Sort by:
Publication Type:
Open access:
Publication Date:
Periodicals:
Search results
Online since: July 2013
Authors: Ján Duplák, Jozef Jurko, Anton Panda
The theory and practice in engineering industry is not the same.
Sintered carbide is one of the most successful composite engineering materials ever produced.
Key Engineering Materials, Trans Tech Publications, Zurich, 317-322 p
In: Key Engineering Materials.
In: Strojarstvo: journal for Theory and Application in Mechanical Engineering.
Sintered carbide is one of the most successful composite engineering materials ever produced.
Key Engineering Materials, Trans Tech Publications, Zurich, 317-322 p
In: Key Engineering Materials.
In: Strojarstvo: journal for Theory and Application in Mechanical Engineering.
Online since: November 2012
Authors: Qi Xiao, Jiang Sun
Introduction
Some majors relevant to mechanical engineering are always popular.
In 2001, Japanese education proposed the 21-centry university reform engineering, the key is: (1) how to educate the rich humanity—all-dimensional quality education; (2) how to educate the innovation talents—innovation education; (3) how to build a new era school—modern university system.
For instance, we have had two provincial excellent courses “Machine Design” and “Test Technology”, one school excellent course “Engineering Materials” and we will refine some other courses, such as “Mechanical Manufacturing”, “Mechanical Graphing”, “Mechanical CAD/CAM”, “Numerical Control Processing” and “Modern Mechanical Design Method”, into excellent courses.
From those practical materials, student further refined some students’ research projects.
Nelson: Incorporating Rapind Prototyping Machine in Teaching Mechanical Engineering Design, ASME International Mechanical Engineering Congress and Exposition, IMECE 2007, November
In 2001, Japanese education proposed the 21-centry university reform engineering, the key is: (1) how to educate the rich humanity—all-dimensional quality education; (2) how to educate the innovation talents—innovation education; (3) how to build a new era school—modern university system.
For instance, we have had two provincial excellent courses “Machine Design” and “Test Technology”, one school excellent course “Engineering Materials” and we will refine some other courses, such as “Mechanical Manufacturing”, “Mechanical Graphing”, “Mechanical CAD/CAM”, “Numerical Control Processing” and “Modern Mechanical Design Method”, into excellent courses.
From those practical materials, student further refined some students’ research projects.
Nelson: Incorporating Rapind Prototyping Machine in Teaching Mechanical Engineering Design, ASME International Mechanical Engineering Congress and Exposition, IMECE 2007, November
Online since: February 2008
Authors: Zhi Ting Geng, Yu Zhu Liu, Xing Tao Liu
Expansion Coefficient of Sealing Material for Ceramic Metal
Halide Lamps
Geng Zhiting
1, Liu Yuzhu
2 and Liu Xingtao1
1
Department of Materials Science & Engineering of Tsinghua University, Beijing100084, China
2
National Engineering Research Center for Rare Earth Materials, General Research Institute for
Nonferrous Metals, and Grirem Advanced Materials Co.
In our research work, studied the thermal expansion coefficient of the Al2O3-Dy2O3-SiO2 sealing material was a key for ceramic metal halide lamp.
In our research work, studied the thermal expansion coefficient of the Al2O3-Dy2O3- SiO2 sealing material was a key for ceramic metal halide lamp.
The relationship between expansion coefficients of sealing materials and compositions of raw materials were carefully studied, from which a calculation formula were proposed to calculate the coefficients of Al2O3-Dy2O3-SiO2 sealing materials.
Illuminating Engineering Society (1997), pp. 139
In our research work, studied the thermal expansion coefficient of the Al2O3-Dy2O3-SiO2 sealing material was a key for ceramic metal halide lamp.
In our research work, studied the thermal expansion coefficient of the Al2O3-Dy2O3- SiO2 sealing material was a key for ceramic metal halide lamp.
