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Online since: April 2014
Authors: Yong Gang Kang, Zhong Qi Wang, Yuan Yang, Zheng Ping Chang
The materials are shown in Table 1.
Table 1 Material properties used in modeling (for bracket and skin panel) Parameters Mass density Young’s modules Poisson ratio Bracket 7.85×103 [kg/m3] 2.06×105 [MPa] 0.3 Skin panel 2.6×103 [kg/m3] 7.0×104 [MPa] 0.33 Table 2 Comparison of coordinate values of the riveting points Riveting points Theoretical coordinates (undeformed) Coordinates after deformation by FES Coordinates by analytical calculation P1 913.3532 4800.5839 913.738 4799.036 913.6124 4799.0181 -2931.9375 -2934.913 -2934.7949 P2 1065.1751 1065.5898 1065.4207 4800.0799 4798.507 4798.5163 -2160.4067 -2162.36 -2162.2747 P3 915.3162 915.7056 915.5482 4800.1961 4799.784 4799.7574 -1388.8016 -1390.67 -1390.6802 P4 913.1735 913.4356 913.6072 7000.5839 6999.039 6998.9893 -2931.7198 -2933.69 -2933.5452 P5 1065.9954 1066.2205 1066.4285 7000.0799 6998.492 6998.4998 -2160.1891 -2162.11 -2162.0354 P6 915.1364 915.3973 915.569 7000.1961 6999.807 6999.7616 -1388.584 -1390.39 -1390.4513 Fig.6 Component and total deviation
This work is supported by National Natural Science Foundation of China (Grant No. 51375396).
Mechanical Science and Technology for Aerospace Engineering, 2010, 30 (6): 897-901.
ASME Journal of Engineering for Industry. 1991, 113 (4): 412-418
Table 1 Material properties used in modeling (for bracket and skin panel) Parameters Mass density Young’s modules Poisson ratio Bracket 7.85×103 [kg/m3] 2.06×105 [MPa] 0.3 Skin panel 2.6×103 [kg/m3] 7.0×104 [MPa] 0.33 Table 2 Comparison of coordinate values of the riveting points Riveting points Theoretical coordinates (undeformed) Coordinates after deformation by FES Coordinates by analytical calculation P1 913.3532 4800.5839 913.738 4799.036 913.6124 4799.0181 -2931.9375 -2934.913 -2934.7949 P2 1065.1751 1065.5898 1065.4207 4800.0799 4798.507 4798.5163 -2160.4067 -2162.36 -2162.2747 P3 915.3162 915.7056 915.5482 4800.1961 4799.784 4799.7574 -1388.8016 -1390.67 -1390.6802 P4 913.1735 913.4356 913.6072 7000.5839 6999.039 6998.9893 -2931.7198 -2933.69 -2933.5452 P5 1065.9954 1066.2205 1066.4285 7000.0799 6998.492 6998.4998 -2160.1891 -2162.11 -2162.0354 P6 915.1364 915.3973 915.569 7000.1961 6999.807 6999.7616 -1388.584 -1390.39 -1390.4513 Fig.6 Component and total deviation
This work is supported by National Natural Science Foundation of China (Grant No. 51375396).
Mechanical Science and Technology for Aerospace Engineering, 2010, 30 (6): 897-901.
ASME Journal of Engineering for Industry. 1991, 113 (4): 412-418
Online since: November 2012
Authors: Liang Peng Kou, Yue Tong Qiu, Xiao Ning Li, Zhong Sheng Sun
Experiment of Finger Deformation by Pneumatic Nozzle
Zhongsheng SUN1,a, Liangpeng KOU1,b, Yuetong QIU1,c and Xiaoning LI1,d
1School of Mechanical Engineering Nanjing University of Science and Technology Nanjing, China
a billsun1978@163.com, bkouliangpeng@163.com, c1003947599@qq.com, dXnli139@139.com
Keywords: skin deformation, viscoelatic model, tactile display, virtual reality
Abstract.
Fig.6 The dynamical change of finger Fig.7 Profile of finger deformation Fig.8 Fitting curve from original deformation in different pressures data of finger deformation Biomechanical Characteristics of Finger Pad The soft tissue of finger skin, a type of viscoelastic material, is different from the traditional elastic material and metal plastic material as well.
Acknowledgements This work was financially supported by National Natural Science Foundation of China (No: 50905089) and Qing Lan Project.
