Se connecter

Bibliographies thématiques / Derricks / Articles de revues

Pour voir les autres types de publications sur ce sujet consultez le lien suivant : Derricks.

Articles de revues sur le sujet « Derricks »

Auteur : Grafiati

Publié le 4 juin 2021

Mis à jour le 29 juillet 2024

Créez une référence correcte selon les styles APA, MLA, Chicago, Harvard et plusieurs autres

Choisissez une source :

Consultez les 50 meilleurs articles de revues pour votre recherche sur le sujet « Derricks ».

À côté de chaque source dans la liste de références il y a un bouton « Ajouter à la bibliographie ». Cliquez sur ce bouton, et nous générerons automatiquement la référence bibliographique pour la source choisie selon votre style de citation préféré : APA, MLA, Harvard, Vancouver, Chicago, etc.

Vous pouvez aussi télécharger le texte intégral de la publication scolaire au format pdf et consulter son résumé en ligne lorsque ces informations sont inclues dans les métadonnées.

Parcourez les articles de revues sur diverses disciplines et organisez correctement votre bibliographie.

1

Zhang, Zhe, Jialin Tian, Chenghang Liu, and Changqing Xiong. "Study of fatigue characteristics of key welds of modular drilling derricks." CT&F - Ciencia, Tecnología y Futuro 13, no. 1 (2023): 75–85. http://dx.doi.org/10.29047/01225383.668.

Texte intégral

Résumé :

Driven by the gradual development of oil and natural gas resources, the global use of rigs and the number of wells rise steadily. Modular rigs play an important role in oil exploration because of their efficient transport, economy, technological advancement, and rig reliability. The derrick is a key part of the modular rig, and since many essential components in the derrick are welded, the fatigue life of the derrick weld is particularly relevant. In this paper, the modular rig is the object of the research, proposing the calculation formula of fatigue life of the key weld of the derrick. Usin

Styles APA, Harvard, Vancouver, ISO, etc.

2

Mens, Yann. "Bagarre pour les derricks." Alternatives Économiques N° 394, no. 10 (2019): 62–63. http://dx.doi.org/10.3917/ae.394.0062.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

3

Soloviov, V. V., O. V. Mykhailovska, and I. A. Yermakova. "CONDITIONS OF A SINGLE INTAKE DESCENDING OF INTERMEDIATE CASING STRINGS OF AN EXCESSIVE WEIGHT COMPARED TO A DERRICK LOAD CAPACITY." ACADEMIC JOURNAL Series: Industrial Machine Building, Civil Engineering 1, no. 50 (2018): 214–19. http://dx.doi.org/10.26906/znp.2018.50.1078.

Texte intégral

Résumé :

The way of the intermediate casing string descending is considered. It allows overcoming the limits of derrick load capacity through the weight transferring descending intermediate casing string on the cemented string that is based on the foundation. In particular, technology is developed where the weight of each additional string, as it builds-up, is equivalent to additional friction forces which arise in the enlarged area. Such a descent technology does not depend on the load capacity of the derrick load capacity, does not create loads on the basis of derricks as well as additional tensile l

Styles APA, Harvard, Vancouver, ISO, etc.

4

Xu, Xingping, Lei Wang, Guangdou Liu, and Xin Zhang. "Optimal design of dual derricks." International Journal of Modelling, Identification and Control 17, no. 1 (2012): 61. http://dx.doi.org/10.1504/ijmic.2012.048640.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

5

Tan, Zhengbo, Hao Chen, Fu Wan, Feilong Liao, Yuan Gao, and Can Cai. "Influence of Complex Load on the Strength and Reliability of Offshore Derrick by Using APDL and Python." Applied Sciences 12, no. 22 (2022): 11693. http://dx.doi.org/10.3390/app122211693.

Texte intégral

Résumé :

In an offshore operational environment, complex loads such as the hook load, stand load and wind load play a crucial role in the structural strength and reliability of the offshore derrick. Previous studies have mainly focused on the effect of a specific load on the strength of the derrick by using commercial software. Therefore, the influencing mechanism of each complex load on the strength and reliability of the offshore derrick is urgently necessary to explore. Not only is the strength numerical model of the JJ315/45-K typical derrick established and conducted via APDL (ANSYS Parametric Des

Styles APA, Harvard, Vancouver, ISO, etc.

