I n’a fɔ bi iziniw ni fɛnsɔrɔsiraw la, a dilanni hakilina min bɛ nɛgɛso pibilikiw kɔfɛ, o bɛ tɛmɛ « structures tubules » kan dɔrɔn. O nɔ na, a bɛ ɛntɛrinɛti fɛɛrɛ sigilen dɔ don a kɔnɔ min bɛ fɛnw dɔnniya, masinko sariyakolow, fɛn dilanni taabolo, ani baarakɛcogo wajibiyalenw fara ɲɔgɔn kan. K’a ta petoroli ni gazi pibilikiw ka degunw kunbɛnni wajibiyalenw na ka se bridge pile jusigilanw ka sɛgɛn wajibiyalenw ma ka se sow jɔcogo ma yɔrɔko la, nɛgɛ pibilikiw dilanni bɛ lamini tuma bɛɛ ni fɛn jɔnjɔn saba ye: "adaptibility functional", "structural reliability", ani "sɔgɔmadafɛko labɛnni", nafa caman sɔrɔli balansi barikama fɛ.
I. function-Oriented: "Basic paramètres" ɲɛfɔli ka da wajibiyalenw kan .
Fɛn fɔlɔ min bɛ kɛ ni nɛgɛ ye min bɛ wele ko spiral steel pipe design, o ye ka "a kɛcogo dɔn tigitigi." Aplikasi yɔrɔ danfaralenw bɛ ɲinini danfaralenw bila nɛgɛ pipew baaracogo kan. Tumu ni gazi pibilikiw ka kan ka tansiyɔnba muɲu (a ka ca a la ka tɛmɛ 6 MPa kan walima ka bɛn ɲɔgɔn ma) ani ka u sɔgɔli bali ka bɔ kɔnɔna na (i n’a fɔ sulfure stress corrosion from sour crude oil). O la, dilancogo fɔlɔ dɔw ye kogo janya ye (ka baara kɛ ni jila sɛgɛsɛgɛli ye walasa ka kogo janya hakɛ fitinin jateminɛ), kɔnɔna anti{4}}corrosion linings (i n’a fɔ 3PE dacogo walima epoxy mugu dacogo), ani sɛgɛn fanga. Faan wɛrɛ fɛ, nɛgɛ pipe minnu bɛ kɛ sow jɔli la (i n’a fɔ waati kuntaala surun bridge dɛmɛnanw walima yɔrɔlafɛnw) olu bɛ sinsin kosɛbɛ cross-sectional inertia (affecting bend and torsional resistance), surface treatment (anti{8}}Rust paint walima hot-dip galvanizing), ani compatibility with joints connections (suche conception).
Nin "demand-fɔlɔ" dilancogo fɛɛrɛ in bɛ "laɲiniw" baara kosɛbɛ ka kɛ paramɛtɛrɛw ye minnu bɛ se ka jate. Misali la, Long-yɔrɔjan tulu ni gazi tacogo porozɛw la, dilanbagaw bɛ baara kɛ ni jilafɛnw ka simulatigɛw ye walasa ka kɔnɔna tansiyɔn tilali jatebɔ pibiliki kɔnɔ. Ni u bɛ dugukoloko cogoyaw jateminɛ (i n’a fɔ jusigilan sigili yɔrɔw la minnu bɛ permafrost walima funteni bonya ni u jiginni kungo maraw kɔnɔ), u bɛ hoop stress range min bɛ se ka kɛ nɛgɛ pipe la, o latigɛ. A laban na, u bɛ janya kunbɛncogo wajibiyalen sɔrɔ sɔgɔsɔgɔninjɛw la (a ka c’a la, u ka dɔgɔ walima u bɛ bɛn 2mm ma walasa ka degun hakɛ dɔgɔya), pibiliki cɛmancɛ ni kogo janya hakɛ ɲuman (misali la, a ka c’a la, DN1000 pipe kogo janya bɛ kɛ 8{{
II. Intelligence structurel (Hakilila sigicogo): Spiral (Spiral) ka gundo masina .
Danfaraba min bɛ nɛgɛ pipe ni nɛgɛbere tilennen pipe cɛ, o bɛ a ka "spiral continuous welding" ɲɔgɔn tɛ min na-Steel plates bɛ siri ani ka sɔgɔ ka kɛɲɛ ni spiral line ye walasa ka pipe dilan. O wale in yɛrɛ bɛ structurel mechanics design hakilitigiw jira.
