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Online since: October 2014
Authors: Emilian Moşnegutu, Valentin Nedeff, Ovidiu Bontaş, Narcis Barsan, Claudia Tomozei, Dana Chiţimus, Mirela Panaite-Lehadus
To separate such a mixture its use different methods, which are chosen taking into account the nature of the system and its properties (phase discontinuous nature, size, temperature etc.) [1,2,3].
The process of sorting mixtures of particles per sieves is influenced by many factors, of which the most important are [4,15,16,17,18,19,20,21]: a) screen: sieve loading; sieve size; size of the sieve holes in the screen; kinematical regime (of movement) of the sieve; b) for the material which will be sorted: the granular component of the material to be sorted; the difference between the size of the particles to be sorted; the nature of the particles to be sorted; the moisture of the particles etc.
Conclusion The separation of solid particles after size is a complex process influenced by several factors, which depend of the particles and characteristics of equipment used.
Kee Liu, Analysis of vibration power flow from a vibrating machinery to a floating elastic panel, Mechanical Systems and Signal Processing 21:1 2007 389–404
Tsakalakis, Some basic factors affecting scree performance in horizontal vibrating screens, The European Journal of Mineral Processing and Environmental Protection 1 (2001) 42 – 54
The process of sorting mixtures of particles per sieves is influenced by many factors, of which the most important are [4,15,16,17,18,19,20,21]: a) screen: sieve loading; sieve size; size of the sieve holes in the screen; kinematical regime (of movement) of the sieve; b) for the material which will be sorted: the granular component of the material to be sorted; the difference between the size of the particles to be sorted; the nature of the particles to be sorted; the moisture of the particles etc.
Conclusion The separation of solid particles after size is a complex process influenced by several factors, which depend of the particles and characteristics of equipment used.
Kee Liu, Analysis of vibration power flow from a vibrating machinery to a floating elastic panel, Mechanical Systems and Signal Processing 21:1 2007 389–404
Tsakalakis, Some basic factors affecting scree performance in horizontal vibrating screens, The European Journal of Mineral Processing and Environmental Protection 1 (2001) 42 – 54
Online since: May 2012
Authors: Chang Dong Li, Hui Ming Tang, Xin Li Hu, Ren Xian Sun
Huangtupo landslide is a typical large and complex landslide in the Three Gorges Reservoir Region, and its stability can not only affect the people’s lives and property, but also concern the safety of shipping on the Yangtze River.
Numerical simulation Mechanical Model According to geographical analysis, the foreside of Riverside slumping mass I# suffers from great impact of reservoir water level fluctuations.
Therefore, the profile of Riverside slumping mass I# was selected to establish two-dimensional geo-mechanical model and conduct numerical simulation analysis.
The reason is that, the pressure of reservoir water on slide body and pore water pressure within the slide body have been taken into account during the calculation process, and the two factors have jointly affected the calculated results.
During the changing process of reservoir water level, the saturation region of landslide is greatly affected by the changing water level, while the unsaturated region is less affected by the changing water level.
Numerical simulation Mechanical Model According to geographical analysis, the foreside of Riverside slumping mass I# suffers from great impact of reservoir water level fluctuations.
Therefore, the profile of Riverside slumping mass I# was selected to establish two-dimensional geo-mechanical model and conduct numerical simulation analysis.
The reason is that, the pressure of reservoir water on slide body and pore water pressure within the slide body have been taken into account during the calculation process, and the two factors have jointly affected the calculated results.
During the changing process of reservoir water level, the saturation region of landslide is greatly affected by the changing water level, while the unsaturated region is less affected by the changing water level.
Online since: July 2017
Authors: Zhen Ying Xu, Yun Wang, Li Yu Chen, Xia Ming Yang, Yan Zhao, Xue Peng Wang
The molten polymer flow behavior directly influences the final properties of the part.
Fig. 1 Three-dimensional model of plastic parts Fig. 2 The finite element model Injection molding parameters and plastic material properties.
The material properties are listed in Table 1, and the rheological properties of different temperatures, pressure-volume-temperature (PVT) performance curve are shown in Fig.3 and Fig.4.
In the OED, it is assumed that every single factor is independent of all the other orthogonal arrays factors, as given in Table 2.
The range value of each factor and process parameters affecting the comprehensive indices in the simulation experiment is shown in Table 4.
Fig. 1 Three-dimensional model of plastic parts Fig. 2 The finite element model Injection molding parameters and plastic material properties.