6

Li, Chunbao, Hui Cao, Mengxin Han, Pengju Qin, and Xiaohui Liu. "Analytical Method for Geometric Nonlinear Problems Based on Offshore Derricks." Mathematics 9, no. 6 (2021): 610. http://dx.doi.org/10.3390/math9060610.

Texte intégral

Résumé :

The marine derrick sometimes operates under extreme weather conditions, especially wind; therefore, the buckling analysis of the components in the derrick is one of the critical contents of engineering safety research. This paper aimed to study the local stability of marine derrick and propose an analytical method for geometrically nonlinear problems. The rod in the derrick is simplified as a compression rod with simply supported ends, which is subjected to transverse uniform load. Considering the second-order effect, the differential equations were used to establish the deflection, rotation a

Styles APA, Harvard, Vancouver, ISO, etc.

7

Morin-Allory, Ronan. "Chine-Soudan, une amitié à l'ombre des derricks." Outre-Terre 20, no. 3 (2007): 227. http://dx.doi.org/10.3917/oute.020.0227.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

8

Iman, Miftahul. "The Steel Truss Tower (Derricks) Structure Evaluation In Buckling Analysis." JUTEKS : Jurnal Teknik Sipil 5, no. 2 (2020): 120. http://dx.doi.org/10.32511/juteks.v5i2.735.

Texte intégral

Résumé :

Tarakan was an oil-producing city had been known since 1896 that were explored in first time in authorized by Bataavishe Petroleum Maatchapij (BPM). The derrick was a petroleum drilling facility that were performed in steel truss structure. The derrick prototype had been modeled in 3D truss by utilizing SAP2000. The models had been classified into 2 models: perfect and imperfect models. The imperfections denoted by the percentage of elements loses (IM20, IM24), and IM16). Buckling analysis consisted in linear and nonlinear analysis had been evaluated. The 3D solid model (Abaqus) also performed

Styles APA, Harvard, Vancouver, ISO, etc.

9

Akimov, O. V., К. V. Kempf, A. I. Mikhailov, and R. R. Naboka. "Experience of using the dual derricks in Zarubezhneft Group of Companies." Neftyanoe khozyaystvo - Oil Industry, no. 3 (2023): 22–25. http://dx.doi.org/10.24887/0028-2448-2023-3-22-25.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

10

Farfsing, Kenneth C. "Black Gold in Paradise—Reclaiming Signal Hill." Southern California Quarterly 97, no. 3 (2015): 244–66. http://dx.doi.org/10.1525/scq.2015.97.3.244.

Texte intégral

Résumé :

In 1921 oil was struck in Signal Hill, a previously agricultural area. Speculation and poorly regulated drilling followed. Wells, sumps, and derricks surrounded houses. Fires, leaks, soil and air pollution, noise, and industrial accidents proliferated. To thwart annexation by Long Beach, Signal Hill incorporated as an independent city in 1924, but problems continued. The city formed the Signal Hill Redevelopment Agency in 1974. Redevelopment dramatically transformed Signal Hill. By 2011, residential neighborhoods and commercial space characterized the city. While wells continue to operate in c

Styles APA, Harvard, Vancouver, ISO, etc.

11

张, 超. "Stress Test Tooling Design for Derricks on Offshore Workover Rig and Module Drilling Rig." Journal of Oil and Gas Technology 43, no. 04 (2021): 42–49. http://dx.doi.org/10.12677/jogt.2021.434071.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

12

Robertson, David S. "Oil Derricks and Corinthian Columns: The Industrial Transformation of the Oklahoma State Capitol Grounds." Journal of Cultural Geography 16, no. 1 (1996): 17–44. http://dx.doi.org/10.1080/08873639609478345.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

13

Cho, Chung-Suk, Francis Boafo, Young-Ji Byon, and Hyunjoo Kim. "Impact analysis of the new OSHA cranes and derricks regulations on crane operation safety." KSCE Journal of Civil Engineering 21, no. 1 (2016): 54–66. http://dx.doi.org/10.1007/s12205-016-0468-7.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

14

Augspurger, Michael. "Fortune'sBusiness Gentlemen: Culture and Corporate Liberalism in the Early 1930s." Prospects 26 (October 2001): 423–47. http://dx.doi.org/10.1017/s0361233300000995.

