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Research progress on hydrate plugging in multiphase mixed rich-liquid transportation pipelines

Shuyu SONG, Zhiming LIU, Li ZHOU, Liyan SHANG, Yaxin WANG

Frontiers in Energy 2022, Volume 16, Issue 5,   Pages 774-792 doi: 10.1007/s11708-020-0688-x

Abstract: The plugging mechanism of multiphase mixed rich-liquid transportation in submarine pipeline is a prerequisiteprogress and mechanism in the liquid-rich system.of hydrate plugging.Moreover, it summarized the mechanism and the use of anti-agglomerates in different systems.mechanism models at inclined and elbow pipes should be established.

Keywords： hydrate     rich-liquid phase     plugging mechanism     coalescence     deposition     anti-agglomerate    

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Mechanism and control factors of hydrate plugging in multiphase liquid-rich pipeline flow systems: a

Shuwei ZHANG, Liyan SHANG, Zhen PAN, Li ZHOU, You GUO

Frontiers in Energy 2022, Volume 16, Issue 5,   Pages 747-773 doi: 10.1007/s11708-022-0830-z

Abstract: Therefore, hydrate plugging is a major concern for the hydrate slurry pipeline transportation technologyReasons of diversity of hydrate plugging mechanism in oil-based system ought to be studied in-depth by

Keywords： hydrate     flow rate     water content     mechanism of pipeline blockage     rich liquid phase system    

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Research and assessment of high efficiency temporary plugging agent used for refracturing

Yan Zhitao

Strategic Study of CAE 2012, Volume 14, Issue 4,   Pages 20-25

Abstract: Temporary plugging agent in refracturing plays a very important role; it is the key to the success ofIn this article, a new kind of temporary plugging agent has been developed, we have done lots of laboratorytesting researches about its performance and temporary plugging effect.It is can be seen from the experiment and finite element analysis that the new temporary plugging agentTemporary plugging agent can provide protection for wells, and it has a good prospect.

Keywords： refracturing     temporary plugging agent     fracture divert     non-linear finite element analysis     gas protection    

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Effects of inner sleeves on the inner frictional resistance of open-ended piles driven into sand

Janaka J. KUMARA,Yoshiaki KIKUCHI,Takashi KURASHINA,Takahiro YAJIMA

Frontiers of Structural and Civil Engineering 2016, Volume 10, Issue 4,   Pages 499-505 doi: 10.1007/s11709-016-0335-0

Abstract: Inner frictional resistance depends largely on the degree of soil plugging, which is influenced by manyThe results of incremental filling ratio and plug length ratio also indicate that the degree of soil plugging

Keywords： bearing capacity     inner frictional resistance     inner sleeve     open-ended piles     soil plugging    

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Theory and method of mechanism system design

Huijun ZOU, Qinghua LIANG, Qing ZHANG

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 4,   Pages 399-411 doi: 10.1007/s11465-010-0116-8

Abstract: Conceptual design is the most critical and creative phase of design. Recently, increasing attention has been directed to supporting conceptual-level computer aided creative design and its theories and methodologies. Specifically, for conceptual design of mechanical products, this paper presents a novel function solving model for mechanical product design and highlights the importance of systematic synthesis to achieve creative design. Then it builds a framework as a function-effect-process-action- mechanisms (FEPAM) mapping process, which enables creative design on the basis of conceiving different action schemes. After that, several key points are elaborated including 1) representing and decomposition methods of functions and motion behaviors; 2) action scheme representing method based on network plan techniques; and 3) variation and creation methods based on action scheme transformations.

Keywords： mechanism system creative design     process model     function solving model     process action procedure     mechanismsknowledge base     principle of mechanism system composition    

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Formation mechanism and modeling of surface waviness in incremental sheet forming

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 2, doi: 10.1007/s11465-022-0679-1

Abstract: surface quality has always been a challenge for incremental sheet forming (ISF), whereas the generation mechanismIn this paper, the formation mechanism and the prediction of waviness are both investigated through experimentsengineering application, a theoretical model for waviness height is proposed based on the generation mechanismThis work is favorable for the perfection of formation mechanism and control of surface quality in ISF

Keywords： surface waviness     incremental sheet forming     numerical simulation     formation mechanism     deformation history    

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Autogenous healing mechanism of cement-based materials

Frontiers of Structural and Civil Engineering   Pages 948-963 doi: 10.1007/s11709-023-0960-3

Abstract: However, systematic research on the autogenous healing mechanism of cement-based materials is lackingScanning electron microscopy and optical microscopy were used to examine the autogenous healing mechanism

Keywords： autogenous healing     cement-based materials     healing mechanism     aggregation effect    

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Optimal design of a linkage–cam mechanism-based redundantly actuated parallel manipulator

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 3,   Pages 451-467 doi: 10.1007/s11465-021-0634-6

Abstract: A redundantly actuated parallel manipulator (RAPM) with mixed translational and rotational degrees of freedom (DOFs) is challenged for its dimensionally homogeneous Jacobian modeling and optimal design of architecture. In this paper, a means to achieve redundant actuation by adding kinematic constraints is introduced, which reduces the DOFs of the end-effector (EE). A generic dimensionally homogeneous Jacobian is developed for this type of RAPMs, which maps the generalized velocities of three points on the EE to the joint velocities. A new optimization algorithm derived from this dimensionally homogeneous Jacobian is proposed for the optimal design of this type of RAPMs. As an example, this paper presents a spatial RAPM involving linkages and cam mechanisms. This RAPM has 4 DOFs and 6 translational actuations. The linkage lengths and the position of the universal joints of the RAPM are optimized based on the dimensionally homogeneous Jacobian.

