SULTANAH

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Sultan Qaboos University College of
Engineering
SULTANAH
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OUR TEAM

• 4th team working on the submarine
• 1st team
• 3 members
• Hull Design and general setup of the Submarine
• 2st team
• 3 members
• MAIN FRAME
• 3nd team
• 4 members
• Mechanical Components
• 4rd team
• Mechanical component, fixing, and testing

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Members

• 5 members Senior Mechanical Engineering
  Students
• Members
• Haifa Al-Salmi
• Hamed Al-Amri
• Hussein Al-Rashdi
• Ishaq Al-Hassani(Rider)
• Khaleel Al-Riyami
• Khalid Al-Sawwafi (leader)
• Supervisors
• Dr.Jamil Abdo
• Dr.Nabeel Al-Rawahi

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Goals

• Team
• To be the first team from the Arabic world to
  participate in the ISR
• Try our best to achieve one of the top places in
  the race, and if not the benefit from the
  experience as a whole is a prize itself
• Gain valuable team building experience
• Having Fun
• Submarine
• Create an innovative submarine
• Design with high priority for the safety of the
  pilot
• To achieve maximum speed by using an optimized
  hull form and reducing pilot workload ,we are
  aiming for a speed of 8 knots (approx 4m/s)
• To design a control system which will provide the
  maximum and smoothest control possible

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Sultanah

• SULTANA was the first ship from the Sultanate of
  Oman to visit the New World
• In 1839 Sayyid Said bin Sultan ruler of Oman
  ordered his ship the SULTANA to set sail for
  America on a trade mission.
• Started its journey on February 1840 and arrived
  on 30 April 1840 to New York.
• The voyage was not a commercial success but its
  marks the point of successful friendly relations
  between the two countries that continue to this
  day.

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Overview

• Elliptical shaped hull
• Window at front
• 4 fins with Alerions
• 2 bladed propeller
• Weight 105kg
• Diameter 0.760 0.002 m
• Length 3.300 0.03 m

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Design philosophy

• Gain valuable team building experience
• Split the tasks and make each person in charge of
  a task
• And making sure that everyone in the team
  understands what's going on
• Conducting many brain storming sessions
• Learning from previous designs

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Design and Fabrication
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Sultanahs hull

• An elliptical shape was selected, then
  modifications have been carried in order to
  reduce the drag force further.
• Using one of the best standards National
  Advisory Committee for Aeronautics NACA
  shapes.gt NACA shapes divided into different
  groups, each one called series.
• 6-series in NACA shape found to be the most
  appropriate for our situation in designing the
  submarine.
• First a sketch of the desired shape was generated
  using Design Foil software.
• Then Microsoft math was used to come up with 2-D
  cross section drawing for the submarine.
• Finally, inventor was used to generate the 3-D
  model of the hull.

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Material selection for the hull
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Sultanahs hull
gtgt Hull was fabricated using the process of
molding
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PropulsionSystem
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Pedaling system and chain
The pedals
The crank set
The chain
The freewheel
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Gearbox

• Spiral Bevel Gears
• Ratio 31
• Weight 2 Kg
• Combined Chain and Gearbox provides a ratio of
  61.

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Shaft

• 3 dimensions for the aluminum shafts were
  selected and compared
• 20mm Aluminum solid shaft(max stress329,574)
• 20mm outer diameter 15mm inner diameter aluminum
  hollow shaft (max stress365,199)
• 20mm outer diameter 18inner diameter aluminum
  hollow shaft(max stress832,750)
• All the shafts are 780mm in length
• Yield strength Al414Mpa
• 15-20H was chosen since the results are very
  close to the solid shaft but the weight is much
  more less .

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Propeller

• Two-bladed configuration
• Professional software, JAVAProp, was used to
  design the propeller.
• The program inputs are the targets for designing
  the propeller which are velocity, RPM, and power.
  velocity 4.12 m/sRPM 300 Power 294 w
• The outputs are efficiency, thrust and pitch. We
  tried different blade angle for the same angle of
  attack. The highest efficiency, 86, and thrust,
  272.5 N,

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Control(Steering system)

• The main function is to move submarine in the up,
  and down, left, and right directions.
• The material used for the steering system is
  Aluminum.
• The system is controlled by cables

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Control(Steering system)

• Manual Steering by cables
• Advantages
• Easy to connect
• Easy to maintain
• Low cost
• Disadvantages
• Needs high energy to overcome friction
• Needs to be maintained more regularly
• Slightly slow response
• After taking into consideration all the
  advantages and the disadvantages the manual
  steering system was chosen over the hydraulic
  system.

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Control
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Life Support System

• Aluminum 80 SCUBA tank
• Tank allows more than 2/3 leftover air volume at
  the end of one run
• Spare air bottle, attached to the riders weight
  belt.

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Safety

• Submarine Safety Markings
• Hatches
• Control Surfaces
• Control Surface Guard
• Propeller
• Strobe Light
• Visible 360
• Emergency Buoy
• Alerts crew to injured pilot

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Design door locks
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Strobe Light Mechanism of Emergency Buoy
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Testing and Training (Training)

• 5 days of training to get the Open water diving
  license
• At a diving school located in Sidab(Diving
  knight)
• In addition to diving ,fitness trainings were
  regularly done by the crew members

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Journal and Budget
Item Cost(Omani Rial) Cost(US Dollars) Notes
1 Construction of the submarine Hull 3,500 9,117  
2 Other Submarine material 4,000 10,419  
3 Diving lessons and certificates 600 1,563  
4 Diving equipment's 4,100 10,680 For 5 students
5 Miscellaneous 100 260  
  TOTAL 13,200 34,385  
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Sponsorship

• 3 Sponsors
• Qalhat LNG SAOC
• DryDocks Oman
• STRABAG Oman L.L.C

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Conclusion

• We built the first submarine from Asia
• Hull is made from fiber glass
• It is a one man propulsion system
• Proplusion system made of pedals, chain, gearbox,
  shaft, and finally propeller
• Manual steering system