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Online since: January 2012
Authors: Jia Yu, Bo Ming Zhang, Jing Jie Cong
A Knowledge-based DFM Advisor for Composite Manufacturing Process
Cong Jingjie1,a, Zhang Boming2,b and Yu Jia3,c
1,2Harbin Institute of Technology, Center for composites & structure, Harbin, China
3Harbin Engineering of Technology, Harbin, China
ajingjiecong@gmail.com, bzbm@hit.edu.cn, cyujia@hrbeu.edu.cn
Keywords: Concurrent Engineering; composite materials; computer aided design; Design for manufacturing; computer aided manufacturing
Abstract.
Nau, “Automated manufacturability analysis: a survey,” Research in Engineering Design, vol. 9, 1997, pp. 168-190
McAdams, “Methods for automated manufacturability analysis of injection-molded and die-cast parts,” Research in Engineering Design, vol. 21, 2010, pp. 1-24
“Exploiting new materials and processes for higher productivity use of advanced composite technologies-material and design,” Materials and Design, vol. 25, 2004, pp. 565-571
Advanced Materials Research, vol. 79, 2009, pp. 1173-1176
Nau, “Automated manufacturability analysis: a survey,” Research in Engineering Design, vol. 9, 1997, pp. 168-190
McAdams, “Methods for automated manufacturability analysis of injection-molded and die-cast parts,” Research in Engineering Design, vol. 21, 2010, pp. 1-24
“Exploiting new materials and processes for higher productivity use of advanced composite technologies-material and design,” Materials and Design, vol. 25, 2004, pp. 565-571
Advanced Materials Research, vol. 79, 2009, pp. 1173-1176
Online since: December 2014
Authors: Yi Lun Liu, Bing Li, Zi Jun Pan, Xuan Dong Zhang
., Ltd, Zhuhai 519060 China
2College of mechanical and electrical Engineering, Central South University, Changsha, 410083, China
a376243031@qq.com,blb15601@163.com,clb15601103@163.com, d675608703@qq.com
Key words: Characteristic impedance; Impedance control; Engineering design; Process control.
Characteristic impedance theory In the engineering designs of strip-line, it is desirable to use the elliptic-wave guide at hand so that the elliptic strip-line can be obtained simply by changing the width of the strip instead of changing the elliptic waveguide.
The film thickness, line thickness and dielectric constant of material is fixed in the engineering designs of strip-line.
Laura.Changes in water absorption and modules of elasticity of flexible printed circuit board materials in high humidity testing[C].European Microelectronics and Packing Conference, Brighton, 2011, 1969-2013 [4] L.
W.Chul,J.S.Boo.Surface finishes of rolled copper foil for flexible printed circuit board[J].Materials science and engineering, 2008, 483(2): 723-726 [5] K.
Characteristic impedance theory In the engineering designs of strip-line, it is desirable to use the elliptic-wave guide at hand so that the elliptic strip-line can be obtained simply by changing the width of the strip instead of changing the elliptic waveguide.
The film thickness, line thickness and dielectric constant of material is fixed in the engineering designs of strip-line.
Laura.Changes in water absorption and modules of elasticity of flexible printed circuit board materials in high humidity testing[C].European Microelectronics and Packing Conference, Brighton, 2011, 1969-2013 [4] L.
W.Chul,J.S.Boo.Surface finishes of rolled copper foil for flexible printed circuit board[J].Materials science and engineering, 2008, 483(2): 723-726 [5] K.
Online since: October 2005
Authors: Y. Gao, Z. Tao
Effects of Key Parameters on the Performance of a New In-Process
Optical Measurement Method
Z.
Gao Department of Mechanical Engineering, Hong Kong University of Science and Technology Clear Water Bay, Kowloon, Hong Kong, China Keywords: Error Analysis, In-Process Optical Measurement, Surface Profile, Coolant, Grinding, Process Control Abstract.
The effects of key parameters on performance of the new method are examined.
Xu: J. of Materials Processing Technology, Vol. 129, p. 10
Tse: Key Engineering Materials, Vol. 238-239 (2003), p. 157.