The material properties are listed in Table 1, and the rheological properties of different temperatures, pressure-volume-temperature (PVT) performance curve are shown in Fig.3 and Fig.4.
In the OED, it is assumed that every single factor is independent of all the other orthogonal arrays factors, as given in Table 2.
The range value of each factor and process parameters affecting the comprehensive indices in the simulation experiment is shown in Table 4.
Features of the Metal Structure Formation in Cryogenic Equipment during Long-Term Operation at 4.2 K
Online since: July 2017
Authors: Alyona Salokeeva, Sergey Ermakov, Boris S. Ermakov
The mechanical properties of austenitic steel depending on the nickel concentration.
Mechanical properties Т [К] Melt No.
Mechanical properties of steel samples with 11% of nickel tested 1), 2) at 4.2 K; and 3), 4) at 293 K; А, B and C are zones of abnormal change of properties.
The embrittlement factors begin to manifest already in the time range of welding heating, and with increased nickel content the intensity of irradiation increases.
Mechanical properties of materials under low temperatures (in Russian). – Moscow: Mir, 1974. – 373 p
Mechanical properties Т [К] Melt No.
Mechanical properties of steel samples with 11% of nickel tested 1), 2) at 4.2 K; and 3), 4) at 293 K; А, B and C are zones of abnormal change of properties.
The embrittlement factors begin to manifest already in the time range of welding heating, and with increased nickel content the intensity of irradiation increases.
Mechanical properties of materials under low temperatures (in Russian). – Moscow: Mir, 1974. – 373 p
Online since: June 2013
Authors: Fei Xiang Wei, Yang Song, Xiao Xu Ma, Ying Qian
Study on Reasons of the Falling of the Overhead Line Based on Fault Tree Analysis
WEI Fei-xiang1,a, SONG Yang2,b, MA Xiao-xu1,c, QIAN Ying1,d,
1College of Electrical Engineering & New Energy, China Three Gorges University, Yichang , Hubei, China
2Shandong Rizhao Power Supply Company Rizhao, Shandong, China
aweifeixiang@126.com, bsy2006107103@163.com, crayonma@163.com, d345446702@qq.com
Keywords: overhead Line Falling, FTA, reliability
Abstract: The transmission line is an important part of the power system, its reliability will directly affect the reliability of the power system.
As an important part of the power system, the reliability of the transmission line will directly affect the operation of the power system.
(3) Insufficient of electrical and mechanical properties of the insulator play an important role in the overhead line falling event. 4 Summary Many aspects influence the overhead lines drop, the FTA method can more accurately evaluate the contribution of every factors.
The results show that the overhead lines running status influenced not only by the fittings and insulators mechanical strength, but also by the insulator electrical performance, the operating and lightning over-voltage.
As an important part of the power system, the reliability of the transmission line will directly affect the operation of the power system.
(3) Insufficient of electrical and mechanical properties of the insulator play an important role in the overhead line falling event. 4 Summary Many aspects influence the overhead lines drop, the FTA method can more accurately evaluate the contribution of every factors.
The results show that the overhead lines running status influenced not only by the fittings and insulators mechanical strength, but also by the insulator electrical performance, the operating and lightning over-voltage.
Online since: October 2014
Authors: Hong Xin You, Shuang Zhang, Yang Guo, Run Jie Liu
Abstract.The yield strength of liner material affecting the performance of CNG-II composite cylinder was studied by finite element method (FEM) analysis.
Fig.1 Model Geometrical Dimension Material Properties The mechanical parameters of liner and fiber are shown in table 1 and table 2.
The Influence of Liner Yield Strength on Fatigue Life The stress amplitude of liner is the uppermost factor that affects the fatigue life of CNG-II composite cylinder.
In addition, the high-strength property of winding layer fiber could not been fully utilized as the yield strength of liner increasing.
The Application of ANSYS in mechanical and chemical equipments[M].
Fig.1 Model Geometrical Dimension Material Properties The mechanical parameters of liner and fiber are shown in table 1 and table 2.
The Influence of Liner Yield Strength on Fatigue Life The stress amplitude of liner is the uppermost factor that affects the fatigue life of CNG-II composite cylinder.
In addition, the high-strength property of winding layer fiber could not been fully utilized as the yield strength of liner increasing.
The Application of ANSYS in mechanical and chemical equipments[M].
Online since: August 2013
Authors: Pongdhorn Sea-Oui, Chomsri Siriwong, Chakrit Sirisinha
Processability of compounds and mechanical properties of vulcanizates were then investigated, and compared for the effectiveness of silane coupling agents used in property enhancement.
