充气子午胎的有限变形理论与计算

本文用有限单元方法计算了充气钢丝子午胎的有限位移变形.其中特别考虑了子午面的翘曲问题^2],用一个称为三维轴对称变形的新型单元成功地模拟了这种特殊的变形模式.另一方面作者也考虑了充气压力载荷的随动性,将这种载荷作用下的变形计算问题归结为一个与变形后轮胎构形有关的非线性方程组求解问题.最后采用了一种特殊的修正Newton迭代法有效地得到了问题的数值解.

THEORY AND COMPUTATION ON FINITE DEFORMATION OF A COMPOSITE RADIAL TIRE

The finite displacement deformation of a composite radial tire is calculated by the FE method; the distortion effect of the meridian section of the tire2] is especially considered and successfully simulated. The inflation pressure as a "following type" is also considered here. Finally the computational problem of such deformation is reduced to solve a set of nonlinear algebraic equations related to the strained configuration of the radial tire. By using a specially modified Newton's iterative method, the numerical results of the problem are obtained.