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Online since: November 2012
Authors: Yong Xia Liu, Qi Wang Zhou, Shu Liang Zou, Tao Tang
            
                Taking the simulation of the chain transmission mechanism in feeding system of a mechanical equipment as the research object, the kinematical properties and the affecting factors are analysed in this paper.
Defining the connection between links and the sprocket-wheel as “cam” connection can realistically simulates the motion relation that the sprocket- wheel’s rotation drives the movement of the chain, and accurately reveals the kinematical properties of this kind of chain transmission mechanisms.
Mechanical Transmission. 2010.
China Mechanical Engineering.
Deng: Mechanical 3D Dynamic Design Simulation Technology.
            
    Defining the connection between links and the sprocket-wheel as “cam” connection can realistically simulates the motion relation that the sprocket- wheel’s rotation drives the movement of the chain, and accurately reveals the kinematical properties of this kind of chain transmission mechanisms.
Mechanical Transmission. 2010.
China Mechanical Engineering.
Deng: Mechanical 3D Dynamic Design Simulation Technology.
Online since: June 2014
Authors: Nordin Jamaludin, Sahari B. Barkawi, A.A. Nuraini, Abdullah Adibah, Othman Inayatullah, Masuri Siti Ujila
            
                In this mathematical model, the viscosity of the engine oil is manipulated by the factors of temperatue and time.
Both of this factors relies fully on laboratory data.
In the UKM model (ηUKM), the viscosity of engine oil is manipulated by two factors : temperature (ks) and time (km).
Both these factors are dependent on the composition of added substance of the oil.
Parc: Rheological Properties of Lubricants, Imprimerie Barneoud, France 1989
            
    Both of this factors relies fully on laboratory data.
In the UKM model (ηUKM), the viscosity of engine oil is manipulated by two factors : temperature (ks) and time (km).
Both these factors are dependent on the composition of added substance of the oil.
Parc: Rheological Properties of Lubricants, Imprimerie Barneoud, France 1989
Online since: April 2012
Authors: P. Jarupoom, Gobwute Rujijanagul, N. Lertcumfu, T. Tunkasiri, Kamonpan Pengpat
            
                Therefore, there have been many attempts to improve the mechanical and physical properties of sintered HA [1, 3, 4].
It is reported that the sintering temperature and atmosphere are important factors that could alter the strength and toughness of HA [10].
The formation of these phases affects to the mechanical properties of HA ceramics[11].
The additives also affect to the properties of the HA ceramics.
The present work aimed to study effects of metal oxide nano-particle on physical and mechanical properties of HA ceramics.
            
    It is reported that the sintering temperature and atmosphere are important factors that could alter the strength and toughness of HA [10].
The formation of these phases affects to the mechanical properties of HA ceramics[11].
The additives also affect to the properties of the HA ceramics.
The present work aimed to study effects of metal oxide nano-particle on physical and mechanical properties of HA ceramics.
Online since: January 2013
Authors: Jin Yang Li, Hong Xia, Shou Yu Cheng
            
                All kinds of sensor with mechanical properties often can go wrong in nuclear power plant.
Any a control equipment failure, especially sensor with mechanical properties failure will directly affect the normal operation of the nuclear power plant.
At present, nuclear power plant mainly uses the hardware redundant fault tolerant control method to prevent sensor with mechanical properties failure.
According to the result of FDD adjustment control scheme that can improve control system for processing capacity of fault factors and improve the performance of fault tolerant control.
The conclusion In view of the sensor with mechanical properties fault in nuclear power plant control system, it puts forward a kind of active fault tolerant control method based on the BP neural network.
            
    Any a control equipment failure, especially sensor with mechanical properties failure will directly affect the normal operation of the nuclear power plant.
At present, nuclear power plant mainly uses the hardware redundant fault tolerant control method to prevent sensor with mechanical properties failure.
According to the result of FDD adjustment control scheme that can improve control system for processing capacity of fault factors and improve the performance of fault tolerant control.
The conclusion In view of the sensor with mechanical properties fault in nuclear power plant control system, it puts forward a kind of active fault tolerant control method based on the BP neural network.
Online since: March 2006
Authors: Nobusuke Hattori, Shinichi Nishida, Priyo Tri Iswanto, Takamitsu Shimizu
            
                It is considered that the static 
mechanical properties relate to the mean value of micro-structures and the fatigue strength relates to 
the weakest portion of structures.
Therefore, the objects of the present study are to investigate the pulsating fatigue property of ferritic and martensitic stainless steel with comparing the different of the two materials in fatigue strength and fracture characteristics Experimental Procedures The static mechanical properties: Tables 1 and 2 list the chemical composition and mechanical properties of two kinds of materials (SUS430 and SUS410), respectively.
The reason for this phenomenon may be explained by the main factors of fatigue limit and tensile strength.
Although the static mechanical properties of FH2 are better than that of FH1, the fatigue strength of them is almost the same between FH1 and FH2
(2) The reason for this phenomenon may be explained by the main factors that affect the mechanical and fatigue properties.
            
