AIRCRAFT
STRUCTURE
Inplanet
INFLATABLE
TENT FOR
AIRCRAFT
1.
Hendrirantau
2.
Ivana Aprilia
3. Cathleen Ariella
4. Wai Phyo Lin
5. Bhashkar Pathak
MAHIDOL UNIVERSITY
THAILAND
6. Danial Forouhar
HAILSTORM
•
Associated with thunderstorm
(Changnon et al, 2009)
2
HAILSTORM
The damage with hails is caused by :
1. The size ranges
2. The number of hailstones
3. Wind force during the event.
4. Property of the target
3
HAILSTORM DAMAGES
• Almost $1 billion in one day in Texas, 2018
• About $46 million in India, 2017
4
Why wings are so important?
5
EFFECT OF HAILSTORM
Damage the aircraft’s
wings
Change the
aerodynamics of
aircraft
6
1. LARGE SURFACE AREA
Airbus A380 has the wing
area of 845 m2
7
2. TURBULENT FLOW
• Lifting force
• The hailstones and dents.
• Turbulent flow because of
the dents
8
3. CRUSIAL PARTS INSIDE THE WING
• Wiring, ducting, fuel , etc.
• A380 fuel up to 254 tons.
9
CURRENT
SOLUTION
IVANA APRILIA & CATHLEEN ARIELLA
PADDING (SOFT MATERIAL*)
Padding (soft material)
Limitation
•
•
•
•
* This data introduced by airbus engineer.
Does not totally protect the wings
Manually
time-consuming
Not Safe
Operational obstacle
11
INFLATABLE PROTECTION COVER
Source: Mitzner, P. (2002)
12
PADDING IN MARKET
USA
GERMANY
13
• Light-weight
• Portable
• Strong
• Easy to assemble
• Low cost
• No influence on the wings
FACTORS TO
CONSIDER
• Low human involvement
• No operational obstacle
14
OUR SOLUTIONS
WAI PHYO LIN
THE STORY BEHIND OUR IDEA
• Mosquitoes have two pairs
of wings and 3 pairs of legs.
• The second pair of wings
are meant to reduce the
complexity of structure to
make it more balance.
16
• Mosquitoes have stable posture under blowing wind.
• Aerodynamically, it is a good candidate.
17
SECONDARY STUDY AND IDEA
• Light
• Inexpensive
• Movable
• Sustainable
• Straight forward
• Safe
18
CHOOSING THE BETTER ONE
Design consideration
Inflatable mechanism
19
Design consideration cont.
Fuel tank
Airplane
20
DESIGN DETAILS
DANIAL FOROUHAR
OVERALL APPEARANCE
Aluminum
Tent
Metal structure
PVC
Carrier
22
HOW DOES IT WORK?
Approximately 30 minutes
23
CHALLENGE OF AIR BLOWING
Compressed gas
Rocket gas booster
24
COST
ANALYSIS AND
BUSINESS
OPPORTUNITY
BHASHKAR PATHAK
Cost Details
Current solution- manual
padding
Proposed solution
Time required
At least 3 hours
Approximately 30 minutes
Man hour for applying airplanes
protection
36 man hour
2 man hour
Labor cost( Assume $30/hour)
>$1080
$60
Cost of delay(aircrew cost- 2 pilots,
11 flight attendants+ AOG)
>$4000(3 hours delay)
Average hailstorm occurrence from
2008-2018 near Dallas, Texas
6 times
6 times
Potential cost of airplanes wings
damage and airlines personal injury
$$$$$$$
none
Total operation cost per year
> $30,240 per year per
plane
<$1000 per year per plane
Investment cost
$150,000
Return on Investment
5 years
All assumptions are based in internet data for one A380 airplane.
CONCLUSION
Problem
• Damage, cancelation and etc
because of hailstorm
Current
solution
• Padding
• Not safe, not fast, laborsome.
Inplanet
solution
• Inflatable tent
Advantages
• -Safe - strong
-Durable
• -Fast - portable -convenient
27
REFERENCES
1. https://www.orkin.com/other/amosquitoes
2. https://australianmuseum.net.au/learn/animals/insects/f
lies-and-mosquitoes-order-diptera/
3. www.buildair.com
4. https://www.ebay.com/sch/i.html?_nkw=hail+protection+
for+cars&ul_noapp=true
5. Keklak, R., & Loewenhardt, H. H. (1977). U.S. Patent No.
4,008,730. Washington, DC: U.S. Patent and Trademark
Office
6. Mitzner, P. (2002). U.S. Patent Application No. 09/916,733
Orr, J. (2006). U.S. Patent Application No. 11/108,595
29
THANK
YOU
Inplanet
30