The relationship between expansion coefficients of sealing materials and compositions of raw materials were carefully studied, from which a calculation formula were proposed to calculate the coefficients of Al2O3-Dy2O3-SiO2 sealing materials.
Illuminating Engineering Society (1997), pp. 139
Online since: April 2014
Authors: Hua Wang, Yong Gang Wei, Kong Zhai Li, Dong Dong Wu
Preparation and characterization of the Al/AlN-Al2O3 composite thermal energy storage with phase change materials
Dongdong Wu1,3,a, Hua Wang2,3,b, Yonggang Wei2,3,c, Kongzhai Li2,3,d
1Faculty of Chemical Engineering, Kunming University of Science and Technology, Kunming 650500, China ,
2Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China,
3 State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming 650093, China
ayilulihuawdd@163.com, bwanghuaheat@hotmail.com, cweiygcp@aliyun.com, dkongzhai.li@aliyun.com
Keywords: Al/AlN-Al2O3; Phase change materials; Thermal energy storage; Aluminum
Abstract.
The research showed that nitridation temperature and nitridation time are key parameters of heat storage performance of the composite materials.
Phase change materials (PCMs) are latent heat storage materials.
Most of the reports are about medium and low temperature phase change materials for thermal energy storage.
The four sharp peaks should attributed to aluminium and the weak peaks are attributed to aluminium nitride which indicated that the main components are aluminium and there were small amounts of aluminium nitride in the composite materials, This phenomenon conformed to our expectation in which the Al and AlN are regarded as energy storage materials and encapsulating materials respectively.
The research showed that nitridation temperature and nitridation time are key parameters of heat storage performance of the composite materials.
Phase change materials (PCMs) are latent heat storage materials.
Most of the reports are about medium and low temperature phase change materials for thermal energy storage.
The four sharp peaks should attributed to aluminium and the weak peaks are attributed to aluminium nitride which indicated that the main components are aluminium and there were small amounts of aluminium nitride in the composite materials, This phenomenon conformed to our expectation in which the Al and AlN are regarded as energy storage materials and encapsulating materials respectively.
Online since: June 2014
Authors: Hong Xun Wang, Wei Fang Zhang, Xiao Liang Fang
The research process and application prospect of the smart piezoelectric materials
Xiaoliang Fang1, a, Weifang Zhang1, b, Hongxun Wang 1, c
1BeiHang University, School of Reliability and Systems Engineering, Science & Technology Laboratory on Reliability & Environment Engineering, XueYuan Road No.37,HaiDian District, Beijing, China.
Studies on piezoelectric materials are now the research focus and hotspots of smart materials which have achieved fruitful results.
The common perception materials include photosensitive materials, heat-sensitive materials, moisture-sensitive materials, acoustic emission material, inductor material, shape memory materials, magnetostrictive materials, piezoelectric materials etc.
The common actuating materials include shape-memory materials, electrostrictive materials, electrorheological fluids, magnetostrictive material, magnetorheological fluid and piezoelectric materials [2, 3, 4].
The key focus of the study of smart piezoelectric materials are to compound the structures and increase the serviceability.
Studies on piezoelectric materials are now the research focus and hotspots of smart materials which have achieved fruitful results.
The common perception materials include photosensitive materials, heat-sensitive materials, moisture-sensitive materials, acoustic emission material, inductor material, shape memory materials, magnetostrictive materials, piezoelectric materials etc.
The common actuating materials include shape-memory materials, electrostrictive materials, electrorheological fluids, magnetostrictive material, magnetorheological fluid and piezoelectric materials [2, 3, 4].
The key focus of the study of smart piezoelectric materials are to compound the structures and increase the serviceability.
