Prof. A. HAGE,

Code = EMSHIP S1-3 (Semester S1)

Workload: Lectures (30h), projects (60h)

Number of credits: 6

Objectives:

The objective is to perform a complete project of a ship (including the general arrangement, scantling, stability, drawings, etc.). The lecture covers the following aspects:

• Ship design methodology & project.
• CAD & CAM tools – project oriented.
• Maritime regulations & classifications societies – project oriented.

Content:

a) SHIP DESIGN METHODOLOGY & PROJECT

• • Set up of project: Mission of naval architecture, principal steps of the project, program of ship «Loop of ship», definition of the main dimension (lengths, surfaces, volumes). Displacement and weight estimation. General characteristics: coefficients in function of the speed, geometric characteristic of hull, adjustment of dimensions for good behavior in sea and stability, control of stability and of trim. Propulsive power: practical rules of dimensioning, special propulsions and their utilizations. Energy on board: Balance sheet of electric and organization of distribution of energy. Protection against corrosion. Consistency of the project and final control.

  • Multihull hull: Planning catamaran, catamaran with foil, SWATH, SLICE, with Outriggers. Comparison - advantages and disadvantages: resistance, seakeeping, performances in sea, behaviors of route, maneuverability, control of positioning, structural resistance. Recommendations for concept and design of multihull.

  • Explosion: Impact of shock and grounding on design of ship. Dimensioning following empirical formulations.

b) CAD & CAM TOOLS – PROJECT

• • Use of CAD (2D, 3D) and CAE tools in ship design.
  • Software for ship design (Maxsurf, Lunais, Napa, Argos, Rhinoceros): 3D hull modeling by using NURB Surfaces (fast and intuitive modeling of the hull shape by means of control points), general arrangement, tank capacities, weight estimation, stability, external aspect, internal structure.
  • Numerical Simulations and calculations:
    • CFD & Ship resistance: Fluent, Fine Marine
    • Structural analysis (FEM: SAMCEF, LSDYNA&USA; MARS): linear static analysis, non-linear analysis, Simulation of grounding and collisions, Underwater and air explosions.Virtual Reality: Virtual Enterprise & Exchange of technical data.

c) MARITIME REGULATIONS & CLASSIFICATIONS SOCIETIES

• • Rules approach (classifications societies): BV, ABS, Lloyds, Applications using classification society rules. International regulations: IMO, IACS, SOLAS.
  • Classification, surveillance and inspection for maritime and inland ships.
  • Environment: Protection against pollution «MARPOL».
  • Risk assessment: pollution by hydrocarbons, impact on ship design.

Recommended reading:

Basic ship theory (E. C. Tupper, KJ Rawson) and Principle of Naval Architecture (Edward V. Lewis)

Prerequisites:

This lecture is an introduction (design oriented) to Ship Design. Applications and exercises to small craft are given in the ULiège-ANAST Lectures (see here after “Design of Small Crafts and High Speed“).

More advanced and complementary lectures in Sailing Boat, Pleasure Yacht are available by selecting Genoa University - Polo Universitario di La Spezia - for the third semester (see lecture contents here after).

Form of exam:

Oral – discussion about student project (30 min).