{"id":1858,"date":"2026-04-24T10:00:00","date_gmt":"2026-04-24T07:00:00","guid":{"rendered":"https:\/\/celik-halat.com\/d-d-orani-celik-halat-makara-cap-orani-omur\/"},"modified":"2026-04-24T10:00:00","modified_gmt":"2026-04-24T07:00:00","slug":"d-d-orani-celik-halat-makara-cap-orani-omur","status":"publish","type":"post","link":"https:\/\/celik-halat.com\/en\/d-d-orani-celik-halat-makara-cap-orani-omur\/","title":{"rendered":"D\/d Oran\u0131 Nedir? \u00c7elik Halat ve Makara \u00c7ap Oran\u0131n\u0131n \u00d6mre Etkisi (Hesap Tablosu)"},"content":{"rendered":"

Bir \u00e7elik halat\u0131n ger\u00e7ek \u00f6mr\u00fcn\u00fc belirleyen en g\u00fc\u00e7l\u00fc tek de\u011fi\u015fken; halat \u00e7ap\u0131 de\u011fil, makara \u00e7ap\u0131d\u0131r. Ayn\u0131 halat\u0131n, makara \u00e7ap\u0131 18d olan bir vin\u00e7te ortalama 12.000 \u00e7evrim dayan\u0131rken 25d olan bir vin\u00e7te 40.000 \u00e7evrim \u00fczerine \u00e7\u0131kmas\u0131 al\u0131\u015f\u0131lm\u0131\u015f bir durumdur. Bu \u00fc\u00e7 katl\u0131k fark, halat \u00fcreticisi, sat\u0131c\u0131 ya da bak\u0131m ekibinden de\u011fil; do\u011frudan D\/d oran\u0131ndan<\/strong> kaynaklan\u0131r. Bu rehberde D\/d oran\u0131n\u0131n ne oldu\u011funu, hangi standartlar\u0131n hangi minimum de\u011ferleri zorunlu k\u0131ld\u0131\u011f\u0131n\u0131, oran\u0131n halat yorulma \u00f6mr\u00fcne tablo baz\u0131nda etkisini ve sahada yap\u0131labilecek pratik m\u00fcdahaleleri ele al\u0131yoruz.<\/p>\n

D\/d oran\u0131 nedir?<\/h2>\n

D\/d oran\u0131, \u00e7elik halat\u0131n \u00fczerinden ge\u00e7ti\u011fi makara veya tambur \u00e7ap\u0131n\u0131n (D)<\/strong>, halat\u0131n nominal \u00e7ap\u0131na (d)<\/strong> b\u00f6l\u00fcnmesiyle elde edilen boyutsuz bir say\u0131d\u0131r. \u00d6rne\u011fin 16 mm \u00e7ap\u0131nda bir halat, 400 mm \u00e7ap\u0131nda bir makaradan ge\u00e7iyorsa D\/d = 400 \/ 16 = 25<\/strong>‘tir.<\/p>\n

Bu oran, halat\u0131n her b\u00fck\u00fcm ald\u0131\u011f\u0131nda demet ve tellerinde olu\u015fan e\u011filme gerilmesinin do\u011frudan g\u00f6stergesidir. Oran k\u00fc\u00e7\u00fcld\u00fck\u00e7e (yani makara darald\u0131k\u00e7a) halat i\u00e7indeki teller daha sert bir b\u00fck\u00fclme ya\u015far ve yorulma \u00e7atlaklar\u0131 \u00e7ok daha h\u0131zl\u0131 ba\u015flar. Oran b\u00fcy\u00fcd\u00fck\u00e7e b\u00fck\u00fclme yumu\u015far, demetler kayma yerine yuvarlanma hareketi yapar; halat ayn\u0131 y\u00fck\u00fc ta\u015f\u0131rken \u00e7ok daha uzun \u00f6m\u00fcrl\u00fc olur.<\/p>\n

