubu zvekupisa kwegiant magnetostrictive drive uye akaziva dhizaini yekudzora tembiricha uye kutonhora system yekutyaira.Zhao et al.[11] yakagadzira yakabatana inogumira chinhu simulation yemhepo ine mhirizhonga yekuyerera uye tembiricha munda, uye yakagadzira yeGMM yakangwara chikamu chekudzivirira tembiricha mudziyo zvichienderana nemhedzisiro yeinogumira chinhu simulation.Nekudaro, FEM iri kuda zvakanyanya maererano nekumisikidzwa kwemuenzaniso uye nguva yekuverenga.Nechikonzero ichi, FEM inoonekwa seyakakosha tsigiro yekuverenga zvisiri pamhepo, kazhinji panguva yekushandura dhizaini chikamu.
Iyo lumped parameter nzira, inowanzonzi heat network modhi, inoshandiswa zvakanyanya mukuongorora kwe thermodynamic nekuda kweiyo nyore fomu yemasvomhu uye yakakwirira calculation speed12,13,14.Iyi nzira inobata basa rinokosha pakubvisa kupisa kwemagetsi ejini 15, 16, 17. Mellor18 ndiye akatanga kushandisa yakagadziridzwa inopisa yakaenzana nedunhu T kuti ienzanise injini yekufambisa kupisa.Verez et al.19 yakagadzira matatu-dimensional modhi yeinodziya network yeanogara magineti synchronous muchina ane axial kuyerera.Boglietti et al.20 vakakurudzira mhando ina dzekudziya network dzemhando dzakasiyana-siyana dzekufungidzira kufanotaura kwenguva pfupi yekupisa kwemhepo mu stator windings.Pakupedzisira, Wang et al.21 vakagadzira yakadzama yekupisa yakaenzana sedunhu kune yega yega chikamu chePMSM uye vakapfupisa kupisa kwekupisa equation.Pasi pemamiriro ezita, kukanganisa kunogona kudzorwa mukati me5%.
Mumakore ekuma1990, modhi yekudziya network yakatanga kushandiswa kune high-power low-frequency converters.Dubus et al.22 vakagadzira heat network modhi kurondedzera yakamira kupisa kuchinjika mune kaviri-sided longitudinal vibrator uye kirasi IV bend sensor.Anjanappa et al.23 vakaita 2D stationary thermal analysis yemagnetostrictive microdrive vachishandisa thermal network model.Kudzidza hukama pakati pekupisa kweTerfenol-D uye GMT paramita, Zhu et al.24 yakagadzira yakatsiga mamiriro akaenzana modhi yekupisa kwekupisa uye GMT kusimuka kwekuverenga.
GMT tembiricha fungidziro yakaoma kupfuura injini yekushandisa.Nekuda kweiyo yakanakisa yekupisa uye magineti conductivity yezvinhu zvakashandiswa, akawanda ejini zvikamu zvinotariswa pane imwechete tembiricha zvinowanzoderedzwa kuita imwechete node13,19.Nekudaro, nekuda kwehurombo hwekupisa kweHMMs, fungidziro yekugovera tembiricha yakafanana haisisiri yechokwadi.Pamusoro pezvo, HMM ine yakaderera magineti permeability, saka kupisa kunokonzerwa nekurasikirwa kwemagineti kazhinji kusiri-uniform pamwe neHMM tsvimbo.Pamusoro pezvo, tsvakiridzo zhinji yakanangana nekutsiga-mamiriro ekuenzanisa ayo asingaverenge nezvekuchinja kwekushisa panguva yekushanda kweGMT.
Kuti ugadzirise matambudziko matatu ari pamusoro pehunyanzvi, chinyorwa ichi chinoshandisa GMT longitudinal vibration sechinhu chekudzidza uye nenzira kwayo inoenzanisira zvikamu zvakasiyana-siyana zvetransducer, kunyanya GMM rod.Muenzaniso weiyo yakazara shanduko yakaenzana kupisa network (TETN) GMT yagadzirwa.Iyo inogumira chinhu modhi uye chikuva chekuyedza chakavakwa kuti chiedze huchokwadi uye kuita kweTETN modhi ye transducer tembiricha spatiotemporal ongororo.
Magadzirirwo uye geometric dimensions ye longitudinally oscillating HMF inoratidzwa muFig. 1a uye b, zvichiteerana.
