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 course will cover the following topics: Engine-propeller matching for design and off design conditions, Marine waterjets performance maps, Selection criteria of the waterjet propulsion unit, Automation outline for propulsion systems with CP propellers and waterjets, Charter yachts rules for bilge system, Sizing of the main firefighting

AIMS AND LEARNING OUTCOMES

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

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. Surge motion equation. Fundamental equation. Examples.
6. Shaftline equation. Fundamental equation. Examples.
7. Simulation techniques. Classification. Marine engineering applications. Hardware in the loop.  
8. Ship propulsion modelling. Numerical modelling of propellers and engines. Holistic ship modelling. Analysis of the dynamic response in open loop.
9. PID controller. Theory. Coefficients assessment. Examples.
10. Propulsion simulation. Propulsion control system architecture. Shatfline revolution control. Ship speed control.
11. 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

MICHELE MARTELLI (President)

TATIANA PAIS (President)

CESARE MARIO RIZZO (President Substitute)

RAPHAEL ZACCONE (President Substitute)

LESSONS

LESSONS START

https://corsi.unige.it/9268/p/studenti-orario

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 sessions.

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