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Precision forging technology for aluminum alloy

Lei DENG, Xinyun WANG, Junsong JIN, Juchen XIA

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 1,   Pages 25-36 doi: 10.1007/s11465-018-0477-y

Abstract: temperature region, fast heat dissipation to dies, strong adhesion, high strain rate sensitivity, and large flowSeveral advanced precision forging technologies have been developed, including closed die forging, isothermaldie forging, local loading forging, metal flow forging with relief cavity, auxiliary force or vibrationloading, casting-forging hybrid forming, and stamping-forging hybrid forming.or combining precision forging technologies with other forming technologies.

Keywords： precision forging     aluminum alloy     closed die forging     flow control forging     hybrid-forming technology    

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The Near β Forging Overthrows the Conventional Forging Theory and Develops a New Tri-modal Microstructure

Zhou Yigang,Zeng Weidong,Yu Hanqing

Strategic Study of CAE 2001, Volume 3, Issue 5,   Pages 61-66

Abstract:

The near beta forging for titanium alloys proposed by the authors has overthrown the conventionalforging theory in the following two aspects: firstly, the material is heated and forged at 10〜15℃ belowbeta transus temperature and then water cooled; secondly, the heat treatment technology after forgingtransformation, defomation and strengthening and toughening theory, materials forged by the near beta forgingThe near beta forging is applicable not only to alpha-beta alloy, but also to alpha, near alpha and near

Keywords： titanium alloy     near beta forging     tri-modal microstructure    

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Impact of selection of DC base values and DC link control strategies on sequential AC-DC power-flow convergence

Shagufta KHAN,Suman BHOWMICK

Frontiers in Energy 2015, Volume 9, Issue 4,   Pages 399-412 doi: 10.1007/s11708-015-0374-6

Abstract: This paper demonstrates the convergence of the integrated AC-DC power-flow algorithm as affected by theselection of different base values for the DC quantities and adoption of different control strategiesFor power-flow modeling of integrated AC-DC systems, the base values of the various DC quantities canIn a similar manner, the control strategy adopted for the DC link also affects the power-flow convergenceThe sequential method is used to solve the DC variables in the Newton Raphson (NR) power flow model,

Keywords： AC-DC power-flow     Newton-Raphson method     high voltage direct current (HVDC) control strategy    

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Red soil for sediment capping to control the internal nutrient release under flow conditions

Lei Xia, Guo Liu, Chunmei Chen, Meiyan Wen, Yangyang Gao

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 6, doi: 10.1007/s11783-016-0886-2

Abstract: Red soil (RS) was firstly used as sediment capping material under flow conditions.In this study, red soil (RS) was employed to control the nutrients released from a black-odorous riversediment under flow conditions.Continuous-flow incubations showed that the reduction efficiencies of total N (TN), ammonium (NH -N),

Keywords： Sediment     Red soil capping     Flow conditions     Nitrogen     Phosphorus    

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Numerical study and control method of interaction of nucleation and boundary layer separation in condensingflow

Liansuo AN , Zhi WANG , Zhonghe HAN ,

Frontiers in Energy 2009, Volume 3, Issue 3,   Pages 254-261 doi: 10.1007/s11708-009-0047-4

Abstract: The spontaneous nucleation flow in turbine cascade was numerically studied.The model was implemented within a full Navier–Stokes viscous flow solution procedure and the processThe results show that the degree of flow separation in wet steam flow is greater than that in superheatedsteam flow due to condensation shock and that the loss cannot be neglected.transonic wet steam flow was presented.

Keywords： wet steam     two-phase flow     spontaneous condensation     numerical simulation     flow separation     profile loss    

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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: pipelines owing to the low-temperature and high-pressure environment, although requiring the cooperation of flowIn addition, it summarized the influences of fluid flow and water content on the risk of hydrate blockageIn general, flow rate was implicated in the regulation of blockage risk through its characteristic toaffect sedimentation tendencies and flow patterns.

