Numerical analysis of non -smooth surface wear process on bionic bit
The non-smooth surface shape was generated on the bionic bits 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 cant be improved. In addition, the numerical analysis can guide the selection of non-smooth ratio to manufacture the bionic bit.
bionic bit non-smooth ratio finite element method numerical analysis
WANG Chuan-liu SUN You-hong XU Liang
College of construction engineering, Jilin University Changchun, China Materials Science and Engineering School University of Science and Technology Beijing Beijing, China
国际会议
太原
英文
470-473
2010-10-22（万方平台首次上网日期，不代表论文的发表时间）