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Online since: December 2013
Authors: Yu Bin Zhang, Huo Mei Zhu, Mei Zhen Zhu
Among them, the 3 d data measurement, data processing, surface reconstruction is the three key technologies of reverse engineering.
Figure 1 Flow chart of reverse engineering Data processing Accurate, rapid and comprehensive access to real 3 d geometry data, is the foundation of the realization of reverse engineering.
And here, reflect the features of parts surface elements of the product is extracted by the genetic material.
Reverse engineering [M].
The application of reverse engineering technology in product design [J].
Figure 1 Flow chart of reverse engineering Data processing Accurate, rapid and comprehensive access to real 3 d geometry data, is the foundation of the realization of reverse engineering.
And here, reflect the features of parts surface elements of the product is extracted by the genetic material.
Reverse engineering [M].
The application of reverse engineering technology in product design [J].
Online since: January 2011
Authors: Shu Ming Wang, Chang Chun Ge, Wei Ping Shen, Qing Zhi Yan
Explosive Consolidation and Its Application on Preparing of Ultra-Fine Grained Tungsten Plasma Facing Material
Shu-Ming Wang1, a, Qing-Zhi Yan1, Wei-Ping Shen1 and Chang-Chun Ge1
1School of Materials Science and Engineering, University of Science & Technology Beijing, Beijing 100083, China
awangshuming03@mails.tsinghua.edu.cn
Keywords: explosive consolidation; Self-Propagating Combustion; Plasma Facing Material
Abstract.
Nuclear fusion is a promising source of environmental friendly energy for the future, and the ultra-fine grained Tungsten (W) is a hopeful candidate material to be used as plasma-facing materials (PFMs), which are the key materials in the International Thermonuclear Experimental Reactor (ITER), for its many useful advantages.
Plasma facing materials (PFMs) is one of the key materials in ITER which will work in extreme conditions, including complex thermal, mechanical, and chemical loads as well as strong irradiation.
Over the past few decades, many materials were tested as PFMs including both low-Z materials (Be, C, carbon fiber composite (CFC), B4C, etc.) and high-Z (W, Mo, etc.) materials [2, 3].
However, the embrittlement of Tungsten material restricts its application on plasma-facing materials (PFMs) [4, 5].
Nuclear fusion is a promising source of environmental friendly energy for the future, and the ultra-fine grained Tungsten (W) is a hopeful candidate material to be used as plasma-facing materials (PFMs), which are the key materials in the International Thermonuclear Experimental Reactor (ITER), for its many useful advantages.
Plasma facing materials (PFMs) is one of the key materials in ITER which will work in extreme conditions, including complex thermal, mechanical, and chemical loads as well as strong irradiation.
Over the past few decades, many materials were tested as PFMs including both low-Z materials (Be, C, carbon fiber composite (CFC), B4C, etc.) and high-Z (W, Mo, etc.) materials [2, 3].
However, the embrittlement of Tungsten material restricts its application on plasma-facing materials (PFMs) [4, 5].
Online since: February 2015
Authors: Li Li Si, Jiu Bing Zhang
Rubber suspension system is a new suspension system in which rubber is used to be the elastic element, thus rubber spring is one of the key components of suspension.
Rubber main spring, the key part of rubber suspension parts, is key of the design.
In the material properties defined, Metal parts are defined as isotropic material, Young's modulus of elasticity E=2.1E5MPa, Poisson's ratio μ=0.3.
To accurately simulate the nonlinear properties of rubber materials, rubber parts defined as isotropic material, Young's modulus of elasticity E=3.5MPa, Poisson's ratioμ=0.499.
As the ANSYS modeling function is not strong enough, we use Pro/Engineer Wildfire professional CAD software for the element modeling of rubber, then the ANSYS should be imported and analyzed, the specific steps of which are no longer listed here.
Rubber main spring, the key part of rubber suspension parts, is key of the design.
In the material properties defined, Metal parts are defined as isotropic material, Young's modulus of elasticity E=2.1E5MPa, Poisson's ratio μ=0.3.
To accurately simulate the nonlinear properties of rubber materials, rubber parts defined as isotropic material, Young's modulus of elasticity E=3.5MPa, Poisson's ratioμ=0.499.
As the ANSYS modeling function is not strong enough, we use Pro/Engineer Wildfire professional CAD software for the element modeling of rubber, then the ANSYS should be imported and analyzed, the specific steps of which are no longer listed here.