Zvikamu zvakakosha zvinosanganisira tsvimbo dzeGMM, makoiri emumunda, magineti echigarire (PM), majoko, mapadhi, bushings, uye zvitubu zvebelleville.Iyo yekukurudzira coil uye PMT inopa iyo HMM tsvimbo ine inochinjika magineti uye DC bias magineti munda, zvichiteerana.Joko nemuviri, zvinosanganisira cap uye sleeve, zvakagadzirwa neDT4 simbi yakapfava, iyo ine yakakwirira magineti permeability.Inogadzira yakavharwa magineti wedunhu neGIM uye PM tsvimbo.Iyo inobuda hunde uye kudzvanywa ndiro inogadzirwa neasiri-magnetic 304 simbi isina tsvina.Nezvitubu zvebelleville, prestress yakagadzikana inogona kuiswa kune stem.Kana yazvino inotsinhana ichipfuura nepakati pedhiraivha coil, iyo HMM tsvimbo inozunguza zvinoenderana.
Pamusoro pemuonde.2 inoratidza maitiro ekupisa kupisa mukati meGMT.GMM rods uye munda coils ndiwo maviri makuru manyuko ekupisa kweGMTs.Nyoka inotamisa kupisa kwayo kumuviri nemhepo inotenderedza mukati uye kuchivharo nekufambisa.Iyo HMM tsvimbo ichagadzira kurasikirwa kwemagineti pasi pechiito cheanotsinhanisa magineti, uye kupisa kunozoendeswa kune goko nekuda kwekutenderera kuburikidza nemhepo yemukati, uye kune isingaperi magineti uye joko nekuda kwekufambisa.Kupisa kunoendeswa kukesi kunozobviswa kunze ne convection uye nemwaranzi.Kana kupisa kunogadzirwa kwakaenzana nekupisa kunotamirwa, kutonhora kwechikamu chimwe nechimwe cheGMT kunosvika pakugadzikana.
Iyo nzira yekupisa kupisa muGMO yakarebesa oscillating: a - kupisa kuyerera kwedhiyagiramu, b - nzira huru dzekupisa kupisa.
Pamusoro pekupisa kunogadzirwa neiyo exciter coil uye HMM tsvimbo, zvese zvikamu zveyakavharwa magineti wedunhu zvinosangana nekurasikirwa kwemagineti.Saka, magineti echigarire, joko, chivharo uye sleeve zvakanamirwa pamwe chete kuti kuderedze kurasikirwa kwemagineti kweGMT.
Matanho makuru ekuvaka muenzaniso weTETN weGMT thermal analysis ndeaya anotevera: zvikamu zvekutanga zveboka zvine tembiricha imwechete pamwe chete uye zvinomiririra chikamu chimwe nechimwe senge node yakaparadzana mumambure, wozobatanidza node idzi nekutaura kwakakodzera kwekupisa kupisa.kupisa conduction uye convection pakati nodes.Muchiitiko ichi, nzvimbo yekupisa uye kubuda kwekushisa kunoenderana nechikamu chega chega zvakabatanidzwa mukufanana pakati pe node uye inowanzoitika zero voltage yepasi kuti ivake muenzaniso wakaenzana wetiweki yekupisa.Nhanho inotevera ndeyekuverenga ma parameter eiyo thermal network yechikamu chimwe nechimwe chemuenzaniso, kusanganisira kupisa kwekupisa, simba rekupisa uye kurasikirwa kwesimba.Chekupedzisira, iyo TETN modhi inoitwa muSPICE yekufananidza.Uye iwe unogona kuwana kugoverwa kwekushisa kwechimwe nechimwe chikamu cheGMT uye shanduko yayo mudura renguva.
Kuti zvive nyore kuenzanisira uye kuverenga, zvinodikanwa kurerutsa muenzaniso wekupisa uye kusava nehanya nemiganhu yemiganhu ine zvishoma pamigumisiro18,26.Iyo TETN modhi yakatsanangurwa muchinyorwa ichi yakavakirwa pane zvinotevera fungidziro:
MuGMT ine maronda anomonereka mhepo, hazvigoneke kana zvakakosha kutevedzera chinzvimbo chemunhu wega conductor.Nzira dzakasiyana-siyana dzekuenzanisira dzakagadzirwa munguva yakapfuura kuenzanisa kupisa kwekushisa uye kugoverwa kwekushisa mukati memhepo: (1) musanganiswa wekupisa kwemhepo, (2) equations yakananga inobva pane conductor geometry, (3) T-yakaenzana thermal circuit29.