D\/d oran\u0131 neden bu kadar belirleyici?<\/h2>\n

Halat bir makaran\u0131n etraf\u0131na sar\u0131ld\u0131\u011f\u0131nda, makaraya temas eden d\u0131\u015f telleri daha \u00e7ok uzar, i\u00e7 telleri ise daha \u00e7ok s\u0131k\u0131\u015f\u0131r. Bu farkl\u0131 uzama, telin y\u00fczeyinde d\u00f6ng\u00fcsel bir gerilme yarat\u0131r. M\u00fchendislik literat\u00fcr\u00fcnde Drucker-Tachau \u00e7al\u0131\u015fmas\u0131 olarak bilinen klasik analizde, halat yorulma \u00f6mr\u00fcn\u00fcn D\/d oran\u0131yla k\u00fcbik ili\u015fki<\/strong> i\u00e7inde oldu\u011fu g\u00f6sterilmi\u015ftir; yani D\/d iki kat\u0131na \u00e7\u0131kt\u0131\u011f\u0131nda \u00f6m\u00fcr yakla\u015f\u0131k sekiz kat\u0131na \u00e7\u0131kabilir.<\/p>\n

Bu y\u00fczden bir vin\u00e7te halat\u0131n erken kopmas\u0131 g\u00f6zlemlendi\u011finde ilk bak\u0131lmas\u0131 gereken \u015fey halat\u0131n kendisi de\u011fil, halat\u0131n ge\u00e7ti\u011fi makara ve tamburun \u00e7ap\u0131d\u0131r. S\u0131k\u00e7a g\u00f6rd\u00fc\u011f\u00fcm\u00fcz hata, sahada halat \u00e7ap\u0131 k\u00fc\u00e7\u00fclt\u00fclerek (\u00f6rne\u011fin 20 mm yerine 16 mm halat tak\u0131larak) D\/d oran\u0131 zorla y\u00fckseltilmek istenir; oysa bu sefer halat kopma y\u00fck\u00fc d\u00fc\u015ft\u00fc\u011f\u00fc i\u00e7in g\u00fcvenlik fakt\u00f6r\u00fc a\u00e7\u0131\u011fa d\u00fc\u015fer. Do\u011fru \u00e7\u00f6z\u00fcm, halat \u00e7ap\u0131n\u0131 korurken makara\/tamburu b\u00fcy\u00fctmek ya da hi\u00e7 olmazsa standartlar\u0131n \u00f6ng\u00f6rd\u00fc\u011f\u00fc minimumun alt\u0131na d\u00fc\u015fmemektir. Halat \u00f6mr\u00fcn\u00fcn di\u011fer bile\u015fenleri ve sahada kar\u015f\u0131la\u015f\u0131lan tipik kopma nedenleri i\u00e7in vin\u00e7 halatlar\u0131 neden kopar rehberini<\/a> de inceleyebilirsiniz.<\/p>\n

Standartlar D\/d i\u00e7in minimum de\u011fer \u015fart ko\u015far m\u0131?<\/h2>\n

Evet. Vin\u00e7, asans\u00f6r ve kald\u0131rma ekipman\u0131 standartlar\u0131n\u0131n hemen hepsi D\/d i\u00e7in bir alt s\u0131n\u0131r belirler. Bu s\u0131n\u0131r halat t\u00fcr\u00fcne ve uygulamaya g\u00f6re de\u011fi\u015fir:<\/p>\n\n\n\n\n\n\n\n\n\n\n\n
Standart \/ Uygulama<\/th>\nHalat T\u00fcr\u00fc<\/th>\nMinimum D\/d<\/th>\n<\/tr>\n<\/thead>\n
FEM 9.661 (vin\u00e7, M3 s\u0131n\u0131f\u0131)<\/td>\n6×19, 6×36 IWRC<\/td>\n18<\/td>\n<\/tr>\n
FEM 9.661 (vin\u00e7, M5 s\u0131n\u0131f\u0131)<\/td>\n6×36, 8×36 IWRC<\/td>\n22<\/td>\n<\/tr>\n
FEM 9.661 (vin\u00e7, M7-M8)<\/td>\nCompact \/ non-rotating<\/td>\n25 – 28<\/td>\n<\/tr>\n
EN 13135 (genel kald\u0131rma)<\/td>\n6×19 – 6×36 IWRC<\/td>\n20<\/td>\n<\/tr>\n
EN 81-50 (asans\u00f6r)<\/td>\n8×19 Seale, Warrington<\/td>\n40<\/td>\n<\/tr>\n
ISO 4308-1 (mobil vin\u00e7)<\/td>\nRotation-resistant 18×7, 35×7<\/td>\n25 – 35<\/td>\n<\/tr>\n
API 9A (off-shore)<\/td>\nDrilling line 6×19, 6×26<\/td>\n26 – 34<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Tabloda g\u00f6r\u00fcld\u00fc\u011f\u00fc gibi en dar D\/d aral\u0131\u011f\u0131 genel sanayi vin\u00e7lerine, en geni\u015f aral\u0131k ise asans\u00f6r ve insan ta\u015f\u0131yan ekipmanlara aittir. Bunun sebebi insan riski; ayn\u0131 halat \u00e7ok daha az \u00e7evrimde olsa bile yorulmaya \u00e7ok daha az u\u011frayacak \u015fekilde tasarlanmal\u0131d\u0131r.<\/p>\n

