Investigation of asymmetrical shaft power increase during ship maneuvers by means of simulation techniques

Giulio Dubbioso, A. Coraddu, M. Viviani, M. Figari, S. Mauro, R. Depascale, A. Menna, A. Manfredini

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

4 Citations (Scopus)

Abstract

Marine propulsion plants can experience large power fluctuations during tight maneuvers, with increases of shaft torque up to and over 100% of the steady values in straight course and considerable asymmetry between internal and external shafts during turning circle. This phenomenon (studied in Viviani et al 2007a and 2007b can be of particular interest for twin screw ships propulsion systems with coupled shaftlines, in which asymmetrical loads can represent a challenge for the whole propulsion system (e.g. unique reduction gear, shaftlines, automation). A joint research has been set up in order to deeply investigate the phenomenon, by means of large scale model testing and related numerical simulations. In the present work, preliminary simulation results with different simplified automation systems and with an automation system more similar to the real one are reported, allowing to get a better insight into this complex problem.

LanguageEnglish
Title of host publication11th International Symposium on Practical Design of Ships and Other Floating Structures, PRADS 2010
Place of PublicationRio de Janeiro, Brazil
Pages172-181
Number of pages10
Volume1
Publication statusPublished - 1 Dec 2010
Event11th International Symposium on Practical Design of Ships and Other Floating Structures, PRADS 2010 - Rio de Janeiro, Brazil
Duration: 19 Sep 201024 Sep 2010

Conference

Conference11th International Symposium on Practical Design of Ships and Other Floating Structures, PRADS 2010
CountryBrazil
CityRio de Janeiro
Period19/09/1024/09/10

Fingerprint

Ship propulsion
Ships
Automation
Propulsion
Gears
Torque
Computer simulation
Testing

Keywords

  • automation
  • maneuverability
  • propulsion plant
  • simulation

Cite this

Dubbioso, G., Coraddu, A., Viviani, M., Figari, M., Mauro, S., Depascale, R., ... Manfredini, A. (2010). Investigation of asymmetrical shaft power increase during ship maneuvers by means of simulation techniques. In 11th International Symposium on Practical Design of Ships and Other Floating Structures, PRADS 2010 (Vol. 1, pp. 172-181). Rio de Janeiro, Brazil.
Dubbioso, Giulio ; Coraddu, A. ; Viviani, M. ; Figari, M. ; Mauro, S. ; Depascale, R. ; Menna, A. ; Manfredini, A. / Investigation of asymmetrical shaft power increase during ship maneuvers by means of simulation techniques. 11th International Symposium on Practical Design of Ships and Other Floating Structures, PRADS 2010. Vol. 1 Rio de Janeiro, Brazil, 2010. pp. 172-181
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Dubbioso, G, Coraddu, A, Viviani, M, Figari, M, Mauro, S, Depascale, R, Menna, A & Manfredini, A 2010, Investigation of asymmetrical shaft power increase during ship maneuvers by means of simulation techniques. in 11th International Symposium on Practical Design of Ships and Other Floating Structures, PRADS 2010. vol. 1, Rio de Janeiro, Brazil, pp. 172-181, 11th International Symposium on Practical Design of Ships and Other Floating Structures, PRADS 2010, Rio de Janeiro, Brazil, 19/09/10.

Investigation of asymmetrical shaft power increase during ship maneuvers by means of simulation techniques. / Dubbioso, Giulio; Coraddu, A.; Viviani, M.; Figari, M.; Mauro, S.; Depascale, R.; Menna, A.; Manfredini, A.

11th International Symposium on Practical Design of Ships and Other Floating Structures, PRADS 2010. Vol. 1 Rio de Janeiro, Brazil, 2010. p. 172-181.

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

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T1 - Investigation of asymmetrical shaft power increase during ship maneuvers by means of simulation techniques

AU - Dubbioso, Giulio

AU - Coraddu, A.

AU - Viviani, M.

AU - Figari, M.

AU - Mauro, S.

AU - Depascale, R.

AU - Menna, A.

AU - Manfredini, A.

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N2 - Marine propulsion plants can experience large power fluctuations during tight maneuvers, with increases of shaft torque up to and over 100% of the steady values in straight course and considerable asymmetry between internal and external shafts during turning circle. This phenomenon (studied in Viviani et al 2007a and 2007b can be of particular interest for twin screw ships propulsion systems with coupled shaftlines, in which asymmetrical loads can represent a challenge for the whole propulsion system (e.g. unique reduction gear, shaftlines, automation). A joint research has been set up in order to deeply investigate the phenomenon, by means of large scale model testing and related numerical simulations. In the present work, preliminary simulation results with different simplified automation systems and with an automation system more similar to the real one are reported, allowing to get a better insight into this complex problem.

AB - Marine propulsion plants can experience large power fluctuations during tight maneuvers, with increases of shaft torque up to and over 100% of the steady values in straight course and considerable asymmetry between internal and external shafts during turning circle. This phenomenon (studied in Viviani et al 2007a and 2007b can be of particular interest for twin screw ships propulsion systems with coupled shaftlines, in which asymmetrical loads can represent a challenge for the whole propulsion system (e.g. unique reduction gear, shaftlines, automation). A joint research has been set up in order to deeply investigate the phenomenon, by means of large scale model testing and related numerical simulations. In the present work, preliminary simulation results with different simplified automation systems and with an automation system more similar to the real one are reported, allowing to get a better insight into this complex problem.

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Dubbioso G, Coraddu A, Viviani M, Figari M, Mauro S, Depascale R et al. Investigation of asymmetrical shaft power increase during ship maneuvers by means of simulation techniques. In 11th International Symposium on Practical Design of Ships and Other Floating Structures, PRADS 2010. Vol. 1. Rio de Janeiro, Brazil. 2010. p. 172-181