Propeller Torque Load and Propeller Shaft Torque Response Correlation During Ice-propeller Interaction

Ships use propulsion machinery systems to create directional thrust. Sailing in ice-covered waters involves the breaking of ice pieces and their submergence as the ship hull advances. Sometimes, submerged ice pieces interact with the propeller and cause irregular fluctuations of the torque load. As a result, the propeller and engine dynamics become imbalanced, and energy propagates through the propulsion machinery system until equilibrium is reached. In such imbalanced situations, the measured propeller shaft torque response is not equal to the propeller torque. Therefore, in this work, the overall system response is simulated under the ice-related torque load using the Bond graph model. The energy difference between the propeller and propeller shaft is estimated and related to their corresponding mechanical energy. Additionally, the mechanical energy is distributed among modes. Based on the distribution, kinetic and potential energy are important for the correlation between propeller torque and propeller shaft response.

• Record URL:
  https://doi.org/10.1007/s11804-017-1395-9
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/16719433
• Supplemental Notes:
  • Copyright © 2017, Harbin Engineering University and Springer-Verlag Berlin Heidelberg.
• Authors:
  • Polić, Dražen
  • Ehlers, Sören
  • Æsøy, Vilmar
• Publication Date: 2017-3

Language

• English

Media Info

• Media Type: Web
• Features: References;
• Pagination: pp 1-9
• Serial:
  • Journal of Marine Science and Application
  • Volume: 16
  • Issue Number: 1
  • Publisher: Harbin Engineering University
  • ISSN: 1671-9433
  • EISSN: 1993-5048
  • Serial URL: http://link.springer.com/journal/11804

Subject/Index Terms

• TRT Terms: Hulls; Icebreaking; Icing; Kinetic energy; Propellers; Simulation; Thrust; Torque
• Subject Areas: Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 01630672
• Record Type: Publication
• Files: TRIS
• Created Date: Mar 21 2017 2:25PM