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Online since: December 2016
Authors: Jin Li Xu, Qiang He, Ding Jun Zhu
Lightweight Research on Aluminum Alloy Material
of Rear Axle Differential
Xu Jinli1, a, He Qiang1, b *, Zhu Dingjun1, c
1School of Mechanical and Electrical Engineering, Wuhan University of Technology, Wuhan, China
aXujl1996@163.com, b1246211929@qq.com, c837178823@qq.com
Keywords: Drive axle, Differential housing, Lightweight, FEA.
The Finite Element Calculation and Analysis of the Results of Differential Housing According to the CAD drawings provided by manufacturer and omitted some non-essential factors such as chamfers, half of the spline, the differential housing model is established by UG and shown in Fig. 5.
Define the material properties as Table 3.
According to the numerical calculation of free modes, the modal properties of the differential housing with cast iron or aluminum alloy are very similar which wouldn’t affect the performance of NVH.
Cheng, Mechanical Design Handbook, Chemical Industry Press, Beijing, 2007, 11
The Finite Element Calculation and Analysis of the Results of Differential Housing According to the CAD drawings provided by manufacturer and omitted some non-essential factors such as chamfers, half of the spline, the differential housing model is established by UG and shown in Fig. 5.
Define the material properties as Table 3.
According to the numerical calculation of free modes, the modal properties of the differential housing with cast iron or aluminum alloy are very similar which wouldn’t affect the performance of NVH.
Cheng, Mechanical Design Handbook, Chemical Industry Press, Beijing, 2007, 11
Online since: August 2015
Authors: Stanisław Mroziński, Michał Piotrowski
There are numerous factors that have an influence on the accumulation process including temperature or a loading program [4].
Mutual interactions of strains and stresses being accounted in the energy based approach description make it difficult to define unequivocally cyclic properties of steel P91 on the basis of the process of strain energy changes.
Conclusions On the basis of plastic strain energy ΔWpl analysis, in the function of the number of loading cycles, can be said that P91 steel is characterized by changes in cyclic properties.
It is difficult to identify the cyclic properties of the investigated steel on the basis of unequivocally energy change ΔWpl.
Influence of temperature change on fatigue properties of P91 steel, Materials Research Innovations, Volume 18 Issue S2 (may 2014), pp.504-508.
Mutual interactions of strains and stresses being accounted in the energy based approach description make it difficult to define unequivocally cyclic properties of steel P91 on the basis of the process of strain energy changes.
Conclusions On the basis of plastic strain energy ΔWpl analysis, in the function of the number of loading cycles, can be said that P91 steel is characterized by changes in cyclic properties.
It is difficult to identify the cyclic properties of the investigated steel on the basis of unequivocally energy change ΔWpl.
Influence of temperature change on fatigue properties of P91 steel, Materials Research Innovations, Volume 18 Issue S2 (may 2014), pp.504-508.
Online since: February 2022
Authors: Vladimir N. Malikov, Alexey V. Ishkov, Viktor V. Ivanaisky, Marina V. Polkovnikova
Due to differences in the values of heat input and properties of electrode materials, surfacing processes have a specific effect on the properties of coatings [5-15].
It was found that the structure of such an alloy directly affects its mechanical properties.
The influence of the obtained microstructure on the mechanical properties of the substance was determined.
Zhang, Effect of Cu addition on the microstructure and mechanical properties of AlCoCrFeNiTi0.5 solid-solution alloy, Journal of Alloys and Compounds. 466(1-2) (2008) 201-204
Liu, ffect of the overlapping factor on the microstructure and mechanical properties of pulsed Nd:YAG laser welded Ti6Al4V sheets, Materials Characterization. 93 (2014) 136-149
It was found that the structure of such an alloy directly affects its mechanical properties.
The influence of the obtained microstructure on the mechanical properties of the substance was determined.
Zhang, Effect of Cu addition on the microstructure and mechanical properties of AlCoCrFeNiTi0.5 solid-solution alloy, Journal of Alloys and Compounds. 466(1-2) (2008) 201-204
Liu, ffect of the overlapping factor on the microstructure and mechanical properties of pulsed Nd:YAG laser welded Ti6Al4V sheets, Materials Characterization. 93 (2014) 136-149
Online since: September 2014
Authors: Zhen Dong Fan, Yu Zhi Hu, Huai Zhi Su
This is because the material properties of the dam and dam abutment rock mechanical parameters will change with the passage of time.
The material properties of the dam and dam abutment rock mechanical parameters will change with the passage of time.
We take four pressure factors, expressed as , , and .
We take four temperature factors, expressed as , , and .
We take two aging factors, expressed as and .
The material properties of the dam and dam abutment rock mechanical parameters will change with the passage of time.
We take four pressure factors, expressed as , , and .
We take four temperature factors, expressed as , , and .
We take two aging factors, expressed as and .
Online since: October 2012
Authors: En Xiang Han, Jiang Li, Wei Cong
The band gap of anatase TiO2 is 3.2eV, and the anatase titanium dioxide has excellent resistance to light corrosion and photoelectrochemical properties, so it is widely used in solar cells, photocatalysis and photolysis of water into hydrogen and other fields.
