doi:
UDK: 629.12

DETERMINATION OF THE CAUSES OF AN EMERGENCY DESCENT OF PROPELLERS DURING OPERATION

Матвеев Ю. И., Храмов М. Ю., Валиулин С. Н., Колыванов В. В.
Article language: английский

Annotation

The technical condition of the elements of the shaft pipeline largely determines the reliability and safety of the operation of ships. The most time-consuming operation during the installation of the shaft pipeline is the fitting of the conical surfaces of the propeller and propeller shaft, which must be carried out under the supervision of the Russian Classification Society in compliance with approved technologies at ship repair enterprises. However, every year there are cases of loss of propellers on water transport during the normal operation of ships. In this work, studies were conducted to determine the causes of loss of propellers of the ships “Oksky” and “Volgoneft”. The main reasons for the loss of propellers of the surveyed vessels are violations of the execution of the operations of the technological process of fitting (connecting) the propeller shaft and propeller during the repair period when installing parts of the shaft line. This statement is confirmed by the authors’ research carried out during the conduct of examinations. Keywords: ship propeller, errors of conical joints, connections, cracks.

Bibliography

1. GOST 5.40 97-85. Valy sudovyx valoprovodov. Obshchie texnicheskie usloviya [Shafts of ship shaft lines. General technical conditions]. (In Russ.).
2. GOST 24725-81. Valy sudovyx valoprovodov. Obshchie texnicheskie trebovaniya [Shafts of ship shaft pipelines. General technical requirements]. (In Russ.).
3. GOST 1050-88. Prokat sortovoj, kalibrovannyj, so special’noj otdelkoj poverxnosti iz uglerodistoj kachestvennoj stali. Obshchie texnicheskie usloviya [High-grade, calibrated rolled products with a special surface finish made of high-quality carbon structural steel. General technical conditions]. (In Russ.).
4. Schumacher M. Morskaya korroziya [Marine corrosion]. Spravochnik: perevod s angl. Moscow: Metallurgiya, 1983. P. 512. (In Russ.).
5. OST 5 P. 9782-2004. Vinty grebnye iz splavov na mednoj osnove. Ispravlenie defectov i povrezhdenij. Tipovoj texnologicheskij process [Propellers made of copperbased alloys. Correction of defects and damages. A typical technological process]. (In Russ.).
6. OST 5.9670-77. Soedinene konicheskix sudovyx valoprovodov. Sborka i razborka. Tipovye texnologicheskie processy [Connection of conical ship shaft lines. Assembly and disassembly. Typical technological processes]. (In Russ.).
7. GOST R 52 693-2006 (ISO 484-2:1981). Sudostroenie. Sudovye grebnye vinty. Dopuski na izgotovlenie. Chast’ 2. Grebnye vinty diametrom ot 08 do 2,5m vklyuchitel’no [Shipbuilding. Ship propellers. Manufacturing tolerances. Vol 2. Propellers with a diameter from 08 to 2.5 m inclusive]. (In Russ.).
8. GOST 24166-80 Sistema texnicheskogo obsluzhivaniya i remonta sudov. Remont sudov. Terminy i opredeleniya [Ship maintenance and repair system. Repair of sudov. Terms and definitions]. (In Russ.).
9. GOST 19439.3-74. Sudovye ӓkspluatacionnye dokumenty. Tipovaya nomenklatura dokumentov dlya morskix sudov i sudov vnutrennego plavaniya (s Izmeneniyami N 1, 2, 3) [Ship operating documents. Standard nomenclature of documents for sea vessels and inland navigation vessels (with Amendments N 1, 2, 3)]. (In Russ.).
10. OST 5. 4368-81. Valoprovody sudovyx dvizhitel’nyx ustanovok. Montazh. Texnicheskie trebovaniya, pravila priemki i metody kontrolya [Shaft lines of ship propulsion systems. Mounting. Technical requirements, acceptance rules and control methods]. (In Russ.).
11. Matveev Yu.I., Orexov V.A., Xramov M.Yu. Osobennosti napressovki oblicovok grebnyx valov [Features of pressing the lining of propeller shafts]. Vestnik VGAVT, 2019. no.60. P.232–237. (In Russ.).
12. Girin S.N., Matveev Yu.I. Analiz polomki grebnogo vala teploxoda «Ӓland» [Analysis of the breakdown of the propeller shaft of the ship “ELAND”]. Nauchnye problem vodnogo transporta. 2022. no. 71. P. 15–28. (In Russ.).
13. Rossijskoe Klassifikacionnoe Obshchestvo. Pravila osvidetel’stvovaniya sudov v processe ix ӓkspluatacii [Russian River Register. Rules of the Russian River Register. Rules for the inspection of vessels during their operation]. Moscow, 2019. (In Russ.).