The dynamic model reveals the dynamic action of string, it is instructive to design new rock bit and study drilling mechanics.
通过研究得出了一套研究钻柱系统动力学模型及求解方法，对新形钻柱的设计和钻井力学的研究具有指导意义。
The article introduced methods of drilling shaker dynamic measurement based on IVC, taking damping coefficient, natural frequency and vibration model as examples.
并以振动筛阻尼系数、固有频率和振型为例，介绍了基于智能控件化虚拟仪器技术的钻井振动筛动态特性检测方法。
On the basis of the interaction model between formation and rock bit, a lateral vibration dynamic model of the rock bit was established under the interaction between drilling string and rocks.
在建立牙轮钻头与井底岩石互作用模型的基础之上，建立了基于钻柱和岩石互作用下的牙轮钻头横向振动动力学模型。
Using this method, the author has modified the initial dynamic model of the structure with column and base in the radial drilling machine model.
采用本方法对摇臂钻床模型中立柱与底座结构系统初始动力学模型进行了修正。
Secondly, dynamic model of deep-hole drilling system with the two degrees of freedom are established in the light of principles of machining chatter in cutting processes.
随后，根据速度反馈和位移延时反馈的颤振原理，建立了深孔钻削加工两自由度颤振动力学模型。
The utility model discloses a universal drilling dynamic hand machine which is mainly used for grinding, drilling holes, cutting, etc. to bones in surgical operations.
本实用新型公开了一种通用钻动力手机，它主要用在外科手术中对骨骼进行磨削、钻孔、切割等。
The utility model discloses a universal drilling dynamic hand machine which is mainly used for grinding, drilling holes, cutting, etc. to bones in surgical operations.
本实用新型公开了一种通用钻动力手机，它主要用在外科手术中对骨骼进行磨削、钻孔、切割等。
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