Salta al contenuto principale della pagina

## SHIP CONTROLLABILITY

CODE 60389 2022/2023 6 cfu during the 2nd year of 8738 INGEGNERIA NAVALE (LM-34) - GENOVA ING-IND/01 Italian (English on demand) GENOVA 1° Semester AULAWEB

## OVERVIEW

The course deals with the problem of ship controllability.

The different approaches for the assessment of ship manoeuvrability characteristics will be covered, introducing the basic equation of motion and considering experimental and numerical approaches.

Current IMO requirements will be presented, together with the standard manoeuvres adopted for the assessment of ship manoeuvrability.

## AIMS AND CONTENT

### LEARNING OUTCOMES

Definition of the basic motion equations and of the hydrodynamic characteristics which affect the ship behaviour in terms of manoeuvrability.

### AIMS AND LEARNING OUTCOMES

After attending lectures, the student will be able to analyse problems related to ship manoeuvrability (prediction of manoeuvrability characteristics, design of control means), having knowledge about the effects of the different elements (hull, appendages, propulsors, control means and their mutual interactions); moreover, the student will know how to develop a simple manoeuvrability simulator in Matlab / Simulink environment.

### TEACHING METHODS

Lessons covering theory and classwork.

During classwork a simplified manoeuvrability simulator will be developed (in Excel and successively in Simulink)

### SYLLABUS/CONTENT

Governing equations

Straight line / Directional / Positional stability

Manoeuvring characteristics and standard manoeuvres

Existing rules

IMO (requirements, Pilot card, Wheelhouse poster, Manoeuvring booklet)

NATO (ANEP – STANAG) - RINAMIL

Model tests

Free running model tests

Captive model tests

Non linear equations

SNAME Model

MMG Model

Regressions

Steering devices

Rudder (open water)

Rudder (interaction effects)

Rudder design

Alternative (active) steering devices (Azipod, WJ, etc)

Appendages effects

Short introduction to system Identification

Speed variation

Slow speed manoeuvrability

Manoeuvrability in shallow and restricted waters

Short introduction to direct numerical calculations (CFD)

Notes of the lecturer

Principles of Naval Architecture (PNA) Vol.3

## TEACHERS AND EXAM BOARD

### Exam Board

MICHELE VIVIANI (President)

DIEGO VILLA

BENEDETTO PIAGGIO (President Substitute)

## LESSONS

### LESSONS START

https://corsi.unige.it/8738/p/studenti-orario

### Class schedule

All class schedules are posted on the EasyAcademy portal.

## EXAMS

### EXAM DESCRIPTION

The student will be evaluated by means of an oral examination on all the course program. There are three exams in summer (June, July, September) and two in winter (January and February), plus some additional exams during year to be agreed with the professor.

The exam will regard coursework had during the lectures and theory (usually two questions).

### ASSESSMENT METHODS

The oral exam will consist in the verification of coursework carried out during lectures and in the verification of the level of knowledge gained by the student. The oral exam moreover will allow to evaluate the communicating skills of the student.

### Exam schedule

Date Time Location Type Notes
22/12/2022 09:00 GENOVA Orale
10/01/2023 09:00 GENOVA Orale
27/01/2023 09:00 GENOVA Orale
16/02/2023 09:00 GENOVA Orale
08/06/2023 09:00 GENOVA Orale
06/07/2023 09:00 GENOVA Orale
07/09/2023 09:00 GENOVA Orale

### FURTHER INFORMATION

The students have to sign up for the exams via the online website.