The result shows the following important points. The notch coefficientof interference-fit composite joint is less than the notch coefficientofsliding-fit composite joint;
研究结果表明复合材料干涉配合接头的有效应力集中系数小于复合材料间隙配合接头的有效应力集中系数；
2
The deformation coordination equation of worm gear for rolling cone worm gearing is introduced, and the formulae of forces analysis and the rolling - and - sliding friction coefficient are given.
From the model, the landslide thrust and remanent sliding resistance behind the piles can be calculated with the limit equilibrium theory and coefficientof transmission method.