| 摘要 |
<p>A tyre stud in which the overall length L of the stud, the radius r of the stud body, the protrusion b of the tip and the radius r1 of the tip are related such that the expression lies between the limits 3.3 x 105 and 8.2 x 105 where: a1 = a2 = 67468.8r a3 = a4 = (7000.0b + 3.0)r2 a5 = 21476.0r(0.015 + b - L) a6 = 7560117.0r2(b + 0.00043) a7 =</p> |
