Development of computational and experimental approaches to refinement of local ice load

Authors: Ye.M. Appolonov, V.A. Korshunov, D.A. Ponomarev, A.A. Rodionov

Abstract

This paper is dedicated to refinement of the procedures for the appointment of local ice loads based on calculation and experimental methods. The methodology for determining the local ice loads on the ice-resistant structures, based on the calculated generalization of results of specific model tests carried out and more precise pressure dependency tracing, is introduced. An algorithm for determining the parameters of the local ice loads with the use of high-precision mathematical models of the finite element method has been developed. Calculation approbation of the ice pressure distribution calculated recovery procedure on the nature of the measuring window of a physical model is conducted. This can significantly improve the distribution accuracy of the ice pressure registered field. 
Keywords: ice load, finite element method, sensors, ice-resistance structures.


References

1. Mezhdunarodnyj standart ISO/FDIS 19906 «Neftjanaja i gazovaja promyshlennost' - Konstrukcii sooruzhenij arkticheskogo shel'fa», 2010 g.
2. Nacional'nyj standart Rossijskoj Federacii GOST R ISO 19906 «Neftjanaja i gazovaja promyshlennost'. Sooruzhenija arkticheskogo shel'fa», M: Standartinform, 2011 g.
3. ABS Rules for Building and Classing Mobile Offshore Drilling Units, Appendix 1: Strengthening of Mobile Offshore Drilling Units for Navigation in Ice.
4. Pravila klassifikacii, postrojki i oborudovanija PBU/MSP. Rossijskij Morskoj Registr Sudohodstva, 2014.
5. Finnish-Swedish Ice Class Rules, 2012.
6. Germanischer Lloyd. Rules and Guidelines. IV Industrial Services. 6 Offshore Installations. & Guidelines for the Construction of Fixed Offshore Installations in Ice Infested Waters. 2005. 
7. Palmer A.C., Dempsey J.P., Masterson D.M.  A revised ice pressure-area curve and a fracture mechanics explanation. Cold Regions Science and Technology 56 May (2009) 73–76
8. ANSYS release 15.0 documentation. ANSYS Inc., 2014.


About authors

Appolonov Yevgeniy - DSc, professor, State Marine Technical University of St. Petersburg

Korshunov Vladimir - PhD, State Marine Technical University of St. Petersburg

Ponomarev Dmitriy - State Marine Technical University of St. Petersburg

Rodionov Aleksander - DSc, State Marine Technical University of St. Petersburg


Issue: 42/43 (2016)




For citation: Ye.M. Appolonov, V.A. Korshunov, D.A. Ponomarev, A.A. Rodionov. Development of computational and experimental approaches to refinement of local ice load. Research Bulletin by Russian Maritime register of Shipping. 2016, No. 42/43, pp. 40-46.

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UDC:  656.61.086
Pages:  40-46