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Online since: September 2013
Authors: Yu Li, De Qiang Zhang, Jin Hua Li
The Design and Analysis on 200 Liters Large Material Barrels with Double L-rings
Zhang Deqiang1, a, Li Yu1,b, Li Jinhua1,c
1Faculty of Mechanical Engineering and Automation, Liaoning University of Technology, Jinzhou 121001
a 13941607815@163.com, b 15443042@qq.com, c llijinhua@163.com
Key words: Large material barrel; solidworks; Finite Element Analysis; Structural optimization
Abstract: Structural design and optimization of 200 liters large material barrels with Double L-ring are studied, Stacking stress analysis and optimization analysis in SolidWorks Simulation Finite Element Analysis plug-in three-dimensional model of the material barrel, Plug-in of Finite Element Analysis SolidWorks simulation is used to get the result of analysis for stacking stress, optimization and dropping test.
System design ideas According to the two L-ring drums 200 liters of large material requirements for use in three-dimensional modeling environment solidworks design 200 liters barrel three-dimensional model of large materials, then built by stacking three-dimensional stress analysis of materials bucket model.
(b)Top Enlargement (c)Bottom Enlargement (a)Cutaway view Fig.2 Constraints and loads Fig.1 Material barrel dimensional view Product structure design method Double L-ring 200 liters overall shape of a large barrel of materials shown in Fig. 1.a, materials have a barrel top and bottom L rings, so called double L ring, L-ring drums in the material stacking, handling, lifting and material barrel drops serve to strengthen the role of strength.
These are not included in the simulation parameters of the factors that will affect the results actually Acknowledgements Key technologies and related mold manufacturing technology research(Liaoning Province Key Laboratory of funded projects LS2010080).
Blow molding of plastic raw materials, technology and equipment development [J].
System design ideas According to the two L-ring drums 200 liters of large material requirements for use in three-dimensional modeling environment solidworks design 200 liters barrel three-dimensional model of large materials, then built by stacking three-dimensional stress analysis of materials bucket model.
(b)Top Enlargement (c)Bottom Enlargement (a)Cutaway view Fig.2 Constraints and loads Fig.1 Material barrel dimensional view Product structure design method Double L-ring 200 liters overall shape of a large barrel of materials shown in Fig. 1.a, materials have a barrel top and bottom L rings, so called double L ring, L-ring drums in the material stacking, handling, lifting and material barrel drops serve to strengthen the role of strength.
These are not included in the simulation parameters of the factors that will affect the results actually Acknowledgements Key technologies and related mold manufacturing technology research(Liaoning Province Key Laboratory of funded projects LS2010080).
Blow molding of plastic raw materials, technology and equipment development [J].
Online since: March 2008
Authors: Chuan Zhen Huang, Chong Hai Xu, Han Lian Liu, Bin Fang
Effect of Fabrication Parameters on Mechanical Properties of Al2O3
Ceramic Tool Materials
Bin Fang
1,2,a
, Chuanzhen Huang1,b, Hanlian Liu
1,c
and Chonghai Xu
2,d
1
Center for Advanced Jet Engineering Technologies (CaJET), School of Mechanical Engineering,
Shandong University, Jinan, China, 250061
2
School of Mechanical Engineering, Shandong Institute of Light Industry, Jinan, China, 250353
a
fangb315@163.com; bchuanzhenh@sdu.edu.cn; clhl70@sdu.edu.cn; dxch@sdili.edu.cn
Keywords: Ceramic tool materials, Fabrication technology, Orthogonal experiment
Abstract.
To develop the ceramic tool materials with good mechanical properties, the following key problems, such as proper raw powders, the optimum compositions and fabrication parameters, should be rationally solved.
Table 3 shows that the key factor that affects the flexural strength is fabrication temperature, and the followed factor is the fabrication pressure.
So, the grain size of the materials increases with an increase in both fabrication temperature and duration time, but the effect of fabrication temperature on the grain size of the materials is stronger than that of duration time on the grain size of materials.
Therefore, the effect of fabrication temperature and pressure on the mechanical properties of materials is more significant than that of duration time on the mechanical properties of materials.
To develop the ceramic tool materials with good mechanical properties, the following key problems, such as proper raw powders, the optimum compositions and fabrication parameters, should be rationally solved.
Table 3 shows that the key factor that affects the flexural strength is fabrication temperature, and the followed factor is the fabrication pressure.
