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Online since: November 2012
Authors: Zhi Qiang Guo, Jing Chao Zou, Wei Hong Chen, Lian Gwen Wang
FINITE ELEMENT ANALYSIS OF Motion Gesture FOR FOUR-LEGGED WALKING ROBOT MiniQuad-1
Jingchao Zou1, Liangwen Wang2, a, Zhi qiang Guo2, Weihong Chen2
1College of Engineering, Huanghe Science and Technology College, Zhengzhou, Henan,
2Department of Electromechanical Science and Engineering, Zhengzhou University of Light Industry, Zhengzhou, Henan, 450002, China
aw_liangwen@sina.com
Key words: Four-legged walking robot; configuration; kinematic error; deformation; Finite Element Analysis
Abstract: When walking robot MiniQuad-1 moves, the motion error is larger.
After the material attribute is defined and Finite Element Mesh is generated, the results is shown in figure 4.
(Natural Science Edition),Vo1.39No.5 May 2011 2011,39(5):18-22
Journal of machine design2010,(11)38-42.
After the material attribute is defined and Finite Element Mesh is generated, the results is shown in figure 4.
(Natural Science Edition),Vo1.39No.5 May 2011 2011,39(5):18-22
Journal of machine design2010,(11)38-42.
Online since: February 2014
Authors: Vladimir Luzin, Kevin Spencer, Michael Saleh
Evaluation of the residual stress in the cold spray technique using Smooth Particle Hyrodynamics modelling and neutron diffraction
Michael Saleh1,a, Vladimir Luzin2,b, Kevin Spencer3,c
1 Institute of Materials Engineering, Australian Nuclear Science and Technology Organisation.
Australia 2 The Bragg Institute, Australian Nuclear Science and Technology Organisation. , Locked Bag 2001, Kirrawee DC, NSW, 2232.
Introduction Cold spray (CS) is a material deposition technique where metal powder particles are accelerated up to speeds of 500-1000m/s by a stream of carrier gas, and the materials are subsequently bonded to the surface of the metallic substrate upon impact.
The noticeable peak broadening in the materials of coating in comparison with material of substrate suggest most probably accumulation of some significant microstress in cold spray particles after deposition.
Since the model constants, together with elastic properties of materials, fully determine the stress state of the elastic system, this can demonstrates the model’s ability to consider both geometric and material factors.
Australia 2 The Bragg Institute, Australian Nuclear Science and Technology Organisation. , Locked Bag 2001, Kirrawee DC, NSW, 2232.
Introduction Cold spray (CS) is a material deposition technique where metal powder particles are accelerated up to speeds of 500-1000m/s by a stream of carrier gas, and the materials are subsequently bonded to the surface of the metallic substrate upon impact.
The noticeable peak broadening in the materials of coating in comparison with material of substrate suggest most probably accumulation of some significant microstress in cold spray particles after deposition.
Since the model constants, together with elastic properties of materials, fully determine the stress state of the elastic system, this can demonstrates the model’s ability to consider both geometric and material factors.
Online since: November 2010
Authors: Hong Bin Qi, Hai Du, Cong Cong Yin
Experimental Research on Adsorption of Cadmium with
Synthetic Tobermorite from Wastewater
Hongbin Qi 1,2,a*, Hai Du2,b and Congcong Yin2,c
1 National Laboratory of Mineral Materials, China University of Geosciences, 100083, Beijing, PR China
2 School of Materials Science and Technology, China University of Geosciences, 100083, Beijing, PR China
*Corresponding author: Haidian District, 29 Xueyuan Road, Beijing 100083, PR China.
Introduction Tobemorite is a hydrated calcium silicate mineral material.
According to related reports, tobemorite can absorb alkali metals like K+, Na+, Ba2+, Cs+, Rb+, Sr2+, alkaline-earth metal and heavy metal ions like Pb2+, Cd2+, Zn2+ etc [4-7]. 1 Materials and Methods 1.1 Reagents and Apparatus.
Atomic absorption spectrophotometer, AA-6300; pH meter, PHS-3C; Analytical balance, AR1140; Electric constant temperature water bath, DK-S26; constant temperature water bath oscillator, HZS-H. 1.2 Experimental Materials.
Brassington: Materials Research Bulletin, Vol.38 (2003), p.485-497 [7] H Katsumata, S Kaneco and K Inomata: Journal of Environmental Management, Vol.69 (2003), p.187-191 [8] M.
Introduction Tobemorite is a hydrated calcium silicate mineral material.
According to related reports, tobemorite can absorb alkali metals like K+, Na+, Ba2+, Cs+, Rb+, Sr2+, alkaline-earth metal and heavy metal ions like Pb2+, Cd2+, Zn2+ etc [4-7]. 1 Materials and Methods 1.1 Reagents and Apparatus.