Journal of Biomedical Optics,2003,8(1):80-86
Fig.6 The dynamical change of finger Fig.7 Profile of finger deformation Fig.8 Fitting curve from original deformation in different pressures data of finger deformation Biomechanical Characteristics of Finger Pad The soft tissue of finger skin, a type of viscoelastic material, is different from the traditional elastic material and metal plastic material as well.
Acknowledgements This work was financially supported by National Natural Science Foundation of China (No: 50905089) and Qing Lan Project.
Journal of Biomedical Optics,2003,8(1):80-86
Online since: September 2013
Authors: Cheng Hui Gao, Ding Shen, Jian Xing Lin, Zhi Ying Ren
Introduction
With the new material and new technology being introduced into the production of the nanometer device, and feature size of nanometer device being narrowed, a higher demand on the measurements and characterizations of the surface roughness must be met.
The materials used in the analysis 1.1.
Acknowledgements This work is supported by the National Natural Science Foundation of China (No. 50775039).
Comparison of metrology methods for quantify -ing the line edge roughness of patterned features[J].Vacuum Science and Technology B:Microelectronics and Nanometer Structures, 1999,17:2488-2498
Journal of Harbin industrial university, 2005, 33 (5) : 674-678
The materials used in the analysis 1.1.
Acknowledgements This work is supported by the National Natural Science Foundation of China (No. 50775039).
Comparison of metrology methods for quantify -ing the line edge roughness of patterned features[J].Vacuum Science and Technology B:Microelectronics and Nanometer Structures, 1999,17:2488-2498
Journal of Harbin industrial university, 2005, 33 (5) : 674-678
Online since: September 2007
Authors: Ionut Ichim, Qing Li, Wei Li, Michael Swain, Daniel Lin
Damage Evaluation of Bone Tissues with Dental Implants
Daniel Lin
1,a
, Qing Li
1,b
, Wei Li
c, Ionut Ichim2d
and Michael Swain
2,3e
1
School of Aerospace, Mechanical and Mechatronic Engineering, The University of Sydney,
Sydney, NSW 2006, Australia
2
Department of Oral Science, Faculty of Dentistry, University of Otago, New Zealand
3
Faculty of Dentistry, The University of Sydney, NSW 2006, Australia
a
master.yoda99@yahoo.com, bQing.Li@aeromech.usyd.edu.au, wei@aeromech.usyd.edu.au,
d
ionut.ichim@stonebow.otago.ac.nz, emswain@mail.usyd.edu.au
Keywords: dental implant, damage, bone, remodeling, finite element, CT scan
Abstract: Dental implants have been extensively used in prosthetic dentistry over the last two
decades.
Material and methods The 3D model, resembling a dental implant embedded in dental bone was constructed based on CT scan images in Rhinoceros.
The cortical and cancellous bones are treated as isotropic materials.
[3] Franchi, M., Orsini, E., Trire, A., Quaranta, M., Martini, D., Guiliani Piccari, G., Ruggeri, and A., Ottani, V: The Scientific World Journal 4 (2004), p.1093
(Eds): Clin Impl Mater, Advances in Biomaterials, Vol. 8. (1990) Elsevier Science Publisher B.V., Amsterdam, Printed in The Netherlands, p.309
Material and methods The 3D model, resembling a dental implant embedded in dental bone was constructed based on CT scan images in Rhinoceros.
The cortical and cancellous bones are treated as isotropic materials.
[3] Franchi, M., Orsini, E., Trire, A., Quaranta, M., Martini, D., Guiliani Piccari, G., Ruggeri, and A., Ottani, V: The Scientific World Journal 4 (2004), p.1093
(Eds): Clin Impl Mater, Advances in Biomaterials, Vol. 8. (1990) Elsevier Science Publisher B.V., Amsterdam, Printed in The Netherlands, p.309
Online since: May 2014
Authors: Ai Ying Tang
But with the development of science and technology, network coverage has been so wide today, university aerobics teachers’s way of information processing technology is still relatively underdeveloped.And the way they get aerobics latest theories, methods, dynamic information are quite outdated.
But with the development of science and technology, network coverage has been so wide today, university aerobics teachers’s way of information processing technology is still relatively underdeveloped.And the way they get aerobics latest theories, methods, dynamic information are quite outdated.
Material basis.
National Information Infrastructure in full swing, so to break the limitations of information resources construction time and space for aerobics Information Resources of University network environment to provide a superior material conditions of production methods and advanced ways .
References [1] Almind T.C, Lngwersen P.: Journal of Documentation, Vol. 2 (1997) No 53, p.404-426 [2] Information on http://www.cindoc.csic.cs/Cybermetrics/ [3] Information on http://www.