Composite thermal conductivity uye yakananga equations inogona kunzi mhinduro dzakajeka kupfuura yakaenzana dunhu T, asi zvinoenderana nezvakati wandei, senge zvinhu, conductor geometry uye huwandu hwemhepo yakasara mumhepo, izvo zvakaoma kuziva29.Pane zvinopesana, iyo T-yakaenzana thermal scheme, kunyangwe iri fungidziro modhi, iri nyore30.Inogona kuiswa kune iyo yekunakidzwa coil ine longitudinal vibrations yeGMT.
Iyo general hollow cylindrical assembly inoshandiswa kumiririra iyo exciter coil uye yayo T-yakaenzana yekupisa dhiyagiramu, yakawanikwa kubva mumhinduro yekupisa equation, inoratidzwa mufig.3. Zvinofungidzirwa kuti kupisa kunopisa mumutsara wekukurudzira kunozvimiririra mune radial uye axial mazano.The circumferential heat flux inoregeredzwa.Muchikamu chega chega chakaenzana T, materminals maviri anomiririra tembiricha yepamusoro yechinhu, uye yechitatu terminal T6 inomiririra avhareji tembiricha yechinhu.Kurasika kwechikamu cheP6 kunopinzwa sepoindi sosi paavhareji tembiricha node yakaverengerwa mu "Field coil heat loss calculation".Muchiitiko chekusamira-simulation, simba rekupisa C6 rinopiwa nekuenzanisa.(1) inowedzerwawo kune Avhareji tembiricha node.
Ipo cec, ρec uye Vec inomiririra chaiyo kupisa, density uye vhoriyamu ye coil yekukurudzira, zvichiteerana.
Mutafura.1 inoratidza kupikisa kwekushisa kweT-yakaenzana nemhepo inopisa ye coil yekukurudzira ine urefu lec, thermal conductivity λec, kunze radius rec1 uye mukati meradius rec2.
Exciter coils uye T-yakaenzana thermal circuits: (a) kazhinji hollow cylindrical elements, (b) patsanura axial uye radial T-yakaenzana thermal circuits.
Iyo yakaenzana yedunhu T yakaratidzawo kuve yakarurama kune mamwe cylindrical heat source13.Kuve iyo huru yekupisa sosi yeGMO, iyo HMM tsvimbo ine isina kuenzana yekugovera tembiricha nekuda kwekudzika kwayo kwekushisa conductivity, kunyanya pamwe neaxis yetsvimbo.Pane zvinopesana, radial inhomogeneity inogona kuregeredzwa, sezvo radial kupisa kuyerera kweHMM tsvimbo iri shoma pane iyo radial kupisa flux31.
Kuti unyatso kumiririra chiyero cheaxial discretization yetsvimbo uye kuwana tembiricha yepamusoro, tsvimbo yeGMM inomiririrwa nen node dzakafanana dzakapatsanurwa munzira yeaxial, uye nhamba yemanodhi n inofananidzwa neGMM tsvimbo inofanira kunge isinganzwisisike.Huwandu hweakaenzana axial thermal contours ndeye n T nhamba 4.
Kuti uone huwandu hwenodhi n inoshandiswa kuenzanisira GMM bar, mhedzisiro yeFEM inoratidzwa mufig.5 sechirevo.Sezvinoratidzwa mufig.4, nhamba yemanodhi n inodzorwa muchirongwa chekupisa cheHMM tsvimbo.Imwe neimwe node inogona kuenzanisirwa seT-yakaenzana sedunhu.Kuenzanisa migumisiro yeFEM, kubva kuFig. 5 inoratidza kuti node imwe kana nhatu haigoni kunyatsoratidza kugoverwa kwekushisa kweHIM tsvimbo (inenge 50 mm kureba) muGMO.Kana n inowedzerwa kusvika ku5, mhedzisiro yekufananidza inovandudza zvakanyanya uye inoswedera kuFEM.Kuwedzera n mberi kunopawo mhedzisiro iri nani pamutengo wenguva yakareba yekuverengera.Naizvozvo, mune ino chinyorwa, 5 node dzinosarudzwa kuenzanisa iyo GMM bar.
Kubva pakuenzanisa kuongororwa kwakaitwa, iyo chaiyo yekupisa chirongwa cheHMM tsvimbo inoratidzwa mumufananidzo 6. T1 ~ T5 ndiyo yevhareji yekupisa yezvikamu zvishanu (chikamu 1 ~ 5) chedanda.P1-P5 maererano inomiririra simba rose rekupisa kwenzvimbo dzakasiyana-siyana dzetsvimbo, iyo ichakurukurwa zvakadzama muchitsauko chinotevera.C1 ~ C5 isimba rekupisa rematunhu akasiyana, anogona kuverengerwa neinotevera formula
uko crod, ρrod uye Vrod inoreva chaiyo kupisa huwandu, density uye vhoriyamu yeHMM tsvimbo.
