Zobrazeno 1 - 10
of 62
pro vyhledávání: '"Giulio Dubbioso"'
Publikováno v:
Journal of Marine Science and Engineering, Vol 9, Iss 5, p 482 (2021)
During maneuvers, propellers’ operation differs from their design due to strong modification of the wake field with respect to the straight-ahead motion. The consequent modification of the loads overstresses the mechanical components of the shaftli
Externí odkaz:
https://doaj.org/article/5368745abadd46ceb2adbc55c0f45c5a
Publikováno v:
Journal of Marine Science and Engineering, Vol 6, Iss 2, p 45 (2018)
The understanding of the performance of a propeller in realistic operative conditions is nowadays a key issue for improving design techniques, guaranteeing safety and continuity of operation at sea, and reducing maintenance costs. In this paper, a su
Externí odkaz:
https://doaj.org/article/72bcde4410f847cc98285876a510d297
Autor:
Massimo Falchi, Fabrizio Ortolani, Weichao Shi, Callum Stark, Giovanni Aloisio, Silvano Grizzi, Giulio Dubbioso
Leading edge tubercles (LET) is an attractive passive flow control solution that has been proved to enhance the hydrodynamic performance and efficiency of lifting surfaces adopted in many engineering areas. Nonetheless, their industrial application i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d75c6f3611e447824caf3d87ae13771d
https://strathprints.strath.ac.uk/80727/1/Falchi_etal_OE_2022_effect_of_leading_edge_tubercles_on_the_performance_of_marine_propellers.pdf
https://strathprints.strath.ac.uk/80727/1/Falchi_etal_OE_2022_effect_of_leading_edge_tubercles_on_the_performance_of_marine_propellers.pdf
Autor:
Fabrizio Ortolani, Giulio Dubbioso
Publikováno v:
Measurement. 202:111776
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7f7c0fd4bb9764ecabe9aedc0c0ae14d
https://doi.org/10.1016/j.measurement.2022.111776
https://doi.org/10.1016/j.measurement.2022.111776
Publikováno v:
Ocean engineering 178 (2019): 283–305. doi:10.1016/j.oceaneng.2019.02.069
info:cnr-pdr/source/autori:Gaggero, Stefano (2); Dubbioso, Giulio (1); Villa, Diego (2); Muscari, Roberto (1); Viviani, Michele (2)/titolo:Propeller modeling approaches for off-design operative conditions/doi:10.1016%2Fj.oceaneng.2019.02.069/rivista:Ocean engineering/anno:2019/pagina_da:283/pagina_a:305/intervallo_pagine:283–305/volume:178
info:cnr-pdr/source/autori:Gaggero, Stefano (2); Dubbioso, Giulio (1); Villa, Diego (2); Muscari, Roberto (1); Viviani, Michele (2)/titolo:Propeller modeling approaches for off-design operative conditions/doi:10.1016%2Fj.oceaneng.2019.02.069/rivista:Ocean engineering/anno:2019/pagina_da:283/pagina_a:305/intervallo_pagine:283–305/volume:178
In adverse situations, such as maneuvering and motion in waves, severe variations of the propeller inflow may be experienced, resulting in an increase of propeller thrust and torque and in the generation of in-plane loads. This may cause undesired hu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::255e885fd00c291494607ee350d9796f
https://doi.org/10.1016/j.oceaneng.2019.02.069
https://doi.org/10.1016/j.oceaneng.2019.02.069
Publikováno v:
Ocean engineering 196 (2020). doi:10.1016/j.oceaneng.2019.106789
info:cnr-pdr/source/autori:Ortolani, Fabrizio (a); Viviani, Michele (b); Tani, Giorgio (b); Dubbioso, Giulio (a)/titolo:Experimental investigation of single blade loads by captive model tests in pure oblique flow/doi:10.1016%2Fj.oceaneng.2019.106789/rivista:Ocean engineering/anno:2020/pagina_da:/pagina_a:/intervallo_pagine:/volume:196
info:cnr-pdr/source/autori:Ortolani, Fabrizio (a); Viviani, Michele (b); Tani, Giorgio (b); Dubbioso, Giulio (a)/titolo:Experimental investigation of single blade loads by captive model tests in pure oblique flow/doi:10.1016%2Fj.oceaneng.2019.106789/rivista:Ocean engineering/anno:2020/pagina_da:/pagina_a:/intervallo_pagine:/volume:196