Texte intégral

Résumé :

Fortuneportentously announced its aim in the first issue in February 1930: “Fortune'spurpose is to reflect Industrial Life in ink and paper and word and picture as the finest skyscraper reflects it in stone and steel and architecture.” The magazine's copious use of painting, literary writing, and artistic photography gave it a luxurious feel that few early reviewers failed to praise. The advertising firm Young and Rubicam, for instance, applauded the magazine's aestheticization of business: “A Toast to YouFortune… You've taken what are sometimes called ‘prosaic business’ and ‘sordid industry’

Styles APA, Harvard, Vancouver, ISO, etc.

15

Stanford-McIntyre, Sarah. "Desk and Derrick: The Women's Petroleum Industry Club That Envisioned Oil's Technocratic Future." Labor 19, no. 4 (2022): 6–26. http://dx.doi.org/10.1215/15476715-10032348.

Texte intégral

Résumé :

Abstract This article uncovers the hidden history of Desk and Derrick, a female-only petroleum industry employees’ club, to emphasize the importance of clerical work and support staff to oil industry development. In doing so, it demonstrates that despite the oil industry's mythology of individual inventors and lucky wildcatters, oil was remarkably similar to other large-scale scientific and engineering enterprises during the middle decades of the twentieth century. Throughout the 1950s and 1960s, oil's white-collar and administrative jobs expanded rapidly. And in this industry as in others, wo

Styles APA, Harvard, Vancouver, ISO, etc.

16

Louveau de la Guigneraye, Christine. "Louisiana Story, entre nature et cultures." Horizontes Antropológicos 7, no. 16 (2001): 157–72. http://dx.doi.org/10.1590/s0104-71832001000200009.

Texte intégral

Résumé :

Dans Louisiana Story, Robert Flaherty a choisi l'opulente nature louisianaise comme lieu de rencontre entre deux cultures: une culture industrielle anglophone et une culture rurale francophone. Ce film, qui est commandé et financé par la compagnie pétrolière Standard Oil devait à l'origine montrer les difficultés et les dangers de l'extraction pétrolière pour ses équipes tout en les mettant en scène dans une réalisation destinée au grand public. Le problème posé à Flaherty était que de telles manœuvres étaient souterraines, qu'elles échappaient à l'objectif de la caméra. Après avoir parcouru d

Styles APA, Harvard, Vancouver, ISO, etc.

17

Rassenfoss, Stephen. "Drilling Automation - Why the Raptor Rig Never Drilled a Well." Journal of Petroleum Technology 73, no. 12 (2021): 23–24. http://dx.doi.org/10.2118/1221-0023-jpt.

Texte intégral

Résumé :

Velociraptor is the name of extinct dinosaur from the Cretaceous Era and a drilling rig left behind by a company that died during last year’s COVID-19 event. Both creatures have a larger-than-life image. The dinosaur is famous as a terrifying presence in the Jurassic Park movies. The cinematic terror was modeled after a far larger ancestor of the Velociraptor, a dinosaur the size of a wolf that fed on small animals, according to an account in National Geographic. The Raptor rig, which was famous as Canada’s entry into the race to become the world’s first fully automated land rig, was created b

Styles APA, Harvard, Vancouver, ISO, etc.

18

Fu, Hu Dai, Wei Yang, and Shan Gang Wang. "Finite Element Analysis and Optimal Design for the Derrick of Workover Rig." Advanced Materials Research 631-632 (January 2013): 900–904. http://dx.doi.org/10.4028/www.scientific.net/amr.631-632.900.

Texte intégral

Résumé :

It proposed the finite element analysis to the derrick of workover rig in the paper. The stress distributing rule of derrick has been found, based on the finite element analysis of established derrick model. It analyzed the reasons for the effects of derrick thigh stress due to the derrick sustentation disposal format, the function of doorframe structure and the producing of dangerous section. The optimal derrick structure has been made up after calculating the derrick working stress, stress state and displacement measure.

Styles APA, Harvard, Vancouver, ISO, etc.

19

Wang, Chong, Zhi Jing Xu, Xiang Li, and Ge Liu. "Dynamic Response Analysis of Ocean Drilling Derrick under the Dynamic Load." Advanced Materials Research 977 (June 2014): 387–90. http://dx.doi.org/10.4028/www.scientific.net/amr.977.387.

Texte intégral

Résumé :

The derrick of a drilling ship is a kind of dynamic ocean derrick which is often applied to drilling operations for ocean engineering. Comparing with land rig derrick, the operating environment of drilling derrick is more complicated with not only the regular functions of static force but also the dynamic loads induced by wind, wave and current. Therefore, this paper takes a drilling derrick as example to make clear of the dynamic characteristics of the drilling derrick under the action of dynamic loads from outside environment with the finite element software ANSYS as tool to accomplish the m

Styles APA, Harvard, Vancouver, ISO, etc.