Gao Department of Mechanical Engineering, Hong Kong University of Science and Technology Clear Water Bay, Kowloon, Hong Kong, China Keywords: Error Analysis, In-Process Optical Measurement, Surface Profile, Coolant, Grinding, Process Control Abstract.
The effects of key parameters on performance of the new method are examined.
Xu: J. of Materials Processing Technology, Vol. 129, p. 10
Tse: Key Engineering Materials, Vol. 238-239 (2003), p. 157.
Online since: September 2013
Authors: Shi Bin Li, Gang Chang Ji, Xiu Qin Wang, Ming Han Xu, Jie Guang Song
Application of Dispersibility Mechanism for the Dispersibility of ZrB2 Powder Materials in the Liquor
Jieguang Song1a and Xiuqin Wang2, Minghan Xu1, Shibin Li1, Gangchang Ji1
1 Jiujiang Key Laboratory of Green Remanufacturing, School of Mechanical and Materials Engineering, Jiujiang University, Jiujiang, Jiangxi, 332005, China
2 Library, Jiujiang University, Jiujiang, Jiangxi, 332005, China
a songjieguang@163.com
Keywords: Dispersibility mechanism; Sedimentation method; ZrB2 particles.
With the fast development of preparing technology of new materials, the solving method of conglobation and decentralization problem of superfine powders already is key technology for preparing and developing new high-performance materials.
Introduction With the fast development of preparing new materials, the conglobation and decentralization problem of superfine powders already is key factor for preparing and developing new high-performance materials [1].
Zeta potential of ZrB2 particles is tested by Zeta potential tester (Model: ZS90 of English Malvern Company, Locality: Key lab of nonferrous materials and new processing technology, Guilin University of Technology, China).
Acknowledgments The authors are grateful for financial support from The Key Subjects Construction Program for the Materials Processing Engineering of Jiangxi Province during the 12th Five-Year Plan Period, The Science and Technique Foundation of the Educational Department of Jiangxi Province in China, and the Natural Science Foundation of Jiangxi Province, China (Grant No. 20114BAB216023).
With the fast development of preparing technology of new materials, the solving method of conglobation and decentralization problem of superfine powders already is key technology for preparing and developing new high-performance materials.
Introduction With the fast development of preparing new materials, the conglobation and decentralization problem of superfine powders already is key factor for preparing and developing new high-performance materials [1].
Zeta potential of ZrB2 particles is tested by Zeta potential tester (Model: ZS90 of English Malvern Company, Locality: Key lab of nonferrous materials and new processing technology, Guilin University of Technology, China).
Acknowledgments The authors are grateful for financial support from The Key Subjects Construction Program for the Materials Processing Engineering of Jiangxi Province during the 12th Five-Year Plan Period, The Science and Technique Foundation of the Educational Department of Jiangxi Province in China, and the Natural Science Foundation of Jiangxi Province, China (Grant No. 20114BAB216023).
Online since: March 2007
Authors: Jun Zhang, Fa Qin Xie, Heng Zhi Fu, Lin Liu
Until now, directional solidification technique becomes more
and more important research area and active technology in the field of materials science and
engineering.
Directional solidification of Cu-Ni alloys under deep supercooling [11] The intrinsic limitation of traditional Bridgman directional solidification makes men of science and engineering into dilemmatic situation: either solidifying the materials under lower thermal gradient, or pursuing higher thermal gradient with more complex equipments.
The development of directional solidification plays the same important roles in the field materials science and engineering.
Xie: Science and Technology of Advanced Materials, Vol.2 (2001), P.193
Magnetism and Magnetic Materials, Vols.196-197 (1999), p.737 [13] T.
Directional solidification of Cu-Ni alloys under deep supercooling [11] The intrinsic limitation of traditional Bridgman directional solidification makes men of science and engineering into dilemmatic situation: either solidifying the materials under lower thermal gradient, or pursuing higher thermal gradient with more complex equipments.
The development of directional solidification plays the same important roles in the field materials science and engineering.
