Resource Type

Journal Article 76

Conference Videos 1

Year

2023 5

2022 7

2021 5

2020 3

2019 8

2018 8

2017 6

2016 3

2015 4

2014 1

2013 1

2011 1

2010 2

2009 4

2008 7

2007 8

2006 1

2005 2

open ︾

Keywords

compression 9

combustion 5

injection molding 4

Compression 2

Compressive sensing 2

eccentric compression 2

gas-assisted injection molding 2

homogeneous 2

stress-strain relationship 2

3D printing 1

in-situ measurement 1

in-situ resource utilization 1

Acceleration 1

Architecture 1

Benchmark 1

Bio-composites 1

Bridge design 1

CFRP 1

CFRP strips 1

open ︾

Search scope:

排序： Display mode:

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 partsmelt flow process in a closed cavity becomes more complex because of the moving cavity boundary during compressionIn this study, a 3D simulation method was developed for injection-compression molding.cavity were investigated by using the proposed simulation method and compared with those of injection moldingdifferent points along the flow path is complicated rather than monotonically decreased in injection molding

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

HTML PDF Collect

Micro-optical fabrication by ultraprecision diamond machining and precision molding

Hui LI, Likai LI, Neil J. NAPLES, Jeffrey W. ROBLEE, Allen Y. YI

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 2,   Pages 181-192 doi: 10.1007/s11465-017-0444-z

Abstract: using ultraprecision single point diamond machining followed by high volume production methods such as compressionor injection molding.For consumers, compression molding or injection molding provide efficient and high quality optics atmachine design and machining processes such as slow tool and fast too servo are described then both compressionmolding and injection molding of polymer optics are discussed.

Keywords： ultraprecision machining     slow tool servo     fast tool servo     compression molding     injection molding     microlens    

HTML PDF Collect

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 andmeasurement, non-destructive, high accuracy, low cost, and is of great application value for the injection molding

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

HTML PDF Collect

Review of small aspheric glass lens molding technologies

Shaohui YIN,Hongpeng JIA,Guanhua ZHANG,Fengjun CHEN,Kejun ZHU

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 1,   Pages 66-76 doi: 10.1007/s11465-017-0417-2

Abstract: As an advanced manufacturing technology, the glass lens molding process has been recognized as a low-costprofile deviation of the glass lens are greatly affected by various key technologies for glass lens molding, including glass and mold-die material forming, mold-die machining, and lens molding.These key technical factors, which affect the quality of the glass lens molding process, are systematicallytechnical bottlenecks and problems, as well as to predict the potential applicability of glass lens molding

Keywords： aspheric glass lens     mold-die manufacturing     lens molding     molding process simulation    

HTML PDF Collect

Precision glass molding: Toward an optimal fabrication of optical lenses

Liangchi ZHANG,Weidong LIU

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 1,   Pages 3-17 doi: 10.1007/s11465-017-0408-3

Abstract: Precision glass molding (PGM) has thus been developed to realize an efficient manufacture of such opticalThis makes a PGM process sensitive to its molding temperature.

Keywords： precision glass molding     optical lens     constitutive modeling     optimization     manufacturing chain     Industry    

HTML PDF Collect

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 an

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

HTML PDF Collect

Influence of steel corrosion on axial and eccentric compression behavior of coral aggregate concrete

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 6,   Pages 1415-1425 doi: 10.1007/s11709-021-0786-9

Abstract: To study the behavior of coral aggregate concrete (CAC) column under axial and eccentric compression,the compression behavior of CAC column with different types of steel and initial eccentricity (eNu under axial and eccentric compression

Keywords： coral aggregate concrete column     axial compression     eccentric compression     steel corrosion     calculation    

HTML PDF Collect

Behavior of dam concrete under biaxial compression-tension and triaxial compression-compression-tension

WANG Huailiang, SONG Yupu

Frontiers of Structural and Civil Engineering 2008, Volume 2, Issue 4,   Pages 323-328 doi: 10.1007/s11709-008-0043-5

Abstract: Specimens subjected to biaxial compression-tension (C-T) and triaxial compression-compression-tension

Keywords： requirement     wet-screened concrete     compression-tension     maximum aggregate     principal    

HTML PDF Collect

Recent advancements in optical microstructure fabrication through glass molding process

Tianfeng ZHOU,Xiaohua LIU,Zhiqiang LIANG,Yang LIU,Jiaqing XIE,Xibin WANG

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 1,   Pages 46-65 doi: 10.1007/s11465-017-0425-2

Abstract: This paper presents an overview of optical microstructure fabrication through glass molding and highlightsthe applications of optical microstructures in mold fabrication and glass molding.Moreover, the latest advancements in glass molding technologies are detailed, including new mold materialsand their fabrication methods, viscoelastic constitutive modeling of glass, and microstructure moldingprocess, as well as ultrasonic vibration-assisted molding technology.

Keywords： optical microstructure     microgroove     microlens     glass molding process     single-point diamond cutting    

HTML PDF Collect

Effects of compression ratio on the combustion characteristics of a homogeneous charge compression ignition

SONG Ruizhi, ZHOU Longbao, LIU Shenghua, LI Wei, HU Tiegang

Frontiers in Energy 2007, Volume 1, Issue 4,   Pages 463-467 doi: 10.1007/s11708-007-0068-0

Abstract: The effects of homogeneous charge compression ignition (HCCI) engine compression ratio on its combustion

Keywords： homogeneous     cylinder     combustion     compression     dimethyl    

HTML PDF Collect

Pressure in Gas-assisted Injection Molding

Ou Changjin

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

Abstract:

In this study,  an effective control method and strategy based on fuzzy neural network has been developed for gas injection pressure accurate control in gas-assisted injection. A fuzzy neural network controller with five layers and its control algorithm are established.  The learning ability of neural network is used to optimize the rules of the fuzzy logic so as to improve the adaptability of system.  The simulation of the system capability and three segmental injected pressure control are carried out under the environment of MATLAB and the results show that this theoretic model is feasible, and the control system has good characteristics and control action.

