OVERVIEW

The course provides naval engineering students with the basic knowledge of shipbuilding, with particular attention to pleasure units. The teaching is articulated, in addition to the steel shipbuilding sector, also in the more traditional sector of wooden boats, in the light alloy of aluminum and in the more recent and widespread fiberglass.

AIMS AND CONTENT

LEARNING OUTCOMES

The aim of the course is to provide knowledge of the types of boats and related structural patterns imposed by their functional characteristics and the material used in construction. It gives the ability to represent the structural details , to read , interpret and develop construction drawings of a boat .

AIMS AND LEARNING OUTCOMES

Course Objectives:

• Overall: Provide students with a comprehensive understanding of shipbuilding principles and practices, with a focus on pleasure boats.

Course Breakdown:

Part 1: Introduction to the Naval World

• Objective: Familiarize students with the terminology and concepts used in the shipbuilding industry, both technical and regulatory.

• Topics:

  • Introduction to the shipbuilding industry
  • Traditional and modern shipbuilding terminology
  • Shipbuilding regulations and standards

Part 2: Materials for Shipbuilding

• Objective: Introduce students to the various materials used in shipbuilding and the experimental methods used to characterize their properties.

• Topics:

  • Properties of shipbuilding materials (steel, wood, aluminum alloys, fiberglass)
  • Experimental testing of shipbuilding materials
  • Dimensioning of simple shipbuilding components

Part 3: Structural Topologies in Shipbuilding

• Objective: Develop students' understanding of typical structural topologies for different shipbuilding materials and their ability to produce manual drawings of these structures.

• Topics:

  • Structural topologies for wooden ships
  • Structural topologies for steel ships
  • Structural topologies for aluminum alloy ships
  • Structural topologies for fiberglass ships
  • Manual drawing techniques for shipbuilding structures

Learning Outcomes:

Upon successful completion of this course, students will be able to:

• Identify and explain the basic terminology used in the shipbuilding industry.
• Describe the properties and applications of various shipbuilding materials.
• Apply experimental methods to characterize the properties of shipbuilding materials.
• Dimension simple shipbuilding components.
• Understand and draw typical structural topologies for different shipbuilding materials.
• Analyze and interpret structural drawings of ship structures.

Additional Notes:

• This course is designed to provide students with a foundation for more advanced courses in structural design for shipbuilding (Costruzioni Navali B B).
• The emphasis throughout the course is on practical applications and real-world examples.
• Students will have the opportunity to gain hands-on experience through laboratory exercises and design projects.

PREREQUISITES

The following prerequisite knowledge is considered necessary to successfully engage with the course topics:

• Calculation of beam load characteristics and evaluation of stresses on the cross section: This fundamental concept from Scienza delle Costruzioni A is crucial for understanding how structural elements in ships behave under various loads. It involves determining the forces and moments acting on a beam and analyzing the resulting stresses within its cross-section. This knowledge is essential for designing and evaluating the structural integrity of ships.

• Definitions of buoyancy, flotation planes, hull coefficients, perpendiculars, and more generally all the main definitions acquired in the course "Geometria dei Galleggianti A" : These essential concepts from Geometria dei Galleggianti A A provide the foundation for understanding the fundamental principles of ship behavior and design. They encompass the study of buoyancy, the concept of flotation planes, the definition of hull coefficients, the significance of perpendiculars, and other key aspects of ship geometry. Grasping these concepts is crucial for comprehending the hydrodynamic performance and stability of ships.

TEACHING METHODS

Given the extensive nature of the course curriculum, the majority of the instruction will be delivered through in-person lectures by the instructor. This format allows for a structured and comprehensive presentation of the course material, enabling students to gain a deep understanding of the concepts and principles involved in ship structures.

To reinforce student understanding and provide opportunities for self-assessment, the professor will assign exercises at the end of each course section. These exercises will cover a range of topics related to the material covered in the lectures and will allow students to apply their knowledge to practical problems.

Students who have a valid certification of physical disability or learning on file at the University and who wish to discuss any accommodations or other circumstances related to lectures, courses and exams, must speak with both the teacher and Prof. Federico Scarpa (federico.scarpa@unige.it), contact person for disability of the Polytechnic School.

SYLLABUS/CONTENT

Course Structure:

The course is divided into five sequential parts spread over two semesters:

Part 1: Introduction to Shipbuilding

• Fundamentals of shipbuilding and basic terminology
• Classification of ships by type, propulsion, and construction material
• Introduction to maritime regulations, classification societies, and key conventions
• Internal subdivision of hull volumes and displacement calculations
• Overview of pleasure boat types: powerboats, sailboats, and hybrid propulsion boats

Part 2: Structural Analysis and Design

• Principles of structural analysis and material testing
• Properties of shipbuilding materials (steel, wood, aluminum alloys, fiberglass)
• Types of beams and calculation of cross-sectional characteristics
• Structural strength and loads acting on ships: primary, secondary, and local stresses
• Longitudinal, transverse, and local structural strength
• Main cross section verification and structural typology of hulls

Part 3: Wooden Yacht Structures

• Characteristics of wood for shipbuilding: anisotropy and heterogeneity
• Types of wood species and their properties
• Laboratory testing for determining mechanical properties
• Structural design and drawings of wooden pleasure boats
• Types of adhesives and protective coatings
• Application of knowledge to create drawings of master sections and watertight bulkheads for wooden yachts

