Notice of RetractionNumerical analysis of non smooth surface wear process on bionic bit
The non smooth surface shape was generated on the bionic bit's crown while the bionic bit was using. For selecting an optimal non smooth ratio, the wear model of non smooth surface was established, then the wear process was simulated by the finite element method. The results indicates that the equivalent stress of rock was increased by 34% and the contact pressure of bionic bit was increased by 8.8% and the contact friction was reduced by 61.4% and the value of non smooth ratio must be limited in a range, if not, the efficiency and life of bionic bit can't be improved. In addition, the numerical analysis can guide the selection of non smooth ratio to manufacture the bionic bit.
2010 International Conference on Computer Application and System Modeling (ICCASM 2010)