    Therefore, the objects of the present study are to investigate the pulsating fatigue property of ferritic and martensitic stainless steel with comparing the different of the two materials in fatigue strength and fracture characteristics Experimental Procedures The static mechanical properties: Tables 1 and 2 list the chemical composition and mechanical properties of two kinds of materials (SUS430 and SUS410), respectively.
The reason for this phenomenon may be explained by the main factors of fatigue limit and tensile strength.
Although the static mechanical properties of FH2 are better than that of FH1, the fatigue strength of them is almost the same between FH1 and FH2
(2) The reason for this phenomenon may be explained by the main factors that affect the mechanical and fatigue properties.
Online since: June 2010
Authors: Rian J. Dippenaar, Ali Dehghan-Manshadi
            
                These precipitates were mostly deformed along the 
deformation direction and affected the recrystallization as well as the mechanical properties of the 
material.
This segregation has a significant effect on the microstructure and consequently, on the mechanical properties of the steel.
Using plain compression tests, the effect of centreline precipitate deformation on the mechanical properties of a selected steel was assessed.
This elongation affected the restoration kinetics and mechanical properties of the material.
The results also confirmed the strong influence of re-heating temperature of precipitates size, distribution and morphology as well as the mechanical properties of steel.
            
    This segregation has a significant effect on the microstructure and consequently, on the mechanical properties of the steel.
Using plain compression tests, the effect of centreline precipitate deformation on the mechanical properties of a selected steel was assessed.
This elongation affected the restoration kinetics and mechanical properties of the material.
The results also confirmed the strong influence of re-heating temperature of precipitates size, distribution and morphology as well as the mechanical properties of steel.
Online since: December 2010
Authors: Li Hua Zou, Kai Huang, Wei Zhang, Yu Rao, Li Yuan Wang
            
                The calculation formula of horizontal stiffness of isolator is derivated,and  the mechanical properties are researched.
The research results show that:besides the horizontal isolating property of common rubber isolators,the prestress rubber isolator has also properties of reducing vertical deformation, limiting horizontal displacement and resisting tension.Moreover,the prestress isolator has also a certain vertical isolating affect because of the improve of rubber thickness.
To improve the mechanical properties of RIs,a lot of researches have been done recent years.Su et al[7,9] studied the mechanical properties of high damping rubber(HDR) isolators,which can increase the energy dissipation capacity of structures; Skinner et al[1] set a flexible lead-core in the isolator,which is called lead-core rubber isolator, to increase the damping and initial lateral stiffness.The lead-core rubber isolator can reduce the lateral displacement of structures during strong earthquakes ,and improve the stability of structures during wind and minor earthquakes.Kang[4] proposed and researched the fiber reinforced rubber isolator.Their research results show that the steel plates can be replaced by a fiber reinforcement to reduce the weight of isolators.Zhang[6]and Cui[8] proposed a rubber isolator with a steel bar inside to limit the displacement of isolator,and introduced its restoring force model.
The purpose of this paper is to propose a new rubber isolator,namely PRI,to deduce the calculation of stiffness,and to research its mechanical properties.
(a) Making holes (b) Exerting prestress (c) Exerting vertical loads (d) Horizontal deformation Fig.2 Functional diagram of prestress isolator Vertical bearing ability and vertical stiffness The vertical bearing ability is one of the important mechanical properties of isolator.Under the application of vertical static loads,the mechanical mechanism of PRI is similar to that of normal RI.Hence,its calculation method of vertical bearing ability can consult that of normal RI as follow: (1) where,is the limiting average compressive stress of isolator;is the yield strength of steel plate;、are the thickness of single steel plate and rubber layer,respectively; is the first shape factor of isolator,which is the ratio of the active carrying area and the free face of each rubber layer,and its value can be obtained by: (2) where, is the diameter of active carrying area,is the diameter of hole
            
