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Speed wobble (also known as shimmy, tank-slapper, [1] or death wobble) is a rapid side-to-side shaking of a vehicle's wheel(s) that occurs at high speeds and can lead to loss of control. It presents as a quick (4–10 Hz) oscillation of primarily the steerable wheel(s), and is caused by a combination of factors, including initial disturbances ...
In the tire factory, the tire and wheel are mounted on a balancing machine test wheel, the assembly is rotated at 100 r/min (about 5–7 m/s (18–25 km/h; 11–16 mph) with recent high sensitivity sensors) or higher, 300 r/min (about 25–27 m/s (90–97 km/h; 56–60 mph) with typical low sensitivity sensors), and forces of unbalance are ...
When a wheel is pushed upwards by a bump in the road, the inertia of the wheel will cause it to be carried further upward above the height of the bump. If the force of the push is sufficiently large, the inertia of the wheel will cause the tire to completely lift off the road surface resulting in a loss of traction and control.
One of those vehicles, a 2009 ES 350, was given as a loaner car to California Highway Patrol officer Mark Saylor on August 28, 2009. Saylor and his wife, daughter, and brother-in-law were driving on State Route 125 in San Diego, California, when their car accelerated out of control and crashed into an embankment, killing everyone in the car ...
Dramatic video shows the moment the pilot of a small plane made a “textbook” emergency landing on just one wheel. Footage from Tuesday afternoon shows the Cape Air Cessna 402C heading back to ...
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Here are 8 easy ways to turn your boring treadmill run into a fun and exciting workout. Listen closely then get to running! Listen closely then get to running! Photo: Getty
A wheelspin occurs when the force delivered to the tire tread exceeds that of available tread-to-surface friction and one or more tires lose traction.This leads the wheels to "spin" and causes the driver to lose control over the tires that no longer have grip on the road surface.