三区段振动钻削动态轴向力和扭矩的计算机仿真

Computer Simulation of Dynamic Thrust and Torque for Three Segments in Vibration Drilling

根据斜角切削理论，假设将钻头主切削刃和横刃上的变形过程分别处理为一系列微小的具有动态特性的振动切削单元，从而构造出三区段振动钻削动态轴向力和扭矩的预报模型，并根据该模型对三区段动态轴向力和扭矩进行了计算机仿真。

Based on the theory of oblique cutting,a prediction model of dynamic thrust and torque in three segments of vibration drilling is developed by assuming that the deformation process at the major cutting edge and chisel edge of drills is treated as a number of small vibration cutting elements with different dynamic characteristics.Then based on the model,the computer simulations of thrust and torque of three segments are carried out and the dynamic characteristics are analyzed.