20

Zhu, Lin, and Yi Geng. "Reliability Analysis of Double Derrick Based on Stress Analysis." Key Engineering Materials 667 (October 2015): 548–54. http://dx.doi.org/10.4028/www.scientific.net/kem.667.548.

Texte intégral

Résumé :

The double derrick as an important part of the drilling rig hoisting system in deep sea oil and gas development, its working environment is much more complex than land rigs working environment. Therefore, in order to ensure the quality of drilling, it is very important to analyze the reliability of the deep double derrick structure and its dynamic load characteristic. Based on the ANSYS software to establish finite element model of double derrick, through the static analyzing to the derrick, get the stress distribution of the derrick structure in static action and the derrick stress deformatio

Styles APA, Harvard, Vancouver, ISO, etc.

21

Wang, Jun Pu, Fu Wan, Jiong Liu, Hong Xiang Sun, and Hui Zhang. "Derrick Stress Monitoring System Based on Fiber Bragg Grating Sensor Technology." Applied Mechanics and Materials 226-228 (November 2012): 2124–27. http://dx.doi.org/10.4028/www.scientific.net/amm.226-228.2124.

Texte intégral

Résumé :

The importance and urgency for security condition monitoring of the in-service derrick is more and more people paying attention. Based on the FBG sensing technology developed a derrick stress monitoring system. The derrick stress monitoring system, composed by the derrick, a certain number of series of FBG sensors, sensor cables, signal demodulation devices, a portable computer that including a central processing and control platform. Carrying out study in the the ZJ70 model derrick. The experimental results show that the set of strain measurement system has good linear characteristics, repeat

Styles APA, Harvard, Vancouver, ISO, etc.

22

Wang, Gui Bing. "Replacement Construction Technology Analysis of Half-Through Reinforced Pipe Concrete Bridge Derrick." Advanced Materials Research 1065-1069 (December 2014): 949–55. http://dx.doi.org/10.4028/www.scientific.net/amr.1065-1069.949.

Texte intégral

Résumé :

This article relies projects, from derrick to replace the principle and derrick replacement order and step and important aspects of the construction derrick and the derrick to replace anti-corrosion treatment in half-through arch bridge construction derrick temporary replacement were discussed. Expect to be able to provide reference for similar projects draw on the research of this projects.

Styles APA, Harvard, Vancouver, ISO, etc.

23

Zhang, Yu Lian, and Hai Zhang. "Optimum Design Study of a Hydraulic Pressure Derrick Based on Stability." Advanced Materials Research 189-193 (February 2011): 1982–85. http://dx.doi.org/10.4028/www.scientific.net/amr.189-193.1982.

Texte intégral

Résumé :

The bearing load is very large when the hydraulic pressure derrick suspends cargo. The hydraulic pressure derrick is a very important component which transfers cargo load to hull. The method of optimization theory based on dual method was transplanted to optimize the hydraulic pressure derrick structure and the optimizing model of the hydraulic pressure derrick was established. The hydraulic pressure derrick structure was optimized under four load cases. The numerical results show that the structure strength and stability of hydraulic pressure derrick are fit.

Styles APA, Harvard, Vancouver, ISO, etc.

24

Yao, Zhishu, Mingkai Liu, Xiaojian Wang, Bin Tang, and Weipei Xue. "Deflection Mechanism and Treatment Technology of Permanent Derrick of Freeze Sinking on Deep Alluvium." Advances in Civil Engineering 2019 (February 3, 2019): 1–10. http://dx.doi.org/10.1155/2019/1362628.

Texte intégral

Résumé :

Aiming at the problems of deflection and operation safety of permanent derrick of freeze sinking shafts, the mechanism analysis of uneven settling of the derrick foundations in frost-thawed soil was conducted. In addition, research on ground stabilization and derrick deviation rectification technologies was also studied in this paper based on the engineering practice of derrick of auxiliary shaft in the Dingji Coal Mine. Firstly, since the soil texture and artificial freeze temperature field are uneven, the bearing capacity and compression modulus of soil mass decrease after freeze thawing, re

Styles APA, Harvard, Vancouver, ISO, etc.