So, the grain size of the materials increases with an increase in both fabrication temperature and duration time, but the effect of fabrication temperature on the grain size of the materials is stronger than that of duration time on the grain size of materials.
Therefore, the effect of fabrication temperature and pressure on the mechanical properties of materials is more significant than that of duration time on the mechanical properties of materials.
Online since: May 2006
Authors: W. Zhou, Jian Liu, S.L. Huang, L. Cheng, P.P. Chen, Sheng Min Zhang, Q.M. Luo, H. Gong
Adhesion and Proliferation of Chondrocytes on Nano- HA/PDLLA
Scaffolds for Bone Tissue Engineering
P.P.
Introduction Hydroxyapatite/poly (D, L-lactide) (HA/PDLLA) composite is an important bone tissue engineering scaffold material and plays a key role in the guidance of new bone formation into desired shapes.
Thomas had demonstrated that nanophase ceramics and metals could enhance osteoblast adhesion on them compared with conventional materials [2, 3].
However, osteocytes adhesion on nano-HA composite tissue engineering scaffold has not been reported.
Reis: Materials Science and Engineering C Vol.25 (2005), p.215-229
Introduction Hydroxyapatite/poly (D, L-lactide) (HA/PDLLA) composite is an important bone tissue engineering scaffold material and plays a key role in the guidance of new bone formation into desired shapes.
Thomas had demonstrated that nanophase ceramics and metals could enhance osteoblast adhesion on them compared with conventional materials [2, 3].
However, osteocytes adhesion on nano-HA composite tissue engineering scaffold has not been reported.
Reis: Materials Science and Engineering C Vol.25 (2005), p.215-229
Online since: September 2016
Authors: N. Lakshmi Narasimhan, P. Karthik
Karthik1, b
1Department of Mechanical Engineering, SSN College of Engineering, Kelambakkam-603110, Tamil Nadu, India.
LHTS systems employ special materials referred to as phase change materials (PCMs) for storing and retrieval of thermal energy.
Al-Hallaj, A review on phase change energy storage: materials and applications, Ener Conv.
[2] Sharma., Review on thermal energy storage with phase change materials and applications, Renew.
Stefanakos, David Couling, Numerical analysis of charging and discharging performance of a thermal energy storage system with encapsulated phase change material, Applied Thermal Engineering 71 (2014) 481-500
LHTS systems employ special materials referred to as phase change materials (PCMs) for storing and retrieval of thermal energy.
Al-Hallaj, A review on phase change energy storage: materials and applications, Ener Conv.
[2] Sharma., Review on thermal energy storage with phase change materials and applications, Renew.
Stefanakos, David Couling, Numerical analysis of charging and discharging performance of a thermal energy storage system with encapsulated phase change material, Applied Thermal Engineering 71 (2014) 481-500
Online since: December 2013
Authors: Han Li Wang, Yang Li
Analysis on Energy Conservation Materials’ Influence
on Energy Saving Construction Cost
HanLi Wang 1,a, Yang Li 2,b
1Hubei University of Education Department of Architecture
and Material Engineering,Wuhan, 430205, China
2Luoyang Architectural Engineering Quality Surveillance,
Luoyang, 471000, China
a865220176@qq.com, b4715552@qq.com
Key words: Energy-saving Building, Energy Conservation Materials in Building, Project Cost, Sustainable Development
Abstract: Engery-saving buildings are not always high-cost, the construction needs to consider not only the cost of construction, but also the consumption cost in use.
It follows that it will bring much more economic benefit in building maintenance than the increased cost in engineering construction with proper materials.
Author: HanLi Wang, Hubei University of Education Department of Architecture and Material Engineering.
A study on Building Energy Efficiency and Engineering Cost Management[J].
GuangDong Building Materials, 2011,(2): 108-109 [9] He Luhua.Key Analysis on Design Standards for Energy Efficiency of Liaoning Residential Building[J].
It follows that it will bring much more economic benefit in building maintenance than the increased cost in engineering construction with proper materials.
Author: HanLi Wang, Hubei University of Education Department of Architecture and Material Engineering.
A study on Building Energy Efficiency and Engineering Cost Management[J].
GuangDong Building Materials, 2011,(2): 108-109 [9] He Luhua.Key Analysis on Design Standards for Energy Efficiency of Liaoning Residential Building[J].
