Numerical Simulation Research on Cutting Rock with a PDC Cutter Assisted by an Impact Force | Zendy

Yong Wang | Zendy; Hongjian Ni | Zendy; Ruihe Wang | Zendy; Bin Huang | Zendy; Shubin Liu | Zendy; Heng Zhang | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Numerical Simulation Research on Cutting Rock with a PDC Cutter Assisted by an Impact Force

Author(s) -

Yong Wang,

Hongjian Ni,

Ruihe Wang,

Bin Huang,

Shubin Liu,

Heng Zhang

Publication year - 2022

Publication title -

advances in civil engineering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.379

H-Index - 25

eISSN - 1687-8094

pISSN - 1687-8086

DOI - 10.1155/2022/8282104

Subject(s) - amplitude , conical surface , volume (thermodynamics) , impact , low frequency , frequency spectrum , mechanics , materials science , structural engineering , physics , engineering , optics , telecommunications , spectral density , composite material , quantum mechanics

Extensive studies have been carried out on cutting rock with a PDC cutter, but cutting rock assisted by impact force is rarely studied. In this paper, cutting rock using conical and cylindrical PDC cutters assisted by impact force were researched with the explicit dynamic model. The laws of cutting rock using a cylindrical cutter assisted by impact force are the same as those of a conical cutter. There are thresholds of impact frequency and amplitude when they are single variables. When impact frequency is lower than the threshold frequency, the impact frequency is the dominant frequency in the frequency spectrum of weight on bit (WOB), and the amplitude of dominant frequency and removal volume decreases with the increase of impact frequency. When the impact frequency is higher than the threshold frequency, there is no dominant frequency in the frequency spectrum of WOB, and the removal volume behaves the same. When the impact force is lower than the threshold amplitude, there is no dominant frequency in the frequency spectrum of WOB, and it does not affect the removal volume but the removal volume is positively correlated with the impact amplitude. When the impact amplitude is higher than the threshold amplitude, the removal volume is also positively correlated with the impact amplitude, and the removal volume assisted by low-frequency (20 Hz and 40 Hz) impact force is higher. The frequency threshold and amplitude threshold of the conical cutter are smaller than those of the cylindrical cutter. Although the cutting depth and removal volume of the conical cutter are lower than those of the cylindrical cutter, the amplifications of cutting depth and removal volume of the conical cutter are higher than those of the cylindrical cutter when assisted by impact force.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research