AIMS AND CONTENT

LEARNING OUTCOMES

Provide the student with the knowledge of additional concepts and skills related to ship buoyancy and stability. Deepen the knowledge and application of the main internatinal regulations that deal with safety in terms of ship buoyancy and stability, with particular reference to their influence on the ship design process.

AIMS AND LEARNING OUTCOMES

The course will enable the capabilities to:

design ships in relation with the most relevant rules dealing with the buoyancy and stability of ships in the intact and damaged conditions.

evaulate the final equilibrium condition of a ship (and relevant stability) in case of damage

 identify and discuss the acceptability of the basic parameters of ship safety in terms of buoyancy and stability

TEACHING METHODS

Lectures in classroom.

Assignements, practical applications and discussion on selected topics  during the semester.

Students who have valid certification of physical or learning disabilities on file with the University and who wish to discuss possible accommodations or other circumstances regarding lectures, coursework and exams, should speak both with the professor of the course  and with Professor Federico Scarpa (federico.scarpa@unige.it ), the Polytechnic School - Engineering's disability liaison.

SYLLABUS/CONTENT

Introduction to the Rule Making environment: IMO, Flag State, Classification Societies.

•          The righting arm (RA)

Relation between  RA and ship main dimensions (midship section)

The RA at very high heel angles

    The down-flooding angle: watertight and weather-tight closures

Influence on the righting arm deriving from

-           Trim (initial trim, “free to trim”)

-           Wave profile

•          The linear roll motion of ship for the evaluation of  the roll period

•          Inclining moments:

- effect of wind

- effect of turning at speed

•          The Intact Stability Code 2008

- General stability criteria

- Wave and wind combined effect (whether criterion)

- Special requirements for passenger ships

•          Lightship weigh estimation

•          Inclining experiment

•          Solutions for the ship in damage:

- loading of weight  method

- constant displacement method

•          Deterministic methodology for safety subdivision (former SOLAS)

Floodable length curve

Permissible length curve

Stability requirements

•          Deterministic requirements for oil tankers, chemical tankers, gas carrier

•          Deterministic requirements navy ships

•          Probabilistic methodology for safety subdivision (SOLAS 2009)

Require subdivision index R

Attained subdivision index A

Probabilistic parameter relevant to the damage p,r,v

Probabilistic parameter relevant  the ship survivability s

Selected exercise

•          Ship Grounding

•          Stabillity of underwater vehicles

Comprehensively the topics proposed and discussed during the course can empower the contribution to the following ONU sustainability goals:

Goal 4: Quality education

Goal 8: Decent work and economic growth

Goal 9:  Industry, innovation and infrastructure

Goal 14: Life below water

RECOMMENDED READING/BIBLIOGRAPHY

The relevant IMO safety rules delivered in paper in classroom and/or available on aulaweb.

TEACHERS AND EXAM BOARD

LESSONS

LESSONS START

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

Class schedule

The timetable for this course is available here: Portale EasyAcademy

EXAMS

EXAM DESCRIPTION

Oral test with two oral questions

In order to be admitted to the oral test, students have to present and discuss two practical assignement described during the semester. Students are requested to get in contact with the teacher in order to agree on a meeting for the discussion, to be held one week in advance with respect to the oral exam.

ASSESSMENT METHODS

Oral test: two open questions about topics developed and discussed in classroom during the semester.

Questions are aimed to assess the capability of the students to discuss about theorethical and practical aspects of ship hydrostatics and stability.

Specific attention will be given to the capability of indicating the basic assuptions together with the input data, the target of the procedure and its rational developement.

During the (previous) conversation about the assignements, the students will be requested to give evidence of capability to apply in practice the theorethical methodologies with the proper critical attitude toward results.