Uchishandisa nzira yakafanana neyeiyo exciter coil, kupikisa kupisa kweiyo HMM tsvimbo muFig. 6 inogona kuverengerwa se.
uko lrod, rrod uye λrod zvinomiririra kureba, radius uye thermal conductivity yeGMM tsvimbo, zvichiteerana.
Kune iyo longitudinal vibration GMT yakadzidzwa mune ino chinyorwa, izvo zvakasara zvikamu uye mhepo yemukati inogona kuenzanisirwa ine imwechete node configuration.
Idzi nzvimbo dzinogona kutariswa sedzinoumbwa neimwe kana kupfuura silinda.Iko kungoita conductive heat exchange connection mucylindrical part inotsanangurwa neFourier heat conduction law se.
Apo λnhs ndiyo thermal conductivity yechinhu, lnhs ndiyo axial kureba, rnhs1 uye rnhs2 ndiyo yekunze uye yemukati radii yechinhu chinopisa kupisa, zvichiteerana.
Equation (5) inoshandiswa kuverenga iyo radial thermal resistance kune idzi nzvimbo, inomiririrwa neRR4-RR12 muMufananidzo 7. Panguva imwecheteyo, Equation (6) inoshandiswa kuverenga axial thermal resistance, inomiririrwa kubva kuRA15 kusvika kuRA33 muMufananidzo. 7.
Kupisa kwesimba reimwe node thermal circuit yenzvimbo iri pamusoro (kusanganisira C7-C15 mumufananidzo 7) inogona kutsanangurwa se
uko ρnhs, cnhs, uye Vnhs ndiko kureba, chaiyo kupisa, uye vhoriyamu, zvichiteerana.
Iyo convective kupisa kwekufambisa pakati pemhepo mukati meGMT uye pamusoro pekesi uye nharaunda inoteedzerwa neimwechete thermal conduction resistor sezvinotevera:
apo A ndiyo nzvimbo yekubata uye h ndiyo yekufambisa kupisa coefficient.Tafura 232 inonyora mamwe akajairika h anoshandiswa mumasisitimu ekupisa.Maererano neTafura.2 kupisa kwekutamisa coefficients yekupisa kwekupokana RH8-RH10 uye RH14-RH18, inomiririra convection pakati peHMF uye nharaunda mune fig.7 inotorwa semutengo unogara uripo we25 W/(m2 K).Iwo asara ekutamisa kupisa coefficients akaiswa akaenzana ne10 W/(m2 K).
Zvinoenderana neyemukati kupisa kwekutamisa maitiro kunoratidzwa muMufananidzo 2, iyo yakazara modhi yeTETN inoshandura inoratidzwa muMufananidzo 7.
Sezvinoratidzwa mufig.7, iyo GMT longitudinal vibration yakakamurwa kuita gumi nematanhatu mapfundo, anomiririrwa nemavara matsvuku.Nzvimbo dzekushisa dzinoratidzwa mumuenzaniso dzinoenderana neavhareji tembiricha yezvikamu zvinoenderana.Ambient tembiricha T0, GMM tsvimbo tembiricha T1 ~ T5, exciter coil tembiricha T6, zvachose magineti tembiricha T7 uye T8, joko tembiricha T9 ~ T10, kesi tembiricha T11 ~ T12 uye T14, indoor mhepo tembiricha T13 uye goho tsvimbo tembiricha T15.Mukuwedzera, node imwe neimwe yakabatanidzwa kune simba rinopisa repasi kuburikidza neC1 ~ C15, iyo inomiririra simba rekupisa kwenzvimbo imwe neimwe, maererano.P1~P6 ndiyo yakazara kupisa kubuda kweGMM tsvimbo uye exciter coil zvichiteerana.Mukuwedzera, 54 kupisa kwekushisa kunoshandiswa kumiririra conductive uye convective kuramba kune kupisa kutengesa pakati pemanodhi ari pedyo, ayo akaverengwa muzvikamu zvekare.Tafura 3 inoratidza akasiyana-siyana ekupisa maitiro ezvinoshandura zvinhu.