The results reveal that the silane type affects not only the compound processability, but also the vulcanizate mechanical properties.
Moreover, the amino and mercapto groups of APTES and TESPT, respectively, significantly enhance the mechanical properties of CR vulcanizate more effectively than the chloro groups of CPTES.
Table 3 illustrates the mechanical properties of CR vulcanizates filled with PSi, whose surfaces are modified with various SCAs.
The combined enhancement in magnitudes of rubber-filler interaction and filler dispersion is responsible for improvement in mechanical properties.
The results reveal that the silane type affects not only the compound processability, but also the vulcanizate mechanical properties.
Moreover, the amino and mercapto groups of APTES and TESPT, respectively, significantly enhance the mechanical properties of CR vulcanizate more effectively than the chloro groups of CPTES.
Table 3 illustrates the mechanical properties of CR vulcanizates filled with PSi, whose surfaces are modified with various SCAs.
The combined enhancement in magnitudes of rubber-filler interaction and filler dispersion is responsible for improvement in mechanical properties.
Online since: July 2015
Authors: Michael Koch, Christian Fiebig
Mechanical properties of the sandwich composite are only marginally affected.
These results will influence the calculation of the mechanical properties.
The mechanical properties of the foam are highly density dependent.
The calculation of the mechanical properties of the sandwich composite is improved.
The mechanical properties of the CFRP and the aluminum foam are summarized in table 1.
These results will influence the calculation of the mechanical properties.
The mechanical properties of the foam are highly density dependent.
The calculation of the mechanical properties of the sandwich composite is improved.
The mechanical properties of the CFRP and the aluminum foam are summarized in table 1.
Online since: September 2007
Authors: Zhi Hao Jin, Hong Jie Wang, Guan Jun Qiao, Gui Wu Liu
Some process factors were characterized and analyzed, which include
temperature, holding time and heating and cooling rate in ceramic metallization process.
The main factors affecting joint strength include metallizing formula, technologies of the three steps, and the characters of ceramic and metal component.
It is well known that all the factors correlate closely with interlayer residual thermal stress in the joint, and the residual stress directly influences joint strength.
Table 1 lists compositions and properties of the alumina ceramic.
Compositions and properties of the alumina ceramic Experimental Process.
The main factors affecting joint strength include metallizing formula, technologies of the three steps, and the characters of ceramic and metal component.
It is well known that all the factors correlate closely with interlayer residual thermal stress in the joint, and the residual stress directly influences joint strength.
Table 1 lists compositions and properties of the alumina ceramic.
Compositions and properties of the alumina ceramic Experimental Process.
Online since: May 2024
Authors: Mohammed Abdulkareem Adisa, Abdulqudus Adeyanju Adegun, Samson Olalekan Odeyemi
Soğanci et al. [6] assessed how marble dust (MD) and granulated blast furnace slag (GBFS) affect the geotechnical properties of low and high-plasticity clays.
Additionally, the inclusion of 4 to 10% cement significantly enhances the mechanical properties of unfired earth bricks compared to those lacking cement [15].
Effect of Stabilization Percentages on Consistency Limits The results in Fig. 5 revealed that the lime stabilization reduced both the plastic limit and liquid limit of the clay, therefore, affecting the plasticity index.
Miqueleiz, “Estimated and real durability of unfired clay bricks: Determining factors and representativeness of the laboratory tests,” Constr Build Mater, 131, (2017), 600–605, doi: 10.1016/j.conbuildmat.2016.11.107
Sepúlveda, “Assessment of mechanical, thermal, mineral and physical properties of fired clay brick made by mixing kaolinitic red clay and paper pulp residues,” Appl Clay Sci, 198 (105847), (2020), doi: 10.1016/j.clay.2020.105847
Additionally, the inclusion of 4 to 10% cement significantly enhances the mechanical properties of unfired earth bricks compared to those lacking cement [15].
Effect of Stabilization Percentages on Consistency Limits The results in Fig. 5 revealed that the lime stabilization reduced both the plastic limit and liquid limit of the clay, therefore, affecting the plasticity index.
Miqueleiz, “Estimated and real durability of unfired clay bricks: Determining factors and representativeness of the laboratory tests,” Constr Build Mater, 131, (2017), 600–605, doi: 10.1016/j.conbuildmat.2016.11.107
Sepúlveda, “Assessment of mechanical, thermal, mineral and physical properties of fired clay brick made by mixing kaolinitic red clay and paper pulp residues,” Appl Clay Sci, 198 (105847), (2020), doi: 10.1016/j.clay.2020.105847