CAJ | 학술논문

对影响纵轴式掘进机截割载荷的运动参数进行了分析，在ANSYS中建立了纵轴式掘进机截割头截割煤岩的有限元模型，并基于LS-DYNA对其截割过程进行了仿真分析，获得了截割载荷随时间的动态变化曲线。针对截割过程中对截割载荷影响较大的运动参数，包括截割头钻进速度、摆动速度和转速等对截割载荷的影响进行了比较分析。仿真结果表明，截割载荷随截割头钻进和摆动速度的增大而增加，随截割头转速的增大有所降低。分析结果为合理选取截割头运动参数及提高截割头的截割性能提供了理论依据。
대영향종축식굴진궤절할재하적운동삼수진행료분석，재ANSYS중건립료종축식굴진궤절할두절할매암적유한원모형，병기우LS-DYNA대기절할과정진행료방진분석，획득료절할재하수시간적동태변화곡선。침대절할과정중대절할재하영향교대적운동삼수，포괄절할두찬진속도、파동속도화전속등대절할재하적영향진행료비교분석。방진결과표명，절할재하수절할두찬진화파동속도적증대이증가，수절할두전속적증대유소강저。분석결과위합리선취절할두운동삼수급제고절할두적절할성능제공료이론의거。
The kinematics parameters which affect the cutting loads of roadheader cutting head were analyzed, and the finite element model of cutting process was established and the simulation of cutting process of cutting head was carried out based on ANSYS/LS-DYNA, the time history dynamic curve of cutting load was obtained. Aimed at the kinematics parameters including vertical drilling velocity, swinging velocity, and rotation velocity which affect the cutting loads, a comparative analysis was carried out. The results show that cutting loads increase along with the increase of vertical drilling and swinging velocity as well as the decrease of rotation velocity. All the results achieved above provide theoretical basis for choosing kinematics parameters and improving cutting performance.