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Slip (vehicle dynamics) : ウィキペディア英語版 | Slip (vehicle dynamics)
In (automotive) vehicle dynamics, slip is the relative motion between a tire and the road surface it is moving on. This slip can be generated either by the tire's rotational speed being greater or less than the free-rolling speed (usually described as ''percent'' slip), or by the tire's plane of rotation being at an angle to its direction of motion (referred to as slip angle).〔(Vehicle Dynamics )〕 In rail vehicle dynamics, this overall slip of the wheel relative to the rail is called ''creepage''. It is distinguished from the local sliding velocity of surface particles of wheel and rail, which is called ''micro-slip''. ==Longitudinal slip== The longitudinal slip is generally given as a percentage of the difference between the surface speed of the wheel compared to the speed between axis and road surface, as:
where is the lateral component of the rotational speed of the wheel, is wheel radius at the point of contact and is vehicle speed. A positive slip indicates that the wheels are spinning; negative slip indicates that they are skidding. Locked brakes, , means that is -100% and sliding without rotating. and ≠ , means that ∞.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Slip (vehicle dynamics)」の詳細全文を読む
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