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Numerical Simulation of Rock Cutting with a Diamond Sawblade Based on LS-DYNA

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Listed:
  • Zhiwen Wang
  • Qingliang Zeng
  • Zhenguo Lu
  • Lirong Wan
  • Xin Zhang

Abstract

Aiming at the complex nonlinear dynamic problem of cutting hard rock with diamond sawblades, the process of hard rock cutting with a diamond sawblade was studied based on ANSYS/LS-DYNA. A numerical simulation model of a diamond sawblade cutting hard rock with different rotation speeds, feed speeds, and cutting depths was established to study the effects of the cutting parameters on the cutting force and specific cutting energy consumption and on the damage to the rock. The numerical simulation results demonstrated that the feed speed and cutting depth of the diamond saw are quadratically correlated with the cutting force, but the rotation speed is negatively linearly correlated. The damage region of the rock is positively correlated with the feed speed and cutting depth of the diamond sawblade and has a negative correlation with the rotation velocity. The cutting parameters have a great influence on specific cutting energy consumption. Analysis of the relationship among the cutting parameters and the specific cutting energy with multivariate linear fitting indicated that the cutting speed and cutting depth have a great influence on the cutting energy.

Suggested Citation

  • Zhiwen Wang & Qingliang Zeng & Zhenguo Lu & Lirong Wan & Xin Zhang, 2019. "Numerical Simulation of Rock Cutting with a Diamond Sawblade Based on LS-DYNA," Mathematical Problems in Engineering, Hindawi, vol. 2019, pages 1-15, September.
    • Handle: RePEc:hin:jnlmpe:6462909
    DOI: 10.1155/2019/6462909
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