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The optimum drilling technique in the northeast area of Sichuan

Han Laiju,Ma Guangjun,Zhao Jinhai

Strategic Study of CAE 2010, Volume 12, Issue 10, Pages 44-49

Abstract: complicated, which causes many complex cases and accidents like lost circulation and collapse when drillingROP was slow and drilling cycle was long.deepwell in south China, through introducing and developing new technology and new tools, like gas drillingand vertical drilling equipments, combined with existing techniques such as underbalanced drilling,compound drilling, optimum drilling technique system fit for complicated deepwell in northeast area of

Keywords： northeast area of Sichuan optimum drilling gas drilling vertical drilling MPD with lower-densitydrilling fluid bit optimization compound drilling

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Investigation on drilling-grinding of CFRP

Yanming QUAN, Wenwang ZHONG

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 1, Pages 60-63 doi: 10.1007/s11465-009-0008-y

Abstract: Conventional drills have a very short life in the drilling of this kind of composites and the qualitymechanism of the two kinds of diamond tools is not like the cutting effect of the conventional solid twist drilling

Keywords： composites drilling-grinding cemented/plated diamond tool life machined quality

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Calculation and research on deepwater drilling riser flexural equation and natural frequency

Jiang Wei

Strategic Study of CAE 2011, Volume 13, Issue 5, Pages 66-73

Abstract: justify;">Flexural equation was established in this paper, which was based on application of deepwater drillingTherefore, simple calculation method for natural frequency of drilling riser was achieved.Free-hinged beam was taken as constraint condition of flexural equation combined with drilling stringPurpose of research was to provide reasonable design and selection for deepwater drilling riser, andprovide a more efficient and applied method, which would show guiding significance for deepwater drilling

Keywords： deepwater drilling drilling riser flexural equation natural frequency shape function

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Optimum Design for Airliner Environmental Control System

Fang Lin,Wang Jun

Strategic Study of CAE 2006, Volume 8, Issue 1, Pages 77-80

Abstract: Generalized multiplier combined with simplex method is used to seek the optimum solution.

Keywords： airliner environmental control optimum design

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Development Path of Offshore Drilling Equipment in China

Liu Jian

Strategic Study of CAE 2020, Volume 22, Issue 6, Pages 40-48 doi: 10.15302/J-SSCAE-2020.06.006

Abstract:

China has made achievements in offshore drilling equipment, and it cannow develop the shallow-water drilling rigs independently.However, as far as deep-water drilling equipment is concerned, there still exists a big gap between ChinaTo accelerate the development of China’s offshore drilling equipment, this study first analyzesmachine, deep-water drilling machine, and new-type marine drilling machine; it then summarizes the development

Keywords： offshore drilling rig deep-water drilling rig development of equipment test sea test

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Effects of delamination in drilling glass/polyester composite

Mehdi GANJIANI, Majid SAFARABADI, Nabi MEHRI-KHANSARI, Hossein ORUJI

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 2, Pages 552-567 doi: 10.1007/s11709-021-0699-7

Abstract: Considering failures during machinery processes such as drilling, a precautionary analysis involvingeffect of mode delamination and corresponding interlaminar crack propagation was considered during the drilling

Keywords： delamination VCCT ARCAN specimen drilling mode II

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System Non-optimum Analysis Theory and Method

He Ping

Strategic Study of CAE 2003, Volume 5, Issue 7, Pages 40-46

Abstract:

This paper discusses non-optimum analysis theory of system and points out main problem of exploringThe key is short of the non-optimum analysis to the system.The article establishes symptom covey and empirical analysis based on non-optimum category of the system, and puts forward that system is degree measured along with non-optimum traced up to systematic self-organization

Keywords： the non-optimum category of system non-optimum symptom covey non-optimum magnanimity systematic self-organization

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Determining the optimum economic insulation thickness of double pipes buried in the soil for district

Fating LI, Pengfei JIE, Zhou FANG, Zhimei WEN

Frontiers in Energy 2021, Volume 15, Issue 1, Pages 170-185 doi: 10.1007/s11708-020-0680-5

