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Online since: March 2014
Authors: Yang Qiao, Xiu Li Fu, Ning Fan
Three kinds of dimensional simplified models were established according to the structure properties of interpenetrating network composites.
The random properties of cutting forces were also analyzed.
The random cutting force properties were also analyzed.
The cutting properties especially cutting forces are affected by reinforced phase parameters d, α and β of INC.
Because the mechanical properties of reinforced phase and matrix are mismatched, the surface crack could arise for the separation of the two phases on interface.
The random properties of cutting forces were also analyzed.
The random cutting force properties were also analyzed.
The cutting properties especially cutting forces are affected by reinforced phase parameters d, α and β of INC.
Because the mechanical properties of reinforced phase and matrix are mismatched, the surface crack could arise for the separation of the two phases on interface.
Online since: August 2010
Authors: Xin Yue Wu, Ping Hao Zhang, Cheng Zhong Gu
In recent years, Chinese scholars have done some research about properties and application of
metal rubber material.
It is impossible to research the damping properties of metal rubber material only from a theoretical point of view, and the application of some theoretical model is limited.
There are many factors affect the characteristics of metal rubber material, such as material, wire diameter, screw intermediate diameter, screw distribution, the relative density, molding technique and so on.
In this paper, experiment research focuses on the relative density effect on the properties of Metal Rubber.
China Mechanical Engineering, 2002, 13(21): 1801-1804
It is impossible to research the damping properties of metal rubber material only from a theoretical point of view, and the application of some theoretical model is limited.
There are many factors affect the characteristics of metal rubber material, such as material, wire diameter, screw intermediate diameter, screw distribution, the relative density, molding technique and so on.
In this paper, experiment research focuses on the relative density effect on the properties of Metal Rubber.
China Mechanical Engineering, 2002, 13(21): 1801-1804
Online since: September 2014
Authors: Kwang Soo Park, Sook Hwan Kim, Dong Kyu Kim
Study of Formability of steel thick plates for offshore structures
Kwang soo Park1, a *, Sook hwan Kim2,b and Dong kyu Kim3,c
1Rist Ulsan Laboratory, Megok Industrial Park 3F, Buk gu Ulsan, Korea
2 Rist Ulsan Laboratory, Megok Industrial Park 3F, Buk gu Ulsan, Korea
3Department of Mechanical engineering, Busan National University, Kumjung Gu, Busan, Korea
*awinter@rist.re.kr, bweldsh@rist.re.kr, cKusakik@hanmail.net
Keywords: Steel thick plate, Jack up Rig, Rack and Chord, Press forming, Roll forming
Abstract.
Attainment of mechanical properties is not usually difficult, although procedural trials are advisable.
It is hard to estimate this buckling phenomenon accurately because this is affected by many factors such as flow stress of material, thickness of material, HD (Horizontal Distance) between rolls, bending angle and etc.
By estimating this, die’s property and roll shaft can be designed.
Attainment of mechanical properties is not usually difficult, although procedural trials are advisable.
It is hard to estimate this buckling phenomenon accurately because this is affected by many factors such as flow stress of material, thickness of material, HD (Horizontal Distance) between rolls, bending angle and etc.
By estimating this, die’s property and roll shaft can be designed.
Online since: August 2011
Authors: Min Xiao, Bao Shou Sun, Xue Dao Shu
Influence regularities of axial force of cross wedge rolling symmetric shaft-parts about technical parameters
Xuedao Shu 1, Baoshou Sun1 and Min Xiao1,a
1College of Mechanical Engineering and Mechanics, Ningbo University, China , 315211
axiaominsohu@163.com
Key words: Technical parameters; Cross wedge rolling; Asymmetric; Axial force
Abstract: Because of unbalanced axial force of cross wedge rolling asymmetric shaft-parts causing the rolling play and not stably, it is key factors to restrict application in asymmetric shaft-parts of cross wedge rolling.
It will impede the smooth progress of the rolling technical and affect mechanical properties of products in rolling technical.
In establishing the finite element analysis model, we can get the real forming technical by full considering above factors.
Mechanical Technology Division, vol.4 (2001),p.33
It will impede the smooth progress of the rolling technical and affect mechanical properties of products in rolling technical.