Online since: January 2017
Authors: Li Min Wang, Hai Jing Yang, Zhen Ping Sun, Liang Liang Shui, Wen Xian Zhu, Xu Yang
Key Laboratory of Advanced Civil Engineering Materials of the Ministry of Education,
Tongji University, Cao'an Road 4800#, Jiading District, Shanghai 201804, P.R.China
2.
Shanghai Zhongcai Engineering Testing Co.
China alanyi5837@sina.com,bgrtszhp@163.com,ctjclyangxu@163.com, d linsonshui@126.com, eyanghaijings@tongji.edu.cn, fshzwx68@163.com *Corresponding author, Sun Zhenping, Professor, PhD at Key Laboratory of Advanced Civil Engineering Materials of the Ministry of Education, Tongji University.
Introduction Plugging agent is a kind of indispensable materials in many engineering applications, such as tunnel construction, oil and gas exploration, and water resistance of structures [1, 2].
Jiangsu Building Materials. 1 (2010) 37-41
Shanghai Zhongcai Engineering Testing Co.
China alanyi5837@sina.com,bgrtszhp@163.com,ctjclyangxu@163.com, d linsonshui@126.com, eyanghaijings@tongji.edu.cn, fshzwx68@163.com *Corresponding author, Sun Zhenping, Professor, PhD at Key Laboratory of Advanced Civil Engineering Materials of the Ministry of Education, Tongji University.
Introduction Plugging agent is a kind of indispensable materials in many engineering applications, such as tunnel construction, oil and gas exploration, and water resistance of structures [1, 2].
Jiangsu Building Materials. 1 (2010) 37-41
Online since: June 2012
Authors: Bao Zhu Sheng
Low carbon building need low carbon building materials, low carbon decoration materials.
Decoration engineering design, low carbon construction has become an important strategy to protect environment and cope with climate change in decoration industry.
In the huge building and decoration industry system operation process adornment material production and processing, construction are cluttered with carbon emissions, if the energy consumption in decoration engineering construction and manufacture process is all to among them, carbon emissions will be more big.
Development direction and key products of Low carbon decoration materials First,develop low-toxic, non-toxic, low pollution of architectural coatings.
Eighth,develop low carbon steel tubes. since Long-term, our country residential project in engineering building, indoor drainage works iron pipes, indoor water supply works galvanization steel tube is given priority to.
Decoration engineering design, low carbon construction has become an important strategy to protect environment and cope with climate change in decoration industry.
In the huge building and decoration industry system operation process adornment material production and processing, construction are cluttered with carbon emissions, if the energy consumption in decoration engineering construction and manufacture process is all to among them, carbon emissions will be more big.
Development direction and key products of Low carbon decoration materials First,develop low-toxic, non-toxic, low pollution of architectural coatings.
Eighth,develop low carbon steel tubes. since Long-term, our country residential project in engineering building, indoor drainage works iron pipes, indoor water supply works galvanization steel tube is given priority to.
Online since: November 2013
Authors: Zheng Chen, Fei Xu, Xu Liu, Bo Xiong Tao, Xi Li, Jia Yi Chen, Yu Liu Wei
Health Evaluation for Durability of Harbor Engineering in South China Based on AHP
Zheng Chen1,a, Xi Li1, Jiayi Chen1, Yuliu Wei1, Fei Xu1,
Xu Liu1 and Boxiong Tao1
1 Guangxi Key Laboratory of Disaster Prevention and Engineering Safety, School of Civil Engineering and Architecture, Guangxi University, Nanning, Guangxi, 530004, China
achenzheng@gxu.edu.cn
Keywords: AHP, harbor engineering, health evaluation, durability.
Finally, an analysis of harbor engineering in South China verified the feasibility and correctness of the method.
The evaluation results of harbor engineering in South China given in this paper are consistent with the original paper,.
References [1] OH B H, JANG B S: ACI Materials Journal.
Vol. 88 (2008), p. 1384-1395 [3] Michael Henry,Yoshitaka Kato: Engineering and Technology Management.
Finally, an analysis of harbor engineering in South China verified the feasibility and correctness of the method.
The evaluation results of harbor engineering in South China given in this paper are consistent with the original paper,.
References [1] OH B H, JANG B S: ACI Materials Journal.
Vol. 88 (2008), p. 1384-1395 [3] Michael Henry,Yoshitaka Kato: Engineering and Technology Management.
