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Intelligent methods for the process parameter determination of plastic injection molding

Huang GAO, Yun ZHANG, Xundao ZHOU, Dequn LI

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 1,   Pages 85-95 doi: 10.1007/s11465-018-0491-0

Abstract:

Injection molding is one of the most widely used material processing methods in producing plasticarticle reviews the recent studies and developments of the intelligent methods applied in the process parameterdetermination of injection molding.A framework of process parameter determination is proposed after comprehensive discussions.

Keywords： injection molding     intelligent methods     process parameters     optimization    

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Experiment Research of the Quantity Theoretical Orthogonal Design Optimal Method for the Coal-seam Injection

Qin Shuyu,Qin Weihan

Strategic Study of CAE 2003, Volume 5, Issue 10,   Pages 52-55

Abstract:

To apply the orthogonal design to the optimization of the coal-seam injection technical parameters' combination is a better method that realizes the best effect of injection for the coal-seam withBut with this method, its effect cannot definitely satisfy the injection engineering requirement formethod that applies the quantity theory and orthogonal design to determine the optimal combination of injectionThe experiments show that this method can save the quantity of injection experiment engineering and are

Keywords： quantity theory     technical parameter     orthogonal design     coal-seam injection     experimental study    

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Three-dimensional numerical simulation for plastic injection-compression molding

Yun ZHANG, Wenjie YU, Junjie LIANG, Jianlin LANG, Dequn LI

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 1,   Pages 74-84 doi: 10.1007/s11465-018-0490-1

Abstract:

Compared with conventional injection molding, injection-compression molding can mold optical partsIn this study, a 3D simulation method was developed for injection-compression molding.in the cavity were investigated by using the proposed simulation method and compared with those of injectionpressures at different points along the flow path is complicated rather than monotonically decreased in injection

Keywords： injection-compression molding     simulation     injection molding     melt flow     cavity pressure    

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density measurement for plastic injection molding via ultrasonic technology

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 4, doi: 10.1007/s11465-022-0714-2

Abstract: Density variation during the injection molding process directly reflects the state of plastic melt andExperiments with different process conditions are conducted, including different melt temperature, injectioni> measurement, non-destructive, high accuracy, low cost, and is of great application value for the injection

Keywords： ultrasonic measurement     melt density     in-situ measurement     injection molding    

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Economic Development Models of Gas Condensate Reservoir

Liu Tingyuan

Strategic Study of CAE 2001, Volume 3, Issue 3,   Pages 85-91

Abstract: condensate reservoirs, including reinjection with 75% dry gas recycling, dumpflooding of gas, nitrogen injection, water injection, water and gas alternating injection, C〇2 injection, etc.

Keywords： gas condensate reservoir     development model     gas injection     nitrogen injection     water injection     CO 2 injection     economic    

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Trend prediction technology of condition maintenance for large water injection units

Xiaoli XU, Sanpeng DENG

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 2,   Pages 171-175 doi: 10.1007/s11465-009-0091-0

Abstract: Large-sized water injection units are key equipment in oilfields.maintenance costs, trend prediction technology is studied to achieve condition-based maintenance for water injectionproposed trend prediction technology can reflect the operating condition trend change of the water injection

Keywords： water injection units     condition-based maintenance     trend prediction    

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methodology for regulating fuel stratification and improving fuel economy of GCI mode via double main-injection

Frontiers in Energy 2023, Volume 17, Issue 5,   Pages 678-691 doi: 10.1007/s11708-022-0859-z

Abstract: regulating concentration stratification and promoting fuel-gas mixing by utilizing the double main-injectioninjected gasoline with an octane number of 82.7 to investigate the energy ratio between the two main-injectionHigh-load experiments were conducted using the DMI strategy and compared with the single main-injectionAt a 10 bar indicated mean effective pressure, increasing the main-injection-2 ratio (Rm-2) shortens the injection duration and increases the mean mixing time.

Keywords： gasoline compression ignition     injection strategy     fuel stratification     high efficiency     high load    

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CO, N, and CO/N mixed gas injection for enhanced shale gas recovery and CO geological storage

Frontiers in Energy 2023, Volume 17, Issue 3,   Pages 428-445 doi: 10.1007/s11708-023-0865-9

Abstract: For the core flooding tests, pure gas injection showed that the breakthrough time of CO2 was of CO2 gas injectionFor CO2/N2 mixed gas injection, with the increase of CO2 concentration of the pure CO2 gas injection

Keywords： shale gas     gas injection     competitive adsorption     enhanced shale gas recovery     CO2 geological    

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Processing parameter optimization of fiber laser beam welding using an ensemble of metamodels and MOABC

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 4, doi: 10.1007/s11465-022-0703-5

Abstract: In fiber laser beam welding (LBW), the selection of optimal processing parameters is challenging and plays a key role in improving the bead geometry and welding quality. This study proposes a multi-objective optimization framework by combining an ensemble of metamodels (EMs) with the multi-objective artificial bee colony algorithm (MOABC) to identify the optimal welding parameters. An inverse proportional weighting method that considers the leave-one-out prediction error is presented to construct EM, which incorporates the competitive strengths of three metamodels. EM constructs the correlation between processing parameters (laser power, welding speed, and distance defocus) and bead geometries (bead width, depth of penetration, neck width, and neck depth) with average errors of 10.95%, 7.04%, 7.63%, and 8.62%, respectively. On the basis of EM, MOABC is employed to approximate the Pareto front, and verification experiments show that the relative errors are less than 14.67%. Furthermore, the main effect and the interaction effect of processing parameters on bead geometries are studied. Results demonstrate that the proposed EM-MOABC is effective in guiding actual fiber LBW applications.

