Abstract：Aiming at the defects of traditional calculation method of cutting load on fully expressing the complex cutting process of cutting head, the method of finite element simulation was proposed to simulate the dynamic cutting process. According to the characteristics of coal and rock which affect the cutting load, several simulations with different firmness coefficient were taken repeatedly, and the relationship between three-axis force and firmness coefficient was derived. A comparative analysis of cutting pick load between simulation results and theoretical formula was carried out, and a consistency was achieved. Then cutting process with a total cutting head was carried out on this basis. The results show that the simulation analysis not only provides a reliable guarantee for the accurate calculation of the cutting head load and improves the efficiency of the cutting head cutting test but also offers a basis for selection of cutting head with different geological conditions of coal or rock.
柴博,李建辉. 不同性质煤岩下掘进机截割载荷研究[J]. 辽宁工程技术大学学报(自然科学版), 2017, 36(2): 170-175.
CHAI Bo, LI Jianhui. Study on roadheader cutting load at different properties of coal and rock. Journal of LNTU.Natural Science, 2017, 36(2): 170-175.