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Online since: June 2014
Authors: You Liang Ma, Yan Zhi Cheng, Xi Chen
A special control method is put forward in this article to achieve the consistency with the mechanical properties of engine.
However, the mechanical properties of the motor and the engine is very different, as a result, the handling characteristics of fuel automobile and the ELV is very different.
This characteristics of the motor makes it have better mechanical properties than the engine, but all kinds of motor control technology set up based on this feature can’t transform motor into mechanical properties similar to engine.
When ELD starts, the speed of the motor is very low, according to the mechanical properties of the motor, torque offered by motor will be very big.It is necessary to reduce the electromagnetic torque, so that Hope ELD and fuel achieve the same effect when the car starts, which can be achieved just by the armature voltage regulating method.
Making the mechanical properties of the motor similar to the fuel engine becomes available, which makes ELD further replace fuel truly and makes it possible to make full use of advantages of electric vehicle, such as no pollution, saving oil resources, reducing the cost of driving training and so on.
However, the mechanical properties of the motor and the engine is very different, as a result, the handling characteristics of fuel automobile and the ELV is very different.
This characteristics of the motor makes it have better mechanical properties than the engine, but all kinds of motor control technology set up based on this feature can’t transform motor into mechanical properties similar to engine.
When ELD starts, the speed of the motor is very low, according to the mechanical properties of the motor, torque offered by motor will be very big.It is necessary to reduce the electromagnetic torque, so that Hope ELD and fuel achieve the same effect when the car starts, which can be achieved just by the armature voltage regulating method.
Making the mechanical properties of the motor similar to the fuel engine becomes available, which makes ELD further replace fuel truly and makes it possible to make full use of advantages of electric vehicle, such as no pollution, saving oil resources, reducing the cost of driving training and so on.
Online since: December 2004
Authors: Li Jie Ma, Gui Cheng Wang, Hong Jie Pei
The cutting vibration is one of the main factors to affect precision machining.
Tool rake angle is one of the important geometrical parameters, directly affecting cutting zone deformation, chip morphology, chip break formation, cutting force, tool head strength and machined surface quality.
Different metal materials have different physical mechanical performances.
According to measured data in Table 1, relation curve of tool rake angle and cutting speed affecting amplitude of vibration is given in Fig.2.
From machining principle, tool work angle changes with tool movement properties, and it affects cutting force.
Tool rake angle is one of the important geometrical parameters, directly affecting cutting zone deformation, chip morphology, chip break formation, cutting force, tool head strength and machined surface quality.
Different metal materials have different physical mechanical performances.
According to measured data in Table 1, relation curve of tool rake angle and cutting speed affecting amplitude of vibration is given in Fig.2.
From machining principle, tool work angle changes with tool movement properties, and it affects cutting force.
Online since: May 2012
Authors: Yan Cheng Liu, Yu Dong Liu, Chuan Wang, Yi Wei
The method is proved effective by the experimental data, and provides theoretical bases for residual life of cable and cable anti-aging study under the influence of multi-factors.
It can cause fire. [1] [2]During the usage of insulated cables, the electro-physical and mechanical properties of rubber will change due to its oxidation and decomposition, and it gradually hardens and becomes brittle.
Fig.5 The master curve Fig.6 The curve of shifting factors and temperature Fig. 5 is the master curve, while Fig.6 shows the relationship between shifting factors and temperature.
Conclusion Although Arrhenius equation can be applied to predict the cable life-span under the single influence of temperature, it is limited in the study on shipboard cable life-span, which is always affected by multi-factors.
[3]Kumazawa T,Hotta M,Sugiyama S,et al.A new hot-line diagnostic method for XLPE power cables-AC superposition method.Proceedings of the 5th International Conference on Properties and applications of Dielectric Materials.Seoul,Korea, 1997:394-397
It can cause fire. [1] [2]During the usage of insulated cables, the electro-physical and mechanical properties of rubber will change due to its oxidation and decomposition, and it gradually hardens and becomes brittle.
Fig.5 The master curve Fig.6 The curve of shifting factors and temperature Fig. 5 is the master curve, while Fig.6 shows the relationship between shifting factors and temperature.
Conclusion Although Arrhenius equation can be applied to predict the cable life-span under the single influence of temperature, it is limited in the study on shipboard cable life-span, which is always affected by multi-factors.
[3]Kumazawa T,Hotta M,Sugiyama S,et al.A new hot-line diagnostic method for XLPE power cables-AC superposition method.Proceedings of the 5th International Conference on Properties and applications of Dielectric Materials.Seoul,Korea, 1997:394-397
Online since: July 2014
Authors: Ivan Cabrera, Ana Almerich-Chuliá, E. Fenollosa
Concrete’s creep is one of the factors that increase lateral displacements of the bar in the long run.
Among the different composite section columns those composed by a metal profile encased with concrete offer other properties such as protection against fire and corrosion.
If a segment involves different materials, it will be divided in portions so as to determine the area and the stress which is affecting each one.
However in curve 2 the stress for concrete is affected by a coefficient with a value of 0,85.
Zhang: Concrete Shrinkage and Creep Effect Prediction Model and the Influence Factors Analysis.
Among the different composite section columns those composed by a metal profile encased with concrete offer other properties such as protection against fire and corrosion.
If a segment involves different materials, it will be divided in portions so as to determine the area and the stress which is affecting each one.
However in curve 2 the stress for concrete is affected by a coefficient with a value of 0,85.
