\$20 Bonus + 25% OFF

Question:

Introduction:

Momentum and the rate of change of momentum principle is used in several real time applications. Airbag is one such application where the rate of change of momentum and subsequent reduction in impact force-principle is used for the safety of the passenger in automobile cars. Whenever the car is moving at high speeds there exists very high momentum associated with the car body. When a braking force is applied to stop the car, depending on the time of application of the brake force, the impact of the force will vary. Generally during the impacts and subsequent stoppages of the car, very high forces will act for a short duration of time and hence the impact force acting on the passengers will be very high. Inorder to extend the time of action of the forces air bags will be used. When an airbag hits the passengers in the body, the time duration of the force application will increase and limit the impact force to smaller quantities and hence the human body remains safe. Almost all the new generation cars are employing the air bags to provide safe impact forces to the passengers whenever the car comes in contact with the high magnitude impact forces.

Airbag usually consist of flexible fabric material made external surface and it will inflate in very little time when the automobile undergoes impact or any type of collision. This immediately provides cushioning effect to the occupants by preventing the impact and providing the protection to the bodies by preventing the direct impact with the steering wheel or a window of the car. Airbag with the combination of the seatbelts provide additional support to the passenger from getting impact on. Generally the compressed cylinders will be initiated in the case of impact and the air bags will get inflated when there is collision(Fukaya et al,2008).

Airbags when fist introduced few decades back, they are designed to protect the driver of the car but in the later times all the passengers of the car are designed to get protection from the impacts during the collision of the car.

Governing principle:

The principle is readily understandable from the following equation:

I = F*t = m *(V-u)

I is the impulse, F is the impact force, t is the time of action of the force, m is the mass of the car and the occupants, V is the final velocity of the vehicle,(which will be zero) and u is the initial velocity of the car before the collision process.

Physics in air bag inflation:

Eventhough the exact timings of the airbag functioning varies from design to design, the exact values of the air bag inflation timings will be as follows, It usually takes about 20 milli-seconds for  the crash sensors to sense the collision and to initiate the inflation process. Also the crash sensors do take around 25 milliseconds to decide the airbag inflation process. Also it will take about 20 milli-seconds for the person to land into. After 20 milli- seconds the person landed into the airbag the airbag starts deflation.

If T1 is the time of impact force transmission during a collision force and T2 is the time of impact force transmission with the air cushion. More and more the T2 than T1, lower and lower will be the impact force acting on the driver or the passenger.

Mechanism:

Air bag is a passive working device, which does not require any positive action by the passenger during the collision of the automobile. However still they are considered as supplement device to the active safety devices like seat belts. Air bags are employed both for the body protection as well as for the knee protection of the passengers at present in several standard brands of the automobiles. The exact shape of the inflated airbag, the fabric material used for the airbag and the location of the inflation devices like cylinders do change from one model to another. However still the airbags are popular in almost all types of the cars and are in use throughout the globe. Now days using Airbags has become mandatory by the governmental legislations in several countries including united states of America. As high as 8 safety air bags simultaneously are also in use in several popular automobile brands now a days. Inflation of the airbags can be in as little time as one fifth of a second as well the deflation can also be fast through the holes made in the bag surface. One important requirement of the airbags is the lubrication during the collision process. In most of the cases, the lubrication employed during the inflation of the air bags is some sort of talcum powder, which ideally provides lubrication during the inflation process of the bag. Apart from the pressurized gas cylinders, other type of inflation initiators used with the airbags include controlled chemical reactions resulting in expansion of the airbags. Most commonly the combustion of the sodium azide, which releases nitrogen gas to inflate the airbag. Frontal collisions are the most common type of incidents in number of countries, the usage of the airbags in the frontal side found to avoid the fatalities however still there are few associated implications like facial and ocular incidents to the passengers in the car as reported in the accident incident investigations(Braver et al, 2004)(Buckley et al,1999).

