Airbags Flaws

In the lab of “The Falling Eggs and Automotive Lab”, we had to design a protective device able to hold the egg and allowing it survive from the impact of hitting the ground from the top of the staircase. We did this lab to investigate newton’s Laws and prove how they work. In the lab, we have to observe the forces that act on the egg and evaluate the way they work. We do this lab with an egg to relate to a real life collision with a car. The egg is essentially the person and the device that the egg is in is the Airbag. We use our knowledge about airbags and apply that to this lab in order to make the egg survive and not crack.

According to the National Highway Traffic Safety Administration (NHTSA), “in 2015, seat belt use in passenger vehicles saved an estimated 13,941 lives” (1). The NHTSA goes on to say that almost 30 million Americans still don’t use seat belts on a daily basis. Since vehicle accidents are among the leading causes of death in the United States and even the world, the argument to improve seat belt technology has increased dramatically. Researchers are often more concerned with whether or not people are wearing their seat belts, not the effectiveness of them, until now, although both are incredibly important. Seat belt safety, which is directly related to seat belt technology, has been shown to be increasingly ineffective because of the high severity

The moment a person sets foot in a vehicle it is instinct to take the one safety precaution that is taught since being able to ride in a motorized vehicle; to buckle up. However, it is sometimes forgotten that there is a second safety precaution and an incredible, lifesaving invention that is in every vehicle, and that is the airbag. Each passenger or driver knows of the presence of this safety device in each vehicle, but is it really known how an air bag actually works? Has the thought ever occurred of what is happening at the exact moment of impact in an airbag and what chemical

Front air bags have been on all new cars since 1998 and light trucks since 1999. Most vehicles had them before. Crash sensors connect to a computer and can detect a front collision and trigger the bags. The bags inflate in a few milliseconds then it starts deflating.

Imagine this, class gets out and it’s the end of summer session. You’re all excited, ready to finally relax after a long 8 weeks. A friend invites you to a party 15 minutes away from your house. You and your friend get in the car, but did not buckle your seatbelts and drove off. Your friend turns to you and says, “ Buckle your seatbelt.” You response, “ We’re only driving for a couple of blocks. Nothing is going to happen to us.” When suddenly a car driving on the opposite side of the street crushes into your car. The next thing you know you are in the hospital with server fractures. Meanwhile, your friend only has a few scratches. You were one of the few fortunate ones to survive a car accident without wearing a seatbelt. The seatbelt remains one of the most overlooked devices that can preserve lives. Wearing seat belts is essential to increase the survival rate in car accidents, however not everyone agrees with the importance of wearing a set belt. Three important aspects of wearing a seatbelt are help spread out any force from a collision,

Have you ever wondered why bags that fill with air are so necessary to have in a car? Airbags are devices that are installed in most cars usually on the front and the sides. Airbags fill with air once a collision is sensed in the car and they slowly release air through small holes, this is intending to slow your acceleration down but not rapidly. Airbags work because they slow down your impulse from a fast and dangerous negative acceleration to a slow and safe negative acceleration.

Like everything else on earth, airbags and car accidents are subject to the laws of physics. Basically, something that is heavier or faster will have more kinetic energy. If you crash into something, this means that a heavier car or faster speed will be throwing more force into the crash. Modern cars are made to crumple on impact and take some of this force, but vehicle design is not always enough.

When an airbag is deployed due to the impact from the object, the airbag will deploy. The airbag absorbs some of the force that is affecting the occupant will be absorbed by the airbag, but the force wants to push back from the airbag bouncing the occupant back against the chair, stopping them from hitting the dashboard or the window in front of them.

The equal shock is disseminated over a bigger region, decreasing the greatest force on the body. The safety belt and airbag are both exerting an interaction in the incident and while the seat belt restrains the driver from moving out towards his/her previous position where the air bag is effective in apprehending the occupant and cushioning the impingement. The whole frontal of the human body fully impact when the airbag ejects. Due to the fact, the seat belt only restrains the chest to prevent drivers from forcing out the windshield of the car but the head is excluded. The head forcefully pushed to the airbag with large shock which may eventually break the skull structure. (Paul, 2017)

The airbags have a sensor that contains a steel ball attached to a permanent magnet or a stiff spring. The spring or magnet holds the ball in place through minor accidents when an airbag is not needed—for example, if a car is slightly bumped by another car in a parking lot. When a car goes through a severe collision, a series of three chemical reactions inside the gas generator produces nitrogen gas (N2) that fills the airbag and decomposes the sodium azide (NaN3). The role of the potassium nitrate (KNO3) and silicon

Air bags are intended to provide maximum protection to driver and passenger occupants during a collision. “Head, neck, and chest body regions are considered most vulnerable to severe trauma (Pintar, Yoganandan, Gennarelli, 2000)”. An air bag is rapidly inflated during the impact of a collision. It is intended to serve as a cushion to the driver or passenger to prevent or reduce severe injury. We know that moving objects possess a momentum. The product of the mass and velocity of an object equals its momentum. Newton’s first law of motion states that an object will continue to move in its speed and direction unless forces are acted upon. The vehicle itself along with the passengers inside represents a moving object. Passengers inside, unless restrained or acted upon will continue moving at the speed of

Along with accidents not only comes a little headache or a broken bone, but injuries that stay with you forever such as whiplash and brain damage. Most brain damage incidents occur when you are involved in a side impact collision and the side of your head hits the glass (brain injury). Side impact airbags are just one of the many ways in which this type of life threatening injury can be avoided (whiplash). There is also whiplash, which hurls your head violently, and usually results in long term disability. Since whiplash is so hard to avoid, it can only be avoided by reducing the number of accidents on the streets. Also one of the most painful and most traumatizing injuries that we encounter in accidents are bone fractures, which occur in 65% of all accidents (Bush 11). So in turn by making these cars safer we can all avoid these painful, traumatizing, life-threatening injuries.

Today, seatbelts are an accepted part of routine vehicle operation for millions of drivers and passengers. But the modern three-point automotive seatbelt has only been around since 1959 - and it’s saved thousands of lives since it’s introduction.(seatbelts and car safety) Initially people may find seatbelts uncomfortable, confining or inconvenient simply because they’re not used to wearing them. Those people who have made buckling up a habit can testify that once their use does become a habit, there is no discomfort or inconvenience. It can’t be overemphasized that the seriou discomfort and inconvenience of motor vehicle crash injury in no way compares to the imaginary discomfort or the inconvenience you may think you

have been found to cause injuries in so many accidents that the little good they

example designing an airbag system for a car. In this case, a small error in designing timing constraints (causing the airbag to Published in the very early or very late) can be disastrous and cause injury. RTSs are amongst the most challenging systems to analyses. This is mainly because the correctness Real-time systems based on the actual time at which events occur. Moreover,