This article is about car handling. For the topic in aviation, see Sideslip angle.
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'Deflected' tread path, sideslip velocity and slip angleGraph of cornering force vs slip angleA coordinate system used for tire analysis by Pacejka and Cossalter. The origin is at the intersection of three planes: the wheel midplane, the ground plane, and a vertical plane aligned with the axle (not pictured). The x-axis is in the ground plane and the midplane and is oriented forward, approximately in the direction of travel; the y-axis is also in the ground plane and rotated 90º clockwise from the x-axis when viewed from above; and the z-axis is normal to the ground plane and downward from the origin. Slip angle and camber angle are also shown.
In vehicle dynamics, slip angle[1] or sideslip angle[2] is the angle between the direction in which a wheel is pointing and the direction in which it is actually traveling (i.e., the angle between the forward velocity vector and the vector sum of wheel forward velocity and lateral velocity , as defined in the image to the right).[1][3] This slip angle results in a force, the cornering force, which is in the plane of the contact patch and perpendicular to the intersection of the contact patch and the midplane of the wheel.[1] This cornering force increases approximately linearly for the first few degrees of slip angle, then increases non-linearly to a maximum before beginning to decrease.[1]
The slip angle, is defined as
^ abcdPacejka, Hans B. (2006). Tire and Vehicle Dynamics (Second ed.). Society of Automotive Engineers. pp. 3, 612. ISBN 0-7680-1702-5.
^Cossalter, Vittore (2006). Motorcycle Dynamics (Second ed.). Lulu.com. pp. 47, 111. ISBN 978-1-4303-0861-4.
^Clark, S.K. (1971). Mechanics of Pneumatic Tires (1st ed.). NHTSA. Retrieved 26 February 2023.
In vehicle dynamics, slipangle or sideslip angle is the angle between the direction in which a wheel is pointing and the direction in which it is actually...
reverse Ackermann geometry to compensate for the large difference in slipangle between the inner and outer front tires while cornering at high speed...
e. rotate it around its vertical axis. In the presence of a non-zero slipangle, this torque tends to steer the tire toward the direction in which it...
slip and is proportional to slipangle at low slipangles. The rate at which cornering force builds up is described by relaxation length. Slipangle describes...
resultant force of side-slip occurs behind the geometric center of the contact patch. Slipangle— Slipangle or sideslip angle is the angle between a rolling...
direction of travel is the slipangle. A tire can generate horizontal force where it meets the road surface by the mechanism of slip. That force is represented...
coordinated flight, showing the slip or skid of the turn. The slip indicator is actually an inclinometer that at rest displays the angle of the aircraft's transverse...
a property of pneumatic tires that describes the delay between when a slipangle is introduced and when the cornering force reaches its steady-state value...
the side-slip, away from the direction of the turn. Pneumatic trail is at its maximum when the slipangle is zero and decreases as slipangle increases...
side-slipangle of the tire, the angle between the actual path of the tire and the direction it is pointing, and the camber angle of the tire (the angle that...
Retrieved 2007-01-21. The slip string is commonly referred to as a "yaw string", even though it measures the slipangle, not the yaw angle (i.e. heading).......
on the steering wheel. The car is equipped with Ferrari's latest Side SlipAngle Control traction- and stability-control program. Additionally, the Ferrari...
devices, downforce decreased as the car slowed or reached too much of a slipangle. The 2J competed in the Can-Am series and qualified at least two seconds...
this maximum lateral force, or cornering force, at a slipangle of 6-10 degrees, although this angle increases as the vertical load on the tire increases...
Other features shared with the Superfast include the Manettino dial, side-slipangle control and variable steering weight. The car has been aerodynamically...
the entirety of a corner. The technique causes the rear slipangle to exceed the front slipangle to such an extent that often the front wheels are pointing...
tyre force is directly proportional to the slipangle ( ϕ {\displaystyle \phi } ). This is made up of the slip of the vehicle as a whole modified by the...
ladder slipped. Unless fixed to the wall upon which they are leaning, ladders can slip down easily, especially if the ladder is leaned at an angle lower...
The slip knot is a stopper knot which is easily undone by pulling the tail (working end). The slip knot is related to the running knot, which will release...
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