25

Yi, Xian Zhong, Sheng Zong Jiang, Yuan Qiang Ji, Ding Feng, and De Li Gao. "Strength Analysis and Calculation of JJ225/42-KC Type Oil Rig Derrick." Applied Mechanics and Materials 190-191 (July 2012): 551–54. http://dx.doi.org/10.4028/www.scientific.net/amm.190-191.551.

Texte intégral

Résumé :

Abstract. Oil rig derrick is a large and complex metal frame with lots of bars and complex force. Moreover, the use of working condition is complex and harsh, so it is quite necessary to analyze strength and calculate oil rig derrick. In this paper, with the basic structure and force characteristic of JJ225/42-KC type oil derrick, the ANSYS finite element software is used to establish JJ225/42-KC type oil derrick structure finite element model. The strength and stability analysis of the maximum hook load working condition, the working wind load working condition and the maximum wind load worki

Styles APA, Harvard, Vancouver, ISO, etc.

26

Yan, Tie, and Chun Jie Han. "Research on the Vibration of Drilling Derrick." Advanced Materials Research 139-141 (October 2010): 2368–71. http://dx.doi.org/10.4028/www.scientific.net/amr.139-141.2368.

Texte intégral

Résumé :

Derrick is the basic equipment during drilling, fatigue and failure are the problems that effect drilling efficiency, the strong vibration of derrick is the main reason that caused derrick failure. The various kinds of vibration of drilling derrick are analyzed in this paper. The model of derrick JJ60/38-W is set up, the phenomena of vibration of derrick are studied, and the vibration state behaves many dynamic situations under the bad condition, including axial, lateral, torsional vibration. These vibrations are studied; the rule of various kinds of vibration is obtained. The modal vibration

Styles APA, Harvard, Vancouver, ISO, etc.

27

Liu, Zhi, Ke Yao, Di Wu, Dong Li, Jiu Yan Fu, and Jin Xia Wu. "The Finite Element Analysis of Static Strength of Workover Derrick by Truck." Advanced Materials Research 503-504 (April 2012): 918–22. http://dx.doi.org/10.4028/www.scientific.net/amr.503-504.918.

Texte intégral

Résumé :

Conventionally, the influence of guy wire and wind load on derrick was often ignored in the static strength analysis of derrick of truck-mounted workover rig, it does not accord with the actual working conditions. This paper made the finite element analysis for one derrick of Truck-mounted workover rig through ABAQUS software. The author derive the maximum static hock load which derrick can bear, and reasonably shorten projective radius of guy wire, under different static hock load and wind load, determining the weakest position of derrick. Truck-mounted workover rigs are widely used in the fi

Styles APA, Harvard, Vancouver, ISO, etc.

28

Song, Li Yang, Ji Wei Wang, Ping Chuan Dong, and Tian Lin Zhuang. "Mechanical Characteristics Analysis and Design Optimization of the Derrick." Advanced Materials Research 945-949 (June 2014): 174–80. http://dx.doi.org/10.4028/www.scientific.net/amr.945-949.174.

Texte intégral

Résumé :

In this paper, numerical simulation technology was applied to comprehensively analyze and study the mechanical properties of the derrick. The three-dimensional finite elements analysis model of the derrick structure was established, which provided the physical model of the numerical simulation and the optimization of the three-dimensional derrick. The finite element simulation method was applied to analyze and optimize the mechanical and deformation of the three-dimensional derrick structure, so that the theoretical method to study and design the three-dimensional derrick using finite element

Styles APA, Harvard, Vancouver, ISO, etc.

29

Li, Fang Po, Zhi Wei Zhang, and Bin Zhang. "Application Feasibility Study of High Strength Pipeline Steel to Rig Derrick and Substructure." Materials Science Forum 993 (May 2020): 616–21. http://dx.doi.org/10.4028/www.scientific.net/msf.993.616.

Texte intégral

Résumé :

Derrick and substructure is one of rig’s core equipment components, and it is also the most important weight component of rig. The working environment of derrick and substructure is very serious, whose material should has high strength, excellent plasticity, toughness and weldability property. In this paper, the chemical composition, micro-structure, tensile property, impact property, hardness and weldability of high strength pipeline steel with strength grades of X70 (485MPa)~ X100(690MPa) were systematically analyzed. The analysis and study of the service environment of rig derrick and subst

Styles APA, Harvard, Vancouver, ISO, etc.

30

Liang, L. H., Zeng Liang Gao, S. N. Wang, Q. Y. Wu, J. X. Zhu, and M. B. Wu. "Structural Strength and Buckling Analysis for a Steel Derrick after its Members Removed Partly." Key Engineering Materials 353-358 (September 2007): 424–28. http://dx.doi.org/10.4028/www.scientific.net/kem.353-358.424.