Ni an bɛ bɔ masinko siratigɛ la, welda min bɛ kɛ ni jiribolo ye, o bɛ boli cogo dɔ la (a ka c’a la, degere 50 -75 ) ka taa pipe axis la. O "oblique load" taamaʃyɛn bɛ Sɔ̀rɔ degunw tilatilali kelen na welda yɔrɔ la n'a bɛ Kɛ kɔnɔna degun na. Ni an y’a suma ni nɛgɛ pipe tilennen ye (yɔrɔ min na welda seam bɛ jɔ axial sira fɛ, nɔgɔya la ka kɛ degun hakɛ yɔrɔ ye), spiral steel pipe bɛ se ka 15%{{ O b’a to a bɛnnen don kɛrɛnkɛrɛnnenya la-jama hakɛ (DN1200 ani sanfɛ) ani pibiliki janw na minnu bɛ se ka tansiyɔnba ta. Ka fara o kan, spiral formation process bɛ nɛgɛdaga ka fibre continuité mara (a tɛ i n’a fɔ nɛgɛ pipe tilennen, min bɛ nɛgɛdaga tigɛcogo janya ani ka a fara ɲɔgɔn kan), ka se ka fɛn bɛɛ lajɛlen ka se ka fɛnw bɛɛ lajɛlen kunbɛn ani ka sɛgɛn waati ɲɛ.
Helix angle sugandili fana ka kan ka jateminɛ dilan waati la. Angle fitinin kojugu bɛna a to a ka gɛlɛn ka nɛgɛdaga dakunw bɛn ɲɔgɔn ma u dilanni waati la (a bɛ nɔ bila welda cogoya la), k’a sɔrɔ kɛrɛ min ka bon kojugu, o bɛna dɔ fara doni kan plati wulilan kan ani ka pipe ka gɛlɛya radiyali dɔgɔya. Enzeniyɛriw bɛ baara kɛ ni fɛn dantigɛlenw sɛgɛsɛgɛli (FEA) ye cogoya la walasa ka degunw tilatilali simulate helix angles différents la walasa ka laban ka angle range ɲuman dɔn min bɛ kɛ sababu ye ka baarakɛcogo ɲuman ni sigicogo fanga wajibiyalenw fila bɛɛ sabati.
iii. Manufacturing adaptation: Optimizing producibility in constraints .
Dilancogo tɛ se ka fara ɲɔgɔn kan ka bɔ fɛn dilanni na. Spiral steel pipe dilancogo hakilina ka kan ka jateminɛ kosɛbɛ taabolo kɛcogo la. Misali la, nɛgɛdaga fɛnɲɛnamafagalan sugandili ka kan ka fanga ni weldacogo balansi. Hali ni a ka bon-Pipeline steel (i n’a fɔ X80) bɛ se ka kogo janya dɔgɔya ani o cogo la fɛnw musakaw, a ka karɔbɔli hakɛ min bɛ bɔ ɲɔgɔn na, o bɛ funteni doncogo kɔlɔsili gɛlɛn de wajibiya welding waati la (walasa ka a tanga nɛnɛ kari). O la, "welding process window" min ka bon kosɛbɛ, o bɛ mara dilancogo waati la (misali la, ka dɔ fara groove blunt edge kan walima ka current ni voltage paramètres ladilan).