In establishing the finite element analysis model, we can get the real forming technical by full considering above factors.
Mechanical Technology Division, vol.4 (2001),p.33
Online since: September 2011
Authors: Li Hui, Song Zhou, Liang Xu, Shao Hua Ma, Yan Wang, Ying Ying Zhang, Hai Xia Zhao
Investigation on microstructure and wear properties of
an in-situ synthesized TiC gradient coating
Liang Xua,Haixia Zhaob, Li Huic, ShaoHua Ma, Song Zhou, YingYing Zhang, Yan Wang
College of Mechanical and Electrical Engineering, Shenyang Aerospace University, Shenyang, China.110136
asysyxu@163.com, bsyhk2011@yahoo.cn, csyhuili@126.com
Keywords: Laser cladding; Gradient Coating; Wear properties
Abstract.
The most outer coating has an excellent comprehensive properties.
TiC has high hardness, high-bending strength, high-abrasion resistance, excellent thermodynamic properties and other characteristics[1].
As Ti has different thermal expansion coefficient, elastic modulus and other properties from those of TiC.
The comprehensive effect of various factors make G/V value decreases so as to the evolution of solidification microstructure evolutes from the mesh crystal to the branches crystal or even the equiaxed crystal.
The most outer coating has an excellent comprehensive properties.
TiC has high hardness, high-bending strength, high-abrasion resistance, excellent thermodynamic properties and other characteristics[1].
As Ti has different thermal expansion coefficient, elastic modulus and other properties from those of TiC.
The comprehensive effect of various factors make G/V value decreases so as to the evolution of solidification microstructure evolutes from the mesh crystal to the branches crystal or even the equiaxed crystal.
Online since: January 2014
Authors: Chang Jin Liang, Jing Ying Li, Chuan Jing Ma
And the activity of cyanogenic bacteria is affected by many factors, such as pH, dissolved oxygen pulp density and nutriment, especially several metal ions, which can serve as the catalyst in the metabolism.
The ability of P. aeruginosa to infect humans and plants has been ascribed to its production of various secreted and surface associated virulence factors.
So the process is limited by many factors, such as microbial properties, nutriment, DO, pH, pulp density and particle size etc.
If the optimum combination of all these factors is explored, biotechnology will be one of the most promising technologies in metallurgical processing.
Based on the differences of the physical properties (gravity, magnetism, electrical conductivity, etc.) different materials can be separated by multi-crushing, grinding, electrostatic separation, gravity separation, fluid-bed separation, density -based separation, and magnetic separation.
The ability of P. aeruginosa to infect humans and plants has been ascribed to its production of various secreted and surface associated virulence factors.
So the process is limited by many factors, such as microbial properties, nutriment, DO, pH, pulp density and particle size etc.
If the optimum combination of all these factors is explored, biotechnology will be one of the most promising technologies in metallurgical processing.
Based on the differences of the physical properties (gravity, magnetism, electrical conductivity, etc.) different materials can be separated by multi-crushing, grinding, electrostatic separation, gravity separation, fluid-bed separation, density -based separation, and magnetic separation.
Online since: July 2025
Authors: Nujira Kothanamn, Chatpawee Hom On, Amarin Tongkratoke, Porawit Jiandon
The effects of plasma treatment induced modifications of structure and physical properties of WO3 thin films.
Introduction Tungsten oxide (WO3) thin films are of significant interest in various fields due to their unique physical and chemical properties.
The bandgap of WO₃ is generally in the range of 2.6 to 3.2 eV [1], depending on factors such as the material's crystalline structure, film thickness, and preparation method.
Therefore, post-deposition treatments [8], such as O2 plasma treatment [9], are often employed to modify and enhance these properties.
Marszałek, "Structure and optical properties of the WO₃ thin films deposited by the GLAD magnetron sputtering technique," Vacuum, 2020
Introduction Tungsten oxide (WO3) thin films are of significant interest in various fields due to their unique physical and chemical properties.
The bandgap of WO₃ is generally in the range of 2.6 to 3.2 eV [1], depending on factors such as the material's crystalline structure, film thickness, and preparation method.
