Video: Dab tsi yog lub kaum sab xis ntawm deflection?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
deflection lub kaum sab xis . [di'flek·sh?n'aŋ·g?l] (geodesy) The lub kaum sab xis nyob rau hauv ib qho chaw nyob rau hauv lub ntiaj teb nruab nrab ntawm cov kev taw qhia ntawm ib tug plumb kab (ntsug) thiab lub perpendicular (qhov qub) mus rau lub spheroid siv; qhov sib txawv no tsis tshua muaj tshaj 30 vib nas this ntawm arc.
Ib yam li ntawd ib tug yuav nug, ua li cas koj pom lub kaum sab xis ntawm deflection?
Coj mus rhaub thiab tuav hauv daim ntawv qhia thiab xaiv Ntxiv / Computedeflection cov ces kaum los ntawm shortcut menu. Xwb, tapand xaiv Cogo / Suav deflection angles . Cov Computedeflection cov ces kaum screen qhia cov ntsiab lus xaiv. Cov kab rov tav deflection lub kaum sab xis (4) yog qhia.
Kuj Paub, lub kaum sab xis ntawm qhov nkhaus yog dab tsi? Hauv geometry, tangential lub kaum sab xis ntawm ib qho nkhaus hauv Cartesian dav hlau, ntawm ib qho chaw tshwj xeeb, yog qhov lub kaum sab xis nruab nrab ntawm kab tangent mus rau nkhaus ntawm qhov taw tes thiab qhov x-axis. (Nco ntsoov tias qee tus kws sau ntawv txhais qhov lub kaum sab xis raws li qhov sib txawv ntawm qhov kev taw qhia ntawm lub nkhaus ntawm ib co fixedstarting point.
Ib yam li ntawd, dab tsi yog lub kaum sab xis deflection hauv curves?
Cov deflection lub kaum sab xis yog ntsuas los ntawm tangentat lub PC lossis PT mus rau lwm qhov xav tau ntawm qhov nkhaus . Tag nrho deflection (DC) ntawm tangent (T) thiab longchord (C) yog ∆/2. Cov deflection rau ko taw nkhaus (dc) pom los ntawm qhov sib npaug: dc = (Lc / L)(∆/2).
Kab rov tav nkhaus yog dab tsi?
Kab rov tav Curves yog ib qho ntawm ob qhov kev hloov pauv tseem ceeb hauv kev tsim qauv geometric rau txoj kev loj (nrog rau Vertical Curves ). A kab rov tav nkhaus muab atransition ntawm ob tangent strips ntawm txoj kev, cia avehicle mus sib tham ib tug tig ntawm ib tug gradual tus nqi es ib tug sharpcut.
Pom zoo:
Cov kab lus hloov sab hauv cov ces kaum piav qhia txoj haujlwm ntawm ob lub kaum sab xis li cas?
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