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1. Abstract
2. Introduction
3. Definition
4. Classification
5. Advantages and Disadvantages
6. New Trends
7. Conclusion
8. References
ABSTRACT
The development of airbags began
with the idea for a system that would
restrain automobile drivers and
passengers in an accident, whether or not
they were wearing their seat belts.
INTRODUCTION
Airbags were first invented in 1953.The
device was briefly available in the US in
the mid-1970. Ford built an experimental
fleet of cars with airbags in 1971. GM
followed then in 1973. In 1980,Mercedes-
Benz introduced the airbag in its M-B W-
126 car. In 1998 the NHTSA mandated the
airbags in many automobiles.
AN AIR BAG, ALSO KNOWN AS A
SECONDARY RESTRAINT SYSTEM (SRS)
OR AS AN AIR CUSHION RESTRAINT
SYSTEM (ACRS), IS A FLEXIBLE
MEMBRANE OR ENVELOPE,
INFLATABLE TO CONTAIN AIR OR
SOME OTHER GAS. AIR BAGS ARE
MOST COMMONLY USED FOR
CUSHIONING, IN PARTICULAR AFTER
VERY RAPID INFLATION IN THE CASE
OF AN AUTOMOBILE COLLISION.
DEFINITION
THE BAG ITSELF IS MADE OF A THIN, NYLON
FABRIC, WHICH IS FOLDED INTO THE STEERING
WHEEL OR DASHBOARD OR, MORE RECENTLY,
THE SEAT OR DOOR.
THE SENSOR IS THE DEVICE THAT TELLS
THE BAG TO INFLATE. INFLATION HAPPENS
WHEN THERE IS A COLLISION FORCE
EQUAL TO RUNNING INTO A BRICK WALL AT
16 TO 24 KM PER HOUR.
THE AIR BAG'S INFLATION SYSTEM REACTS
SODIUM AZIDE (NAN3) WITH POTASSIUM
NITRATE (KNO3) TO PRODUCE NITROGEN GAS.
HOT BLASTS OF THE NITROGEN INFLATE THE AIR
BAG.
CHEMICAL REACTIONS USED TO
GENERATE THE GAS
Gas-
Generator
Reaction
Reactants Products
Initial Reaction NaN3 Na
N2 (g)
Second Reaction. Na
KNO
K2O
Na2O
N2 (g)
When the car undergoes a head-on collision, a series of two
chemical reactions inside the gas generator produce gas (N2)
to fill the airbag
HERE IS THE LOCATION OF THE AIRBAG
CONTROLLER.
AIRBAGS ARE CLASSIFIED AS
Beardy air bags.
Seat and door-mounted air bags.
Side air bags (inflatable tubular structures
and inflatable curtains).
DOOR-MOUNTED AIR
BAGS.
ADVANTAGES
Air bags supplement the safety belt by reducing the
chance that the occupant's head and upper body will
strike some part of the vehicle's interior.
They also help reduce the risk of serious injury by
distributing crash forces more evenly across the
occupant's body.
Even though the whole process happens in only one-
twenty-fifth of a second, the additional time is enough
to help prevent serious injury.
Air bags costs less than $ 100.
"ONE RECENT STUDY CONCLUDED
THAT AS MANY AS 6,000 LIVES HAVE
BEEN SAVED AS A RESULT OF
AIRBAGS."
DISADVANTAGES
Airbags involve the extremely rapid, violent deployment of a large object, they
can also injure at few circumtances.
Injuries Such as abrasion of the skin, hearing damage (from the sound during
deployment), head injuries, and breaking the nose, fingers, hands or arms can
occur as the airbag deploys.
Airbags can detonate long after the initial crash, injuring rescue workers who
are inside the car.
NEW TRENDS
Many advanced air bag technologies are being
developed to tailor air bag deployment, the size and
posture of the vehicle occupant.
Many of systems will use multi-stage inflators that
deploy less forcefully in stages in moderate crashes than
in very severe crashes.
Some systems may also have an on/off switch, which
allows the air bag to be deactivated.
In 2006, Honda introduced the first motorcycle airbag
safety system ever installed on a production motorcycle.
THE AIRBAG INSTALLED ON HONDA’S GOLD WING
MOTORCYCLE.
CONCLUSION
The airbag will lower the number of
injuries or deaths when automobile go
for an accident.
REFERENCES
Bell, W.L. "Chemistry of Air Bags," J. Chem. Ed.
Insurance Institute for Highway Safety. "Airbag Statistics."
Autolive: Leader in Automotive Safety, "http://en.wikipedia.org/wiki/Airbag".
