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Geometric nonlinearity analysis of A-shaped drilling derrick with ANSYS6.0;

基于ANSYS6.0钻机井架几何非线性分析

Experimental modal parameter identification of drilling derrick under ocean wave excitation

基于海洋波浪脉动的海洋钻机井架结构试验模态识别

Oil drilling derricks are important constitutes of oil industry equipments, it belong to large bearing structure.

石油钻机井架是石油工业生产设备中的重要组成部分,属于一种大型承重结构,对油田生产起着重要作用。

Simple optimization method for leg cross-section for K-type derrick;

K型钻机井架大腿箱形截面的一种简便优化方法

The analysis of dynamics characteristic for JJ160/41-K type derrick;

JJ160/41-K型钻机井架动态特性分析

After an analysis of the testing method based on high-capacity encoding optic fiber gratings, the derrick stress testing system that adopts encoding optic fiber gratings as probe is introduced.

在阐述编码式光纤光栅分布式大容量检测方法的基础上,介绍了以编码式光纤光栅作探头的钻机井架应力监测系统。

Analysis and Calculation of Static Stress of Rig Derrick by CAE Software;

应用CAE软件分析计算钻机井架静应力

Application of the high tensile material to the substructure of the super-deep well's rig derrick

高强度材料在超深井钻机井架底座中的应用

Study on Dynamic Characteristic of Double Elevating Drilling Rig Derrick and Substructure;

双升式钻机井架及其底座动态特性研究

Research of Technology Computer Simulation and Software System for Derricks in Usage;

现役钻机井架仿真技术及软件系统研究

Research on Elastic and Elastic-plastic Stability of the Oil Derrik;

石油钻机井架弹性及弹塑性的稳定性分析研究

Calculation of Static Stress and Stability of Model JJ225/43-K Mast;

JJ225/43-K石油钻机井架强度及稳定性计算

Safety Monitoring System with Fiber Grating Based on Drilling Derrick;

基于钻机井架的光纤光栅安全监测系统

Simulation model for in-service rig derrick based on finite dynamic model

基于有限元动力模型的在役钻机井架仿真模型

Experimental Modal Parameters Identification of Oil-drilling Derrick under Ambient Random Excitation

环境随机激励下在役石油钻机井架试验模态参数识别

Experimental modal parameter identification of drilling derrick under ocean wave excitation

基于海洋波浪脉动的海洋钻机井架结构试验模态识别

Preliminary Study on Well Drilling Technique of Semi-Submersible Drilling Platform with Dual Derrick Rig

半潜式钻井平台双井架钻机作业工艺初步研究

To bore(a shaft) with a trepan.

钻用钻井机钻（矿井）

A machine in the tower gradually cuts a narrow hole down into the ground.

井架内的钻机渐渐地往地下钻出一个小洞来。

Development of the TZJ40(B) vertical derrick's traction-driven rig

TZJ40(B)直立井架拖挂钻机的研制

"drilling rig, platform"

"钻井井架,钻井平台,见 oil (drilling) rig"

Design rig's mast structure& rig's substructure.

油井的钻机的井架，珩架及底座结构件的应力分析和设计。

Raise-boring machines

GB/T12761-1991天井钻机

spider bow [for well drilling machines]

星形斗[钻井机用]