Atomic absorption spectrophotometer, AA-6300; pH meter, PHS-3C; Analytical balance, AR1140; Electric constant temperature water bath, DK-S26; constant temperature water bath oscillator, HZS-H. 1.2 Experimental Materials.
Brassington: Materials Research Bulletin, Vol.38 (2003), p.485-497 [7] H Katsumata, S Kaneco and K Inomata: Journal of Environmental Management, Vol.69 (2003), p.187-191 [8] M.
Online since: October 2013
Authors: Jing Chao Jia, Shu Yun Ding, Qing Tao Bi
Especially in the absence of a local clay core wall material, and the dam site area was distributed of thicker covering layer, it tends to be the best candidate for the dam type.
When modeling, the finite element division of the dam body was based on the structure and the material, mesh refinement to key positions.
Duncan E-B model [5], nonlinear strength model, was used for the constitutive relationship of rock-fill material and core wall material in finite element algorithm.
Material model parameters of each partition are shown in Table 1. linear elastic material model was used for diaphragm wall of dam foundation and concrete footing, the parameter values are shown in Table 2.
Lei, Calculation and analysis of dynamic strength of 350 m high core rockfill dam on deep overburden foundation, Journal of China Three Gorges University (Natural Sciences), 2 (2009) 36-39
When modeling, the finite element division of the dam body was based on the structure and the material, mesh refinement to key positions.
Duncan E-B model [5], nonlinear strength model, was used for the constitutive relationship of rock-fill material and core wall material in finite element algorithm.
Material model parameters of each partition are shown in Table 1. linear elastic material model was used for diaphragm wall of dam foundation and concrete footing, the parameter values are shown in Table 2.
Lei, Calculation and analysis of dynamic strength of 350 m high core rockfill dam on deep overburden foundation, Journal of China Three Gorges University (Natural Sciences), 2 (2009) 36-39
Online since: December 2005
Authors: Masami Futamata, Xiaohui Gai, Toyokazu Mizumoto, Kimio Nakanishi
Also, there is flexibility in materials, shape and size of the
substrates.
With materials development tending to change from bulk materials to coating materials, plasma coating is being widely applied to various fields and new development is still expected.
To use solutions as spraying materials may be effective for the equalization of the powder particles in the spraying process, which is indispensable for the advancement of the plasma coating.
Sasaki: Journal of High Temperature society, Vol. 28, Supplement (2002), p. 253-257
Kuramoto: Plasma Applying Science, Vol. 8 (2000), p. 73-79
With materials development tending to change from bulk materials to coating materials, plasma coating is being widely applied to various fields and new development is still expected.
To use solutions as spraying materials may be effective for the equalization of the powder particles in the spraying process, which is indispensable for the advancement of the plasma coating.
Sasaki: Journal of High Temperature society, Vol. 28, Supplement (2002), p. 253-257
Kuramoto: Plasma Applying Science, Vol. 8 (2000), p. 73-79
Online since: April 2014
Authors: Elena A. Gan’shina, Yurii P. Sukhorukov, Vladimir D. Bessonov, Andrey R. Kaul, Andrei Telegin
Introduction
The magnetorefractive effect (MRE) is a magnetic field-induced change in the reflection (magnetoreflection mode) and transmission (magnetotransmission mode) of unpolarized light in magnetic materials [1].
Conclusions Complex investigations of the optical, transport, magneto-optical and magnetotransport properties of the La1-хKхMnO3 films (хK=0.05, 0.10, 0.15 and 0.18) have shown that these films are promising magneto-optical materials with large values of Kerr and magnetorefractive effects, and large thermal coefficient of resistivity at temperatures close to the room one.
Telegin, Magnetorefractive Effect in Magnetoresistive Materials, in: M.
Baryshev (Eds.), Magnetophotonics From Theory to Application, Springer Series in Materials Science, V. 18, Springer-Verlag, Berlin, Heidelberg, New York, Dordrecht, London, 2013, pp. 107-133
Vinogradov, Evolution of magnetooptical and transport properties of La1-xAgxMnO3 films depending on silver concentration, Journal of Experimental And Theoretical Physics 104 (2007) 569-576
Conclusions Complex investigations of the optical, transport, magneto-optical and magnetotransport properties of the La1-хKхMnO3 films (хK=0.05, 0.10, 0.15 and 0.18) have shown that these films are promising magneto-optical materials with large values of Kerr and magnetorefractive effects, and large thermal coefficient of resistivity at temperatures close to the room one.
Telegin, Magnetorefractive Effect in Magnetoresistive Materials, in: M.
