derrick-
Evaluation method based on the model modification for the oil derrick
基于模型修正的井架评定方法
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Research on Model Updating Method of Derrick Structures Based on Sensitivity Analysis
基于灵敏度分析的井架结构模型修正方法研究
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Lofty derricks dot the landscape in an oil field .
高耸的井架点缀着油田的景色。
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Derricks are scattered here and there on the boundless plain .
在一望无际的原野上散布着一座座井架。
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Research on Derrick Damage Identification Based on Mode Parameter and Intelligent Analysis
基于模态参数与智能分析的井架结构损伤实验研究
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A simple method for analyzing structure of derrick with initial deformation
有初始变形井架结构分析的简便方法
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Safety Bearing Capacity Evaluation for Drilling Derrick Based on Vibration Parameters
基于振动参数的钻井井架安全承载力评定
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Development of Test System for Active Derrick Load Supporting Capacity and Operating Life
在用井架承载能力及使用寿命测试系统的研制
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Reliability analysis for derrick structure under mechanism failure mode
井架机构化失效的结构系统的可靠性分析
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Model Test and Analysis of Type P Derrick
P型井架模态试验与分析
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The main methods of safety evaluation of drilling derrick are also presented .
介绍了对钻机井架进行安全评定的主要方法。
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Experimental Study on Damage Identification of Oil Derrick Based on Wavelet Packet Analysis
基于小波包分析的石油井架结构损伤识别试验研究
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Nonlinear analysis of the mechanical behaviour of oil derrick steel structures
采油井架钢结构非线性力学行为分析
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Study on Damage Location of Oil Derrick Based on Wavelet and Neural Network
基于小波和神经网络的石油井架损伤定位研究
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Determination of the Minimum Safety of a Derrick Structure in Service
服役井架结构最低安全度的确定
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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
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The structure pattern , characteristics and use cases of the derrick were introduced .
介绍了AY系列钻塔的结构形式、产品特点及应用实例。
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Derrick is the key component , bearing the main load .
井架是修井机的关键部件，承受主要的载荷。
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Work and load condition of derrick is relative special and complex .
井架工作环境比较特殊、工况相对复杂。
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Discussion on processing method of derrick testing data
井架测试数据分析处理方法初探
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Load and loading reaction in reliability design of oil derrick
石油井架可靠性设计中的荷载与荷载效应
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Development of computer simulation system for derricks in usage
现役钻机井架仿真系统的研究和开发
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Safety bearing capacity evaluative method of derrick structures based on dynamic parameter
井架结构安全承载力动态参数评定方法
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The Mechanical Behavior Analysis and Load Capacity Research for Downhole Derricks
作业井架的力学行为分析与承载能力研究
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Wind - induced Response Analysis of Oil Rig Derrick Structure
石油钻机井架结构风振响应分析
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Selection And Base Design Of Automatic Tower Derrick Of High - Rise Building
高层建筑自升式塔式起重机的选用及基础设计
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Application of structure dynamics modification in derrick design
结构动力修改在车装钻机井架设计中的应用
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Method for calculating Stability of solid axis pressure bar used on derricks
井架实腹式轴心压杆稳定性计算新方法
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Evaluation of residual load capacity of working drilling derrick by ultimate state method
在用井架剩余承载能力极限状态评定方法
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Structure analysis of the derrick with the initial defect
考虑初始缺陷的塔型井架结构分析