Key requirements:

The first and foremost requirement for the air-bags to operate effectively and to reduce the accident probability is to have proper crash sensors in the automobile. The time taken for the detection of the collision impact should be as low as possible. Since the collision can happen in any direction, the collision arrestors, air bags should also be mounted in all possible direction for complete protection (Bunker et al, 1997). Air bags mounted in frontal protection do arrest collision from the frontal impacts, collisions from the sides and from other curtain holders are other possible directions of mounting the airbags. Whatever may be the inflation mechanism used, the operation of the inflation should be very quick and the air bags should become operational very fast. The lubrication employed for the airbags should function fast to facilitate the free movement of the airbags. Generally air bags are employed as SRS (Supportive restraining systems), they function in combination with the seat belts. Hence the seat belts the active restraining system like seat belts should be functional (should be active) for the SRS bags to work on to protect the passengers (Molia et al, 1996).

Conclusion:

However still there should be research and development required for customizing the airbags for the protection of the children and infants (Graham et al, 1998). However still in several practical observations of the collision and subsequent damage to the passengers, it is found that they are left with visible facial and ocular damages, they are usually caused by the high speed inflation of the airbags during the collision. Still further research and development is needed to reduce these inflation related injuries to the passengers during the collision process (Molia et al, 1996) (Giguere et al,1998)(Pearlman et al, 2001). Recent trends in the airbags as collision arrestors include the usage of the on/off switches which facilitates the user’s choice either to keep seat belts active or not, this is generally done keeping inview of the potential damage that the air bag can cause to the kids and infants during the collisions (Hayashi et al, 1995). In any ways correct mounting and the correct shaping and flexible operational features are the key requirements for the seat belt to successfully operate and protect the passenger from fatal injuries during the collision.

References:

Braver, E. R., & Kyrychenko, S. Y. (2004). Efficacy of side air bags in reducing driver deaths in driver-side collisions. American Journal of Epidemiology,159(6), 556-564.

Buckley, G., Setchfield, N., & Richard, F. (1999). Two case reports of possible noise trauma after inflation of air bags in low speed car crashes. BMJ,318(7182), 499-500.

Bunker, S. M., Minert, D. G., Green, D. J., Saderholm, D. G., & Storey, J. K. (1997). U.S. Patent No. 5,667,241. Washington, DC: U.S. Patent and Trademark Office.

Duma, S. M., Jernigan, M. V., Stitzel, J. D., Herring, I. P., Crowley, J. S., Brozoski, F. T., & Bass, C. R. (2002). The effect of frontal air bags on eye injury patterns in automobile crashes. Archives of ophthalmology120(11), 1517-1522.

Fukaya, K., & Uchida, M. (2008). Protection against impact with the ground using wearable airbags. INDUSTRIAL HEALTH-KAWASAKI-46(1), 59.

Giguere, J. F., St-Vil, D., Turmel, A., Di Lorenzo, M., Pothel, C., Manseau, S., & Mercier, C. (1998). Airbags and children: a spectrum of C-spine injuries.Journal of pediatric surgery33(6), 811-816.

Graham, J. D., Goldie, S. J., Segui-Gomez, M., Thompson, K. M., Nelson, T., Glass, R., ... & Woerner, L. G. (1998). Reducing risks to children in vehicles with passenger airbags. Pediatrics102(1), e3-e3.

Hayashi, T., & Morioka, M. (1995). Major features of the new Mazda Familia.JSAE review16(2), 201-206.

Molia, L. M., & Stroh, E. (1996). Airbag injury during low impact collision. The British journal of ophthalmology80(5), 487.

Pearlman, J. A., Eong, K. A., Kuhn, F., & Pieramici, D. J. (2001). Airbags and eye injuries: epidemiology, spectrum of injury, and analysis of risk factors.Survey of ophthalmology46(3), 234-242.

Cite This Work

"The Airbag." My Assignment Help, 2016, https://myassignmenthelp.com/free-samples/the-airbag.

My Assignment Help (2016) The Airbag [Online]. Available from: https://myassignmenthelp.com/free-samples/the-airbag
[Accessed 29 May 2020].

My Assignment Help. 'The Airbag' (My Assignment Help, 2016) <https://myassignmenthelp.com/free-samples/the-airbag> accessed 29 May 2020.

My Assignment Help. The Airbag [Internet]. My Assignment Help. 2016 [cited 29 May 2020]. Available from: https://myassignmenthelp.com/free-samples/the-airbag.