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

HTML PDF Collect

Numerical study of ignition mechanism of n-heptane direct injection compression-ignition engine

Xiaoping GUO, Zhanjie WANG,

Frontiers in Energy 2009, Volume 3, Issue 4,   Pages 432-439 doi: 10.1007/s11708-009-0050-9

Abstract: A detailed chemical dynamical mechanism of oxidation of n-heptane was implemented into kiva-3 code to study the ignition mechanism of a high-temperature, high-pressure, three-dimensional-space, transient turbulent, non-homogeneous, mono-component fuel in the engine. By testing the quantity of the heat released by the chemical reaction within the cylinder cell, the elementary reaction showing an obvious increase in the cell temperature was defined as ignition reaction and the corresponding cell as ignition position. The main pathway of the ignition reaction was studied by using the reverse deducing method. The result shows that the ignition in the engine can be divided into low-temperature ignition and high-temperature ignition, both of which follow the same rule in releasing heat, called the impulse heat releasing feature. Low-temperature ignition reaction, whose ignition reaction is c5h9o1-4=ch3cho+c3h5-a, follows the oxidation mechanism, while high-temperature ignition reaction, whose ignition reaction is c2h3o1-2=ch3co, follows the decomposition mechanism. No matter which ignition it is in, the chemical reaction that restrains the ignition reaction from lasting is the deoxidization reaction of alkylperoxy radicals.

Keywords： compression-ignition engine     ignition mechanism     elementary reaction     n-heptane    

HTML PDF Collect

Improvement of engine performance with high compression ratio based on knock suppression using Miller

Haiqiao WEI, Jie YU, Lei ZHOU

Frontiers in Energy 2019, Volume 13, Issue 4,   Pages 691-706 doi: 10.1007/s11708-019-0621-3

Abstract: In theory, high compression ratio has the potential to improve the thermal efficiency and promote theHowever, the application of high compression ratio is substantially limited by the knock in practicalThe objective of this work is to comprehensively investigate the application of high compression ratioratio similar to CR10, which could eliminate the knock limits at a high compression ratio and high loadTo verify the advantages of the high compression ratio, the fuel economy and power performance of CR10

Keywords： high compression ratio     knock     Miller cycle     split injection     engine performance    

HTML PDF Collect

Efficient controller area network data compression for automobile applications

Yu-jing WU,Jin-Gyun CHUNG

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 1,   Pages 70-78 doi: 10.1631/FITEE.1400136

Abstract: In this paper, we present a CAN message compression method to reduce the CAN frame length.By using an embedded test board, we show that 64-bit engine management system (EMS) CAN data compression

Keywords： Controller area network (CAN)     Electronic control units (ECUs)     Data compression     Signal rearrangement    

HTML PDF Collect

Schedule Compression Impact on Construction Project Safety

Curt Webb,Lu Gao,Ling-guang Song

Frontiers of Engineering Management 2015, Volume 2, Issue 4,   Pages 344-350 doi: 10.15302/J-FEM-2015059

Abstract: In addition, construction schedulers are frequently forced to incorporate aggressive schedule compressionAs already discussed by previous researchers, these schedule compression techniques have direct impactsResearchers have also pointed out that schedule compression will affect safety incidents such as Occupationaland project quality, and minimal research has been done to directly quantify the effect of schedule compressionresearch, we conducted a survey and statistical analysis to investigate the relationship between schedule compression

Keywords： construction safety     schedule compression     overtime     work shift     Hurdle model    

HTML PDF Collect

Title Author Date Type Operation

Three-dimensional numerical simulation for plastic injection-compression molding

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

Journal Article

Micro-optical fabrication by ultraprecision diamond machining and precision molding

Hui LI, Likai LI, Neil J. NAPLES, Jeffrey W. ROBLEE, Allen Y. YI

Journal Article

density measurement for plastic injection molding via ultrasonic technology

Journal Article

Review of small aspheric glass lens molding technologies

Shaohui YIN,Hongpeng JIA,Guanhua ZHANG,Fengjun CHEN,Kejun ZHU

Journal Article

Precision glass molding: Toward an optimal fabrication of optical lenses

Liangchi ZHANG,Weidong LIU

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

Influence of steel corrosion on axial and eccentric compression behavior of coral aggregate concrete

Journal Article

Behavior of dam concrete under biaxial compression-tension and triaxial compression-compression-tension

WANG Huailiang, SONG Yupu

Journal Article

Recent advancements in optical microstructure fabrication through glass molding process

Tianfeng ZHOU,Xiaohua LIU,Zhiqiang LIANG,Yang LIU,Jiaqing XIE,Xibin WANG

Journal Article

Effects of compression ratio on the combustion characteristics of a homogeneous charge compression ignition

SONG Ruizhi, ZHOU Longbao, LIU Shenghua, LI Wei, HU Tiegang

Journal Article

Pressure in Gas-assisted Injection Molding

Ou Changjin

Journal Article

Numerical study of ignition mechanism of n-heptane direct injection compression-ignition engine

Xiaoping GUO, Zhanjie WANG,

Journal Article

Improvement of engine performance with high compression ratio based on knock suppression using Miller

Haiqiao WEI, Jie YU, Lei ZHOU

Journal Article

Efficient controller area network data compression for automobile applications

Yu-jing WU,Jin-Gyun CHUNG

Journal Article

Schedule Compression Impact on Construction Project Safety

Curt Webb,Lu Gao,Ling-guang Song

Journal Article