中文摘要：

为研究胶筒与套管之间摩擦接触问题,运用MMW-1型立式万能摩擦磨损实验机对胶筒与套管之间摩擦因数进行了测定;以测定数据为依据,基于橡胶材料Mooney-Rivlin模型,采用罚函数与库伦摩擦原理,考虑橡胶大变形非线性,对胶筒与套管摩擦接触问题进行了数值模拟。结果表明：接触面在无润滑剂下的摩擦因数最大,为0.515,油基润滑下最小,为0.122,其余润滑条件下介于0.122～0.515之间;随着摩擦因数的增大,摩擦应力逐渐增大,接触压力逐渐减小,胶筒等效应力先增大后减小,摩擦因数为0.3时,可以得到较好的接触压力;随着轴向载荷的增大,接触压力、摩擦应力及胶筒等效应力逐渐增加;在轴向载荷不变下,胶筒厚度对接触问题影响较大;最后对胶筒的结构进行了优化设计,得到全段圆弧设计为更好的胶筒结构。

英文摘要：

To study frictional contact problem between rubber tube and the casing, The friction coefficient is measured with Vertical universal friction and wear testing machine that type is MMW - 1. Based on Mooney-Rivlin model of rubber material, using the principle of penalty function and coulomb friction and Combining with rubber nonlinear large deformation problems, the frictional contact problem of Rubber tube and casing is analyzed by the finite element with measured data. The results shown that the friction coefficient of contact is the maximum and 0. 514 in the absence of lubricant, the minimum and 0. 122 under oil lubrication, and others is 0. 122 - 0. 514. With the increase of friction coefficient, friction stress increase gradually, but the contact pressure decrease as a whole. Equivalent stress of rubber tube first increases then decreases. When friction coefficient is 0. 3, contact pressure can be better. With the increase of axial loading, contact pressure, friction stress and the equivalent stress of packing element increases gradually. Keep axial loading, the width of rubber tube has greatly influenced on contact problem. Finally, the structure of rubber tube has been optimized to obtain a better structure which is entire circular arc.