Pankhani ya maunyolo a nangula, ambiri aife timatsatira malamulo oyambira, koma Christopher Smith amakhulupirira kuti tiyenera kuganizira za mphepo, mafunde ndi zochitika.
Nangula wotanganidwa mwachiwonekere amafunikira kuti mugwiritse ntchito maunyolo ochepa kuposa njira zina zochepetsera mabwalo a wiggly, koma mumadziwa bwanji kuti simudzakoka?
Kuyimitsa ndiye gawo lalikulu la zida zankhondo zapamadzi - makamaka kwa iwo omwe sakufuna kuthawira nthawi iliyonse sitimayi ikayima.
Komabe, pa mbali yofunika imeneyi ya zosangalatsa zathu, zingakhale zovuta kupeza chidziwitso chodalirika pazochitika zambiri za ndondomekoyi.
Nthawi zambiri, malamulo osavuta amafunikira omwe angagwiritsidwe ntchito kuwonetsetsa kuti mwakhazikika bwino nthawi zambiri.
M'mawu ake, kuwerengera kwa malamulo amphamvu sikungaganizire mbali zonse za ma anchoring equations, koma ndizodabwitsa kuti anthu ambiri amaphonya zofunikira kwambiri chifukwa ndizovuta kuziyika mu fomula yosavuta.
Aliyense ali ndi malingaliro ake pa kuchuluka kwa maunyolo a nangula oti agwiritse ntchito.Njira yosavuta-ndipo mwina yodziwika kwambiri - bwanji kutaya maunyolo onse osungidwa mu locker?
Pochita izi, izi nthawi zambiri zimatanthauza kugwiritsa ntchito kutalika kotetezeka kwambiri - anangula aliwonse amakhala ndi miyala, osaya ndi zombo zina zomangika mukafika, kapena nthawi zambiri mukafika.
Ndiye, musanayang'ane anangula ena, mumadziwa bwanji zomwe zili zotetezeka?Mwachikhalidwe, mumagwiritsa ntchito oscilloscope (kuchuluka kwa madzi akuya) kuti mudziwe kutalika kwa tcheni cha nangula chomwe muyenera kugwiritsa ntchito.RYA imalimbikitsa mitundu ingapo ya 4:1, ena amati mufunika 7:1, koma ndizofala kwambiri pama anchorage odzaza ndi 3:1.
Komabe, lingaliro la kamphindi limakuuzani kuti m'malo omwe kusintha kwakukulu kungachitike pansi pazikhalidwe zosiyanasiyana, malamulo osasunthika a chala chachikulu sikokwanira kufotokoza mphamvu zazikulu zomwe zikugwira ntchito pa sitimayo, zomwe ndi mphepo ndi mafunde.
Nthawi zambiri, mphepo idzakhala vuto lalikulu, kotero muyenera kuganizira izi, ndikudziwa ndikukonzekera mphamvu ya mphepo yomwe ikuyembekezeka.Palinso mavuto;pali zolemba zochepa kapena zolemba pa anangula zomwe zingakuuzeni momwe mungaganizire mphamvu ya mphepo pokhazikitsa nangula.
Choncho, ndinabwera ndi kalozera wosavuta kwambiri kuti ndipereke lamulo la kuwerengera chala chachikulu (pamwambapa), chomwe chimaganiziranso mphepo ndi mafunde.
Ngati simukuwona chilichonse chokulirapo kuposa pamwamba pa "Force 4″ (16 knots), ndikumangira yacht 10m m'madzi osaya, zomwe zikutanthauza kuti kuya kuli pansi pa 8m, kuyenera kukhala 16m + 10m = 26m.Komabe, ngati mukuganiza kuti mphepo zamphamvu 7 (33 mfundo) zikubwera, yesani kukhazikitsa unyolo wa 33m + 10m = 43m.Lamuloli limakhudza nangula zambiri za m'mphepete mwa nyanja (kumene madzi ndi osaya kwambiri), koma kwa nangula zakuya (pafupifupi 10-15m), maunyolo ambiri amafunikira.
Yankho ndi losavuta: muyenera kugwiritsa ntchito maulendo 1.5 kuthamanga kwa mphepo kuti mupeze zotsatira zabwino.
Nangula zachikhalidwe za asodzi zimatha kupindika kukhala mawonekedwe athyathyathya kuti azinyamula mosavuta ndipo zimatha kukhazikika pamiyala ndi udzu, koma misomali yaying'ono imatha kukokera pansi kwina kulikonse ndikuigwiritsa ntchito ngati nangula wamkulu.
Ngati mphamvu yokoka ili yaikulu mokwanira, anangula a CQR, Delta ndi Kobra II akhoza kukoka, ndipo ngati mchenga uli mchenga wofewa kapena matope, ukhoza kukokera pansi pa nyanja.Chojambulacho chapangidwa kuti chiwonjezere mphamvu yake yogwira.
Blues yeniyeni yapangidwa kwa zaka zambiri, ndipo makope ambiri apangidwa, nthawi zambiri amapangidwa ndi zipangizo zotsika, zosalimba komanso zosalimba.Chogulitsa chenichenicho chikhoza kukhazikitsidwa ku zofewa mpaka pansi pa gawo lapakati.Akuti imatha kukhazikika pamwala, koma nsonga yake yayitali yakutsogolo imakhala yovuta kulowa udzu.
Danforth, Britany, FOB, Fortress ndi Guardian nangula ali ndi malo akuluakulu chifukwa cha kulemera kwawo, ndipo akhoza kukhazikika bwino pazitsulo zofewa ndi zapakati.Pamalo olimba, monga mchenga wowunjikana ndi ma shingles, amatha kutsetsereka popanda kulimba, ndipo amakonda kusakhazikika pomwe mafunde kapena mphepo ikusintha kolowera.
