On application of standard methods for roll damping prediction to inland vessels
Abstract
Proper estimation of roll damping moment is of paramount importance for adequate assessment of dynamic stability of ships. However, experimental data on roll damping of inland vessels are scarce and unreliable. Thus the applicability of classic Ikeda's method and its simplified version on typical European inland vessels is investigated, with specific focus on eddy making component. It is found that the simplified Ikeda's method, in comparison to the classic method, may considerably underestimate the eddy making component of damping of full hull forms, or even return negative values, although the block coefficient is within the limits of method applicability. Hence, the paper explores possibilities of adjusting the simplified Ikeda's method in order to improve the observed shortcoming, as well as to extend its application to stability analysis of inland ships.
Keywords:
inland vessels / roll damping / Ikeda's method / simplified Ikeda's method / eddy dampingSource:
Proceedings of the 16th International Ship Stability Workshop (ISSW16), 2016Funding / projects:
- Development of new generation of safe, efficient, ecological (SE-ECO) ships (RS-MESTD-Technological Development (TD or TR)-35009)
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Institution/Community
Mašinski fakultetTY - CONF AU - Rudaković, Stefan AU - Bačkalov, Igor PY - 2016 UR - https://machinery.mas.bg.ac.rs/handle/123456789/6917 AB - Proper estimation of roll damping moment is of paramount importance for adequate assessment of dynamic stability of ships. However, experimental data on roll damping of inland vessels are scarce and unreliable. Thus the applicability of classic Ikeda's method and its simplified version on typical European inland vessels is investigated, with specific focus on eddy making component. It is found that the simplified Ikeda's method, in comparison to the classic method, may considerably underestimate the eddy making component of damping of full hull forms, or even return negative values, although the block coefficient is within the limits of method applicability. Hence, the paper explores possibilities of adjusting the simplified Ikeda's method in order to improve the observed shortcoming, as well as to extend its application to stability analysis of inland ships. C3 - Proceedings of the 16th International Ship Stability Workshop (ISSW16) T1 - On application of standard methods for roll damping prediction to inland vessels UR - https://hdl.handle.net/21.15107/rcub_machinery_6917 ER -
@conference{ author = "Rudaković, Stefan and Bačkalov, Igor", year = "2016", abstract = "Proper estimation of roll damping moment is of paramount importance for adequate assessment of dynamic stability of ships. However, experimental data on roll damping of inland vessels are scarce and unreliable. Thus the applicability of classic Ikeda's method and its simplified version on typical European inland vessels is investigated, with specific focus on eddy making component. It is found that the simplified Ikeda's method, in comparison to the classic method, may considerably underestimate the eddy making component of damping of full hull forms, or even return negative values, although the block coefficient is within the limits of method applicability. Hence, the paper explores possibilities of adjusting the simplified Ikeda's method in order to improve the observed shortcoming, as well as to extend its application to stability analysis of inland ships.", journal = "Proceedings of the 16th International Ship Stability Workshop (ISSW16)", title = "On application of standard methods for roll damping prediction to inland vessels", url = "https://hdl.handle.net/21.15107/rcub_machinery_6917" }
Rudaković, S.,& Bačkalov, I.. (2016). On application of standard methods for roll damping prediction to inland vessels. in Proceedings of the 16th International Ship Stability Workshop (ISSW16). https://hdl.handle.net/21.15107/rcub_machinery_6917
Rudaković S, Bačkalov I. On application of standard methods for roll damping prediction to inland vessels. in Proceedings of the 16th International Ship Stability Workshop (ISSW16). 2016;. https://hdl.handle.net/21.15107/rcub_machinery_6917 .
Rudaković, Stefan, Bačkalov, Igor, "On application of standard methods for roll damping prediction to inland vessels" in Proceedings of the 16th International Ship Stability Workshop (ISSW16) (2016), https://hdl.handle.net/21.15107/rcub_machinery_6917 .