In this article, TiO2 nanotubes are prepared by the method of anodic oxidation[4~6] .Annealing temperature and other factors on the microstructure and properties of nanotubes will be researched, and then nanotubes will be prepared for solar cell which photoelectric conversion properties will be studied. eventually, the photoelectric conversion of DSSC is 1.53%, open circuit voltage reached 0.734, short -circuit current is 4.52mA, fill factor is 0.460. 2 Experiments 2.1 Preparation and characterization of TiO2 nanotubes Take titanium foil with the thickness of about 0.25mm to be anodized.
Use a syringe to apply a small amount of electrolyte to inject into the holes of the back electrode, and then seal the holes with transparent plastic. 2.3 The measurements of optical and electrical properties Use 100 W xenon lamp as the sunlight simulator which incident light intensity is 100 mW ·cm-2, then measure it at room temperature, get V-I curve, record short-circuit current and open circuit voltage, which are used to calculate the fill factor and photoelectric conversion efficiency with formula.
The film is too thin will limits the absorption of the dye adsorption and photo - carrier, which will affect the photoelectric conversion efficiency of DSSC cells.
Grimes, Visible light photo electrochemical and water-photo electrolysis properties of titanium nanotube arrays," Journal of Photochemistry and Photobiology a-Chemistry, vol.178, 2006,pp. 8-15
In this article, TiO2 nanotubes are prepared by the method of anodic oxidation[4~6] .Annealing temperature and other factors on the microstructure and properties of nanotubes will be researched, and then nanotubes will be prepared for solar cell which photoelectric conversion properties will be studied. eventually, the photoelectric conversion of DSSC is 1.53%, open circuit voltage reached 0.734, short -circuit current is 4.52mA, fill factor is 0.460. 2 Experiments 2.1 Preparation and characterization of TiO2 nanotubes Take titanium foil with the thickness of about 0.25mm to be anodized.
Use a syringe to apply a small amount of electrolyte to inject into the holes of the back electrode, and then seal the holes with transparent plastic. 2.3 The measurements of optical and electrical properties Use 100 W xenon lamp as the sunlight simulator which incident light intensity is 100 mW ·cm-2, then measure it at room temperature, get V-I curve, record short-circuit current and open circuit voltage, which are used to calculate the fill factor and photoelectric conversion efficiency with formula.
The film is too thin will limits the absorption of the dye adsorption and photo - carrier, which will affect the photoelectric conversion efficiency of DSSC cells.
Grimes, Visible light photo electrochemical and water-photo electrolysis properties of titanium nanotube arrays," Journal of Photochemistry and Photobiology a-Chemistry, vol.178, 2006,pp. 8-15
Online since: July 2013
Authors: Zuo Cheng Wang, Cai Nian Jing, Fu Tao Han, Xiao Min Liu, Shao Yan Zhang, Jie Su
Considering the effect of lubricating condition on properties, a hot rolling lubricant was used in the experiment.
The annealed Ti-IF steel sheets were cut and machined into the tensile specimens and mechanical properties of specimens were all measured through uniaxial tensile tests.
Results and Discussion Mechanical properties of ferritic hot-rolled Ti-IF steel sheets Table 2 shows the mechanical properties of experimental Ti-IF steel sheets and the corresponding ferritic hot-rolling parameters.
Table 2 Mechanical properties of Ti-IF steel sheets and corresponding ferritic hot-rolling parameters Sample No.
Studies [5-6] had confirmed that texture was the main factor that affected the r-value and deep drawability of IF steel sheets.
The annealed Ti-IF steel sheets were cut and machined into the tensile specimens and mechanical properties of specimens were all measured through uniaxial tensile tests.
Results and Discussion Mechanical properties of ferritic hot-rolled Ti-IF steel sheets Table 2 shows the mechanical properties of experimental Ti-IF steel sheets and the corresponding ferritic hot-rolling parameters.
Table 2 Mechanical properties of Ti-IF steel sheets and corresponding ferritic hot-rolling parameters Sample No.
Studies [5-6] had confirmed that texture was the main factor that affected the r-value and deep drawability of IF steel sheets.
Inertia Parameters Identification of Motor Assembly for Electric Vehicles Based on Modal Test Method
Online since: December 2013
Authors: Peng Yu, Tong Zhang, Rong Guo, Li Zhao He
Therefore, proper points coordinates will minimize matrix condition number and , which will affect the inertia parameters test error directly.
The excitation and response points coordinates accuracy are found to be the main influence factors based on the error analysis using matrix condition number.
[2] R.A.B.Almeida, A.P.V.Urgueira and N.M.M.Maia, Identification of rigid body properties from vibration measurements, Journal of Sound and Vibration, 2007, 299, 884-899
Schedlinski, A survey of current inertia parameter identification methods, Mechanical Systems and Signal Processing, 2001, 15(1), 189-211
Response and excitation points selection for accurate rigid body inertia properties identification, Mechanical Systems and Signal Processing, 1999, 13(4), 571-592
The excitation and response points coordinates accuracy are found to be the main influence factors based on the error analysis using matrix condition number.