Online since: October 2010
Authors: Lian Hong Zhang, Ya Hui Hu, Shu Xin Wang
Optimal Design Methods of Mechanical Product Driven by Key
Performance of System
HU Yahui1, 2, a, ZHANG Lianhong1, b and WANG Shuxin1, c
1
School of Mechanical Engineering, Tianjin University, Tianjin 300072, China
2
Tianjin Key Laboratory for Control Theory & Applications in Complicated Systems,
Tianjin University of Technology, Tianjin 300384, China
a
fwhhyh@yahoo.cn, b
zhanglh@tju.edu.cn, c shuxinw@tju.edu.cn
Keywords: Performance model, optimal procedure, hydraulic pressure machine
Abstract: This paper studied system level optimal design methods of product using the theories of
performance requirement-driven.
However, optimization design driven by performance makes performance feature became a key element in controlling whole optimization procedure.
Secondly, Identify the key factor that influence product performance, extract the key performance as optimum objective function and finish the mapping from function to structure in the processes.
Quantize quality Performance model Performance model Sub-funtion F1 … Sub-funtion F1j Sub-funtion F11 … units of measure S 1j Funtion parameter P1j units of measure Si Funtion parameter P i quantize standards V1j quantize standards Vi Sub-funtion Fi … optimized process driven by performance Mapping from Performance to Structure key part 1 key part 2 key part m ...
NSC50805101 References [1] Dai Xu-dong and Xie You-bai: Computer Engeneering and Applications (2003) No.39 p43 [2] Yung-Chou Kao, Hsin-Yu Cheng and Chen-Hua She: Journal of Materials Processing Technology (2006), p.98 [3] Ho-Jun Lee, Jae-Woo Lee and Jeong-Oog Lee: Advances in Engineering Software, Vol.40 (2009), p.176 [4] Jiaqing Yu, Jianzhong Ch and Yiping Lu: Advances in Engineering Software, Vol.41 (2010) p.590
However, optimization design driven by performance makes performance feature became a key element in controlling whole optimization procedure.
Secondly, Identify the key factor that influence product performance, extract the key performance as optimum objective function and finish the mapping from function to structure in the processes.
Quantize quality Performance model Performance model Sub-funtion F1 … Sub-funtion F1j Sub-funtion F11 … units of measure S 1j Funtion parameter P1j units of measure Si Funtion parameter P i quantize standards V1j quantize standards Vi Sub-funtion Fi … optimized process driven by performance Mapping from Performance to Structure key part 1 key part 2 key part m ...
NSC50805101 References [1] Dai Xu-dong and Xie You-bai: Computer Engeneering and Applications (2003) No.39 p43 [2] Yung-Chou Kao, Hsin-Yu Cheng and Chen-Hua She: Journal of Materials Processing Technology (2006), p.98 [3] Ho-Jun Lee, Jae-Woo Lee and Jeong-Oog Lee: Advances in Engineering Software, Vol.40 (2009), p.176 [4] Jiaqing Yu, Jianzhong Ch and Yiping Lu: Advances in Engineering Software, Vol.41 (2010) p.590
Online since: May 2011
Authors: Jia Yan Zheng, Hai Jing Liu
Numerical Model of Road Tunnel with Void between the Liner and Surrounding Rock and Its Application
Jia-yan Zheng1,a, Hai-jing Liu2,b
1Key Laboratory of Bridge-Structure Engineering of Ministry of Communications,
Chongqing, 400074, China
2 Chongqing Communication Research and Design Institute, Chongqing, 400067, China ajyzheng@126.com, bliuhaijing@cmhk.com
Key words: tunnel, void between the liner and the rock, computational model, safety assessment
Abstract: Void between road tunnel liner and surrounding rock is one of the most frequent defects in tunnel engineering.
In geotechnical and tunnel engineering, Goodman element is used most to simulate the interaction and study the mechanism of the liner and the rock.
The surrounding rock of the tunnel is considered to be ideal elastic-plastic material following non-associated Drucker-Prager yield law while the liner is considered to be isotropic elastic material.
Acknowledgments Thanks for the financial support from the fund of Key Laboratory of Bridge-Structure Engineering of Ministry of Communications, Chongqing Jiaotong University (No.CQSLBF-Y10-7) and the fund of Key Project of Chongqing committee on science and technology (No.
The application of ground-penetrating radar in non-destructive test of tunnel engineering, Journal of Chengdu University, 2003(3):6-10(in Chinese) [2] Song Ruigang, Zhang Dingli.
In geotechnical and tunnel engineering, Goodman element is used most to simulate the interaction and study the mechanism of the liner and the rock.
The surrounding rock of the tunnel is considered to be ideal elastic-plastic material following non-associated Drucker-Prager yield law while the liner is considered to be isotropic elastic material.