Texte intégral

Résumé :

The static strength and stability of a derrick structure (78.5m high) after its members removed partly are researched. The derrick is modeled by three-dimensional spatial beam elements based on ANSYS. By the static analysis, the strength of the derrick after its member removing partly is larger than that of the original derrick structure since some loads disappear. From the buckling analysis, it can be found that the stability reduces drastically when removing some members.

Styles APA, Harvard, Vancouver, ISO, etc.

31

Gai, Yong Ge, and Zuo Long Zhang. "The Design of Self-Erection Derrick of Simple Offshore Workover Rig." Applied Mechanics and Materials 705 (December 2014): 117–21. http://dx.doi.org/10.4028/www.scientific.net/amm.705.117.

Texte intégral

Résumé :

Though the use of modular technology, a sub-vertical lifting offshore workover rig derrick for the marine small platform is designed, which can be installed and moved quickly. The overall derrick structure and most of the part design and selection are completed by Solidworks and Auto CAD. The static calculation for the derrick is done with the help of finite element analysis software ANSYS, and analyzed the results to ensure that the derrick designed could meet the strength requirements.

Styles APA, Harvard, Vancouver, ISO, etc.

32

Wang, Jiang Ping, and Ze Fu Bao. "The Stress Analysis of Drilling Derrick Structure Based on Finite Element Method." Applied Mechanics and Materials 251 (December 2012): 84–90. http://dx.doi.org/10.4028/www.scientific.net/amm.251.84.

Texte intégral

Résumé :

Oil-drilling derrick is the most important integrant of the equipments in oil industry and is also a giant load bearing structure. In this paper, the 3D geometric model of the derrick is created by commercial finite element analysis (FEA) software ANSYS, and the static stresses under several working conditions are analyzed. The displacement and stress distribution of the derrick acquired can lay the theoretical basis for the optimization design of structural and material choices of the derrick further.

Styles APA, Harvard, Vancouver, ISO, etc.

33

Zhu, Lin, and Yan Chen. "A Review and Prospect for Dynamic Load and Stability Check Method for Dual Derrick." Applied Mechanics and Materials 372 (August 2013): 309–13. http://dx.doi.org/10.4028/www.scientific.net/amm.372.309.

Texte intégral

Résumé :

The article introduces the dynamic characteristics researches for dual derrick, they are wind load response analysis, the vibration characteristics analysis, seismic response analysis and wave load analysis. On the stability of the dual derrick check, the article recommends the nonlinear finite element method and the treatment of boundary conditions. Although these studies have a certain guiding significance for the practical engineering, but there is a relative lack of the study for the dual derrick on deep-water drilling rigs. To this end, the article points out research contents for the fur

Styles APA, Harvard, Vancouver, ISO, etc.

34

Huang, Tao, Jun Pu Wang, Fu Wan, Shao Wei Chen, and Yao Dong. "Stress Real-Time Monitoring of Marine Derrick Based on Environmental Loads." Applied Mechanics and Materials 226-228 (November 2012): 2128–31. http://dx.doi.org/10.4028/www.scientific.net/amm.226-228.2128.

Texte intégral

Résumé :

Aiming at the design feature and the operating of K-type derrick, an effective method used to stress real-time monitoring consider environmental loading is proposed. The challenge to the South China Sea offshore drilling derrick is a illustration. The derrick corrosion and wall thinning conditions is be considered, then using finite element software analyze derrick structure of static analysis, get the higher force about main member of derrick. Based on finite element analysis, select the key parts layout of measuring points, then monitor derrick stress under nine storms environmental loading

Styles APA, Harvard, Vancouver, ISO, etc.

35

Zhao, Guang Hui, Zheng Liang, Fa Guang Jiang, Jia Lin Tian, and Liang Zhang. "Out-Plane Stability of Derrick of Inclined Drilling Rig." Advanced Materials Research 199-200 (February 2011): 518–21. http://dx.doi.org/10.4028/www.scientific.net/amr.199-200.518.

