Wednesday, June 15, 2011

Hydroplaning, and how to fight it?

Aquaplaning - is slipping through the water. Naturally, that is not such as water skiing, but in the physical sense is very similar. The fact is that while driving on wet surfaces creates a so-called "water bank" that occurs before each wheel due to the fact that the car displaces the water from its contact patch with the road. Clearly, this contact patch - just four points touch the road tires. Accordingly, in each of these points and there is a shaft of the displaced water. The car pushes him in front of him, overcoming the additional rolling resistance, which reaches 70 kgs. But at one point, the rate exceeds a certain maximum allowable value for the coating and the thickness of the water cover, and starts aquaplaning - free "flight" of the car on a wet surface of the roadway. The speed at which hydroplaning occurs, varies, and depends primarily on the quality of tires and how smooth the road. Tire quality affects how efficiently water is drained from the contact patch, and the quality of road surface on just how long the aquaplaning. If the road is flat and covered with the same uniform layer of water, aquaplaning will last for as long as the tires do not recover the ability to take water from the contact patch. If the road is very smooth (as we happen everywhere), then hydroplaning may stop as soon as the wheels will fall on the dry, or located on a small hill section of road. The danger here is that under different wheels may be areas with a different coefficient of adhesion, and drift may not occur due to skidding of all wheels, but due to the fact that the torque will be applied only on one wheel, which has contact with the solid surface. Better to avoid aquaplaning - buy good rain tires and rain to lower the rate. Fortunately, this problem is being given great attention, and almost all the efforts of manufacturers of automobile tires are concentrated on the behavior of the tire under wet road. If there was hydroplaning, the best way to stop it - slow down his car and just wait for restoration of adhesion between wheels and road surfaces.

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