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http://dx.doi.org/10.7837/kosomes.2018.24.2.253

A Study on the Improvement of Passenger Ship Rudder Stock and Tiller Locking Nut Loosening by Analyzing an Investigation Report and the NAS 3350 Test  

Kang, Dae-Kon (Korea Ship Safety Technology Authority)
Kim, Shin Hyo (Korea Ship Safety Technology Authority)
Park, Jai-Hak (Department of Safety Engineering, Chungbuk National University)
Publication Information
Journal of the Korean Society of Marine Environment & Safety / v.24, no.2, 2018 , pp. 253-259 More about this Journal
Abstract
In February 2014, the rudder upper stock and the nut of a passenger ship were released and an accident occurred. That accident occurred because the steering gear of passenger ships that was intended to move many passengers. The accidents due to steering gear was zero according to 2010-2016 statistics. There is no rules prevent loosening of the upper rudder nut in "Ship Safety Act" and "Structural standard of steel ship". Since the accident, the Korea register has been revised to the joining method in Part 5 Chapter 7 of the rules in the classification of steel ships. In the field survey of 12 passenger ships operating on Mokpo and surrounding islands, the welding method was applied in the cases as the fastening method. The fastening type was equipped with two C-type structures. It was structured to be difficult to access. The NAS 3350 test was conducted to investigate ways to prevent homologous accident considering the characteristic of passenger ships that need to lift or unload rides once a year.
Keywords
Car ferry passenger ship; Rudder stock & nut loosening; C type rudder; NAS 3350 test; Steering gear accident;
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  • Reference
1 MOF(2015a), Ministry of Oceans and Fisheries, Ship Safety Act / Enforcement Decree / Enforcement Rule.
2 MOF(2013), Ministry of Oceans and Fisheries, Standards for Steel Ships, pp. 119, p. 122.
3 Lee, W. H., Y. Huh, S. K. Cho, J. M. Koo and C. S. Seok(2007), A study on the development of loose prevention bolt and nut, Korea Society of Precision Engineering, Vol. 6, pp. 529-530.
4 Lloyd's(2017), Rules and Regulations for the Classification of Ships, Pt 3 Ch 13., pp. 456-457.
5 Mokpo Regional Maritime Safety Tribunal Decision(2016), No. 2016-059.
6 Ministry of Oceans and Fisheries Statistics Inquiry(2017), https://www.mof.go.kr/statPortal.
7 MOF(2015b), Ministry of Oceans and Fisheries, Criteria for ship Machinery, Article 8.
8 MOF(2017), Ministry of Oceans and Fisheries, Criteria for Fishing Vessel Machinery, Article 9.
9 MOF(2015c), Ministry of Oceans and Fisheries, Criteria for ship Electric & Equipment, Article 54.
10 MOF(2016), Ministry of Oceans and Fisheries, Criteria for Fishing Vessel Equipment, Article 257.
11 NK(2013), Rules for the Survey and Construction of Steel Ships, Part CSR-B Ch. 10. Sec. 1, p. 355.
12 Welsch, R.(2005), From Tinkering to Torquing: A Beginner's Guide to Tractors and Tools, MBI Publishing Company, p. 141.
13 ABS(2014), Rules for Building and Classing Steel Vessels, p. 150.
14 BV Rules Steel Ships(2017), Rudders Ch. 9 Sec. 1., p. 352.
15 DNV.GL Rules for Classification(2015), Rudders and steering Pt. 3 Ch. 14., p. 7.
16 Hard Lock Industry Co., Ltd.(2007, Vol.2), Experimental Evaluation of Screw Thread Loosening in Bolted Joint with Some Parts for Preventing The Loosening Under Transverse Repeated Loadings.
17 IACS UR S10(2015), Rudders, Sole Pieces and Rudder Horns, pp. 4-5.
18 KCDC(2010), Korea Consolidation Design Co., Ltd., Rudder & Rudder Stock Structure Approval Plans of G/T 400 Ton Class Car Ferry, pp. 66-67.
19 Kim, H. J. and C. W. Lee(2016), Korea Society of Precision Engineering, A Study on The Performance Evaluation of Self-locking Nuts, Vol. 10, p. 317.
20 KMST(2016), Korea Maritime Safety Tribunal Statistics Data, 2016 year accident list.
21 MOLIT(2015), Ministry of Land, Infrastructure and Transport, Criteria for Structure, Specfication and Ability for Tower Crane, Article 18.
22 KR(2017), Rules and Guidance for the classification of steel ships, Pt. 5 Ch. 7. 407, p. 165.
23 KS V 4021(2005), Rudders for Marine Use, p. 4, p. 6.
24 KS W ISO 7481(2015), Aerospace-Nut, Self-locking, with Maximum Operating Temperature Less Than or Equal to 425 Degrees -Test Methods. p. 4.