Ntawm ntau yam kev ntsuas qhov tseeb ntawm cov kab ntawv qhia, qhov tseeb geometric thiab qhov tseeb ntawm cov lus qhia yog qhov tseem ceeb dua.
Qhov tseeb geometric ntawm txoj kev tsheb ciav hlau muaj xws li qhov ncaj ntawm txoj kev tsheb ciav hlau nruab nrab ntawm lub dav hlau ntsug thiab lub dav hlau kab rov tav, qhov sib npaug ntawm cov lus qhia kev tsheb ciav hlau thiab qhov perpendicularity ntawm cov lus qhia; cov kev taw qhia qhov tseeb ntawm cov kev taw qhia rail hais txog kev txav trajectory ntawm cov khoom txav thiab cov kev taw qhia. kev sib txawv. Nws feem ntau yog nyob ntawm qhov tseeb geometric ntawm phau ntawv qhia kev tsheb ciav hlau nws tus kheej thiab cov lus qhia rail haum clearance, qhov twg cov kev taw qhia rail haum clearance feem ntau yog nyob ntawm cov yam ntxwv ntawm cov kev taw qhia rail, nto roughness, rigidity ntawm phau ntawv qhia rail thiab lub zog ntawm thermal. deformation.
Cov yam tseem ceeb uas cuam tshuam rau qhov tseeb ntawm cov lus qhia rail yog raws li hauv qab no:
1. Qhov ncaj ntawm txoj kev tsheb ciav hlau: ncaj qha cuam tshuam rau kev sib luag ntawm cov lus qhia kev tsheb ciav hlau thiab qhov perpendicularity ntawm cov lus qhia
2. Qhia rail rigidity: phau ntawv qhia rail yuav tsim kev sib cuag deformation, lub zos deformation thiab tus kheej - deformation nyob rau hauv quab yuam. Kev sib cuag deformation yog tshwm sim los ntawm qhov microscopic unevenness ntawm cov lus qhia rail dav hlau; lub zos deformation feem ntau tshwm sim nyob rau hauv qhov chaw uas muaj kev ntxhov siab yog concentrated; Lub deformation ntawm cov kev taw qhia rail nws tus kheej yog hais txog tag nrho cov deformation ntawm cov kev taw qhia rail nyob rau hauv qhov kev txiav txim ntawm sab nraud load, thiab muaj feem xyuam rau cov khoom thiab layout ntawm cov kev taw qhia rail.
3. Qhov saum npoo roughness ntawm phau ntawv qhia kev tsheb ciav hlau: feem ntau yog nyob ntawm cov khoom siv, hardness thiab kev sib tsoo txheej txheem ntawm txoj kev tsheb ciav hlau.
4. Cov qauv ntawm cov kev taw qhia kev tsheb nqaj hlau: nws ncaj qha cuam tshuam rau qhov chaw qhov tseeb thiab rov ua qhov tseeb ntawm lub tshuab cuab yeej.
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