Review of Underwater Vehicles

1
Review of Underwater Vehicles

• Module 1, Section 1

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Types of Underwater Vehicles
Insert Fig. 1.3 from text book
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Types of Underwater Vehicles

• Manned Vehicles
• Unmanned Vehicles
• Non-Vehicles

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Manned Vehicles

• Submarines

• Atmospheric Diving Suit

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Submarines

• Military
• Research
• Tourist

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Military Submarines

• Classified by Propulsion System
• Nuclear
• Diesel-Electric
• Classified by Mission
• Attack
• Missile

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Research Submarines

• Submersibles
• Smaller
• Carries 2 to 3 scientists

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Tourist Submarines
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Atmospheric Diving Suit

• Resemble space Suits
• One person Submersible
• Expensive to maintain

10
OceanWorks Atmospheric Diving Suit (ADS) The
best current example of non-hyperbaric
underwater intervention. The secret is in the
pressure balanced joints. Note claws and limited
visibility.
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Unmanned Vehicles

• ROVs
• AUVs
• Hybrid Vehicles

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ROVs

• Free-Swimming
• Bottom Crawling
• Structurally Reliant

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Free Swimming ROVs

• All are tethered
• Tether provides, power and data
• Equipped with video/TV Cameras
• Highly maneuverable

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Free Swimming ROVs

• Heavy Duty Work Class
• Work Class
• High-Capability Electric
• Small (electric) ROV Observation Class

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Heavy Work Class

• They primarily service the oil and gas industry
• 225 Horsepower - 2900 pounds of vertical lift
• Multiple heavy tools

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Work Class
Electro-Hydraulic 100-200 HP Drilling support,
Construction, Pipeline or Inspection

• Millennium

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High-Capability Electric

• Compact work class system
• Not as powerful as hydraulic
• 2000-4000 lbs
• Payload 220-440 lbs
• Depth capacity to approximately 3,000

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Small (electric) ROV(Observation Class)

• Lower Cost
• Usually less than 10 HP
• Used for inspection
• Observation
• Search and Rescue
• Scientific Exploration

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Bottom Crawling ROVs
500 Horsepower Cable and Pipeline, Trencher

• Large
• Heavily Weighted
• Used for trenching and burying cable

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Structurally Reliant ROVs

• Attached to various types of underwater
  structures
• Used for cleaning or inspecting structure they
  are attached to

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AUVsAutonomous Underwater Vehicles

• Tether less
• Carries own power
• No pilot
• Pre-Programmed
• Easy Launch and Recovery

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Gliders

• Require less stored energy

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Hybrid Vehicles

• Nereus
• Can be operated as an ROV or as an AUV
• http//www.whoi.edu/home/interactive/nereus/

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Non-Vehicles

• Underwater Habitats
• Tow fish
• Anchored Platforms

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Underwater Habitats
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Tow fish
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Anchored Platforms