Insurance Institute for Highway Safety. "Airbag
http://www.hwysafety.org/airbags/airbag.htm
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C1 Rubenstein AP HuG xxxxxxxxxxxxxx.pptx
 

Airbags in automobile.ppt

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  • 3. 1. Abstract 2. Introduction 3. Definition 4. Classification 5. Advantages and Disadvantages 6. New Trends 7. Conclusion 8. References
  • 4. ABSTRACT The development of airbags began with the idea for a system that would restrain automobile drivers and passengers in an accident, whether or not they were wearing their seat belts.
  • 5. INTRODUCTION Airbags were first invented in 1953.The device was briefly available in the US in the mid-1970. Ford built an experimental fleet of cars with airbags in 1971. GM followed then in 1973. In 1980,Mercedes- Benz introduced the airbag in its M-B W- 126 car. In 1998 the NHTSA mandated the airbags in many automobiles.
  • 6. AN AIR BAG, ALSO KNOWN AS A SECONDARY RESTRAINT SYSTEM (SRS) OR AS AN AIR CUSHION RESTRAINT SYSTEM (ACRS), IS A FLEXIBLE MEMBRANE OR ENVELOPE, INFLATABLE TO CONTAIN AIR OR SOME OTHER GAS. AIR BAGS ARE MOST COMMONLY USED FOR CUSHIONING, IN PARTICULAR AFTER VERY RAPID INFLATION IN THE CASE OF AN AUTOMOBILE COLLISION. DEFINITION
  • 7. THE BAG ITSELF IS MADE OF A THIN, NYLON FABRIC, WHICH IS FOLDED INTO THE STEERING WHEEL OR DASHBOARD OR, MORE RECENTLY, THE SEAT OR DOOR.
  • 8. THE SENSOR IS THE DEVICE THAT TELLS THE BAG TO INFLATE. INFLATION HAPPENS WHEN THERE IS A COLLISION FORCE EQUAL TO RUNNING INTO A BRICK WALL AT 16 TO 24 KM PER HOUR.
  • 9. THE AIR BAG'S INFLATION SYSTEM REACTS SODIUM AZIDE (NAN3) WITH POTASSIUM NITRATE (KNO3) TO PRODUCE NITROGEN GAS. HOT BLASTS OF THE NITROGEN INFLATE THE AIR BAG.
  • 10. CHEMICAL REACTIONS USED TO GENERATE THE GAS Gas- Generator Reaction Reactants Products Initial Reaction NaN3 Na N2 (g) Second Reaction. Na KNO K2O Na2O N2 (g) When the car undergoes a head-on collision, a series of two chemical reactions inside the gas generator produce gas (N2) to fill the airbag
  • 11. HERE IS THE LOCATION OF THE AIRBAG CONTROLLER.
  • 12. AIRBAGS ARE CLASSIFIED AS Beardy air bags. Seat and door-mounted air bags. Side air bags (inflatable tubular structures and inflatable curtains).
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  • 15. ADVANTAGES Air bags supplement the safety belt by reducing the chance that the occupant's head and upper body will strike some part of the vehicle's interior. They also help reduce the risk of serious injury by distributing crash forces more evenly across the occupant's body. Even though the whole process happens in only one- twenty-fifth of a second, the additional time is enough to help prevent serious injury. Air bags costs less than $ 100.
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  • 17. "ONE RECENT STUDY CONCLUDED THAT AS MANY AS 6,000 LIVES HAVE BEEN SAVED AS A RESULT OF AIRBAGS."
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  • 19. DISADVANTAGES Airbags involve the extremely rapid, violent deployment of a large object, they can also injure at few circumtances. Injuries Such as abrasion of the skin, hearing damage (from the sound during deployment), head injuries, and breaking the nose, fingers, hands or arms can occur as the airbag deploys. Airbags can detonate long after the initial crash, injuring rescue workers who are inside the car.
  • 20. NEW TRENDS Many advanced air bag technologies are being developed to tailor air bag deployment, the size and posture of the vehicle occupant. Many of systems will use multi-stage inflators that deploy less forcefully in stages in moderate crashes than in very severe crashes. Some systems may also have an on/off switch, which allows the air bag to be deactivated. In 2006, Honda introduced the first motorcycle airbag safety system ever installed on a production motorcycle.
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  • 23. THE AIRBAG INSTALLED ON HONDA’S GOLD WING MOTORCYCLE.
  • 24. CONCLUSION The airbag will lower the number of injuries or deaths when automobile go for an accident.
  • 25. REFERENCES Bell, W.L. "Chemistry of Air Bags," J. Chem. Ed. Insurance Institute for Highway Safety. "Airbag Statistics." Autolive: Leader in Automotive Safety, "http://en.wikipedia.org/wiki/Airbag". Insurance Institute for Highway Safety. "Airbag http://www.hwysafety.org/airbags/airbag.htm