Keywords： redundant actuation     parallel manipulator     linkage–cam mechanism     Jacobian     optimal design    

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Cryogenic minimum quantity lubrication machining: from mechanism to application

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 4,   Pages 649-697 doi: 10.1007/s11465-021-0654-2

Abstract: Second, the cooling–lubrication mechanism of CMQL and its influence mechanism on material hardness, cuttingThe effects of CMQL are systematically analyzed based on its mechanism and application form.

Keywords： cryogenic minimum quantity lubrication (CMQL)     cryogenic medium     processing mode     device application     mechanism    

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Review on mechanism and process of surface polishing using lasers

Arun KRISHNAN, Fengzhou FANG

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 3,   Pages 299-319 doi: 10.1007/s11465-019-0535-0

Abstract: This article gives a detailed overview of the laser polishing mechanism by explaining various process

Keywords： laser polishing     surface roughness     process parameters     mechanism    

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Creation and integration mechanism of instrumentation flexible developing system

Xiaoli XU, Qiushuang LIU

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 2,   Pages 235-240 doi: 10.1007/s11465-011-0122-5

Abstract: flexible developing system (IFDS), this paper discusses the creation and open flexible integration mechanismBased on the operation mechanism of the modern instrumentation developing system and the research and

Keywords： modern instrumentation developing     flexible interconnection     flexible integration mechanism     rapid integration    

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Mechanism and characterization of microplastic aging process: A review

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 8, doi: 10.1007/s11783-023-1700-6

Abstract:

● Methods for estimating the aging of environmental micro-plastics were highlighted.

Keywords： Microplastics     Aging     Degradation     Characterization     Mechanism    

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Design of a novel side-mounted leg mechanism with high flexibility for a multi-mission quadruped earth

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 2, doi: 10.1007/s11465-022-0740-0

Abstract: At present, few methods for these robots’ leg design utilize a side-mounted spatial parallel mechanismThus, this paper presents a complete design process of a novel 5-degree-of-freedom (5-DOF) hybrid leg mechanismFirst, a general approach is proposed for constructing the novel leg mechanism.With regard to the synthesis method of the parallel mechanism, a family of concise hybrid leg mechanismsFurthermore, the virtual quadruped rover equipped with this innovative leg mechanism is built.

Keywords： design synthesis     parallel mechanism     hybrid leg mechanism     screw theory     quadruped robot    

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The linkage mechanism between urban intelligence and low carbon innovation

Ming LIN

Frontiers of Engineering Management 2019, Volume 6, Issue 4,   Pages 584-586 doi: 10.1007/s42524-019-0076-6

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Design and analysis of the gripper mechanism based on generalized parallel mechanisms with configurable

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 4,   Pages 765-781 doi: 10.1007/s11465-021-0655-1

Abstract: mechanisms with a configurable moving platform have become popular in the research field of parallel mechanismThis type of gripper mechanism can be applied to grasp large or heavy objects in different environmentsA sufficient rule based on Lie group theory is proposed to synthesize the mechanism.A kinematic analysis of the example mechanism is presented.The workspace shows that the mechanism possesses high rotational capability.

Keywords： generalized parallel mechanism     configurable moving platform     gripper mechanism     type synthesis     kinematic    

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Title Author Date Type Operation

Research progress on hydrate plugging in multiphase mixed rich-liquid transportation pipelines

Shuyu SONG, Zhiming LIU, Li ZHOU, Liyan SHANG, Yaxin WANG

Journal Article

Mechanism and control factors of hydrate plugging in multiphase liquid-rich pipeline flow systems: a

Shuwei ZHANG, Liyan SHANG, Zhen PAN, Li ZHOU, You GUO

Journal Article

Research and assessment of high efficiency temporary plugging agent used for refracturing

Yan Zhitao

Journal Article

Effects of inner sleeves on the inner frictional resistance of open-ended piles driven into sand

Janaka J. KUMARA,Yoshiaki KIKUCHI,Takashi KURASHINA,Takahiro YAJIMA

Journal Article

Theory and method of mechanism system design

Huijun ZOU, Qinghua LIANG, Qing ZHANG

Journal Article

Formation mechanism and modeling of surface waviness in incremental sheet forming

Journal Article

Autogenous healing mechanism of cement-based materials

Journal Article

Optimal design of a linkage–cam mechanism-based redundantly actuated parallel manipulator

Journal Article

Cryogenic minimum quantity lubrication machining: from mechanism to application

Journal Article

Review on mechanism and process of surface polishing using lasers

Arun KRISHNAN, Fengzhou FANG

Journal Article

Creation and integration mechanism of instrumentation flexible developing system

Xiaoli XU, Qiushuang LIU

Journal Article

Mechanism and characterization of microplastic aging process: A review

Journal Article

Design of a novel side-mounted leg mechanism with high flexibility for a multi-mission quadruped earth

Journal Article

The linkage mechanism between urban intelligence and low carbon innovation

Ming LIN

Journal Article

Design and analysis of the gripper mechanism based on generalized parallel mechanisms with configurable

Journal Article