Online since: July 2008
Authors: Yan Jun Qiu, Ze Zhong Jiang, Tao Xie, Bo Lan
Crack Propagation Behavior of Asphalt Concrete
Part I: A Study into Influence of Different Materials
Tao XIE
1,a
, Zezhong JIANG
2,b, Yanjun QIU
2,c and LAN Bo
3,d
1
College of Civil and Architecture Engineering, Guizhou University, Guiyang 550003, China
2
College of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, China
3
Department of Transportation of Sichuan Province, Chengdu 610041, China
a
xie_tao96@163.com,b qmrjzz@yahoo.com.cn, cpublicqiu@163.com, dsclb2008@163.com
Keywords: asphalt concrete, crack propagation behavior, CT, material
Abstract: The fracture resistance of asphalt materials significantly influences the service life of
asphalt pavements and consequently affects the maintenance and rehabilitation costs of the
pavement network.
The specially designed loading system is the necessary accessory for the CT machine at the State Key Laboratory of Frozen Soil Engineering of China.
The CT test was carried out in the State Key Laboratory of Frozen Soil Engineering from Aug.24 to Sept.10, 2006.The asphalt concrete samples were used to study the crack propagation law under uniaxial compression with CT real-in time scanning test.
The Crack Propagation Behavior is influenced by the materials of it's.
Dissertation, School of Civil Engineering, Southwest Jiaotong University, Chengdu, 2006
The specially designed loading system is the necessary accessory for the CT machine at the State Key Laboratory of Frozen Soil Engineering of China.
The CT test was carried out in the State Key Laboratory of Frozen Soil Engineering from Aug.24 to Sept.10, 2006.The asphalt concrete samples were used to study the crack propagation law under uniaxial compression with CT real-in time scanning test.
The Crack Propagation Behavior is influenced by the materials of it's.
Dissertation, School of Civil Engineering, Southwest Jiaotong University, Chengdu, 2006
Excavation Mechanics Analyses for Shield Tunnels Considering Consolidation Material Property Impacts
Online since: November 2013
Authors: Zhi Guo Zhang, Peng Pan, Xiao Guang Xi
Current researches of material engineering give little investigations on the construction impacts of soil consolidation material property.
Current researches of material engineering give little investigations on the tunneling construction impacts of soil consolidation material property.
However, the impacts of soil consolidation on existing buried structures according to the post-construction state are little attention to tunnel engineers.
The engineering properties of the soils at the tunneling site are given in Table 1. 3D finite element numerical model A 3D finite element method combined with the soil consolidation theory and underground construction unloading theory is adopted based on a commercial finite element analysis program, as shown in Fig. 2.
Therefore, the soil post-construction deformation of the existing structures should be intensively monitored in engineering practice, especially within one year after the construction completion.
Current researches of material engineering give little investigations on the tunneling construction impacts of soil consolidation material property.
However, the impacts of soil consolidation on existing buried structures according to the post-construction state are little attention to tunnel engineers.
The engineering properties of the soils at the tunneling site are given in Table 1. 3D finite element numerical model A 3D finite element method combined with the soil consolidation theory and underground construction unloading theory is adopted based on a commercial finite element analysis program, as shown in Fig. 2.
Therefore, the soil post-construction deformation of the existing structures should be intensively monitored in engineering practice, especially within one year after the construction completion.
Online since: July 2013
Authors: Ryuji Katayama, Yu Huai Liu, Fang Wang, Wei Zhang, Shou Yi Yang, Yuan Tao Zhang, Takashi Matsuoka
Key Factors for Metal Organic Chemical Vapor Deposition of InGaN Films with High InN Molar Fraction
Yuhuai Liu1, a*, Fang Wang2, b, Wei Zhang3,c, and Shouyi Yang4,d
Yuantao Zhang5, e, Ryuji Katayama6,f and Takashi Matsuoka7,g
1, 2, 3, 4School of Information Engineering, Zhengzhou University, Science Road 100, Zhengzhou, Henan 450001, P.
China 5State Joint Key Lab of Integrated Optoelectronics, Jilin University, Qianjin Street 2699, Changchun, Jilin 130012, P.
China 6,7Institute for Materials Research, Katahira 2-1-1, Sendai, Miyagi 980-8577, Japan a*ieyhliu@zzu.edu.cn (corresponding author), biefwang@zzu.edu.cn, c634895869@qq.com, diesyyang@zzu.edu.cn, ezhangyt@jlu.edu.cn, fkatayama@imr.tohoku.ac.jp, gmatsuoka@imr.tohoku.ac.jp Keywords: InGaN, InN molar fraction, MOCVD, V/III ratio, reactor pressure.