But with the development of science and technology, network coverage has been so wide today, university aerobics teachers’s way of information processing technology is still relatively underdeveloped.And the way they get aerobics latest theories, methods, dynamic information are quite outdated.
Material basis.
National Information Infrastructure in full swing, so to break the limitations of information resources construction time and space for aerobics Information Resources of University network environment to provide a superior material conditions of production methods and advanced ways .
References [1] Almind T.C, Lngwersen P.: Journal of Documentation, Vol. 2 (1997) No 53, p.404-426 [2] Information on http://www.cindoc.csic.cs/Cybermetrics/ [3] Information on http://www.
Online since: June 2013
Authors: Xiu Fang Chen, Chao Ping Zhang
The Earth’s core is supposed to contain light elements such as Si, O, and S based on the comparison of seismic observations with the equation of state of the core materials, and the phase relations of the iron –light element systems at high pressures and temperatures [2].
As the density of the reaction products is larger than the density of the mantle, so it is not possible to rise to more than a few hundred kilometers.The Unreacted mantle material and uneven reaction products ultimately constitute the layer [13].These unevenness of chemical composition and thermal nonuniformity in layer are one of the possible reasons resulted in the seismic velocity anomalies and lateral heterogeneity.
Jeanloz: Science, Vol.251 (1991), p.1438-1443
Zhang: Journal of Wuhan Polytechnic University, Vol. 25(2006), p111-114
Xie: Advance In Earth Sciences, Vol. 11(1996), p.204-208.
As the density of the reaction products is larger than the density of the mantle, so it is not possible to rise to more than a few hundred kilometers.The Unreacted mantle material and uneven reaction products ultimately constitute the layer [13].These unevenness of chemical composition and thermal nonuniformity in layer are one of the possible reasons resulted in the seismic velocity anomalies and lateral heterogeneity.
Jeanloz: Science, Vol.251 (1991), p.1438-1443
Zhang: Journal of Wuhan Polytechnic University, Vol. 25(2006), p111-114
Xie: Advance In Earth Sciences, Vol. 11(1996), p.204-208.
Online since: July 2013
Authors: Zhang Jun, Tao Juan, Hong Mei Tang
Study of Crack Identifications in Coupling Beam Based on the EMI and ANN Techniques
Zhang Jun1, a, Tao Juan1,b ,Tang Hongmei2,c
1 School of Mechanical Engineering, Anhui University of Science and Technique,Huainan 232000,China
2 School of Foreign Languages, Anhui University of Science and Technique,Huainan 232000,China
azhj63@163.com, b 524879073@qq.com, ctanghongmeiemai@126.com
Keywords: EMI (Electro-Mechanical Impedance) technique; the ANN (Artificial Neural Network)technique; SHM (Structural health monitoring) ; crack identification
Abstract.
Table1 Structural parameters of aluminum beam and PZT material Length l/[mm] Width w/[mm] Thickness h/[mm] Density /[] Elastic modulus E/[Pa] Poisson ratio PZT 24 4 0.35 7450 aluminum beam 600 25 2 2690 7.0E10 0.345 Table2 Special parameter of PZT Density Dielectric / Compliance coefficients / Permittivity / Piezoelectric strain constant / [kg/m3] loss factor [] [] [] ρ tanδ 7.45 0.0185 12.9 19 -5.2 -5.7 -5.7 39 49.4 882.7 742.6 -123 270 420 In order to avoid the impact of the fixture, free beam was chose .Crack of the beam was opened by cutting machine.
On the modeling of piezoelectric wafer active sensor impedance analysis for structural health monitoring: Smart Structures and Materials 2006 [2] Zhang J, Qin G.
Nanjing Hangkong Hangtian Daxue Xuebao/Journal of Nanjing University of Aeronautics and Astronautics, 2010,42(4):418-422.
Table1 Structural parameters of aluminum beam and PZT material Length l/[mm] Width w/[mm] Thickness h/[mm] Density /[] Elastic modulus E/[Pa] Poisson ratio PZT 24 4 0.35 7450 aluminum beam 600 25 2 2690 7.0E10 0.345 Table2 Special parameter of PZT Density Dielectric / Compliance coefficients / Permittivity / Piezoelectric strain constant / [kg/m3] loss factor [] [] [] ρ tanδ 7.45 0.0185 12.9 19 -5.2 -5.7 -5.7 39 49.4 882.7 742.6 -123 270 420 In order to avoid the impact of the fixture, free beam was chose .Crack of the beam was opened by cutting machine.
