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Online since: March 2014
Authors: Yun Long Li, Markus Kley, Shi Jie Wang
Moreover by changing different loading parameters, several critical factors will be pointed out.
Secondly, based on the transmission calculation theory, we will study the main factors which can affect the driving performance directly.
Calculation Method To study a vehicle which driving on the ground, different forces and motion factors should be deep focused on.
However in order to check if the friction factor can real affect the results, different friction factor will be compared in the next section.
Then two friction factors 0.8 and 1.0 will be loaded and compared to each other.
Online since: July 2011
Authors: Shuang Ping Lin, Qiao Fei Chen, Shao Kui Deng, Ju Xing Yang, Ben Rong Sun, Mei Guang Fan
The results showed that the quenching temperature is more sensitive than the tempering temperature on the mechanical properties.
However, few researchers have been draw attention on the effect of production technology on the microstructure and properties of PC steel bars.
In this paper, the effect of heat-treatment on the microstructure and properties of the PC steel bars were studied, including the temperature of quenching and temper.
Furthermore, the factors affact the yield- strength ratio have been derived.
The tensile specimens heat-treated are machined for mechanical property tests.
Online since: June 2014
Authors: Guang Chun Xiao, Chong Hai Xu, Ming Li, Zhao Qiang Chen, Guang Chao Chu
The result reveals that CaF2 particle was uniformly coated with a layer of Al(OH)3 and Al3+ concentration, pH value and reaction temperature are the main factors that affect coating result.
While with the lowering friction coefficient and lightening tool wear, mechanical properties and wear resistance of these tool materials decrease severely, which limits the improvement of the tool life.
And to obtain self-lubricating tools with good lubrication performance without impacting its mechanical properties has important practical significance.
T and C are the main influenced factors.
Preparation and Properties of Borosilicate Coated Alumina Particles From Alkoxides [J].
Online since: August 2013
Authors: Xue Jun Zhang, Kun Peng Song, Zi Cheng Zhu, Si Wei Lai, Xiao Pan Xu
Based on the analysis of current researches on various mechanical deicing methods, a new mechanical-milling deicing method was presented.
Introduction Every winter, many areas suffer from snow and ice attacks, which increase the accident rate on roads and cause serious damage to people’s life and property.
Structure of Mechanical Milling Device By drawing on the experience of mechanical milling process, this paper proposes and designs a mechanical milling deicer, as is shown in Fig.1.
Considering the wear of the cutter, road damage and other factors, the cutter should not directly touch the road in the experimental design, thus residue about 1 ~3mm thickness of the ice during the milling.
Fig. 3 Transformation of cutting model In this model the relief angle is negative, which means only one surface of edge is affected by the ice cutting resistance.
Online since: February 2012
Authors: Gang Wu, Shuang Kun Chen, Hong Ling Qin, Chun Hua Zhao
They found that the size, shape and content of the porogen in the molding mixture greatly affect the physical properties of the final porous sample.
Porous UHMWPE has porous structure, the mechanical properties is not as strong as normal UHMWPE.
But compare to other factors, the effect of thickness of porous layer is very small and negligible.
On the other hand, high porosity decreases the mechanical properties, consequently the tribological properties also markedly decrease.
Thickness of porous layer has little effect on the tribological properties of porous UHMWPE.
Online since: September 2017
Authors: E.V. Poyarkova, K.L. Zabelin, I.R. Kuzeev
The article discusses the non-metallic inclusions in the oxide and silicate types welding joints and their influence on the formation of the metal mechanical properties.
Influence of NMI on the steel strength is determined by their form, size, properties and arrangement in the matrix.
One of the factors that affect the crack initiation possibility is the size of the inclusions.
Thus, structure-phase composition of steels is one of the key factors that influence on the formation of a general set of its mechanical properties.
Interaction of carbon atoms with defects can not be any constant because of the existing dependencies on several factors.
Online since: January 2014
Authors: Xiang Fu Liu
The ability to exist due to the various factors affecting the reliability of uncertainty, such as load, material properties, such as variation calculated differences of the imperfections of the model, production quality, but these factors are random, and therefore the completion of the engineering structures predetermined function only with a probability measure.
Without uncertainties include probabilistic uncertainty analysis probabilistic model of uncertainty, the uncertainty of the physical and mechanical model, the cross-section resistance of the basic assumptions of the formula and calculation model inaccuracies and human neglect and material properties, geometric parameters error.
Because these attributes are not visible during the query, which in the initial stage to estimate these properties.
Influencing Factors of Probabilistic Model Changes in the real world are being affected by a number of factors, including deterministic and random.
From the background, purpose and means of modeling, the main factor is to determine the random factors can be ignored, or simply random factors can appear to the average effect, you will be able to establish a deterministic model.
Online since: May 2011
Authors: Jian Suo Ma, Yong Hao, Run Shan Bai
In this paper, eight BFRPS timber columns under axial compressive loads are tested, and damage characteristics and mechanical properties are studied based on the testing results.
Compared with the components which are reinforced and not, the relationship between the effects of bearing factors and increasing degrees can be concluded, providing reference for the similar engineering problems.
Introduction Due to long-term effects of environmental factors such as typhoons, earthquakes and rain erosion, or because of defects in wood material itself, the components’ bearing capacity of ancient wood buildings gradually diminishes, prone to bending, breaking and other phenomena.
And reinforced with BFRPS, wood structure treated with paint will not affect the appearance, almost without adding additional weight, so it is the first choice in reinforcement material of wooden structure.
Therefore, pasting vertical basalt fiber cloth can effectively suppress the instability of axial compression of long poles damage, which significantly improves its mechanical properties.
Online since: January 2018
Authors: Nur Izzi Md Yusoff, Riyadh Abdulwahid, Muhamed Laith Eidan, Shaban Ismael Albrka Ali
Throughout the service life of asphalt mixtures, various internal and external factors contribute towards the deterioration of pavement integrity.
Traffic load is known to be one of the main factors affecting pavement layers which then result in fatigue and permanent deformations of the upper layer of pavements [3-5].
The mechanical properties of the asphalt mixtures was investigated using the resilient modulus, dynamic creep, and moisture susceptibility tests. 2.
The results of the One-way ANOVA analysis presented in Table 4 indicate that the percentage of CaCO3 is the most significant factor affecting the performance properties, with the addition of higher amount of modifier having more significant effects on other performance of the modified asphalt binder.
Evaluation of mechanical properties of nano-clay modified asphalt mixtures.
Online since: August 2014
Authors: Xiao Dong Tan, Xing Xing Wang, Jiang Chen
Because of the resistance wire (or wire rod body resistance), air convection, the temperature and other environmental factors, it is difficult to establish accurate mathematical mode.
It is general with the properties of inertia, nonlinearity and Strong coupling.
This three-step heating curve is satisfied with the gel require: made the undesirable impact which caused by the epoxy resin heating to lowest, made the temperature of stator bar to curing temperature slowly and hot insulation to solidify; analyzing from the point of view of auto-control, when set point is ramp function, the overshoot of system is greatly reduced, the environmental factors, coupling factors and so on will reduce the interference of the system.
In a coil production workshop of a power equipment factory in Jinan, the used material is epoxy glass which has large amount of glue, uniform thickness and good electrical and mechanical properties after curing.
That is about 177 ℃.Considering the above factors, the final options is the scheme which incubated 2.5 hours at 175 ℃.
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