Acknowledgments Thanks for the financial support from the fund of Key Laboratory of Bridge-Structure Engineering of Ministry of Communications, Chongqing Jiaotong University (No.CQSLBF-Y10-7) and the fund of Key Project of Chongqing committee on science and technology (No.
The application of ground-penetrating radar in non-destructive test of tunnel engineering, Journal of Chengdu University, 2003(3):6-10(in Chinese) [2] Song Ruigang, Zhang Dingli.
Online since: September 2013
Authors: Hong Bin Tao
Explore the Management of Hydro-Engineering Project and Related Issues about Quality Control
Hongbin Tao
School of Civil Engineering, Jiujiang University, Jiujiang, Jiangxi, China 332005
Keywords: Water Resources and Hydropower Engineering; Quality Management; Measures
Abstract.
Do the preliminary engineering quality management, it is necessary to firmly establish the "quality first" mentality.
Material inspection.
Construction site of new types of materials, such as steel, cement, sand, gravel, etc., should be spot checks, meet the design requirements before use, in order to ensure the quality of construction.
Control of Construction Environment and Construction Process Construction of the project, the environmental factors that affect the quality of a lot of engineering, engineering and technical environments such as engineering geology, hydrology, meteorology, etc.; project management environments, such as quality assurance system, quality management system; labor environment such as labor portfolio, workplace, face and so on.
Do the preliminary engineering quality management, it is necessary to firmly establish the "quality first" mentality.
Material inspection.
Construction site of new types of materials, such as steel, cement, sand, gravel, etc., should be spot checks, meet the design requirements before use, in order to ensure the quality of construction.
Control of Construction Environment and Construction Process Construction of the project, the environmental factors that affect the quality of a lot of engineering, engineering and technical environments such as engineering geology, hydrology, meteorology, etc.; project management environments, such as quality assurance system, quality management system; labor environment such as labor portfolio, workplace, face and so on.
Online since: March 2015
Authors: Xiao Hai Zhu, Ya Li Li
Application of Rubber Asphalt in Chengdu 3rd Ring Rd in Traffic Engineering
Xiaohai Zhu 1, a, Yali Li 2,b
1Xihua University, Chengdu, 610039, China
2Chengdu Polytechnic, Chengdu, 610041, China
axhzhu@yahoo.com, b5563146@qq.com
Keywords: ubber asphalt; rubber asphalt; composition material; traffic engineering; aggregate gradation design.
In practical engineering, considering the road grade, raw material prices and other factors, suggestion for selecting rubber powder 20 mesh - between 40 eyes using. 4.4 The proportion of rubber powder In order to determine the proportion of rubber powder addition on properties of rubber asphalt influence, the contrast test of various conventional indexes of different rubber powder of the design of the.
References [1] MA Mull, K Stuart, A Yehia .Fracture resistance characterization of chemically modified crumb rubber asphalt pavement .Journal of Materials Science, (2002 ) [2] R Siddique, TR Naik.
Cementitious composites containing recycled tire rubber: an overview of engineering properties and potential applications.
Cement Concrete and Aggregates.(2001) [4] CHEN Xiao-li,WANG Yao-hua,LIU Bi.Research on measuring the pressure of the zone near explosive.Engineering Blasting.(2004) [5] LI Yan, ZHANG Yong, ZHANG Yin-xi.Dynamic vulcanization of the waste rubber powder/hdpe/poe thermoplastic elastomers.Polymeric Materials Science & Engineering.(2004)
In practical engineering, considering the road grade, raw material prices and other factors, suggestion for selecting rubber powder 20 mesh - between 40 eyes using. 4.4 The proportion of rubber powder In order to determine the proportion of rubber powder addition on properties of rubber asphalt influence, the contrast test of various conventional indexes of different rubber powder of the design of the.
References [1] MA Mull, K Stuart, A Yehia .Fracture resistance characterization of chemically modified crumb rubber asphalt pavement .Journal of Materials Science, (2002 ) [2] R Siddique, TR Naik.
Cementitious composites containing recycled tire rubber: an overview of engineering properties and potential applications.
Cement Concrete and Aggregates.(2001) [4] CHEN Xiao-li,WANG Yao-hua,LIU Bi.Research on measuring the pressure of the zone near explosive.Engineering Blasting.(2004) [5] LI Yan, ZHANG Yong, ZHANG Yin-xi.Dynamic vulcanization of the waste rubber powder/hdpe/poe thermoplastic elastomers.Polymeric Materials Science & Engineering.(2004)