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RESEARCH OF THE POSSIBILITY OF APPLICATION OF VECTOR QUANTISATION METHOD FOR EFFECTIVE PROCESS CONTROL OF ROCKS DISINTEGRATION BY ROTARY DRILLING
vibro-acoustic signal rotary drilling identification
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2009/10/23
The subject of the paper is investigation of the properties of concurrent vibro-acoustic signal in the process of
rock massif separation with the method of rotary drilling. The aim is to investigate ...
槽孔加工中钻杆系统的非线性运动与动力稳定性（Stability and Nonlinear Response of Drilling Shaft System in Deep Slot Hole Drilling）
槽孔 钻杆 非线性动力学
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2009/5/22
考虑了切削力波动、质量偏心及切削液流体力对钻杆动特性的影响。在求解切削液动态流体力时，引入变分约束原理，在动力积分、迭代过程中实时形成修正的Reynolds方程变分形式的有限元方程及其扰动方程，同时求得了切削液流体力及其Jacobian矩阵，并且使其具有相互协调一致的精度。在求解钻杆系统非线性动力学响应时，通过改变系统的时间尺度, 使系统周期轨迹的周期显式地出现在系统方程中，并将周期也作为一个参数...