Baryshev (Eds.), Magnetophotonics From Theory to Application, Springer Series in Materials Science, V. 18, Springer-Verlag, Berlin, Heidelberg, New York, Dordrecht, London, 2013, pp. 107-133
Vinogradov, Evolution of magnetooptical and transport properties of La1-xAgxMnO3 films depending on silver concentration, Journal of Experimental And Theoretical Physics 104 (2007) 569-576
Online since: November 2011
Authors: Ren Zhi Liu, Kuai She Wang, Yuan Jun Sun
Grain size of polycrystalline material made by which is quite fine and homogeneous.
Experiment set-up The experiment material was currently Mo powder whose grain size was 3.5um.
Acknowledgements This work was financially supported by the Shaanxi ‘13115’ Science and Technology Innovation Project (project number: 2008ZDKG-41) and the experiment was carried out under the help of JDC Technology Centre.
Chandramouli, Materials and Design [J], Vol.30 (2009), p.3444 [7] D.
Nishikawa, Journal of the European Ceramic Society [J], Vol. 22 (2002), p. 1113
Experiment set-up The experiment material was currently Mo powder whose grain size was 3.5um.
Acknowledgements This work was financially supported by the Shaanxi ‘13115’ Science and Technology Innovation Project (project number: 2008ZDKG-41) and the experiment was carried out under the help of JDC Technology Centre.
Chandramouli, Materials and Design [J], Vol.30 (2009), p.3444 [7] D.
Nishikawa, Journal of the European Ceramic Society [J], Vol. 22 (2002), p. 1113
Online since: April 2011
Authors: Tong Hua Fan, Yong Ming Wang, Xiao Liu Yu
Fig.3 Finite element model of rolling bearing
Definition of Material Attributes.
From rolling bearing structure, type and materials etc, some measures were pointed out as follows.
Rolling Bearing Material Lectotype Design.
For the above finite element analysis of rolling bearing, in order to prolong the rolling bearing life and increase material utilization, the rolling bearing materials with high compressive strength should be selected such as GCr15, GCr15SiMo and so on.
Journal of Wuhan University of Technology, Vol.32, 2008(5), p.822-825
From rolling bearing structure, type and materials etc, some measures were pointed out as follows.
Rolling Bearing Material Lectotype Design.
For the above finite element analysis of rolling bearing, in order to prolong the rolling bearing life and increase material utilization, the rolling bearing materials with high compressive strength should be selected such as GCr15, GCr15SiMo and so on.
Journal of Wuhan University of Technology, Vol.32, 2008(5), p.822-825
Online since: October 2013
Authors: Ai Hua Zhang, Chang Zhu Li, Zhi Hong Xiao, Wei Wei Jiang, Yang Li, Hong Qin Zhang, Pei Wang Li
In this study, refined Cornus wisoniana oil is as raw material.
Materials and methods Materials.
The specific steps of Cornus wisoniana oil catalytic cracking reaction of hydrocarbon fuel-rich preparation are as follows: A certain quality materials is accurately added straight three glass reactor, Cornus wisoniana oil and catalyst(1.5% for the amount of catalyst) was mixed ,stir well and sealed with gasser.
Chinese Journal of Bioprocess Engineering, 2005(3): 42-44.
Hunan Forestry Science & Technology, 2005, 32(6): 6-8.
Materials and methods Materials.
The specific steps of Cornus wisoniana oil catalytic cracking reaction of hydrocarbon fuel-rich preparation are as follows: A certain quality materials is accurately added straight three glass reactor, Cornus wisoniana oil and catalyst(1.5% for the amount of catalyst) was mixed ,stir well and sealed with gasser.
Chinese Journal of Bioprocess Engineering, 2005(3): 42-44.
Hunan Forestry Science & Technology, 2005, 32(6): 6-8.
Online since: July 2011
Authors: Shun Ai He, Feng Yuan Yang, Zhongyuan Lu, Jun Li
Research of foam phosphogypsum with low bulk density
Fengyuan Yang1, a, Zhongyuan Lu1,b , Shun’ai He1,c, Jun Li1,d
1State Key Laboratory Cultivation Base for Nonmetal Composites and Functional Materials, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, China
ahorizonyfy@139.com, bluy@swust.edu.cn, cheshunai@126.com, dlijun@swust.edu.cn
Keywords: Foam phosphogypsum, Low bulk density, Strength
Abstract.
Introduction Foam concrete has been widely used in thermal insulating, stuffing bulking and energy absorbing materials because of its special properties of thermal insulation, low weight and strength.
Materials and Experiments Materials.
[5] Yuping Luo: Building Material and Application.
[6] Shuheng Qiu, Zicheng Li and Yulan Lu et al.: Journal of Guangxi University (Nat. & Sci.
Introduction Foam concrete has been widely used in thermal insulating, stuffing bulking and energy absorbing materials because of its special properties of thermal insulation, low weight and strength.
Materials and Experiments Materials.
[5] Yuping Luo: Building Material and Application.
[6] Shuheng Qiu, Zicheng Li and Yulan Lu et al.: Journal of Guangxi University (Nat. & Sci.