Chapter I' Introduction

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Chapter I. Introduction
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• Naval Architecture
• the science and engineering of designing ships
  and other kinds of waterborne crafts.
• Kinds of ships
• Sub systems
• Fundamental principles of N.A.
• Statics Dynamics
• Resistance
• Propeller

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I. Category of Ocean Vehicles

• By Support (restoring) Forces
• -Supported by buoyancy force Conventional
  displacement ship
• - Supported by Hydrodynamic force - Hydrofoil
  ships and Planning Hull ships, at Full Speed.
• -Supported by Aerostatic force (pressure) -
  Air cushion vehicles at full speed
• -Ground supported- Ocean drilling platform
  (median and shallow water)

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• By Missions
• -Military Purpose
• Aircraft carrier, Cruiser, Destroyer, Service
  vessel, Patrol boat (gun boat), Landing craft.
• -Non-military Purpose
• a. Transportation Passenger ship,
  Container ships, Bulk carrier (wheat, coal, ore,
  mineral), Oil tanker (very large), Specific
  vessel (LNG, etc.)

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• By Missions (continues)
• -Non-military Purpose
• b. Work Platform Offshore drilling Oil
  and gas production Oceanography research
  Electronic tracking and surveillance satellite,
  communication, weather monitoring and navigation
  assistance Ocean mining and dredging Fishing,
  fish-processing Offshore processing sea water,
  minerals Offshore power generation Offshore
  service construction, pipe laying, salvage and
  retrieval, Ice-breaker Offshore support for
  personnel

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• By Missions (continues)
• -Non-military Purpose
• c. Offshore commerce Breakwaters,
  artificial harbors (marinas) Deepwater mooring
  (buoys) At sea storage (gas and LNG terminal)
  Recreation (artificial reef)
• Sea fish farms Wind Mills Renewable
  Energy

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By Configurations

• Surface displacement Conventional ships (single
  hull) Catamaran (double hull, large deck area,
  small displacement, excellent stability).
• Near Surface Air cushion vehicles Hydrofoils
  and planning hull craft (small displacement, high
  speed)
• Submerged Submersibles submarines Underwater
  habitats Submerged buoys.
• Semi submersibles Very deep, small water plane
• Bottom supported Temporary Permanent jack-up

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Tanker
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Small Water-plane Area Twin-Hull (SWATH)
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Ferry (Catamaran, or SWATH)
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Container Ship
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Container Ship
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Hydrofoil Craft
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Ordinates Drawing of A Plane-Hull Craft
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II. Sub Systems

• Hull Hydrostatic, hydrodynamic performance
  (Resistance)
• Structure Strength of hull
• Machinery and Propulsion Main engine
  propellers
• Ship Control (maneuvering)

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Sub systems (Continues)

• Weapons Deck Machinery
• Navigation Sensors radar.
• Central Computer
• Communications
• Damage Control

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Sub systems (Continues)

• Hotel Provision and Service
• Rigging and Mooring (OCEN 201)
• Economic feasibility General Design
• Preliminary Design
• Ship Yard Dry Dock

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III. General Requirements

• For ocean transportation vehicles
• Mobility, speed
• Ability to carry payload (wt/total displacement)
• Cost (lift/drag or wt/drag ratio)
• Performance (motion, maneuvering, safety)
• See p3 of the textbook

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General Requirements (Continue)

• For Work Platforms
• - Performance motion, station keeping,
  structure.
• - Logistics mobility, delivery system, support
  systems.
• - Economics initial, operating cost,
  maintenance.