Latest Management Samples

MRKT20052 Marketing Management And Digital Communications 3

Answer: Background Information The beverage industry specializes in the production of drinks, in particular those beverages that are ready to drink (Chen, 2012). The making of beverages varies depending on beverages being produced. Nexba is an Australian-based company specializing in beverages (Beverages, n.d) The launch of the company took place in 2010 by Troy Douglas and Drew Bilbe The story of Nexba can be traced bac...

MGT3203 Managing Across Borders

• Course Code: MGT3203
• University: Murdoch University
• Country: Australia

Answers: 1: Critically evaluate two different journal articles  Globalization has rendered immense challenging situations among the business organizations in running their entire process of business successfully in various multinational countries. While expanding the business in different geographical boundaries the business organizations cannot be restricted within specific cultural border. Business experts have to implement cross ...

ME5306 Racing Team Management For Communication Plan And Project Budget

• Course Code: ME5306
• University: Brunel University London
• Country: United Kingdom

Answer: Project purpose  The purpose of the project is designing and manufacturing of a racecar for the organization named Renault. The project will describe the execution plan for constructing the racing car in the present racing sports market. The project will include the project scope, objective, constraints and assumptions. The report will identify the project milestones and deliverables based on which the project schedule will be deve...

SH4003 Culture, Society And Ethics For Sociological Conceptual Framework

• Course Code: SH4003
• University: Southern New Hampshire University
• Country: United States

Answer: Introduction  The term “Society”, in the sociological conceptual framework, in general refers to a group of people who interact with each other under a common cultural framework, with the cultural bond being on the basis of gender, race, religious beliefs or the personal and professional activities. However, over time, with the global scenario getting more inclusive and with phenomena like that of Globalization and te...

K23041 Building Surveying

• Course Code: K23041
• University: De Montfort University
• Country: United Kingdom

Answer: Introduction Building Assessment A building assessment has been defined as being a quantitative performance that can be put in usage as one attempts to evaluate prevailing constructions or fresh structure designs. The assessment usually cover features of a building such as site in terms of drainage, paving, Topography, retaining walls, curbing, and lighting, Windows and Walls generally termed as building envelope, Structural, Interio...

Next

Just share Requriment and get customize Solution.

Orders

Overall Rating

Experts

Our Amazing Features

On Time Delivery

Our writers make sure that all orders are submitted, prior to the deadline.

Plagiarism Free Work

Using reliable plagiarism detection software, Turnitin.com.We only provide customized 100 percent original papers.

24 X 7 Live Help

Feel free to contact our assignment writing services any time via phone, email or live chat.

Services For All Subjects

Our writers can provide you professional writing assistance on any subject at any level.

Best Price Guarantee

Our best price guarantee ensures that the features we offer cannot be matched by any of the competitors.

Our Experts

5/5

440 Order Completed

99% Response Time

Jack Arens

London, United Kingdom

5/5

2115 Order Completed

97% Response Time

Kimberley Chen

Singapore, Singapore

5/5

453 Order Completed

98% Response Time

Howard Asuncion

London, United Kingdom

4/5

3076 Order Completed

99% Response Time

FREE Tools

Plagiarism Checker

Get all your documents checked for plagiarism or duplicacy with us.

Essay Typer

Get different kinds of essays typed in minutes with clicks.

Chemical Equation Balancer

Balance any chemical equation in minutes just by entering the formula.

Word Counter & Page Calculator

Calculate the number of words and number of pages of all your academic documents.

Refer Just 5 Friends to Earn More than \$2000

1

1

1

Live Review

Our Mission Client Satisfaction

It was a good assignment, everything was according to details. it was of high quality. I got HD in this assignment

User Id: 306529 - 29 May 2020

Australia

superb work done within the given time limit. really amazing expert who has done my assignment.

User Id: 430182 - 29 May 2020

Australia

good i am happy for your work , i hope i will submit all my assigmnets to you people

User Id: 412937 - 29 May 2020

Australia

Great work. I really do appreciate the professionalism and competence of the expert who completed my work. They did a very good job. English was prefect and content well presented. Thank you.

Australia