Simulation of Rock Drilling Process using Smoothed-Particle Hydrodynamics Method
Drilling operation in other planets and discovery of their available resources, as well as exploiting oil and gas fields of earth planet have focused the attention of the researchers on finding some ways to reduce drilling time and cost. In this regard, the use of optimized and well-designed drilling tools, especially drilling bits, seems to be very essential. Concerning this issue, a proper and reliable estimation of the rock cutting process using diamond bits could be efficient in this process. On the other hand, the simulation and modeling of the cutting process is a complex issue for which various methods have been proposed. In this paper, concerning the special conditions of rock cutting, the drilling process mechanical analysis was done through smoothed-particle hydrodynamics (SPH) and LS-DYNA was used for analysis purpose. Finally, the results of using this method were investigated. Furthermore, the effect of different rake angles was also investigated. Concerning the hydrodynamic behavior of smoothed particles and the appropriate velocity of meshing and analysis, as well as the heterogeneities of materials such as rock in this code, this method could be considered as suitable for drilling analysis.
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