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Citation:
 Drazen Polic,Sö,ren Ehlers,et al.Propeller Torque Load and Propeller Shaft Torque Response Correlation During Ice-propeller Interaction[J].Journal of Marine Science and Application,2017,(1):1-9.[doi:10.1007/s11804-017-1395-9]
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Propeller Torque Load and Propeller Shaft Torque Response Correlation During Ice-propeller Interaction

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Title:
Propeller Torque Load and Propeller Shaft Torque Response Correlation During Ice-propeller Interaction
Author(s):
Drazen Polic1 Sören Ehlers12 Vilmar Æsøy3
Affilations:
Author(s):
Drazen Polic1 Sören Ehlers12 Vilmar Æsøy3
1. Department of Marine Technology, Norwegian University of Science and Technology, Trondheim 7491, Norway;
2. Institute for Ship Structural Design and Analysis, Hamburg University of Technology, Hamburg 21073, Germany;
3. Department of Ocean Operations and Civil Engineering, Norwegian University of Science and Technology, Ålesund 6025, Norway
Keywords:
propeller torque loadpropeller shaft torque responseice-propeller interactionload-response correlation
分类号:
-
DOI:
10.1007/s11804-017-1395-9
Abstract:
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.

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Memo

Memo:
Received date:2016-05-26;Accepted date:2016-09-27。
Foundation item:This Research is Funded Through the Norwegian Research Council Project No. 194529.
Corresponding author:Dra?en Poli?,Email:drazen.polic@ntnu.no
Last Update: 2017-03-25