Texte intégral

Résumé :

K-type derrick of inclined drilling rig that is top driving is usually loaded by axial compression, lateral force and concentrated torque simultaneously, and is more prone to out-plane instability due to its poor torsional rigidity. Here the upper segment of derrick was simplified as cantilever beam-column with laced-bar lattice structure. Stability model was established by energy method, and Ritz method was employed to obtain deformation curves for lateral deflection and torsion. Effects of dip angle of derrick and position of top drive on deformation were analyzed. At last the out-plane inst

Styles APA, Harvard, Vancouver, ISO, etc.

36

Li, Dong Wei, Ju Hong Fan, and Ren He Wang. "Numerical Simulation of Interaction between Coal Derrick and Foundation in Freeze - Thaw Process." Advanced Materials Research 295-297 (July 2011): 1146–49. http://dx.doi.org/10.4028/www.scientific.net/amr.295-297.1146.

Texte intégral

Résumé :

With the increase of the depth of frozen sinking, mine permanent derrick was located into the the frozen wall scope. The internal force distribution law of the shaft – tower foundation was obtained by the field measurement of shaft – tower foundation pressures, reinforced internal force, concrete strain, foundation deformation, and other mechanical quantities. The numerical Simulation of interaction between coal derrick and foundation in freeze - thaw process showed that: Field measurement and numerical simulation of the same laws and values were in good agreement. It has very important theore

Styles APA, Harvard, Vancouver, ISO, etc.

37

Li, Dong Wei, Ju Hong Fan, and Ren He Wang. "Triaxial Low-Temperature Creep Tests of Artificially Frozen Soil." Applied Mechanics and Materials 71-78 (July 2011): 3775–78. http://dx.doi.org/10.4028/www.scientific.net/amm.71-78.3775.

Texte intégral

Résumé :

With the increasing in freezing shaft sinking depth of the mine，Mine permanent derrick was located into the frozen wall. The internal force distribution of the shaft-tower foundation was obtained by field measurement shaft-tower foundation basal pressure, foundation reinforced strain and the strain of concrete and foundation deformation of mechanical quantity. The numerical simulation of the interaction between coal derrick and foundation in freezing and thawing process shows that: the field measurement and numerical simulation laws were consistent and the values were in good agreement. It has

Styles APA, Harvard, Vancouver, ISO, etc.

38

Zhi, Liu, Di Wu, and Bao Shan Sun. "The Finite Element Analysis of Derrick of Coal-Bed Methane Rigs." Applied Mechanics and Materials 215-216 (November 2012): 758–61. http://dx.doi.org/10.4028/www.scientific.net/amm.215-216.758.

Texte intégral

Résumé :

Using the finite element analysis software ANSYS established derrick model of CBM drilling rig car and calculated its static strength and model analysis. The maximum Mises stress and the weakest position of derrick was determined and given its four bands of natural frequencies and corresponding vibration model. The conclusion can be gotten from calculation results that the structure of derrick meet the requirements of design.

Styles APA, Harvard, Vancouver, ISO, etc.

39

Xu, Xiao Bing, Xing Han, and Li Yu. "Displacement Measurement of Derrick Model Base on the Non-Contact Type Video Measurement Technology." Applied Mechanics and Materials 318 (May 2013): 125–29. http://dx.doi.org/10.4028/www.scientific.net/amm.318.125.

Texte intégral

Résumé :

In this paper, a non-contact type video measurement technology is introduced, and the displacements of derrick model are measured by this technology. Then comparative analysis between this measurement results and the finite element analysis results showed that the precision of measurement displacement of derrick model used this technology is good. Therefore, this technology is an effective, convenient, safe, low cost, low labor and a new method of derrick displacement measurement.

Styles APA, Harvard, Vancouver, ISO, etc.

40

Rowell, Charles H. "Derrick Adams." Callaloo 38, no. 4 (2015): 797–800. http://dx.doi.org/10.1353/cal.2015.0116.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

41

Dexter, D. "Derrick Dexter." BMJ 346, may22 21 (2013): f2308. http://dx.doi.org/10.1136/bmj.f2308.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

42

Thomas, Joan, and Eddy Holt. "Derrick Foskett." BMJ 336, no. 7654 (2008): 1197.4–1197. http://dx.doi.org/10.1136/bmj.39581.596921.be.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

43

Grey, Denham. "DERRICK GREY." South African Forestry Journal 166, no. 1 (1993): 64. http://dx.doi.org/10.1080/00382167.1993.9629403.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

44

Wang, Kai Song, and Guo Qing Liu. "Derrick Spectrum Analysis Based on ANSYS." Advanced Materials Research 791-793 (September 2013): 1529–32. http://dx.doi.org/10.4028/www.scientific.net/amr.791-793.1529.

