Car design, safety
One of the first automobile trials occurred in the year 1770, it involved a 3-wheeled, steam propelled carriage as constructed by French engineer, Nicolas Cugnot. During it's first test run it was involved in an accident. This has led eventually to the many vehicles we see today and the safety features designed for them.Crumple zones or crush zones at the front and the rear of the car and serve to help absorb the shock of impact in a car crash. They do this by bending and crumpling up, as the name suggests, effectively absorbing some of the crash energy, and dissipating the effect of the crash on its occupants in the safety cage of the vehicle. The crushing of the front or rear of the car during impact increases the length of the deceleration allowing the passenger to experience less extreme forces than if they had a more abrupt halt. The collapsible steering column is an innovation that helps prevent driver injury, (e.g. injuries such as the steering column driving the wheel up into the face or upper body of the driver, even with the airbag this can be unfortunate, as it may be more difficult to get them out of the wreck.) In most collapsible steering columns part of the steering column is solid a
In four-wheel drives this is done individually for any wheel, in different combinations depending on the model, e. nd part is hollow (both fairly simple steel tubes), the solid part fit's into the hollow part, upon impact the solid part is pushed into the hollow part reducing the length of the column, thereby also reducing the injuries to the driver, (driver-commonly known as the nut behind the wheel). For better effectiveness there should also to be some distance between the reinforcement bar and the metal it is protecting. Antilock doesn't reduce stopping distance greatly on dry roads because satisfactory breaking can be achieved on dry roads anyway. A control unit is implemented to reduce brake pressure when it senses that wheel(s) approaching lockup. Not all ABS systems are the same but the basic principles are the same: When braking sensors detect the rotational speeds of specified wheels. Many drivers of ABS equipped cars make the mistake of pumping the brakes while coming to a stop, but there is no need to, in actual fact this may lessen the effectiveness of braking. The "NHTSA"(National Highway Traffic Safety Administration) has discovered from a study, that 3-point seat belts have reduced road deaths by 45% in passenger cars and 60% in small trucks. This is where things like the tread are important Tyre tread: tread is designed to drive off water from under the tyre, thereby reducing the likelihood of "aqua-planing" (i. Bumpers on the front of cars are designed to prevent minor aesthetic damage to the vehicle in low speed collisions, by absorbing crash energy while not inflicting to great a damage on the bumper itself. The general constituents of today's bumper are the plastic cover, over a reinforcement bar of fibreglass composite, aluminium, steel or plastic, they ought also to have some sort of mechanism that will compress to absorb shock, e. when you hit the water it's actually possible to float across a cushion or a thin layer of water causing loss of control). They have been described as, "absolutely our most effective safety device" by U. The tread also helps to better the traction or grip with the road, possibly due to increased surface area, when the tyre spreads out (the crevices in the tyre mean there's more space on the tyres surface), another idea is that well designed tread has superior traction, for the same reasons a finger tip has better grip with a finger print on it, the valleys on the tyre help hold to the ground surface, because (on a lower scale) they supply more planes to hold to.
Common topics in this essay:
Nicolas Cugnot,
Norman Mineta,
System ABS,
Braking System,
Safety Administration,
,
SIDEWALL Protects,
BODY PLY,
TREAD Provides,
BEAD Assures,
steering column,
collapsible steering,
braking system,
antilock braking system,
antilock braking,
collapsible steering column,
absorb shock,
crash energy,
sharp shards,
rear car,
steering columns,
wheels approaching lockup,
absorbing crash energy,
absorbing crash,
front rear car,
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Acceptance Essays