    The research results show that:besides the horizontal isolating property of common rubber isolators,the prestress rubber isolator has also properties of reducing vertical deformation, limiting horizontal displacement and resisting tension.Moreover,the prestress isolator has also a certain vertical isolating affect because of the improve of rubber thickness.
To improve the mechanical properties of RIs,a lot of researches have been done recent years.Su et al[7,9] studied the mechanical properties of high damping rubber(HDR) isolators,which can increase the energy dissipation capacity of structures; Skinner et al[1] set a flexible lead-core in the isolator,which is called lead-core rubber isolator, to increase the damping and initial lateral stiffness.The lead-core rubber isolator can reduce the lateral displacement of structures during strong earthquakes ,and improve the stability of structures during wind and minor earthquakes.Kang[4] proposed and researched the fiber reinforced rubber isolator.Their research results show that the steel plates can be replaced by a fiber reinforcement to reduce the weight of isolators.Zhang[6]and Cui[8] proposed a rubber isolator with a steel bar inside to limit the displacement of isolator,and introduced its restoring force model.
The purpose of this paper is to propose a new rubber isolator,namely PRI,to deduce the calculation of stiffness,and to research its mechanical properties.
(a) Making holes (b) Exerting prestress (c) Exerting vertical loads (d) Horizontal deformation Fig.2 Functional diagram of prestress isolator Vertical bearing ability and vertical stiffness The vertical bearing ability is one of the important mechanical properties of isolator.Under the application of vertical static loads,the mechanical mechanism of PRI is similar to that of normal RI.Hence,its calculation method of vertical bearing ability can consult that of normal RI as follow: (1) where,is the limiting average compressive stress of isolator;is the yield strength of steel plate;、are the thickness of single steel plate and rubber layer,respectively; is the first shape factor of isolator,which is the ratio of the active carrying area and the free face of each rubber layer,and its value can be obtained by: (2) where, is the diameter of active carrying area,is the diameter of hole
Online since: January 2022
Authors: Hanmant Virbhadra Shete, Sanket Dattatraya Gite
            
                Laser power, welding speed, and incident angle are the factors that affect the weld bead characteristics significantly.
Material properties were assigned to the model.
Hence, welding speed is the most significant factor affecting the tensile strength followed by the voltage in AGMAW process. 5.
Hence welding speed is the most significant factor affecting the tensile strength followed by the voltage in AGMAW process.
Garg, Effect of welding parameters on mechanical properties of GTAW of UNS S31803 and UNS S32750 weldments, Manufacturing review, 2, (2015), 1-9
            
    Material properties were assigned to the model.
Hence, welding speed is the most significant factor affecting the tensile strength followed by the voltage in AGMAW process. 5.
Hence welding speed is the most significant factor affecting the tensile strength followed by the voltage in AGMAW process.
Garg, Effect of welding parameters on mechanical properties of GTAW of UNS S31803 and UNS S32750 weldments, Manufacturing review, 2, (2015), 1-9
Online since: September 2014
Authors: Jian Su, Heng Mei, Zhi Kun Lan
            
                Meanwhile the key factors affecting the dynamical characteristics of the system were discussed in detail.
The anti-shearing stiffness, anti-bending stiffness and tensile stiffness of bogie were key factors of affecting the security, smoothness and stability of railway vehicle[2].
Mechanical system was the frame of the bogie test-bench, which was consisted of gantry, cross slide-bed, the agency of fixing wheel and guiding rail.
Each affects differently the time from vibration to steadiness of the system.
Through objectively and comprehensively analyzing factors which affect the system stability and efficiency, we simulate the mathematical model in Matlab7.0.
            
    The anti-shearing stiffness, anti-bending stiffness and tensile stiffness of bogie were key factors of affecting the security, smoothness and stability of railway vehicle[2].
Mechanical system was the frame of the bogie test-bench, which was consisted of gantry, cross slide-bed, the agency of fixing wheel and guiding rail.
Each affects differently the time from vibration to steadiness of the system.
Through objectively and comprehensively analyzing factors which affect the system stability and efficiency, we simulate the mathematical model in Matlab7.0.
Online since: August 2012
Authors: Hui Wang, Cai Hong Zhuang, Hai Xia Liu
            
                And then its mechanical properties of the relevant parameters were measured to determine the optimal preparation program.
Orthogonal tests with three elements and three levels were builded to analyze these factors fully.
The factors and levels of the experiment are showed in Table 3.
The test results of mechanical properties are showed in Table 6.
As a result, polyurethane concrete also has sufficiently good mechanical properties while it has the characteristic of fast patching.
            
    Orthogonal tests with three elements and three levels were builded to analyze these factors fully.
The factors and levels of the experiment are showed in Table 3.
The test results of mechanical properties are showed in Table 6.
As a result, polyurethane concrete also has sufficiently good mechanical properties while it has the characteristic of fast patching.