D\/d oran\u0131 ile halat \u00f6mr\u00fc aras\u0131ndaki ili\u015fki (yorulma tablosu)<\/h2>\n

Sahada karar verirken pratik olarak kullan\u0131labilecek bir \u00f6m\u00fcr \u00e7arpan tablosu a\u015fa\u011f\u0131dad\u0131r. Referans olarak D\/d = 25 kabul edilmi\u015f, di\u011fer oranlar\u0131n bu de\u011fere g\u00f6re relatif \u00f6m\u00fcr performans\u0131 verilmi\u015ftir:<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
D\/d Oran\u0131<\/th>\nG\u00f6receli Yorulma \u00d6mr\u00fc<\/th>\nTipik Uygulama<\/th>\n<\/tr>\n<\/thead>\n
14<\/td>\n~0,20 (5 kat k\u0131sa)<\/td>\nEski tip y\u00fck asans\u00f6r\u00fc, ev kald\u0131rma vinci<\/td>\n<\/tr>\n
16<\/td>\n~0,35<\/td>\nK\u00fc\u00e7\u00fck end\u00fcstriyel hoist<\/td>\n<\/tr>\n
18<\/td>\n~0,55<\/td>\nAt\u00f6lye vinci, FEM M3<\/td>\n<\/tr>\n
20<\/td>\n~0,75<\/td>\nGenel kald\u0131rma, EN 13135 alt s\u0131n\u0131r<\/td>\n<\/tr>\n
22<\/td>\n~0,90<\/td>\nK\u00f6pr\u00fc vin\u00e7, orta zorluk<\/td>\n<\/tr>\n
25<\/td>\n1,00 (referans)<\/td>\nKule vinci, mobil vin\u00e7 ana halat<\/td>\n<\/tr>\n
30<\/td>\n~1,40<\/td>\nLiman, konteyner vinci<\/td>\n<\/tr>\n
40<\/td>\n~2,30<\/td>\nAsans\u00f6r, insan ta\u015f\u0131ma<\/td>\n<\/tr>\n
60<\/td>\n~3,40<\/td>\nTeleferik, gondol<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Bu tablo, halat \u00fcreticisinin verdi\u011fi “daha uzun \u00f6m\u00fcrl\u00fc halat”<\/em> vaadinden \u00e7ok daha g\u00fc\u00e7l\u00fc bir parametreyi tek ba\u015f\u0131na anlat\u0131r. Halat tipini de\u011fi\u015ftirmeden makara \u00e7ap\u0131n\u0131 20’den 25’e \u00e7\u0131karmak \u00f6mr\u00fc tek ba\u015f\u0131na %30 \u00fczerinde art\u0131rabilir; ayn\u0131 halatla makara \u00e7ap\u0131n\u0131 18’den 25’e \u00e7\u0131karmak \u00f6mr\u00fc yakla\u015f\u0131k iki kat\u0131na \u00e7\u0131kar\u0131r.<\/p>\n

Halat t\u00fcr\u00fcne g\u00f6re minimum D\/d farkl\u0131l\u0131\u011f\u0131<\/h2>\n

T\u00fcm halatlar ayn\u0131 b\u00fck\u00fclme tolerans\u0131na sahip de\u011fildir. Genel kural olarak demet say\u0131s\u0131 artt\u0131k\u00e7a halat daha esnek olur ve daha k\u00fc\u00e7\u00fck D\/d oran\u0131nda \u00e7al\u0131\u015fabilir. Tellerin tipi ve \u00f6z\u00fcn yap\u0131s\u0131 da etkilidir:<\/p>\n