چکیده مقاله
The performance of Tunnel Boring Machines TBMs is critically dependent on the performance of their disc cutters The configuration of the disc cutter, including its diameter, geometry, edge angle, installation angle, and other characteristics of the disc cutter, exerts a significant influence on the performance of cutting processes In the present investigation, the rock cutting process was simulated by employing a linear cutting machine LCM test model within the Abaqus software The effect of the disc cutter's edge angle and its installation angle on the cutting forces and specific energy during rock cutting was investigated The findings of the simulations demonstrate that with an increment of the edge angle from 60 to 120 degrees, the magnitude of the normal force increases with the depth penetration of 5, 7 5, and 10 millimeters by 98, 75, and 89 percent, respectively, and the rolling force increases by 116, 106, and 110 percent Furthermore, an increase in cutting forces is observed with increasing installation angle, and the rate of this increase in forces depends on the edge angle of the disc cutter A comparative analysis of specific energy reveals that the minimum specific energy is achieved at an edge angle of 120 degrees and a penetration depth of 10 millimeters
کلیدواژهها
نویسندگان
Mahboubeh Mohammadi
School of Civil Engineering, College of Engineering, University of Tehran, Tehran, Iran
Massoud Palassi
School of Civil Engineering, College of Engineering, University of Tehran, Tehran, Iran
Morteza Karami
PhD in Rock Mechanics, Faculty of Mining, Petroleum and Geophysics Engineering, Shahrood University of Technology, Shahrood, Iran
شیوه ارجاع
Mohammadi, Mahboubeh and Palassi, Massoud and Karami, Morteza,1404,An Investigation of the effect of edge angle and installation angle of disc cutters on normal and rolling forces in disc cutters with V-shaped edges,14th International Congress on Civil Engineering,Tehran
ارائهشده در
مجموعه مقالات چهاردهمین کنگره بین المللی مهندسی عمران29 مهر 1404 · تهران