Ka fara o kan, bolifɛnw dantigɛli minnu bɛ kɛ ka ɲɛsin nɛgɛ pipe belebeleba ma-misali la, sirako ta fan fɛ, pipe cɛmancɛ hakɛ min ka ca ni 3M ye, o ka dɔgɔ walima a bɛ bɛn 3M ma, wa pipe minnu ka ca ni nin dan ye, olu ka kan ka dilan yɔrɔw la, ka sɔrɔ ka welda u kan-Yɔrɔ) fana bɛ se ka nɔ jugu bila dilancogo la. Ni poroze in bɛ pipe kelen,-Long pipe (i n’a fɔ kɔgɔjida la plateforme support structure) kelen de wajibiya, a dilabaga bɛ se ka "segmented spiral + flange connection" ɲɛnabɔcogo dɔ sugandi. Ni flansɛ dingɛ labɛncogo ɲuman ani sigilan sanfɛla lamini, o ɲɛnabɔcogo bɛ taa ni bolifɛnko wajibiyalenw ye ka sɔrɔ ka a sabati-Yɔrɔ sigicogo tiɲɛni.
Min ka bon hali ka tɛmɛ o kan, o ye "Green Manufacturing" hakilinaw donli ye : bi nɛgɛw dilanni nɛgɛw dilanni bɛ fɛnw bila jɔyɔrɔ fɔlɔ la (i n'a fɔ Q235B nɛgɛ karɔbɔlen) ani ka nɛgɛ baara dɔgɔya ni kogo janya bɛɛ lajɛlen ye (1mm jigincogo bɛɛ la kogo la, a girinya bɛ dɔgɔya ni 6%{{5}8%) ye. Welda fanga bonya kɔlɔsili tɛ nɔ bila degunw tilatilali dɔrɔn na, nka a bɛ dɔ bɔ fana sɔgɔli hakɛ la min ka kan ka kɛ corrosion anti-corrosion coating application kɔfɛ, o bɛ dɔ bɔ kabon bɔli la cogo la min tɛ siratigɛ la.
Kuncɛli: Injiniyɛri ka filozofi ka balansi fangama .
Spiral steel pipe dilanni ye fɛnba ye min bɛ se ka kɛ ka fura ɲuman sɔrɔ "baarakɛcogo wajibiyalenw" cɛ, "lakanani lakanani", ani "sɔgɔli musaka" cɛ. O b’a ɲini ɛntɛrinɛti injiniyɛriw fɛ u ka fɛnw cogoyaw kɔlɔsi tigitigi (misali la, ka Q345B nɛgɛ sɔrɔcogo dɔn, o ye 345 MPa ye, o bɛ bɛn degun ma min bɛ se ka kɛ kogo janya danfaralenw na), ka fara baarakɛcogo dantigɛli jugu kan (i n’a fɔ welding masin ka bobine janya hakɛ maksimali). O tɛmɛnen kɔ, "ɲɛnamaya dafalen" jateminɛ nafa ka bon kosɛbɛ (ka bɔ a dilanni na, a taacogo la, a sigili la, a baara la ani a ladonni na).
Ni nɛgɛdaga dɔ bɛ se ka wuli ka taa sanfɛ- tansiyɔn jiginni kungo kɔnɔ tulu ni gazi pibiliki kɔnɔ, a bɛ jikuruw nɔfɛta kɛlɛ kuruwa jusigilan kɔnɔ-kɔgɔjida la, walima ka yɔrɔ jɔcogo dɛmɛ stadisi dɔ ka dome kɔnɔ, o ye nin "jateminɛ hakilitigi" in kristalize ye ani "Engineering Discience" min bɛ se ka kɛ ni fɛnɲɛnamafagalan ye min bɛ se ka wuli a kɔfɛ Fɛɛrɛ minnu bɛ kɛ walasa ka nɛgɛ yɔrɔw kɛ bɔrɔ ye min bɛ se ka da u kan, o ye ka fɛnw siri ɲɔgɔn na ani ka u kɛ tiɲɛ ye.
