Download | - View accepted manuscript: Some unsteady propulsive characteristics of a podded propeller unit under maneuvering operation (PDF, 875 KiB)
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Author | Search for: Liu, Pengfei1; Search for: Islam, Mohammed; Search for: Veitch, Brian1 |
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Affiliation | - National Research Council of Canada. NRC Institute for Ocean Technology
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Format | Text, Article |
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Conference | 1st International Symposium on Marine Propulsors, June 22-24, 2009, Trondheim, Norway |
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Subject | Podded propulsor; Propulsor Simulator; Propeller unsteady loads; Panel Methods |
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Abstract | Propulsion dynamics of a podded propulsor unit in steering motion at fixed azimuth angles were investigated numerically. Unsteady forces, torques and bending moments were predicted for a model podded propulsor unit at various azimuth angles. Analysis was performed for averaged forces and their fluctuations as well. A timedomain unsteady multi-body panel method code, PROPELLA, was further developed for this work. Predictions were compared with a set of time averaged inhouse experimental data for a puller type podded propulsor configuration in the first quadrant operation. Unsteady fluctuations of forces were predicted numerically. Analysis was made for the bending moment on propeller blades, shaft and the propulsor unit stock shaft for azimuth angles from 0 to 45 degrees. It indicates that the magnitude and fluctuation of the forces are significant and they are essential for structural strength and design optimization. The predicted bending moment and global forces on the propulsor unit provide some useful data for ship maneuvering motion and simulation at off design conditions. |
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Publication date | 2009-01-01 |
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In | |
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Language | English |
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Peer reviewed | No |
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NPARC number | 18254622 |
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Export citation | Export as RIS |
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Report a correction | Report a correction (opens in a new tab) |
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Record identifier | 0f55bbe8-c220-4511-9a6e-ab435a50cfdf |
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Record created | 2011-07-13 |
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Record modified | 2020-04-16 |
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