Kufungidzira kwakaringana kwemavhoriyamu ekurasikirwa uye kugovera kwavo kwakakosha pakuita inovimbika yekupisa yekufananidza.Kurasikirwa kwekupisa kunogadzirwa neGMT kunogona kukamurwa kuita yekurasikirwa kwemagineti yeGMM rod, iyo Joule kurasikirwa kweiyo exciter coil, iyo mechanical kurasikirwa, uye kuwedzera kurasikirwa.Iko kurasikirwa kwekuwedzera uye kurasikirwa kwemuchina kunofungidzirwa kudiki uye kunogona kuregeredzwa.
Iyo ac excitation coil kuramba inosanganisira: iyo dc kuramba Rdc uye kupikisa kweganda Rs.
uko f uye N ari frequency uye nhamba yekutendeuka kweiyo excitation current.lCu uye rCu ndiyo mukati nekunze radii yecoil, kureba kwecoil, uye radius yemhangura yemagineti waya sekutsanangurwa kwayo neiyo AWG (American Wire Gauge) nhamba.ρCu ndiyo inodzivirira yepakati yayo.µCu ndiko kugona kwemagineti kwepakati payo.
Iyo chaiyo magnetic field mukati memunda coil (solenoid) haisi yunifomu pamwe nekureba kwetsvimbo.Uyu mutsauko unonyanya kuoneka nekuda kweiyo yakaderera magineti permeability yeHMM uye PM tsvimbo.Asi iyo yakareba symmetrical.Kugoverwa kwemagnetic field kunogadzirisa zvakananga kugoverwa kwemagineti kurasikirwa kweHMM tsvimbo.Nokudaro, kuratidza kugoverwa kwechokwadi kwekurasikirwa, tsvimbo yezvikamu zvitatu, inoratidzwa muMufananidzo 8, inotorwa kuyerwa.
Iko kurasikirwa kwemagineti kunogona kuwanikwa nekuyera iyo dynamic hysteresis loop.Zvichienderana nepuratifomu yekuyedza inoratidzwa muMufananidzo 11, matatu ane simba hysteresis loops akayerwa.Pasi pemamiriro ekuti tembiricha yeGMM tsvimbo yakagadzikana pasi pe50 ° C, iyo programmable AC magetsi ekupa (Chroma 61512) inotyaira coil yemumunda mune imwe mhando, sezvakaratidzwa mumufananidzo 8, kuwanda kweiyo magineti inogadzirwa ne bvunzo yazvino uye inokonzeresa magineti flux density inoverengerwa nekubatanidza voltage inokonzeresa mune induction coil yakabatana neGIM tsvimbo.Iyo mbishi data yakatorwa kubva kumemori logger (MR8875-30 pazuva) uye yakagadziriswa muMATLAB software kuti iwane yakayerwa dynamic hysteresis loops inoratidzwa muFig. 9.
Measured dynamic hysteresis loops: (a) chikamu 1/5: Bm = 0.044735 T, (b) chikamu 1/5: fm = 1000 Hz, (c) chikamu 2/4: Bm = 0.05955 T, (d) chikamu 2/ 4: fm = 1000 Hz, (e) chikamu 3: Bm = 0.07228 T, (f) chikamu 3: fm = 1000 Hz.
Zvinoenderana nemabhuku 37, iyo yakazara magineti kurasikirwa Pv payuniti vhoriyamu yeHMM tsvimbo inogona kuverengerwa uchishandisa inotevera formula:
apo ABH inzvimbo yekuyera paBH curve pamagnetic field frequency fm yakaenzana neexcitation current frequency f.
Zvichienderana neBertotti kurasikirwa kwekuparadzanisa nzira38, iyo magineti kurasikirwa payuniti misa Pm yeGMM tsvimbo inogona kuratidzwa sehuwandu hwekurasikirwa kwehysteresis Ph, iyo eddy yazvino kurasikirwa Pe uye kurasikirwa kusinganzwisisike Pa (13):
Kubva pamaonero einjiniya38, kurasikirwa kusinganzwisisike uye kurasikirwa kwazvino eddy kunogona kusanganiswa kuita izwi rimwe rinodaidzwa kuti eddy yazvino kurasikirwa.Saka, iyo formula yekuverenga kurasikirwa inogona kurerutswa seinotevera:
mu equation.(13)~(14) apo Bm ndiko kureba kwemagineti density yenzvimbo inonakidza yemagineti.kh uye kc ndiyo hysteresis kurasikirwa chinhu uye iyo yakazara eddy ikozvino kurasikirwa chinhu.