Xie: Science and Technology of Advanced Materials, Vol.2 (2001), P.193
Magnetism and Magnetic Materials, Vols.196-197 (1999), p.737 [13] T.
Online since: January 2014
Authors: Na Zhao, Wen Chen, Tao Yan
Although the research and application of scaffold materials for tendon tissue engineering has achieved some success, but the application materials or the presence of biocompatibility, degradation problems or have poor mechanical properties, machining molding defects, there is still a big gap between the ideal scaffold materials.
This study evaluated the different biological materials in the repair of Achilles tendon injury in effect, provide a theoretical reference for the key to construct tissue engineered tendon is to find appropriate scaffold materials for tendon cell adhesion, growth and functional differentiation.
Therefore, the development of synthetic materials and modified natural materials, make it become accord with the requirements of ideal scaffold material is an important research direction of tendon tissue engineering.
For tendon tissue engineering, scaffold material is the ideal of the key.
Research results will directly promote the development of scaffold materials for tendon tissue engineering, have broad prospects in clinical application.
This study evaluated the different biological materials in the repair of Achilles tendon injury in effect, provide a theoretical reference for the key to construct tissue engineered tendon is to find appropriate scaffold materials for tendon cell adhesion, growth and functional differentiation.
Therefore, the development of synthetic materials and modified natural materials, make it become accord with the requirements of ideal scaffold material is an important research direction of tendon tissue engineering.
For tendon tissue engineering, scaffold material is the ideal of the key.
Research results will directly promote the development of scaffold materials for tendon tissue engineering, have broad prospects in clinical application.
Online since: June 2011
Authors: Wei Li
Research on the Key Technology and Application
of the Process Monitor Configuration System
Li Wei
College of Information Science & Engineering,Chongqing Jiaotong University, Chongqing China
lwcqcn@sina.com.cn
Key words: configuration, monitor, wall material
Abstract.
In the central monitor layer, it is constructed by some dedicated and reliable monitoring computer stations with the Siemens WINCC composition, including the operator station and engineer station.
Conclusion Most production enterprises of new wall materials are a kind of labor-intensive enterprises, in recent years labor costs is rising, this process monitor configuration system is helpful for improving the automation, intelligence and production efficiency of new wall materials equipments, reducing production investment costs and promoting the healthy development of new wall materials enterprises.
Ship Electronic Engineering Vol.25 (2005), p.73
Control Engineering Vol.18 (2005),p.58
In the central monitor layer, it is constructed by some dedicated and reliable monitoring computer stations with the Siemens WINCC composition, including the operator station and engineer station.
Conclusion Most production enterprises of new wall materials are a kind of labor-intensive enterprises, in recent years labor costs is rising, this process monitor configuration system is helpful for improving the automation, intelligence and production efficiency of new wall materials equipments, reducing production investment costs and promoting the healthy development of new wall materials enterprises.
Ship Electronic Engineering Vol.25 (2005), p.73
Control Engineering Vol.18 (2005),p.58
Online since: July 2011
Authors: Ning Shan, Guo Heng
The composite materials can meet the high requirements of safety, economy and comfort for aeronautic vehicles, and the materials have been necessary and important structural materials of aviation engineering[1-6].
So, the study on new theory and technology of health test for large composite materials structures, which is used in the rapid and real-time test of engineering structures damages and the reasonable assessment of damages, has important theoretical meaning and broad application prospect for ensuring the running safety of engineering structures, forecasting catastrophic accident, setting a reasonable damage tolerance, decreasing the cost of safeguard, extending work life of engineering structures, and so on.
The clearing of coupling agent is difficult while using, so the on-line health testing isn’t make to most engineering structures.
References [1] Du Shanyi: Advanced composite materials and aerospace engineering.
Proceedings of SPIE - The International Society for Optical Engineering, Vol7648(2010), pp.76480T
So, the study on new theory and technology of health test for large composite materials structures, which is used in the rapid and real-time test of engineering structures damages and the reasonable assessment of damages, has important theoretical meaning and broad application prospect for ensuring the running safety of engineering structures, forecasting catastrophic accident, setting a reasonable damage tolerance, decreasing the cost of safeguard, extending work life of engineering structures, and so on.