[2] R.A.B.Almeida, A.P.V.Urgueira and N.M.M.Maia, Identification of rigid body properties from vibration measurements, Journal of Sound and Vibration, 2007, 299, 884-899
Schedlinski, A survey of current inertia parameter identification methods, Mechanical Systems and Signal Processing, 2001, 15(1), 189-211
Response and excitation points selection for accurate rigid body inertia properties identification, Mechanical Systems and Signal Processing, 1999, 13(4), 571-592
Online since: May 2014
Authors: Asnul Hadi Ahmad, Dermot Brabazon, Sumsun Naher
INJECTION TESTS AND EFFECT ON MICROSTRUCTURE AND PROPERTIES OF ALUMINIUM 7075 DIRECT THERMAL METHOD FEEDSTOCK BILLETS
A.H.
This was due to solid fraction within material that was found to be one of the foremost factors in determining the success of SSM processing [10].
The transfer time affects the fraction solid within the material.
[3] Brabazon D, Browne DJ, Carr AJ, Mechanical stir casting of aluminium alloys from the mushy state: process, microstructure and mechanical properties.
[13] Liu D, Atkinson HV, Kapranos P, Jirattiticharoean W, Jones H, Microstructural evolution and tensile mechanical properties of thixoformed high performance aluminium alloys.
This was due to solid fraction within material that was found to be one of the foremost factors in determining the success of SSM processing [10].
The transfer time affects the fraction solid within the material.
[3] Brabazon D, Browne DJ, Carr AJ, Mechanical stir casting of aluminium alloys from the mushy state: process, microstructure and mechanical properties.
[13] Liu D, Atkinson HV, Kapranos P, Jirattiticharoean W, Jones H, Microstructural evolution and tensile mechanical properties of thixoformed high performance aluminium alloys.
Online since: September 2011
Authors: Shu Bo Xu, Cai Nian Jing, Ke Ke Sun, Yang Xi
China
2Department of Mechanical Engineering Shandong FIN CNC Machine CO.
The dynamic characteristics can be affected on the outer wall thickness, inner wall thickness and rib thickness of the beam.
(3)Considering the maximum deflection of beam structure displacement, the actual working conditions and manufacturing cost targets, welding and other factors, without reducing the overall performance of machine tools on the basis of the structural beams of the machine tool. 6.Acknowledgements This work was financially supported by Foundation of Shandong Province (2007BS05004) and China Postdoctoral Science Foundation funded project (20100471513).
Partick, “Optimal synthesis of compliant mechanisms using subdivision and commercial FEA” .American Society of Mechanical Engineers.
[3] T.P.Yeh, J.M.Vance, “Applying virtual Reality Techniques to Sensitivity-Based Structural Shape Design”, Journal of Mechanical Design[J].Transaction of the ASME,1998,12:pp44~45
The dynamic characteristics can be affected on the outer wall thickness, inner wall thickness and rib thickness of the beam.
(3)Considering the maximum deflection of beam structure displacement, the actual working conditions and manufacturing cost targets, welding and other factors, without reducing the overall performance of machine tools on the basis of the structural beams of the machine tool. 6.Acknowledgements This work was financially supported by Foundation of Shandong Province (2007BS05004) and China Postdoctoral Science Foundation funded project (20100471513).
Partick, “Optimal synthesis of compliant mechanisms using subdivision and commercial FEA” .American Society of Mechanical Engineers.
[3] T.P.Yeh, J.M.Vance, “Applying virtual Reality Techniques to Sensitivity-Based Structural Shape Design”, Journal of Mechanical Design[J].Transaction of the ASME,1998,12:pp44~45
Online since: March 2007
Authors: Hermann Riedel, Christophe Poizat, Tom Walde, Rudolf Kawalla, C. Schmidt, A. Prakash
During rolling the typical basal texture develops
which is disadvantageous for subsequent processing and leads to anisotropic properties.
After compression tests the specimens' shape was more oval than round (Fig. 1) which is an indication for anisotropic properties already after caliber rolling.
Furthermore it is obvious that the formation of basal texture in magnesium is influenced by several independent factors.
This is to be achieved by varying factors that influence deformation in order to impair the activation of the favored basal gliding mechanisms and to influence twinning with the objective of achieving a reduced basal texture.
The entire model [9] calculates the texture development as a result of deformation and recrystallization, and the resulting anisotropic plastic properties.
After compression tests the specimens' shape was more oval than round (Fig. 1) which is an indication for anisotropic properties already after caliber rolling.
Furthermore it is obvious that the formation of basal texture in magnesium is influenced by several independent factors.
This is to be achieved by varying factors that influence deformation in order to impair the activation of the favored basal gliding mechanisms and to influence twinning with the objective of achieving a reduced basal texture.
The entire model [9] calculates the texture development as a result of deformation and recrystallization, and the resulting anisotropic plastic properties.