Texte intégral

Résumé :

The existing mine derrick design only includes the guiding principles and the empirical formula, but has no the mechanism of structural dynamics characteristics under an earthquake conditions. Then the modal analysis and spectral response analysis of the derrick have been finished for gaining the derrick natural frequency, mode shapes, and time response curve based on ANSYS in the thesis. The analysis results provides important basis for the anti-seismic design, optimization design and avoiding resonance.

Styles APA, Harvard, Vancouver, ISO, etc.

45

Sun, Jin Peng, and Jin Feng Jiao. "A Steel Headframe Structure before and after the Comparison and Analysis of the Performance of Process Modification." Advanced Materials Research 671-674 (March 2013): 606–10. http://dx.doi.org/10.4028/www.scientific.net/amr.671-674.606.

Texte intégral

Résumé :

Because the coal mine derrick technology needs, to be in from the original winch system of backward 10m based on a new set of new ground winch system, resulting in the original derrick structure stress state change. By using SAP2000 finite element software, the establishment of three-dimensional finite element model, the dynamic characteristics and technological transformation and bar stress were analyzed, for the coal mine derrick technological transformation to provide certain reference.

Styles APA, Harvard, Vancouver, ISO, etc.

46

Wang, Jinlong, Junliang Zhang, and Xiaqi Zhang. "Finite element analysis and optimization of workover derrick based on ANSYS Workbench." Journal of Physics: Conference Series 2206, no. 1 (2022): 012009. http://dx.doi.org/10.1088/1742-6596/2206/1/012009.

Texte intégral

Résumé :

Abstract Based on the actual workover operating conditions, this paper designs a workover operating machine for lifting and running tubing at the wellhead, and use SolidWorks to draw a three-dimensional model of the workover rig, through ANSYS Workbench, the main component of the workover rig is analyzed for the force under load. According to the results of static analysis and modal analysis, it is concluded that the main stress parts of the workover derrick are on the two uprights where the robot arm is installed, and the upper part of the workover derrick is most prone to resonance, after mu

Styles APA, Harvard, Vancouver, ISO, etc.

47

Zou, Long Qing, Gui Juan Chen, Xing Jiang Gao, and Chu Hao Jiang. "Damage Identification Method Based on LMD Sample Entropy and SVM for Oil Derrick." Applied Mechanics and Materials 701-702 (December 2014): 620–23. http://dx.doi.org/10.4028/www.scientific.net/amm.701-702.620.

Texte intégral

Résumé :

To identify damaged position of oil derrick, this paper presents a damage identification method for oil derrick using LMD and sample entropy to extract eigenvector and SVM to identify classes. Hammering vibration response signal of damaged derrick is decomposed into several PF components. The sample entropy of PF components is calculated and used as eigenvectors. SVM classifier is constructed based on eigenvectors of different damage location, and this method can identify damage position accurately. This method is verified by comparison with recognition result of LMD and information entropy.

Styles APA, Harvard, Vancouver, ISO, etc.

48

Yan, Ming Yin, Cheng Yang Li, and Jia Qi Jin. "The Finite Element Analysis of Derrick Translation System in Vehicular Pressure Balance Workover Rig." Applied Mechanics and Materials 496-500 (January 2014): 836–40. http://dx.doi.org/10.4028/www.scientific.net/amm.496-500.836.

Texte intégral

Résumé :

Nowadays the workover rig is more often used in outdoor work, and the field environment is complicated and changeable.Therefore, it becomes extremely important to conduct a detailed analysis of stress of the workover rig derrick translational system.This paper takes Liaohe Oilfield new vehicular pressure balance workover rig derrick translation system as an example, a finite element analysis model is established to analyze the stress conditions of the derrick truck system.The result completely conforms to the actual requirements, thus verifying the rationality of the design and providing the b

Styles APA, Harvard, Vancouver, ISO, etc.

49

Brillhart, John. "Derrick Henry Lehmer." Acta Arithmetica 62, no. 3 (1992): 207–20. http://dx.doi.org/10.4064/aa-62-3-207-220.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

50

Leigh, W. "Derrick Henry Randall." BMJ 350, apr13 6 (2015): h1958. http://dx.doi.org/10.1136/bmj.h1958.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

Nous offrons des réductions sur tous les plans premium pour les auteurs dont les œuvres sont incluses dans des sélections littéraires thématiques. Contactez-nous pour obtenir un code promo unique!