CAJ | 학술논문

针对TBM刀群回转切削问题，建立了17寸盘形滚刀刀群切削岩石的数值仿真模型，使用有限元仿真分析软件ANSYS LS-DYNA对不同工作模式下的盘形滚刀回转切削岩石工作过程进行仿真。仿真结果表明，通过对盘形滚刀刀间距进行优化设计，分析不同刀间距下滚刀的力学参数，得到在该地质条件下，中心滚刀最优刀间距为75 mm、正滚刀最优刀间距为80 mm；通过对边滚刀安装角度进行优化，分析不同安装角度下滚刀的力学参数，得到边滚刀最优安装角度为6．5°；通过对滚刀切削岩石的顺次切削角度进行优化，分析不同顺次切削角度下滚刀的力学参数，得到正滚刀最优顺次切削角度为30°、边滚刀为20°。
침대TBM도군회전절삭문제，건립료17촌반형곤도도군절삭암석적수치방진모형，사용유한원방진분석연건ANSYS LS-DYNA대불동공작모식하적반형곤도회전절삭암석공작과정진행방진。방진결과표명，통과대반형곤도도간거진행우화설계，분석불동도간거하곤도적역학삼수，득도재해지질조건하，중심곤도최우도간거위75 mm、정곤도최우도간거위80 mm；통과대변곤도안장각도진행우화，분석불동안장각도하곤도적역학삼수，득도변곤도최우안장각도위6．5°；통과대곤도절삭암석적순차절삭각도진행우화，분석불동순차절삭각도하곤도적역학삼수，득도정곤도최우순차절삭각도위30°、변곤도위20°。
In this paper a numerical simulation model of 17-inch disc cutter group cutting rock is established.The objective is to find the most effective rotating cutter motion of tunnel boring machines ( TBM) cutter group.The process of disc cutter cutting rock in different working modes is simulated using the ANSYS LS-DYNA software ap-plication.The mechanical parameters of the hobbing cutter under different cutter spacing, different mounting an-gles, and different sequentially cutting angles are analyzed.Simulation results show that under the specific geolog-ical condition the optimum cutter spacing of the center cutter is 75 mm, the positive cutter is 80 mm, the optimum cutter mounting angle of the edge cutter is 6.5°, the optimum sequentially cutting angle of the positive cutter is 30°, and the edge cutter 20°.