Abstract: An optimization model to obtain the optimum insulation thickness (OIT) and minimum annual total cost

Keywords： double pipes optimization model optimum insulation thickness minimum annual total cost

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Estimation of optimum design of structural systems via machine learning

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 6, Pages 1441-1452 doi: 10.1007/s11709-021-0774-0

Abstract: Three different structural engineering designs were investigated to determine optimum design variablesestimation for structures is an effective, successful, and speedy tool to forecast and determine the real optimum

Keywords： optimization metaheuristic algorithms harmony search structural designs machine learning artificial neural networks

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Unified cycle model of a class of internal combustion engines and their optimum performance characteristics

Shiyan ZHENG

Frontiers in Energy 2011, Volume 5, Issue 4, Pages 367-375 doi: 10.1007/s11708-011-0170-x

Abstract: The optimum criteria of some important parameters such as the power output, efficiency and pressure ratio

Keywords： internal combustion engine irreversibility power output efficiency optimization

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Hole quality in longitudinal–torsional coupled ultrasonic vibration assisted drilling of carbon fiber

Guofeng MA, Renke KANG, Zhigang DONG, Sen YIN, Yan BAO, Dongming GUO

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 4, Pages 538-546 doi: 10.1007/s11465-020-0598-y

Abstract: The advanced longitudinal–torsional coupled ultrasonic vibration assisted drilling (LTC-UAD) method hasa potential application for drilling CFRP composites.At present, LTC-UAD is mainly adopted for drilling metal materials and rarely for CFRP.Therefore, this study analyzes the kinematic characteristics and the influence of feed rate on the drillingThus, LTC-UAD is an applicable process method for drilling components made with CFRP composites.

Keywords： longitudinal–torsional coupled ultrasonically drilling CFRP thrust force hole quality

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Permeability testing of drilling core sample from pavement

WANG Suda, TANG Zhengguang, NING Xiaojun, WU Peiguan, XING Pingyi

Frontiers of Structural and Civil Engineering 2008, Volume 2, Issue 4, Pages 391-394 doi: 10.1007/s11709-008-0045-3

Abstract: New equipment is used to measure the permeability coefficient of the pavement drilling core sample andTesting drilling core samples from a certain highway of Yunnan province has been proven to be feasible

Keywords： province material feasible permeability coefficient equipment

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Inspiring China’s oil drilling——60-year microcosm of China oil drilling

Sun Zhenchun,Wang Haige,Cui Longlian

Strategic Study of CAE 2010, Volume 12, Issue 5, Pages 91-96

Abstract: workload, footage and drilling team was shown.The tremendous progresses of China's drilling technology, including directional well drilling, horizontalwell drilling, underbalanced and gas drilling, deep well drilling, drilling equipment and well controlDrilling experience, scientific drilling, drilling optimization described the evolution developing processof China's drilling technology.

Keywords： China’s oil drilling developing process technology progress great achievement developing trend

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Wear mechanism of disc-brake block material for new type of drilling rig

WANG Xinhua, WANG Simin, ZHANG Siwei, WANG Deguo

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 1, Pages 10-16 doi: 10.1007/s11465-008-0009-2

Abstract: To improve friction and wear performance and service life of the disc-brake pair material of a drilling

Keywords： asbestos-free frictional Fracture cyclization friction disc-brake

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Biological chip technology to quickly batch select optimum cryopreservation procedure

YU Lina, LIU Jing, ZHOU Yixin, HUA Zezhao

Frontiers in Energy 2007, Volume 1, Issue 3, Pages 316-321 doi: 10.1007/s11708-007-0046-2

Abstract: In the practices of cryobiology, selection of an optimum freeze/thawing program and an idealistic cryoprotectiveof biochip technology was introduced to the field of cryopreservation, aiming at quickly finding an optimum

Keywords： idealistic cryoprotective concentration Prototype technology alternative