Keywords： laser beam welding     parameter optimization     metamodel     multi-objective    

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Experimental study of stratified lean burn characteristics on a dual injection gasoline engine

Chun XIA, Tingyu ZHAO, Junhua FANG, Lei ZHU, Zhen HUANG

Frontiers in Energy 2022, Volume 16, Issue 6,   Pages 900-915 doi: 10.1007/s11708-021-0812-6

Abstract: In this study, dual injection stratified combustion mode is used to accelerate the burning rate of leanThe effects of engine control parameters such as the excess air coefficient (Lambda), direct injectionand DI timing on combustion, fuel consumption, gaseous emissions, and particulate emissions of a dual injectionThere exists a spark window for dual injection stratified lean burn mode, in which the spark timing hasThe dual injection stratified lean burn has a wide range of applications which can effectively reduce

Keywords： dual injection     stratified lean burn     gasoline engine     particulate matter emission     combustion analysis    

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Microcellular injection molding process for producing lightweight thermoplastic polyurethane with customizable

Thomas ELLINGHAM, Hrishikesh KHARBAS, Mihai MANITIU, Guenter SCHOLZ, Lih-Sheng TURNG

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 1,   Pages 96-106 doi: 10.1007/s11465-018-0498-6

Abstract:

A three-stage molding process involving microcellular injection molding with core retraction and anfoams of varying local densities, microstructures, and mechanical properties in the same microcellular injection

Keywords： thermoplastic polyurethane     microcellular injection molding     cavity expansion     compressive strength     hysteresis    

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Determination of effective stress parameter of unsaturated soils: A Gaussian process regression approach

Pijush Samui, Jagan J

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 2,   Pages 133-136 doi: 10.1007/s11709-013-0202-1

Abstract: article examines the capability of Gaussian process regression (GPR) for prediction of effective stress parametervolumetric water content ( ), residual water content ( ), bubbling pressure ( ), suction ( ) and fitting parameterA sensitivity analysis has been done to determine the effect of each input parameter on .

Keywords： unsaturated soil     effective stress parameter     Gaussian process regression (GPR)     artificial neural network    

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Pressure in Gas-assisted Injection Molding

Ou Changjin

Strategic Study of CAE 2007, Volume 9, Issue 5,   Pages 27-32

Abstract: nbsp;an effective control method and strategy based on fuzzy neural network has been developed for gas injectionpressure accurate control in gas-assisted injection.

Keywords： gas-assisted injection molding     fuzzy neural network     gas-injection pressure control    

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Experimental study on the CO2 foam injecting way of profile control and flooding in heterogeneous reservoirs

Zhao Jinsheng,Tan Junling,Gu Zhengfu,Liu Xiaochun

Strategic Study of CAE 2012, Volume 14, Issue 11,   Pages 88-93

Abstract: parallel cores with approximate permeability contrast，CO2 foam flooding experiment was simulated through 2 injectionThe optimal injection slug combination was first 0.2 PV (pore volume) foaming agent solution and then

Keywords： heterogeneous reservoirs     CO2 foam     profile control and flooding     injection parameter     experimental    

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Combustion characteristics of a direct-injection diesel engine fueled with Fischer-Tropsch diesel

HUANG Yongcheng, ZHOU Longbao, PAN Keyu

Frontiers in Energy 2007, Volume 1, Issue 2,   Pages 239-244 doi: 10.1007/s11708-007-0033-7

Abstract: pressures and injector needle lifts, the combustion characteristics of an unmodified single-cylinder direct-injectionThe results show that F-T diesel fuel exhibits a slightly longer injection delay and injection duration
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Title Author Date Type Operation

Intelligent methods for the process parameter determination of plastic injection molding

Huang GAO, Yun ZHANG, Xundao ZHOU, Dequn LI

Journal Article

Experiment Research of the Quantity Theoretical Orthogonal Design Optimal Method for the Coal-seam Injection

Qin Shuyu,Qin Weihan

Journal Article

Three-dimensional numerical simulation for plastic injection-compression molding

Yun ZHANG, Wenjie YU, Junjie LIANG, Jianlin LANG, Dequn LI

Journal Article

density measurement for plastic injection molding via ultrasonic technology

Journal Article

Economic Development Models of Gas Condensate Reservoir

Liu Tingyuan

Journal Article

Trend prediction technology of condition maintenance for large water injection units

Xiaoli XU, Sanpeng DENG

Journal Article

methodology for regulating fuel stratification and improving fuel economy of GCI mode via double main-injection

Journal Article

CO, N, and CO/N mixed gas injection for enhanced shale gas recovery and CO geological storage

Journal Article

Processing parameter optimization of fiber laser beam welding using an ensemble of metamodels and MOABC

Journal Article

Experimental study of stratified lean burn characteristics on a dual injection gasoline engine

Chun XIA, Tingyu ZHAO, Junhua FANG, Lei ZHU, Zhen HUANG

Journal Article

Microcellular injection molding process for producing lightweight thermoplastic polyurethane with customizable

Thomas ELLINGHAM, Hrishikesh KHARBAS, Mihai MANITIU, Guenter SCHOLZ, Lih-Sheng TURNG

Journal Article

Determination of effective stress parameter of unsaturated soils: A Gaussian process regression approach

Pijush Samui, Jagan J

Journal Article

Pressure in Gas-assisted Injection Molding

Ou Changjin

Journal Article

Experimental study on the CO2 foam injecting way of profile control and flooding in heterogeneous reservoirs

Zhao Jinsheng,Tan Junling,Gu Zhengfu,Liu Xiaochun

Journal Article

Combustion characteristics of a direct-injection diesel engine fueled with Fischer-Tropsch diesel

HUANG Yongcheng, ZHOU Longbao, PAN Keyu

Journal Article