Lub kauv seam submerged arc welded steel yeeb nkab yog drilled nyob rau hauv kev sib hloov thiab pib nkag mus rau hauv lub mos tsim.Nyob rau hauv qhov kev txiav txim ntawm tri-cone, lub laum ua ntej tsim elastic shear deformation ntawm lub stratum thiab ces muab tshem tawm nyob rau hauv lub siab ntawm lub tri-cone.Nyob rau hauv ib puag ncig simulated, cov av mos yog homogeneous av nplaum, tsis hais cov stratum thiab cov kab nrib pleb hauv cov av.Kab rov tav directional drilling yog nqa tawm nyob rau hauv ib tug abrupt tsim, thiab cov tsim yog nyob rau hauv random thiab dynamic kev sib cuag nrog cov menyuam lub khob hliav qab me ntsis.Kev sib txhuam tshwm sim thaum lub khob hliav qab sib cuag nrog hauv av.Qhov cuam tshuam quab yuam ua rau cov kauv seam submerged arc welded steel yeeb nkab kom vibrate.Thaum lub tri-cone me ntsis txav ntawm qhov muag muag mus rau qhov nyuaj tsim, nws yuav inevitably tsim loj lateral kev co thiab nce thiab nqis ntawm kev co.

Thaum lub drilling ceev yog 0.008m / s thiab lub me ntsis kev sib hloov ceev yog 2 radians / s, lub pseudo-strain zog nkhaus thaum lub sij hawm nce qib ntawm cov menyuam lub khob hliav qab me ntsis feem ntau suav nrog viscosity thiab elasticity.Txawm li cas los xij, txij li lub sij hawm viscous feem ntau dominates, kev hloov pauv ntawm feem ntau ntawm lub zog rau hauv pseudo strain zog yog irreversible.Lub zog deformation ntawm kauv seam submerged arc welded steel yeeb nkab yog lub zog tseem ceeb siv los tswj lub deformation ntawm lub moos.Yog tias lub zog pseudo lub zog siab dhau lawm, nws txhais tau hais tias lub zog strain tswj lub deformation ntawm lub moos iav loj dhau, thiab cov mesh yuav tsum tau ua kom zoo los yog hloov kho.Txhawm rau txo qis pseudo strain zog ntau dhau.Kev hloov tam sim ntawd ntawm pseudo strain zog hauv cov qauv no feem ntau tshwm sim thaum lub laum me ntsis nkag mus rau hauv cov av mos txheej thiab lub khob hliav qab me ntsis dhau los ntawm qhov sib cuam tshuam ntawm kev hloov tam sim ntawd.Qhov ntau dua qhov hardness ntawm kev tsim, ntau dua qhov pseudo strain zog ntawm lub laum me ntsis rau hauv kev tsim.Simulate cov txheej txheem drilling ntawm kauv welded yeeb nkab nyob rau hauv lub abrupt tsim thiab kwv yees qhov kev hloov ntawm lub laum ntsis qhov drilling trajectory.