Online since: May 2013
Authors: Xu Song Xu, Zhi Ying Sun, Zhan Feng Liu, Hai Peng
Deep-Hole Precision Honing of Difficult-to-Cut Materials
Xusong Xu1, a, Zhiying Sun2,b , Zhanfeng Liu3,c , Hai Peng3,d
1College of Mechanical Engineering, Jiangsu Teachers University of Technology, Changzhou, 213001, China
2 Surface Technology Research Institute, Shengli Engineering & Consulting Co., Ltd, Dongying, 257026, China
3 College of Mechanical Engineering, Xi’an Shiyou University, Xi’an, 710065, China
axuxusong@163.com, bszyxxs@126.com, cliuzf57@126.com, dpenghai@126.com
Keywords: Honing precision, Abrasive machining, Titanium alloy, Stainless steel
Abstract.
With the adoption of new material and new technique, strong honing is becoming a high efficiency and precision machining process for difficult-to-cut materials.
Key technologies Honing Machine.
Zhu: Journal of Key Engineering Materials Vol. 202~203 (2001), p.403-406
Peng: Journal of Modern Manufacturing Engineering Vol. 10 (2002), p.59-60 (In Chinese).
With the adoption of new material and new technique, strong honing is becoming a high efficiency and precision machining process for difficult-to-cut materials.
Key technologies Honing Machine.
Zhu: Journal of Key Engineering Materials Vol. 202~203 (2001), p.403-406
Peng: Journal of Modern Manufacturing Engineering Vol. 10 (2002), p.59-60 (In Chinese).
Online since: February 2012
Authors: Wan Shan Wang, Bo Wang, Tian Biao Yu, Guang Hui Zhang, Xue Wei Zhang, Zi Xu Liu
Kinematics and Dynamics Simulation of Key Components of Wind Turbine
Zixu Liu1, a, Guanghui Zhang1, b, Bo Wang1, b, Xuewei Zhang1, b, Tianbiao Yu1, b and Wanshan Wang1,c
1School of Mechanical Engineering and Automation, Northeastern University, Shenyang, PRC
atbyu@mail.neu.edu.cn, btianjiangruixue2008@yahoo.cn, cneuwws@gmail.com
Keywords: Wind Turbine; Blade Element Momentum Theory; Rigid-flexible; Kinematics and Dynamics Analysis
Abstract: In the article, blade element momentum theory is used for calculated aerodynamic load of blade under the different wind velocities. 3D model of key functional components such as blade, tower, hub and nacelle are modeled in Solidworks, the MNF files of blade and tower are gained in finite element analysis software after flexible processed, and the rigid-flexible multi-body dynamic model of the wind turbine’s key components is created in ADAMS.
Fig.3 The normal and tangential components Fig.4 The size and trend of the aerodynamic load of aerodynamic force of the blade element Building simulation models of the wind turbine’s key components Three-dimensional modeling of the wind turbine’s key components.
The wind turbine comprises of the blade, tower, hub, nacelle and some other key components.
According to requirement, we simplify other structures of the wind turbine, build models of the whole machine’s key components, assemble the key components in SolidWorks and lay a foundation for the following simulation.
The multi-body dynamic model of the wind turbine's key components can be built by adding material properties and constraints.
Fig.3 The normal and tangential components Fig.4 The size and trend of the aerodynamic load of aerodynamic force of the blade element Building simulation models of the wind turbine’s key components Three-dimensional modeling of the wind turbine’s key components.
The wind turbine comprises of the blade, tower, hub, nacelle and some other key components.
According to requirement, we simplify other structures of the wind turbine, build models of the whole machine’s key components, assemble the key components in SolidWorks and lay a foundation for the following simulation.
The multi-body dynamic model of the wind turbine's key components can be built by adding material properties and constraints.
Online since: October 2012
Authors: Jian Hua Lv
The appearance quality requirements of As-cast Finish Concrete has become highway project structure standard; And we successfully developed the multi-function DGT-1 spraying wall composite steel template through the designs of different templates and contrast test research of template surface treatment; Engineering has proved that concrete structure used the template pouring not only can reach the requirements of As-cast Finish Concrete in appearance quality, but also have larger of advantages in turnover number, convenience of using, speeding up engineering progress, environmental protecting, and savings costs.