Therefore, post-deposition treatments [8], such as O2 plasma treatment [9], are often employed to modify and enhance these properties.
Marszałek, "Structure and optical properties of the WO₃ thin films deposited by the GLAD magnetron sputtering technique," Vacuum, 2020
Online since: January 2012
Authors: Chuan Sheng Wang, Ping Ping Shan, Wei Wei Liu
This part of the alloy material’ properties isn’t considered in this paper, and the uniform material of rotor is assumed.
The main property parameters in Table 1 are known.
In fact, the cooling water section is random-walking and no constraint in mechanical position.
The various factors that affect the fatigue limit relate to stress concentration, especially in the junction of power input shaft part and the disk where we can add circular bead transition and the stress concentration phenomenon will be ease greatly.
So that the failure situation of sections and the size of the safety factor will be judged directly.
The main property parameters in Table 1 are known.
In fact, the cooling water section is random-walking and no constraint in mechanical position.
The various factors that affect the fatigue limit relate to stress concentration, especially in the junction of power input shaft part and the disk where we can add circular bead transition and the stress concentration phenomenon will be ease greatly.
So that the failure situation of sections and the size of the safety factor will be judged directly.
Online since: June 2014
Authors: Xiao Wu Ni, Xiu Mei Liu, Bei Bei Li, Wen Hua Li, Jie He, Jian Lu
Fig.2 Time evolution of the bubble radius R(t) in liquids with different viscosity.
3.2 effect of surface tension on bubble dynamics
Surface tension of a liquid is one of the basic factors determining the rate and nature of the collapse of cavitation bubbles.
First, the physical properties such as viscosity and surface tension of high temperature water are quite different from those of normal-temperature water.
The reason is that liquid viscosity, surface tension and saturated steam pressure and other physical properties caused by the change of the liquid temperature.
The results show that the temperature is the most important parameter which affects the expansion and collapse of a bubble.
China Mechanical Engineering, 2007,18(22):2687-2691 [3] Li Chao, Ying Chong Fu, Bai Li Xin et al.The characteristic of cavitation noise and the intensity measurement of hydrodynamic cavitation[J].
First, the physical properties such as viscosity and surface tension of high temperature water are quite different from those of normal-temperature water.
The reason is that liquid viscosity, surface tension and saturated steam pressure and other physical properties caused by the change of the liquid temperature.
The results show that the temperature is the most important parameter which affects the expansion and collapse of a bubble.
China Mechanical Engineering, 2007,18(22):2687-2691 [3] Li Chao, Ying Chong Fu, Bai Li Xin et al.The characteristic of cavitation noise and the intensity measurement of hydrodynamic cavitation[J].
Online since: October 2013
Authors: Shuai Luo, Quan Sheng Yan, Hong Jun Liu
To overcome cable vibration problems, a common practice is to install mechanical damper to connect the cable to the bridge deck, and a number of control methods have been proposed to mitigate cable vibrations.
This nondimensionalized curve can be used to specify the optimal viscous damping properties for a desired mode of any given cable span and fundamental frequency.
Fujino and Hoang analyzed the effects of bending on the modal properties of a stay cable with a transverse damper [5].
The current widely used by researchers in the theoretical model assumed that the damper is fixed outside of the deck, and the non-idealized factors such as damper stiffness are neglected in the idealized mitigation analysis model, is not reasonable to consider the bridge deck-cable-damper coupled vibration impact caused by the motion of the bridge deck and viscous damper non-idealized characteristics.
The system modal damping affected by the cable-stayed inclination is another problem need to pay particular attention.
This nondimensionalized curve can be used to specify the optimal viscous damping properties for a desired mode of any given cable span and fundamental frequency.
Fujino and Hoang analyzed the effects of bending on the modal properties of a stay cable with a transverse damper [5].
The current widely used by researchers in the theoretical model assumed that the damper is fixed outside of the deck, and the non-idealized factors such as damper stiffness are neglected in the idealized mitigation analysis model, is not reasonable to consider the bridge deck-cable-damper coupled vibration impact caused by the motion of the bridge deck and viscous damper non-idealized characteristics.
The system modal damping affected by the cable-stayed inclination is another problem need to pay particular attention.