The result shows that load, seal gap and seal height have influence on the maximum stress while friction coefficient has little influence on it.
分析表明，载荷、密封间隙、橡胶密封筒高度对应力最大值有影响，而摩擦系数影响很小。
2
The dependence of the static friction force on a rod immersed in granular matter on the filling height of granules and the diameter of the rod is studied experimentally.
通过实验研究了圆棒在颗粒物质中受到的摩擦力与颗粒填充高度及棒径的关系。
3
Based on this model, we analyze the effects of the change of wave height, wave's incident Angle, bottom friction coefficient and topography on rip current, and some useful conclusions are reached.