Part 4: Metal Yacht Structures

• General principles of welding, including plate preparation and symbols
• Welding loads and resulting hull details
• Automatic welding, TIG and MIG aluminum welding, and bimetallic joints
• Structural components of a generic steel yacht: bottom, sides, and deck structures
• Transverse watertight bulkheads with stiffeners or crossbeams
• Bow and stern structures, shell development, and steel shipyard equipment
• Corrosion protection for steel and aluminum, anti-corrosive and anti-fouling paints
• Application of knowledge to create drawings of master sections and watertight bulkheads for metal yachts

Part 5: Composite Yacht Structures

• Definition of composite materials and reinforcement types: particulate and fibrous
• Description of reinforcement types and resins, catalysts, accelerators, retardants, and gelcoat
• Polymerization process of a laminate and stress transmission mechanics
• Calculation of mechanical properties using classical lamination theory
• Reinforcement impregnation percentage based on support type
• Lamination methods: manual and spray
• Lamination table for a fiberglass hull and shipyard equipment: molds and polymerization vapor extraction systems
• Advanced lamination methods: vacuum bagging and infusion
• Hull-deck joint using a bladder or sleeper
• Application of knowledge to create drawings of master sections and watertight bulkheads for FRP yachts

RECOMMENDED READING/BIBLIOGRAPHY

Registro Italiano Navale, “Regolamento per la nautica diporto”, Genova 2024.

Peter Du Cane, "High Speed Small Craft", David & Charles Editors, 4th edition (April 1974).

D.Boote, “Elementi di Costruzioni Navali”, Dispense del Corso, Facoltà di Architettura, Genova 1991.

Autori Vari, Ship Design and Construction, SNAME, Ed. 2003.

Autori Vari, Principles of Naval Architecture, SNAME, Ed. 1988.

Hughes e Paik, "Ship structural analysis and Design", SNAMe, ed. 2010

TEACHERS AND EXAM BOARD

Exam Board

GIANMARCO VERGASSOLA (President)

DARIO BOOTE

MARCO GAIOTTI

CESARE MARIO RIZZO

LESSONS

LESSONS START

https://corsi.unige.it/8721/p/studenti-orario

EXAMS

EXAM DESCRIPTION

Student learning is assessed through a final exam that consists of a written test and an oral exam covering the entire course syllabus. There are three exam sessions in the summer (June, July, and September) and two sessions in the winter (January and February). For organizational reasons, students must register for the written exam at least 7 days before the scheduled date.

Written Exam:

The written exam consists of:

• 3 questions in which the candidate must develop freehand structural drawings of a pleasure boat in steel, wood, and composite material. The drawings must be dimensioned and labeled indicatively.

• 1 question in which the candidate must calculate the section modulus of a composite beam section.

Candidates must bring graph paper, pens, pencils, erasers, drawing squares, and a calculator to the written exam. Notes or textbooks are not allowed, and laptops or mobile phones are not permitted.

To be admitted to the oral exam, the candidate must pass the written exam and, in any case, must pass at least two of the first three questions. The results of the written exam are published on AulaWeb.

Oral Exam:

The oral exam usually takes place the day after the written exam and consists of questions on the written exam and the course program in general. The date of the oral exam is scheduled on the exam booking portal. Registration is not required to participate in the oral exam, and there is no provision for freezing the written exam score to take the oral exam in subsequent sessions.

ASSESSMENT METHODS

Written Exam:

The written exam typically aims to assess the student's ability to solve engineering problems of a complexity that can be addressed within a few hours, using simple calculation tools (calculator with the four basic operations and simple mathematical functions). It is generally oriented towards the ability to set up the structural layout design of a pleasure boat.

Oral Exam:

The oral exam complements the written exam if the latter has been graded as sufficient (with a score greater than 18/30), covering topics whose learning cannot be directly verified with the written exam. During the oral exam, the candidate is asked questions that require the solution of simple problems on the whiteboard. The oral exam also assesses the student's communication skills.

The assignment of the grade will take into account:

• Knowledge of the covered topics
• Understanding related physical phenomena
• Exposure capacity
• Problem-solving skills

FURTHER INFORMATION

Exam Registration and Administration Procedures

Exam Structure:

• The final exam consists of both a written and oral component.
• Both parts of the exam must be taken in the same exam session.
• There is no option to freeze the written exam score and take the oral exam in a subsequent session.

Written Exam Registration:

• Registration Deadline: Students must register for the written exam at least 7 days before the exam date.
• Registration Method: Online registration is mandatory through the university's student services portal.
• Reason for Early Registration: Early registration is crucial for organizing exam halls

Written Exam Requirements:

• Materials: Students must bring their own graph paper, pens, pencils, erasers, drawing squares, and a calculator to the written exam.
• Restrictions: Notes, textbooks, laptops, and mobile phones/watches are strictly prohibited during the written exam.

Oral Exam Registration:

• Automatic Registration: Students who pass the written exam (with a score above 18/30) are automatically registered for the oral exam.
• No Additional Registration Required: There is no need to register separately for the oral exam.
• Non-Attendance: Candidates who do not attend the oral exam will be considered to have declined their written exam score and will be required to retake the written exam in the next session.