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

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Water-level based discrete integrated dynamic control to regulate the flow for sewer-WWTP operation

Zhengsheng Lu, Moran Wang, Mingkai Zhang, Ji Li, Ying Xu, Hanchang Shi, Yanchen Liu, Xia Huang

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 3, doi: 10.1007/s11783-020-1222-4

Abstract: A model-free sewer-WWTP integrated control was proposed.The approach could improve the sewer operation against flow fluctuation.A discretized water level control model was developed to conduct the real-time control based on data-automationThe discretized water level control method can regulate dynamic wastewater pumping flow of pumps followingthe sensitive flow disturbances of the sewer system.

Keywords： Sewer system     Integrated control     Discrete control     Water level    

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Operation and control of flow manufacturing based on constraints management for high-mix/low-volume production

GUAN Zailin, PENG Yunfang, MA Li, ZHANG Chaoyong, LI Peigen

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 4,   Pages 454-461 doi: 10.1007/s11465-008-0083-5

Abstract: To adapt lean production into the latter, a new type of flow manufacturing is proposed based on flowThe application of different theories of constraints/drum-buffer-rope (TOC/DBR) control policies dependsThe overall architecture of the proposed mechanism of constraint management-based operation and controlpaths, and a TOC/DBR ‘path-specific’ mechanism with group scheduling is used for the control over eachflow path.

Keywords： appropriate     management technology     scheduling     technology     different    

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Substance flow analysis for an urban drainage system of a representative hypothetical city in China

Hua BAI, Siyu ZENG, Xin DONG, Jining CHEN

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 5,   Pages 746-755 doi: 10.1007/s11783-013-0551-y

Abstract: This paper discusses the use of substance flow analysis (SFA) as a tool to support quantified researchBased on the principle of mass balance, a static substance flow model is established to describe and

Keywords： substance flow analysis (SFA)     urban drainage system     representative hypothetical city (RH city)     waterpollution control    

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Enhanced cross-flow filtration with flat-sheet ceramic membranes by titanium-based coagulation for membranefouling control

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 8, doi: 10.1007/s11783-022-1531-x

Abstract:

• Ceramic membrane filtration showed high performance for surface water treatment.

Keywords： Ceramic membrane     Coagulation     Polytitanium chloride     Membrane fouling    

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Numerical study of internal flow field and flow passage improvement of an inlet particle separator

Florian PAOLI, Tong WANG

Frontiers in Energy 2011, Volume 5, Issue 4,   Pages 386-397 doi: 10.1007/s11708-011-0156-8

Abstract: By performing gas flow field numerical simulations for several inlet Reynolds numbers (from 2 × 10to 9 × 10 ) and byflow ratios (from 10% to 20%), the present study has proposed to improve the flowNo particle has been included in the gas flow for a -epsilon turbulence model.Then the flow passage improvement method has focused on the separation area.in this study has succeeded in designing a shape which enhances the flow behavior.

Keywords： streamlines     pressure losses     flow passage improvement     inlet particle separator (IPS)    

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Magnetically driven microrobotsmoving in a flow: a review Review Article

Jiamiao MIAO, Xiaopu WANG, Yan ZHOU, Min YE, Hongyu ZHAO, Ruoyu XU, Huihuan QIAN

Frontiers of Information Technology & Electronic Engineering 2023, Volume 24, Issue 11,   Pages 1520-1540 doi: 10.1631/FITEE.2300054

Abstract: Magnetically driven s hold great potential to perform specific tasks more locally and less invasively in the human body. To reach the lesion area in vivo, s should usually be navigated in ing blood, which is much more complex than static liquid. Therefore, it is more challenging to design a corresponding precise scheme. A considerable amount of work has been done regarding of magnetic s in a and the corresponding theories. In this paper, we review and summarize the state-of-the-art research progress concerning magnetic s in blood , including the establishment of systems, of motion, and methods. In addition, current challenges and limitations are discussed. We hope this work can shed light on the efficient of s in complex environments and accelerate the study of s for clinical use.

