OVERVIEW

During the Ship Propulsion Plants module the operating principles of marine propulsion for different types of ships will be presented, with particular attention to the aspects related to dynamics and control. Both the theoretical / methodological and practical aspects will be illustrated, with particular emphasis on advanced design and numerical / implementation aspects.

AIMS AND CONTENT

LEARNING OUTCOMES

The module deals with the study of marine propulsion systems and it is performed through a detailed analysis of the several system components, taking into account the mutual interactions. The module also deals with advanced design methodologies to catch the technological trends of the sector.

AIMS AND LEARNING OUTCOMES

The course aims to provide the students with advanced tools for the state of art  design of complex propulsion systems, both from a technical and regulatory point of view. At the end of the module, the students will be able to independently evaluate different design solutions, propose new ones with the awareness of the physical principles that drive the dynamics of marine propulsion.

PREREQUISITES

Knowledge of static methods for the design of marine propulsion. Basic knowledge of the principles of naval architecture. Principles of programming.

TEACHING METHODS

Classroom lectures and exercises, Industry expert workshops and educational visits.

SYLLABUS/CONTENT

1. Combined Propulsion Plants. Gas turbines. Electric motors. 4T Diesel engines. Nomenclature. Layout. Applications. Rules and impact on the ship design.
2. Controllable pitch propellers. Introduction. Open water diagrams. Four quadrants propeller model. Engine- CPP Matching. Blade moving mechanism and hydraulic system. Combinator tables.
3. Off design conditions. Freewheel propeller. Locked propeller. Flexible operating profiles. Navigation in rough sea.
4. Waterjet. Working principle. Fundamental waterjet equations. Performance diagrams. Matching with prime movers.
5. Energy efficiency. Regulations. Energy efficiency indexes. Design and operative solutions.
6. Surge motion equation. Fundamental equation. Examples.
7. Shaftline equation. Fundamental equation. Examples.
8. Simulation techniques. Classification. Marine engineering applications. Hardware in the loop.  
9. Ship propulsion modelling. Numerical modelling of propellers and engines. Holistic ship modelling. Analysis of the dynamic response in open loop.
10. PID controller. Theory. Coefficients assessment. Examples.
11. Propulsion simulation. Propulsion control system architecture. Shatfline revolution control. Ship speed control.
12. Assignments. Numerical exercises regarding the module topics.

The program may be modified during the course.

RECOMMENDED READING/BIBLIOGRAPHY

1. Course notes taken in class and material provided by the teacher
2. Marine Engineering - SNAME (ME)
3. RINA Rules for the classification of ships, RINA
4. J.Klein Woud, D. Stapersma, Design of Propulsion and Electric Power Generation Systems, IMarEST, London, 2002
5. Martelli M. (2015): “Marine Propulsion Simulation: Methods and Results”, Publisher: De Gruyter Open, Collection: engineering, pp. 1-104 
6. Fossen, Thor I. Handbook of marine craft hydrodynamics and motion control. John Wiley & Sons, 2011.

TEACHERS AND EXAM BOARD

Exam Board

MASSIMO FIGARI (President)

MICHELE MARTELLI (President)

RAPHAEL ZACCONE (President)

SILVIA DONNARUMMA

BRUNO SPANGHERO

LESSONS

Class schedule

The timetable for this course is available here: Portale EasyAcademy

EXAMS

EXAM DESCRIPTION

The exam consists in an oral dissertation, during which open questions will be asked to the student. Online registration for exams is required, the exam calendar is available on www.unige.it. There are no extraordinary exam appeals.

ASSESSMENT METHODS

The oral exam will verify the effective understanding of the discussed topics. The quality of the exposure, the correct use of the specialized vocabulary and the capacity of critical reasoning will be evaluated.

Exam schedule