ПЕРЕХОДНЫЕ ПРОЦЕССЫ ДИНАМИЧЕСКОГО КРУЧЕНИЯ КОЛОНН ГЛУБОКОГО БУРЕНИЯ ПРИ ВРАЩЕНИИ
International Journal InternaukaCilt 2017/5, Sayı 5
A wave model of torsional autovibrations of homogeneous drill string is elaborated in the form of a torsional pendulum. The computer simulation of non-stationary torsion motions of the drill string bits is performed for the cases of the drill string …