Umthungo ovunguzayo ongaphansi kwamanzi we-arc welded steel pipe ibholwa ngokuzungeza futhi iqala ukungena ekubunjweni okuthambile.Ngaphansi kwesenzo se-tri-cone, i-drill iqala ukukhiqiza ukuguqulwa kwe-shear elastic ye-stratum bese isuswa ngaphansi kwengcindezi ye-tri-cone.Endaweni eyenziwe, inhlabathi ethambile ingubumba obufanayo, kungakhathaliseki ukuthi i-stratum kanye nokuqhekeka kwenhlabathi.Ukubhoboza okuqondile okuqondile kwenziwa ngokwakheka okungazelelwe, futhi ukwakheka kuxhumene okungahleliwe futhi okuguquguqukayo ne-roller cone bit.Ukungqubuzana kwenzeka lapho ikhoni ithintana nomhlabathi.Amandla omthelela abangela ukuthi ipayipi lensimbi elijikelwe yi-arc elijikelwe emanzini elizungezayo lidlidlizele.Uma ibhithi yekhoni engu-tricone isuka ekwakhekeni okuthambile iye ekubunjweni okuqinile, nakanjani izokhiqiza ukudlidliza okukhulu okuseceleni kanye nokukhuphuka naphansi kokudlidliza.

Uma isivinini sokumba singu-0.008m/s futhi ijubane lokuzungeza kancane lingu-2 radians/s, ijika lamandla elingamanga ngesikhathi sokuqhubekela phambili kwebhithi ye-roller cone ikakhulukazi ihlanganisa i-viscosity nokunwebeka.Kodwa-ke, njengoba igama le-viscous livame ukubusa, ukuguqulwa kwamandla amaningi abe amandla mbumbulu akubuyiseleki emuva.Amandla okuguqula ipayipi lensimbi elivunguzayo le-arc elishiselwe emanzini angamandla amakhulu asetshenziswa ukulawula ukuwohloka kwengilazi yehora.Uma i-pseudo strain energy iphezulu kakhulu, kusho ukuthi amandla okucindezela alawula ukuguqulwa kwe-hourglass mkhulu kakhulu, futhi i-mesh kufanele icwengwe noma ilungiswe.Ukunciphisa amandla omgunyathi ngokweqile.Ushintsho olungazelelwe lwamandla e-pseudo strain kule modeli ikakhulukazi kwenzeka lapho i-drill bit ingena ungqimba lwenhlabathi ethambile futhi i-cone bit idlula ku-interface yokwakheka koshintsho kungazelelwe.Uma kukhulu ukuqina kokwakheka, amandla obunzima mbumbulu we-drill bit ekubunjweni okukhulu kakhulu.Lingisa inqubo yokubhoboza ipayipi elishiselwe elisontekile ekubunjweni okungazelelwe futhi ubikezele ushintsho lomzila wokubhoboza we-drill bit.

(1) Ukushintsha okungazelelwe kwamandla mbumbulu kwenzeka ngokuyinhloko lapho i-drill bit ingena kungqimba lomhlabathi othambile futhi ibhithi yekhoni iwela ukusebenzelana kokwakheka koshintsho kungazelelwe.Uma buphakama ubulukhuni bokwakheka, aba makhulu amandla obunzima bomthungo ovunguzayo ongaphansi kwe-arc oshiselwe ipayipi lensimbi lapho lingena enqubweni yokubunjwa.

(2) Lapho ubhoboza ukwakheka kungazelelwe, ipayipi lensimbi elivunguzayo elingaphansi kwe-arc elishiselwe linyakaza ngobude futhi ibhithi lokubhoboza liyandindizela.Ubunzima bokubunjwa bukhulu, ubukhulu be-amplitude ye-drill bit.

(3) Ngaphansi kwesimo sokucwiliswa kwe-stratum ethile, ijubane lokubhola le-drill bit likhulu, ukuchezuka kwe-longitudinal kwe-trajectory yokumba, kanye nesivinini esikhulu sokubhoboza, kuba kuncane ukuchezuka kwe-longitudinal ye-trajectory yokumba.Uma ijubane lokujikeleza kancane lingaphansi kuka-2.2rad/s, umthelela wesivinini sokuzungeza ekuphambukeni kwe-longitudinal ye-drilling trajectory iyancishiswa.

(4) Ngejubane elithile elincane lokuzungezisa, lapho i-engeli ye-dip yokwakheka kwendawo ingu-0° futhi 90°, ayinawo umthelela kumzila wokumba;lapho i-angle yokucwilisa yendawo ikhula kancane kancane, ukuphambuka kwe-longitudinal kwe-drilling trajectory kuyanda;lapho i-engeli yokucwilisa yendawo idlula ama-45°, Ithonya ku-trajectory yokuphambuka kwe-longitudinal yokumba liyancipha.Imiphumela yocwaningo kulesi sahluko ibaluleke kakhulu ekuthuthukiseni ukunemba kokubikezela kwe-tri-cone drill bit ekubunjweni okuwumqansa futhi ibeka isisekelo sethiyori sokulungiswa komthungo ovunguzayo ongaphansi kwe-arc oshiselwe ipayipi lokumba ipayipi lensimbi ngokusebenzisa imbobo yokuhlola evundlile.