Sultan Qaboos University
College of Engineering
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
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
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
Sultanah
• SULTANA was the first ship from the Sultanate of Oman to
visit the New World
• In 1839 Sayyid Sai’d 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.
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
L
D
• 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
Sultanah’s 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.
> 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.
Material selection for the hull
Minimum
maintenance
High strength
and great
durability
Seamless
construction
Fiberglass
Freedom
from
corrosion and
rust.
Lower price
Sultanah’s hull
>> Hull was fabricated using the process of
molding:
Pedal
and
chain
propeller
Propulsion
system
Main
Shaft
Gearbox
Pedaling system
and chain
Gearbox
•
•
•
•
Spiral Bevel Gears
Ratio: 3:1
Weight: 2 Kg
Combined Chain and Gearbox provides a ratio
of 6:1.
Shaft
• 3 dimensions for the aluminum shafts were selected
and compared
• 20mm Aluminum solid shaft(max stress=329,574)
• 20mm outer diameter 15mm inner diameter aluminum
hollow shaft (max stress=365,199)
• 20mm outer diameter 18inner diameter aluminum
hollow shaft(max stress=832,750)
• All the shafts are 780mm in length
• Yield strength Al=414Mpa
• 15-20H was chosen since the results are very close to
the solid shaft but the weight is much more less .
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/s
RPM = 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,
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
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.
Control
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.
Safety
• Submarine Safety Markings
– Hatches
– Control Surfaces
– Control Surface Guard
– Propeller
• Strobe Light
– Visible 360°
• Emergency Buoy
– Alerts crew to injured pilot
Design door locks
Strobe Light
& Mechanism of Emergency Buoy
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 training’s
were regularly done by the crew
members
Journal and Budget
#
Item
Construction of the
1 submarine Hull
2Other Submarine material
Diving lessons and
3 certificates
4Diving equipment's
5Miscellaneous
TOTAL
Cost(Omani Rial) Cost(US Dollars) Notes
3,500
9,117
4,000
10,419
600
1,563
4,100
For 5
10,680 students
100
260
13,200
34,385
Sponsorship
• 3 Sponsors:
• Qalhat LNG SAOC
• DryDocks Oman
• STRABAG Oman L.L.C
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