Journal ArticleDOI
Numerical simulation of ship propulsion transients and full-scale validation
Ugo Campora,Massimo Figari +1 more
- Vol. 217, Iss: 1, pp 41-52
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TLDR
The developed computer simulation code may be considered as a useful tool to facilitate the correct matching of the prime mover to the propulsor in a wide range of operating conditions.Abstract:
The paper describes a mathematical model for the dynamics simulation of ship propulsion systems. The model, developed in a MATLAB-SIMULINK software environment, is structured in modular form; the v...read more
Citations
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Machine learning approaches for improving condition-based maintenance of naval propulsion plants
TL;DR: In this paper, a machine learning-based condition-based maintenance approach for ship propulsion systems is proposed to monitor the propulsion equipment by exploiting heterogeneous sensors, enabling diagnosis and prognosis of the propulsion system's components and their potential future failures.
Journal ArticleDOI
The Effect of Waves on Engine-Propeller Dynamics and Propulsion Performance of Ships
TL;DR: In this paper, the effect of waves on the propulsion system of a ship was investigated and a procedure for wake estimation in waves has been implemented to study the propulsion in different wave conditions, a clear drop in the propulsion performance was observed when engine propeller dynamics, wake variation and thrust and torque losses were taken into account.
Journal ArticleDOI
Computational investigation of a large containership propulsion engine operation at slow steaming conditions
TL;DR: In this article, the operation of a large containership main engine was investigated with emphasis at slow steaming conditions, and the extension of the compressor map at low rotational speed region was carried out based on a non-dimensional parameters method incorporating a novel way of calculating the compressor isentropic efficiency.
Journal ArticleDOI
A computational study on the performance and emission parameters mapping of a ship propulsion system
TL;DR: In this paper, the mapping of the performance and emission parameters of a merchant vessel propulsion system over the ship operating envelope was carried out by using a model capable of representing the ship propulsion system behaviour.
Journal ArticleDOI
Real-time simulation of a COGAG naval ship propulsion system:
TL;DR: The behavior of the propulsion system, in transient conditions as well as in steady state, is greatly studied in the design process of a ship as discussed by the authors, in both steady state and transient conditions.
References
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Journal ArticleDOI
Diesel Combustion Analysis Based on Two-Zone Model : Examination of Excess Air Ratio in Burned Zone
TL;DR: In this article, the burned zone excess air ratio λ d in the diffusion combustion process was analyzed using the two-zone model, and it was compared with the excess air proportion λ f estimated using a steady diffusion flame model of the fuel spray.
Journal ArticleDOI
Diesel Engine Cold Starting: P-C Based Comprehensive Heat Release Model: Part I—Single Cycle Analysis
TL;DR: In this paper, a portable PC-based heat release model for diesel engines with an emphasis on cold starting developed to be used on an IBM PC or compatible is presented, which features normalized variables, the inclusion of blowby and heat transfer models, smoothing using a combination of error detection methods and low pass FFT.