Keywords： Microrobot     Flow     Dynamics modeling     Control    

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The Following-observing Method for Substance Flow Analysis

Lu Zhongwu

Strategic Study of CAE 2006, Volume 8, Issue 1,   Pages 18-25

Abstract:

The fundamental argument set forth in the paper is that flow is the common feature of fluid flow andsubstance flow.(constant output of product), but also for unsteady substance flow (increasing or decreasing outputThe following-observing model of substance flow was explained by using iron flow diagram in the lifeof indexes of lead flow.

Keywords： methods of substance flow analysis     following-observing method for substance flow analysis     basic equationsfor substance flow analysis     degree of unsteadiness of substance flow    

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UPFC setting to avoid active power flow loop considering wind power uncertainty

Shenghu LI, Ting WANG

Frontiers in Energy 2023, Volume 17, Issue 1,   Pages 165-175 doi: 10.1007/s11708-020-0686-z

Abstract: The active power loop flow (APLF) may be caused by impropriate network configuration, impropriate parameterThe power flow controllers, e.g., the unified power flow controller (UPFC), may be the reason and thepaper, the critical existence condition of the APLF is newly integrated into the simultaneous power flowapproaching to the critical existing condition, the integrated power flow needs less iterations andBesides, with wind power fluctuation, the interval power flow (IPF) is introduced into the integrated

Keywords： active power loop flow (APLF)     unified power flow controller (UPFC)     wind power uncertainty     interval powerflow (IPF)    

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Title Author Date Type Operation

Precision forging technology for aluminum alloy

Lei DENG, Xinyun WANG, Junsong JIN, Juchen XIA

Journal Article

The Near β Forging Overthrows the Conventional Forging Theory and Develops a New Tri-modal Microstructure

Zhou Yigang,Zeng Weidong,Yu Hanqing

Journal Article

Impact of selection of DC base values and DC link control strategies on sequential AC-DC power-flow convergence

Shagufta KHAN,Suman BHOWMICK

Journal Article

Red soil for sediment capping to control the internal nutrient release under flow conditions

Lei Xia, Guo Liu, Chunmei Chen, Meiyan Wen, Yangyang Gao

Journal Article

Numerical study and control method of interaction of nucleation and boundary layer separation in condensingflow

Liansuo AN , Zhi WANG , Zhonghe HAN ,

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

Water-level based discrete integrated dynamic control to regulate the flow for sewer-WWTP operation

Zhengsheng Lu, Moran Wang, Mingkai Zhang, Ji Li, Ying Xu, Hanchang Shi, Yanchen Liu, Xia Huang

Journal Article

Operation and control of flow manufacturing based on constraints management for high-mix/low-volume production

GUAN Zailin, PENG Yunfang, MA Li, ZHANG Chaoyong, LI Peigen

Journal Article

Substance flow analysis for an urban drainage system of a representative hypothetical city in China

Hua BAI, Siyu ZENG, Xin DONG, Jining CHEN

Journal Article

Enhanced cross-flow filtration with flat-sheet ceramic membranes by titanium-based coagulation for membranefouling control

Journal Article

Numerical study of internal flow field and flow passage improvement of an inlet particle separator

Florian PAOLI, Tong WANG

Journal Article

Magnetically driven microrobotsmoving in a flow: a review

Jiamiao MIAO, Xiaopu WANG, Yan ZHOU, Min YE, Hongyu ZHAO, Ruoyu XU, Huihuan QIAN

Journal Article

Petros Ioannou: Autopilot Connectivity and Traffic Flow Control (2019-9-18)

12 Aug 2021

Conference Videos

The Following-observing Method for Substance Flow Analysis

Lu Zhongwu

Journal Article

UPFC setting to avoid active power flow loop considering wind power uncertainty

Shenghu LI, Ting WANG

Journal Article