On the modeling of piezoelectric wafer active sensor impedance analysis for structural health monitoring: Smart Structures and Materials 2006 [2] Zhang J, Qin G.
Nanjing Hangkong Hangtian Daxue Xuebao/Journal of Nanjing University of Aeronautics and Astronautics, 2010,42(4):418-422.
Online since: July 2019
Authors: Wen Fang Du, Yao Hua Wang, Kui Pu, Wen Hong Zhang, Mohamed N. Darwish, Jiang Liu, Jun Zeng, Rui Jin, Tao Zhu
Furthermore, the ultra-high voltage rating in combination with huge current capability requires much large chip size, which is still a bottleneck for SiC material to achieve acceptable defect level and effective cost.
The device edge termination ultilizes the high critical electric field of SiC material to enable the device breakdown voltage being able to reach the ideal value of Si with good process windows in terms of interface charge, deep trench profile and 3C-SiC quality, etc., since the breakdown spot can be easily moved from the edge to the active cell.
Thanks to the high critical electric field of SiC material, the impact ionization rate in the new termination structure is reduced significantly, and its breakdown location is moved away from the oxide/semiconductor interface into silicon bulk.
Acknowledgments This work is supported by the Science and Technology Project of State Grid Corporation of China (Grant No.
Isoird, et al., International Journal of Microelectronics and Computer Science, 6, (4), pp. 117-123 (2015)
The device edge termination ultilizes the high critical electric field of SiC material to enable the device breakdown voltage being able to reach the ideal value of Si with good process windows in terms of interface charge, deep trench profile and 3C-SiC quality, etc., since the breakdown spot can be easily moved from the edge to the active cell.
Thanks to the high critical electric field of SiC material, the impact ionization rate in the new termination structure is reduced significantly, and its breakdown location is moved away from the oxide/semiconductor interface into silicon bulk.
Acknowledgments This work is supported by the Science and Technology Project of State Grid Corporation of China (Grant No.
Isoird, et al., International Journal of Microelectronics and Computer Science, 6, (4), pp. 117-123 (2015)
Online since: July 2014
Authors: Shah Rajeshbhai Aditya, V. Ramsankar
=∴π×0.125×12=4.71 m2
Unshaded Area Aa= 6-0.125×12=70.5 m2
· Optical efficiency of a PTC often varies from 60% to 80% and is subjected to factors like errors due to manufacturing, misalignments, tracking errors, sloping errors, seasonal and daily variation of sun position and material properties.
Progress in energy and combustion science 30.3 (2004): 231-295
Journal of Zhejiang University SCIENCE A 9.3 (2008): 416-422
[7]Enermena Advanced CSP teaching materials Authors-Matthias Günther ,Michael Joemann ,Simon Csambor
Progress in energy and combustion science 30.3 (2004): 231-295
Journal of Zhejiang University SCIENCE A 9.3 (2008): 416-422
[7]Enermena Advanced CSP teaching materials Authors-Matthias Günther ,Michael Joemann ,Simon Csambor
Online since: August 2013
Authors: Zhao Ran Hou
The wavelet packet decomposition algorithm and reconstruction algorithm was given as:
(3)
(4)
The rolling bearing’s fault occupied large proportion presented as pitting, desquamate and crack of the material surface after long time running.
Acknowledgment It is a project supported by Foundation of office of education, He Nan Province (2011B470005, 12A470007) and Natural Science Foundation of He Nan Province (122102210416,112102210339).
JOURNAL OF VIBRATION AND SHOCK, 2012(18):153-156 [2] YANG Jianwei, CAI Guoqiang, YAO Dechen, etc.
CHINA RAILWAY SCIENCE, 2010, 31(6):68-73 [3] WANG WU.
Advanced Materials Research Vols.341-342(2012), pp.780-784 [8] WANG Wu, TANG San, ZHANG Yuan-min.
Acknowledgment It is a project supported by Foundation of office of education, He Nan Province (2011B470005, 12A470007) and Natural Science Foundation of He Nan Province (122102210416,112102210339).
JOURNAL OF VIBRATION AND SHOCK, 2012(18):153-156 [2] YANG Jianwei, CAI Guoqiang, YAO Dechen, etc.
CHINA RAILWAY SCIENCE, 2010, 31(6):68-73 [3] WANG WU.
Advanced Materials Research Vols.341-342(2012), pp.780-784 [8] WANG Wu, TANG San, ZHANG Yuan-min.