Nitride semiconductors, such as GaN (Eg~3.4 eV), InN (Eg~0.7 eV), AlN Eg~ (6.2 eV) and their alloys [1-4], are one of the best candidates to meet these needs due to their superior materials properties.
Improvement of the these materials will make one step closer to the practical applications in solar cells covering the whole solar spectrum [5], optical fiber communication laser diodes with high wavelength stability as a function of the temperature [6], and various electronic devices with high electron mobility [7].
China 5State Joint Key Lab of Integrated Optoelectronics, Jilin University, Qianjin Street 2699, Changchun, Jilin 130012, P.
China 6,7Institute for Materials Research, Katahira 2-1-1, Sendai, Miyagi 980-8577, Japan a*ieyhliu@zzu.edu.cn (corresponding author), biefwang@zzu.edu.cn, c634895869@qq.com, diesyyang@zzu.edu.cn, ezhangyt@jlu.edu.cn, fkatayama@imr.tohoku.ac.jp, gmatsuoka@imr.tohoku.ac.jp Keywords: InGaN, InN molar fraction, MOCVD, V/III ratio, reactor pressure.
Nitride semiconductors, such as GaN (Eg~3.4 eV), InN (Eg~0.7 eV), AlN Eg~ (6.2 eV) and their alloys [1-4], are one of the best candidates to meet these needs due to their superior materials properties.
Improvement of the these materials will make one step closer to the practical applications in solar cells covering the whole solar spectrum [5], optical fiber communication laser diodes with high wavelength stability as a function of the temperature [6], and various electronic devices with high electron mobility [7].
Online since: July 2015
Authors: Chun Fang Xue
Method of Lines to Solve the Linear Temperature Field of LENS
Chun-fang XUE
Armored Force Engineering Institute, Department of Mechanical Engineering, China
xchunfang@sina.com
Keywords: Laser Engineered Net shaping, Method of Lines, temperature field.
In addition, when LENS used in aerospace equipment key structure of high temperature components and properties of laser cladding rapid repair upgrade remanufacturing, parts partial or whole parts belong to the heterogeneous materials.
Graded materials by using LENS, material property change along the thickness direction, thus simplify the model as shown in fig. 1.
Such as manufacturing metal - ceramic gradient materials, ceramic powder melting point higher than metal powder (e.g., Si3N4 melting point is 1700 ℃), if the laser power density is small, cannot make molten powder materials.
Key Engineering Materials, 353-358(2007)2003-2006
In addition, when LENS used in aerospace equipment key structure of high temperature components and properties of laser cladding rapid repair upgrade remanufacturing, parts partial or whole parts belong to the heterogeneous materials.
Graded materials by using LENS, material property change along the thickness direction, thus simplify the model as shown in fig. 1.
Such as manufacturing metal - ceramic gradient materials, ceramic powder melting point higher than metal powder (e.g., Si3N4 melting point is 1700 ℃), if the laser power density is small, cannot make molten powder materials.
Key Engineering Materials, 353-358(2007)2003-2006
Online since: May 2015
Authors: Shou Mian Chen, Yu Hang Zhao, Min Zhong, Ming Li, Shao Hai Zeng, Wei Zhang
Raised SiGe S/D plays a critical role in strain engineering.
Introduction Due to the continuing trend of downscaling of semiconductor devices, strain engineering is now widely adopted in complementary metal–oxide–semiconductor (CMOS) device fabrication.
It has also been reported that a raised SiGe S/D can play a critical role in strain engineering [5], i.e., the SiGe film is overfilling the S/D trench after the SiGe deposition process.
Key features of the deposited SiGe films and the Si cap layer.
However, it should be noticed that due to the large range of stress proximity effects in CMOS materials, the modeling of an isolated devices is not sufficient to predict the final circuit behavior.
Introduction Due to the continuing trend of downscaling of semiconductor devices, strain engineering is now widely adopted in complementary metal–oxide–semiconductor (CMOS) device fabrication.
It has also been reported that a raised SiGe S/D can play a critical role in strain engineering [5], i.e., the SiGe film is overfilling the S/D trench after the SiGe deposition process.
Key features of the deposited SiGe films and the Si cap layer.
However, it should be noticed that due to the large range of stress proximity effects in CMOS materials, the modeling of an isolated devices is not sufficient to predict the final circuit behavior.