Mechanical behavior research on rotary steering eccentric stabilizer
旋转导向偏心稳定器力学特性研究
The design of working fluid control distribution link is one of the key and difficulty point about realizing the orient ed function of rotary steering drilling tool.
工作液控制分配单元的设计是旋转导向钻井工具导向功能的实现关键和难点之一,该单元的工作特性主要取决于上盘阀高压孔圆心角、上下盘阀摩擦副的结构尺寸和摩擦副的密封性。
In order to avoid cross couplings between the vertical and lateral motion,decoupling control of a double-channel control rolling missile autopilot was studied.
为消除旋转导弹自旋所带来的纵向与侧向运动的交叉耦合,进行了双通道控制旋转导弹自动驾驶仪回路解耦控制研究。
Based on the characteristics of rolling missile with double-channel control,the autopilot loop is transferred from body coordinate system to quasi-body coordinate system after a rolling transfer.
根据双通道控制旋转导弹的特点,通过旋转变换,将弹体坐标系下的自动驾驶仪回路变换到准弹体坐标系下,并比较了与倾斜稳定导弹标准自动驾驶仪的区别。
The analysis of the character, principle, and realization for the guidance technology of rolling missile is made.
分析了旋转导弹制导技术的特点、原理、实现方法 ;结合典型型号 ,对旋转导弹制导技术的应用进行了综述 ;并对其发展方向进行了预测。
A moving mass control of rotating missile is a kind of new control mode,it differs from other control modes because it generates an angle of attack and an angle of sideslip directly from the mass motion.
针对导弹变质心这种新的控制方式,建立了变质心旋转导弹准弹体下的动力学模型,由于模型是复杂非线性的,通过按线性化族近似化理论对模型进行了合理简化,并用动态逆控制理论对系统的姿态控制进行了设计,仿真结果表明,所设计的变质心导弹动态逆姿态控制具有很好的快速性、稳定性。
Trajectory simulation of rotating missile is the basis of optimization designs for fins of missile and trajectory.
旋转导弹弹道仿真是弹翼结构优化设计和弹道优化设计的基础。
The analyses on the variable centroid controlled spinning missile were made by utilizing the root locus method.
利用根轨迹法对变质心控制旋转导弹的稳定性进行分析 ,给出了变质心控制导弹稳定的充分必要条件 。
Research on Bending Rotation Test of Rotation Shaft in Point the Bit Rotary Steerable System
指向式旋转导向系统旋转轴弯曲旋转试验研究
Mechanics Model of Rotation Axis in Directive Rotary Steerable Drilling System
指向式旋转导向钻井系统旋转轴力学模型
Design of testing system of oriented experimental rotary table for petroleum drilling
石油钻井旋转导向实验转台测试系统设计
Study on Trajectory Measurement Technology of the Point-the-Bit Rotary Steerable Drilling System
指向式旋转导向钻具钻孔轨迹测量研究
Approaching of Dynamic Point-the-bit Rotary Steering Drilling Tool
动态指向式旋转导向钻井工具设计探讨
Method for eliminating centrifugal acceleration in rotary steerable drilling system.
旋转导向钻井系统中离心加速度消除方法研究
Analog computation of the attitude parameters of rotary steering drilling tool
旋转导向钻井工具姿态参数的模拟解算
Study on dynamic characteristics of controlled objects in stabilized platform of rotary steerable drilling system
旋转导向钻井稳定平台控制对象动态特性研究
Experiment of drying rapeseed by spouted bed with a porous branch rotating draft tube
开孔支管旋转导向管喷动床干燥油菜籽试验
Feedforward fuzzy algorithms research of stabilized platform in rotary steering drilling system
旋转导向钻井稳定平台前馈模糊算法研究
Study on the storage function of the measurement while drilling (MWD) system in rotary steerable drilling tool
旋转导向钻井工具随钻测量系统存储功能研究
DEVELOPMENT OF VARIABLE-ANGLE BENT SUB OF ROTARY STEERING DRILLING TOOL
基于旋转导向钻进方式的可控弯接头发展现状
The Study on Position Measurement and Control System of Bias Unit in the Rotary Steerable Drilling Tool
指向式旋转导向钻具偏置机构位置测控系统的研究
Study of the Hydraulic Systems of Well Drilling and the CFD Simulation of the Revolving Guide Sleeve;
自动防斜钻井液压系统研究及其旋转导向套CFD仿真分析
Contactless power transmission method for rotary steering drilling tool
适用于旋转导向钻井工具的非接触式电能传输方法
Gyroscope-Free Inertial Measurement and Lateral Thrust Control System Design for a Rolling Missile
旋转导弹的无陀螺测量方法及直接侧向力控制
Numerical Simulation of Interaction Between Lateral Jet and External Flow over Spinning Missile
旋转导弹横向喷流/外流干扰的数值模拟研究
A turning to the right.Used especially of the plane of polarization of light.
向右旋转向右旋转，尤指光的偏振面