The clearing of coupling agent is difficult while using, so the on-line health testing isn’t make to most engineering structures.
References [1] Du Shanyi: Advanced composite materials and aerospace engineering.
Proceedings of SPIE - The International Society for Optical Engineering, Vol7648(2010), pp.76480T
Online since: July 2012
Authors: Xing Xiang Zhang, Xue Chen Wang, Wei Li
Microencapsulated Phase Change Materials and Its Application
in Thermal-Regulated Fibers
Wei Lia, Xing-xiang Zhangb* and Xue-chen Wangc
State Key Laboratory of Hollow Fiber Membrane Materials and Processes, Tianjin Municipal Key Lab of Fiber Modification and Functional Fiber, School of Materials Science and Engineering, Tianjin Polytechnic University, Tianjin 300160, China
a hiweilee@gmail.com, b zhangpolyu@gmail.com (corresponding author), c wangxch09@yahoo.cn
Keywords: microcapsule; phase change material; thermal-regulated; fiber; n-dodecanol
Abstract.
The phase change materials (PCMs) can absorb, store or release large latent heat over a defined temperature range while the materials change phase or state, so they can be potentially used in thermal energy storage.
In this paper, a series of microencapsulated phase change materials (MicroPCMs) with n-octadecane and n-dodecanol as core were successfully fabricated respectively, where the styrene-based copolymer, acrylic based copolymer, melamine-formaldehyde resin and polyurea were selected as shell materials.
The thermo-regulated fiber has been used as the raw materials of jacket liners, long underwear, sleeping bags, and socks, etc.
Conclusion Microencapsulated phase change materials (MicroPCMs) with n-octadecane and n-dodecanol as core were successfully fabricated respectively, using styrene-based copolymer, acrylic based copolymer, melamine-formaldehyde resin and polyurea as shell materials.
The phase change materials (PCMs) can absorb, store or release large latent heat over a defined temperature range while the materials change phase or state, so they can be potentially used in thermal energy storage.
In this paper, a series of microencapsulated phase change materials (MicroPCMs) with n-octadecane and n-dodecanol as core were successfully fabricated respectively, where the styrene-based copolymer, acrylic based copolymer, melamine-formaldehyde resin and polyurea were selected as shell materials.
The thermo-regulated fiber has been used as the raw materials of jacket liners, long underwear, sleeping bags, and socks, etc.
Conclusion Microencapsulated phase change materials (MicroPCMs) with n-octadecane and n-dodecanol as core were successfully fabricated respectively, using styrene-based copolymer, acrylic based copolymer, melamine-formaldehyde resin and polyurea as shell materials.
Online since: September 2014
Authors: Rou Wang, Le Huang, Cui Mei Li
The concept of the Internet of Things was brought forward in 1999.The Internet of Things is an Internet connected to all the material objects in short.
The trends of sensor technology development are roughly divided into the following aspects: challenge to the detection range; integrated and multi-functional; challenge to the undeveloped areas; biological sensors; sensor technology wise for the statue, smart sensor, for example; discovery and use of new materials.
The M2M technology is the key of the network to achieve a critical performance.
Internet of Things: Summarize on Concepts, Architecture and Key Technology Problem [J].
Wang, Future internet: The internet of things [C], 2010 3rd IEEE International Conference on Advanced Computer Theory and Engineering (ICACTE), 2010, 5: 376-380
The trends of sensor technology development are roughly divided into the following aspects: challenge to the detection range; integrated and multi-functional; challenge to the undeveloped areas; biological sensors; sensor technology wise for the statue, smart sensor, for example; discovery and use of new materials.
The M2M technology is the key of the network to achieve a critical performance.
Internet of Things: Summarize on Concepts, Architecture and Key Technology Problem [J].
Wang, Future internet: The internet of things [C], 2010 3rd IEEE International Conference on Advanced Computer Theory and Engineering (ICACTE), 2010, 5: 376-380