Sentence examples for model of drill from inspiring English sources

Firstly, the general form of the quasi-static model of drill string system (forward model) is given.

Given the currently inadequate understanding about drill string dynamic characteristics in gas drilling of horizontal wells, a theoretical model of drill string dynamics is established in this paper.

Based on the micro-cutting model of single rock particle, the erosion model of drill pipe is established to calculate the erosion wear loss.

This paper is concerned with the comments on "A simple and accurate numeric solution procedure for nonlinear buckling model of drill string with frictional effect".

The numerical simulation model of drill string with positive displacement motor is established by considering the bit-rock interaction, the rock failure behavior, the drill string-borehole interaction and the drill string structural.

A three-dimensional numerical model of drilled shafts within an MSE wall was developed using FLAC3D and was calibrated with published data of a full-scale field study.

The analytical model of drill-soil interaction was developed using the screw conveyance theory and soil shear rupture principle.

The finite element method (FEM) and discrete element method (DEM) have been used to develop the model of drill-soil interaction [9, 10, 11, 12].

The influence of various drilling parameters on the drilling fluid pressure pulse is analyzed, and the model of drilling fluid pressure pulse is presented.

Recently, a hidden attractor has been discovered in different systems such as Chua's system [27], model of drilling system [32], extended Rikitake system [36], and DC/DC converter [38].

Thus, the validity of the regression models of drilling torques and thrust forces are demonstrated.