Gululi likuphatikizapo Bügel, Manson Supreme, Rocna, Sarca ndi Spade.Mapangidwe awo ndikuwapangitsa kukhala osavuta kukhazikitsa ndi kukonzanso pamene mafunde asintha, ndikukhala ndi kusunga kwakukulu.
Poyambira mawerengedwewa ndi kupindika kwa catenary m'madzi, komwe kumatulutsa mphamvu yochokera m'chombo kupita kunyanja.Kuchita masamu sizosangalatsa, koma pazikhalidwe zokhazikika, kutalika kwa kateriyali kumakhala ndi ubale wolumikizana ndi liwiro la mphepo, koma otsetsereka amangowonjezeka ndi muzu wa sikweya wa kuya kwa nangula.
Kwa anangula osaya (5-8m), otsetsereka ali pafupi ndi gawo: kutalika kwa catenary (m) = liwiro la mphepo (mfundo).Ngati nangula ndi wozama (15m), akuya 20m, otsetsereka adzakwera kufika 1.5 ndiyeno 2.
Square root factor yokhala ndi kuya ikuwonetsa bwino kuti lingaliro lamitundu ndi lolakwika.Mwachitsanzo, kugwiritsa ntchito mphepo yomwe ilipo kapena yoyembekezeka ya No. 5 kuti ikhazikike mu 4m ya madzi imafuna unyolo wa 32m, ndipo kutalika kwake ndi pafupifupi 8: 1.
Chiwerengero cha maunyolo omwe amagwiritsidwa ntchito pa bata ayenera kukhala osiyana ndi chiwerengero cha maunyolo ofunikira pamene mphepo ili yamphamvu
Monga Rod Heikell adanena (Summer Yacht Monthly 2018): "Iwalani kuchuluka kwa 3: 1 komwe nthawi zambiri kumakhala 3: 1: osachepera pitani 5: 1.Ngati muli ndi malo osambira, ndiye Zambiri.”
Mphamvu ya mphepo imadaliranso mawonekedwe a sitimayo (mphepo yolowera).Mutha kuyeza kuchuluka kwa maunyolo omwe amakwezedwa pa liwiro la mphepo (V) ndi kuya (D) pogwiritsa ntchito njira iyi: catenary = fV√D.
Kuwerengera kwanga kwa "nangula wosaya" kumatengera bwato langa (10.4 m Jeanneau Espace, tcheni cha 10 mm) ndi kuya kwa 6 m.Poganiza kuti kukula kwa unyolo kumawonjezeka molingana ndi kukula kwa bwato, mtengo udzakhala wofanana kwambiri ndi ma yacht ambiri opanga.
Kusambira kwa zaka zambiri kuti ndiwone nangula m'madzi otentha a Mediterranean kunanditsimikizira kuti kutalika kwa unyolo wabwino kwambiri ndi catenary kuphatikiza woyendetsa.
Kutalika kwa unyolo wokwiriridwa mumchenga kapena matope kumachepetsanso kwambiri kukangana kwa nangula.Chifukwa chake lingaliro langa labwino ndilakuti: unyolo wonse = catenary + captain.
Akuti kuti ndodo ya nangula ilowe pansi pa nyanja, unyolowo uyenera kupendekera m’mwamba, ndiko kuti, utali wake umakhala wocheperapo pang’ono poyerekezera ndi ukondewo.Komabe, ndichifukwa chake timagwiritsa ntchito mota mobweza pambuyo pozimitsa-kwezerani ngodya ya unyolo ndikukankhira nangula pansi.
Mphamvu yosunga nangula sikuganiziridwa apa.Izi ndizofunikira ndikukambidwa m'nkhani zina zambiri.
Mphamvu yachiwiri yomwe ikugwira ntchito pa sitimayo ndi kukana kwa mafunde.Chodabwitsa n'chakuti mungathe kudziyesa nokha.
Patsiku lomwe kuli mphepo, injini yamagetsi imayendetsa pang'onopang'ono ku mphepo, imachepetsa liwiro, ndipo imapeza liwiro la injini lomwe limalinganiza ndendende ndi mphepo.Ndiye, pa tsiku lodekha, tcherani khutu ku liwiro la sitima yopangidwa ndi liwiro lomwelo.
Pa bwato langa, mphepo yathunthu ya Force 4 imafuna 1200 rpm kuti igwirizane ndi mphepo-pabata bata 1200 rpm, liwiro la pansi ndi mfundo 4.2.Choncho, mafunde a 4.2 a mphamvu yamagetsi adzagwirizana ndi mfundo 16 za mphepo, ndipo unyolo wa 16m umafunika kuti ugwirizane, ndiko kuti, unyolo wokhala ndi mphamvu pafupifupi 4m pa mfundo.
Unyolo wa nangula nthawi zambiri umakhala ndi siteji ya 10m, kotero njira yothandiza ndikuzungulira zotsatira zowerengera mpaka 10m yapafupi.
Pazolemba zonse zokhudza nangula ndi zokambirana za kukula, zikuwoneka kuti kuganiziridwa pang'ono kumaperekedwa pa momwe angalore mphamvu ya mphepo.
Inde, pali zolemba zina za geek zokhudzana ndi kutalika kwa catenary, koma ndi zochepa zomwe zimayesa kuzigwiritsa ntchito pamayendedwe apanyanja.Ndikuyembekeza kuti mwina mutha kudzutsa njira yanu yoganizira momwe mungasankhire kutalika koyenera kwa unyolo wa nangula.
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Nthawi yotumiza: Jan-30-2021