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Original scientific paper

LEAST INERTIA APPROACH TO LOW-SPEED MARINE DIESEL PROPULSION SHAFTING OPTIMUM DESIGN

Gojko Magazinović ; Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture

Fulltext: english, pdf (507 KB) pages 75-88 downloads: 446* cite
APA 6th Edition
Magazinović, G. (2014). LEAST INERTIA APPROACH TO LOW-SPEED MARINE DIESEL PROPULSION SHAFTING OPTIMUM DESIGN. Brodogradnja, 65 (3), 75-88. Retrieved from https://hrcak.srce.hr/127642
MLA 8th Edition
Magazinović, Gojko. "LEAST INERTIA APPROACH TO LOW-SPEED MARINE DIESEL PROPULSION SHAFTING OPTIMUM DESIGN." Brodogradnja, vol. 65, no. 3, 2014, pp. 75-88. https://hrcak.srce.hr/127642. Accessed 21 Jul. 2019.
Chicago 17th Edition
Magazinović, Gojko. "LEAST INERTIA APPROACH TO LOW-SPEED MARINE DIESEL PROPULSION SHAFTING OPTIMUM DESIGN." Brodogradnja 65, no. 3 (2014): 75-88. https://hrcak.srce.hr/127642
Harvard
Magazinović, G. (2014). 'LEAST INERTIA APPROACH TO LOW-SPEED MARINE DIESEL PROPULSION SHAFTING OPTIMUM DESIGN', Brodogradnja, 65(3), pp. 75-88. Available at: https://hrcak.srce.hr/127642 (Accessed 21 July 2019)
Vancouver
Magazinović G. LEAST INERTIA APPROACH TO LOW-SPEED MARINE DIESEL PROPULSION SHAFTING OPTIMUM DESIGN. Brodogradnja [Internet]. 2014 [cited 2019 July 21];65(3):75-88. Available from: https://hrcak.srce.hr/127642
IEEE
G. Magazinović, "LEAST INERTIA APPROACH TO LOW-SPEED MARINE DIESEL PROPULSION SHAFTING OPTIMUM DESIGN", Brodogradnja, vol.65, no. 3, pp. 75-88, 2014. [Online]. Available: https://hrcak.srce.hr/127642. [Accessed: 21 July 2019]

Abstracts
In this study, a novel approach to the low-speed marine diesel propulsion shafting design is proposed and examined. The proposed approach is based on the shafting least inertia principle, in which the design task is formulated and solved as a constrained nonlinear optimization problem. The core of the approach is a cost function, which is defined as a weighted sum of the shafting, turning wheel, and tuning wheel inertias, because it is a suitable proxy of the propulsion shafting material and production costs. The constraint set is composed of the three mandatory constraints, where the crankshaft, intermediate shaft, and propeller shaft torsional vibration stresses should be lower than the corresponding stress limits, as well as a few additional constraints that help ensure that the plant behavior complies with applicable regulatory and operational requirements. For optimization purposes, a Recursive Quadratic Programming method is utilized, while the shafting torsional vibration response is determined using a standard vibration analysis program with slight modifications. Numerical experiments have shown that fast convergence can be achieved. Compared to the classically obtained solution, the proposed approach provided more than 8 % reduction in cost function as well as significantly reduced design time.

Keywords
inertia; optimum design; propulsion shafting; torsional vibration

Hrčak ID: 127642

URI
https://hrcak.srce.hr/127642

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