Maneuvering motion is a critical off-design condition experienced by the propeller during realistic operations. Failures of the propulsive system, loss of efficiency and modification of the propeller side effects (propeller-hull induced pressure and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ed57abc513fac2d73934beac6614d744
Autor:
Alessandro Capone, Giulio Dubbioso, Alessandro Maiocchi, Francisco Pereira, Fabio Di Felice, Fabrizio Ortolani
Publikováno v:
Ocean engineering 197 (2020). doi:10.1016/j.oceaneng.2019.106881
info:cnr-pdr/source/autori:Ortolani, Fabrizio; Capone, Alessandro; Dubbioso, Giulio; Alves Pereira, Francisco; Maiocchi, Alessandro; Di Felice, Fabio/titolo:Propeller performance on a model ship in straight and steady drift motions from single blade loads and flow field measurements/doi:10.1016%2Fj.oceaneng.2019.106881/rivista:Ocean engineering/anno:2020/pagina_da:/pagina_a:/intervallo_pagine:/volume:197
info:cnr-pdr/source/autori:Ortolani, Fabrizio; Capone, Alessandro; Dubbioso, Giulio; Alves Pereira, Francisco; Maiocchi, Alessandro; Di Felice, Fabio/titolo:Propeller performance on a model ship in straight and steady drift motions from single blade loads and flow field measurements/doi:10.1016%2Fj.oceaneng.2019.106881/rivista:Ocean engineering/anno:2020/pagina_da:/pagina_a:/intervallo_pagine:/volume:197
In the field of marine hydrodynamics, propeller operations in off-design conditions represent a challenging topic that has been increasingly attracting interest among industry and research institutions. Over the ship operating life, off-design condit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0a5449042cd7b9074ed0427e914ee10c
http://www.cnr.it/prodotto/i/415982
http://www.cnr.it/prodotto/i/415982
Autor:
Fabrizio Ortolani, Giulio Dubbioso
Publikováno v:
Marine structures 71 (2020). doi:10.1016/j.marstruc.2020.102720
info:cnr-pdr/source/autori:Dubbioso, Giulio; Ortolani, Fabrizio/titolo:Analysis of fretting inception for marine propeller by single blade loads measurement in realistic operating conditions. Straight ahead and turning circle maneuver/doi:10.1016%2Fj.marstruc.2020.102720/rivista:Marine structures/anno:2020/pagina_da:/pagina_a:/intervallo_pagine:/volume:71
info:cnr-pdr/source/autori:Dubbioso, Giulio; Ortolani, Fabrizio/titolo:Analysis of fretting inception for marine propeller by single blade loads measurement in realistic operating conditions. Straight ahead and turning circle maneuver/doi:10.1016%2Fj.marstruc.2020.102720/rivista:Marine structures/anno:2020/pagina_da:/pagina_a:/intervallo_pagine:/volume:71
Controllable pitch propeller ( C P P ) is a versatile solution to fulfill high hydrodynamic efficiency and low environmental emissions for different operative scenario of a seagoing vessel because it allows the most suitable matching between the prim
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::48f125e50a2b155fbd6bb5cf4042380b
Publikováno v:
Applied ocean research 69 (2017): 205–219. doi:10.1016/j.apor.2017.11.004
info:cnr-pdr/source/autori:Muscari R.; Dubbioso G.; Ortolani F.; Di Mascio A./titolo:CFD analysis of the sensitivity of propeller bearing loads to stern appendages and propulsive configurations/doi:10.1016%2Fj.apor.2017.11.004/rivista:Applied ocean research/anno:2017/pagina_da:205/pagina_a:219/intervallo_pagine:205–219/volume:69
info:cnr-pdr/source/autori:Muscari R.; Dubbioso G.; Ortolani F.; Di Mascio A./titolo:CFD analysis of the sensitivity of propeller bearing loads to stern appendages and propulsive configurations/doi:10.1016%2Fj.apor.2017.11.004/rivista:Applied ocean research/anno:2017/pagina_da:205/pagina_a:219/intervallo_pagine:205–219/volume:69
The present investigation focuses on the effects of the stern appendages and the propulsion system on the hydro-loads generated by the propeller during off-design conditions, with particular emphasis on the in-plane components. Recent experimental in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3c240c4be730bc20ece3964dd94a7ddb
https://doi.org/10.1016/j.apor.2017.11.004
https://doi.org/10.1016/j.apor.2017.11.004