1 Engineering Background
Henan provincial key construction project Ye-Wu highway is an important part of highway system in Henan province.
That is to say, the scale of the cement concrete structure engineering is so large.
The group has proceed an experimental research by varieties of methods such as wall surface template paste PVC board, plastic spraying, brush the paint, the template paste stainless steel plate surface and surface spraying multi-function DGT-1 materials, and it finally put forward a new idea to spray multi-function DGT-1 chemical process of the material in the template wall.
Template steel is the key to ensure construction quality.
Spread on the lesions of the board face evenly with DGT-1 materials after cleaning the damaged position, and then rub down it with paper dips in water after drying. 4 Engineering Effects In the use of the site, multi-function DGT-1 spraying wall composite steel formwork system has proved that: firstly, it can keep template surface from corrosion.
That is to say, the scale of the cement concrete structure engineering is so large.
The group has proceed an experimental research by varieties of methods such as wall surface template paste PVC board, plastic spraying, brush the paint, the template paste stainless steel plate surface and surface spraying multi-function DGT-1 materials, and it finally put forward a new idea to spray multi-function DGT-1 chemical process of the material in the template wall.
Template steel is the key to ensure construction quality.
Spread on the lesions of the board face evenly with DGT-1 materials after cleaning the damaged position, and then rub down it with paper dips in water after drying. 4 Engineering Effects In the use of the site, multi-function DGT-1 spraying wall composite steel formwork system has proved that: firstly, it can keep template surface from corrosion.
Online since: October 2012
Authors: Yi Bo Ai, Wei Dong Zhang, Hao Cui
Multi-level Materials Service Safety Assessment System
Yibo Ai 1, Hao Cui1, and Weidong Zhang1, a
1National Center for Materials Service Safety, University of Science & Technology Beijing, China
*azwd@ustb.edu.cn
Keywords: Multi-level system, Materials service safety, Safety assessment
Abstract.
Multi-level Materials Service Safety Assessment System Domain knowledge and basic information must be fully used to establish the multi-level materials service safety assessment system.
Fig. 1 Multi-level materials service safety assessment system A typical multi-level materials service safety assessment system is shown in Fig. 1.
Fig. 6 The solution to multi-level materials service safety assessment system of the high-speed train gearbox Summery In summary, many significant engineering facilities present the features of multi-level complex systems, and face a great challenge of the materials service safety.
Systems Engineering, 2008. 11(3): 246-262
Multi-level Materials Service Safety Assessment System Domain knowledge and basic information must be fully used to establish the multi-level materials service safety assessment system.
Fig. 1 Multi-level materials service safety assessment system A typical multi-level materials service safety assessment system is shown in Fig. 1.
Fig. 6 The solution to multi-level materials service safety assessment system of the high-speed train gearbox Summery In summary, many significant engineering facilities present the features of multi-level complex systems, and face a great challenge of the materials service safety.
Systems Engineering, 2008. 11(3): 246-262
Online since: December 2012
Authors: Xian Zhang Feng, Li Ping Wang, Li Hong Yu, Zhi Qiang Jiang, Liang Ji Chen, Jing Li, Yan Mei Cui
Materials processing technology, 2000, 102(3):70-77
A comparative study on micro plastic deformation behavior in a SiCp/2024Al Composite and its unreining forced matrix alloy .Materials Letters, 2001, (49): 69-74
Journal of Materials Processing Technology,2000, 103: 267-275
Applied Thermal Engineering, 2006, 26(8-9):846-852
Smart Materials and Structures, 2004, 13 (2): 350-354
A comparative study on micro plastic deformation behavior in a SiCp/2024Al Composite and its unreining forced matrix alloy .Materials Letters, 2001, (49): 69-74
Journal of Materials Processing Technology,2000, 103: 267-275
Applied Thermal Engineering, 2006, 26(8-9):846-852
Smart Materials and Structures, 2004, 13 (2): 350-354