Zhang: Concrete Shrinkage and Creep Effect Prediction Model and the Influence Factors Analysis.
Online since: May 2020
Authors: A.K. Kairakbaev, E. S. Abdrakhimova, V.Z. Abdrakhimov
The resultant S-shaped tiles were compliant with OST 21-32-84 in terms of physico-mechanical properties.
This method can be used to find how changes in variables affect the physico-mechanical parameters [18-20].
Some factors such as pressure and firing temperature were unaltered during the experiments.
Summary The constructed mathematical models can be used to determine the composition of ceramic mixture of the desired physico-mechanical properties.
Knowing the ceramic mixture composition, one can predict the physico-mechanical properties of tiles.
This method can be used to find how changes in variables affect the physico-mechanical parameters [18-20].
Some factors such as pressure and firing temperature were unaltered during the experiments.
Summary The constructed mathematical models can be used to determine the composition of ceramic mixture of the desired physico-mechanical properties.
Knowing the ceramic mixture composition, one can predict the physico-mechanical properties of tiles.
Online since: July 2011
Authors: Li Xu, Yue Liang Chen, Hao Luo, Lin Yi
This paper briefly describes the mechanism of fretting damage and influencing factors, for the current instance of fretting damage and the status of the aircraft in service, the research of corrosion on the fretting fatigue of aluminum alloy material is very important.
The theory has a clear mechanical concepts, is both an understanding of macro and micro.
Conclusions For Navy aircraft, the corrosion of ground parking environment is a major affecting factor to life.
Aircraft structure factors of accelerated corrosion damage [J].
Fatigue loads, and mechanical properties of the surface of fretting fatigue crack initiation on the location of [J].
The theory has a clear mechanical concepts, is both an understanding of macro and micro.
Conclusions For Navy aircraft, the corrosion of ground parking environment is a major affecting factor to life.
Aircraft structure factors of accelerated corrosion damage [J].
Fatigue loads, and mechanical properties of the surface of fretting fatigue crack initiation on the location of [J].
Online since: April 2023
Authors: Vinod Kumar, Niraj Bala
Good quality machined surface increases mechanical properties such as fatigue strength, Corrosion resistance, and Creep.
Figure.2 main effect graphs for the SN ratio on a TiAlN coated tool show how each element affected the response properties.
Figure 3 main effect graphs for the SN ratio on a TiAlN-TiN coated tool show how each element affects the response properties.
Figure 3 main effect graphs for the SN ratio on a TiAlN coated tool show how each element affects the response properties.
Influence of severe metal forming processes on microstructure and mechanical properties of MG Alloys.
Figure.2 main effect graphs for the SN ratio on a TiAlN coated tool show how each element affected the response properties.
Figure 3 main effect graphs for the SN ratio on a TiAlN-TiN coated tool show how each element affects the response properties.
Figure 3 main effect graphs for the SN ratio on a TiAlN coated tool show how each element affects the response properties.
Influence of severe metal forming processes on microstructure and mechanical properties of MG Alloys.
Evaluation of a Low-Cost System for Measuring Thermal Conductivity in 3D-Printed Metallic Structures
Online since: January 2026
Authors: Maria Richetta, Andrea Böhme, Hannes Jacobs, Mike Thomas Hauschultz, Maria Helene Friedo, Conrad Kallabis, René Krenz-Baath
A key factor affecting measurement accuracy is interfacial thermal resistance, which arises at the contact interface between two materials and can hinder heat transfer.
This resistance is influenced by the material properties, surface finish and contact pressure.
SLM enables the production of metallic lattice structures with lightweight and customisable thermal properties.
Uniform lattice specimens based on a body-centred cubic (BCC) geometry were fabricated using stainless steel 316L (1.4404), a material widely adopted in metal additive manufacturing for its favourable mechanical and thermal properties.
Properties and applications of additively manufactured metallic cellular materials: A review.
This resistance is influenced by the material properties, surface finish and contact pressure.
SLM enables the production of metallic lattice structures with lightweight and customisable thermal properties.
Uniform lattice specimens based on a body-centred cubic (BCC) geometry were fabricated using stainless steel 316L (1.4404), a material widely adopted in metal additive manufacturing for its favourable mechanical and thermal properties.
Properties and applications of additively manufactured metallic cellular materials: A review.
Online since: August 2013
Authors: Min Tian, Ji Hua Cai, Kuan Cai Yang
Main factors of borehole deviation and prevention measures
Historical construction.
The main factors of borehole deviation.
Stratum and drilling technology are the main factors of borehole trajectory deviation [2].
As the stratum is not a single lithology formation occurrence in a mining area varies frequently and the rock stratification is highly developed, it makes the physical and mechanical properties of rocks are not the same in different directions.
The drilling parameters are also the important factors that affect borehole deviation.
The main factors of borehole deviation.
Stratum and drilling technology are the main factors of borehole trajectory deviation [2].
As the stratum is not a single lithology formation occurrence in a mining area varies frequently and the rock stratification is highly developed, it makes the physical and mechanical properties of rocks are not the same in different directions.
The drilling parameters are also the important factors that affect borehole deviation.
Online since: January 2013
Authors: Xin Hai Wang, Wei Lv, De Li Zhang, Xiao Nan Zhang, Zhong Xia Zhao
The effect factors were analyzed which were initial water content, hot air temperature, mass of hot air and materiel.
A test bed was established and the single factor experiments were made, analyzing and summarizing the effect law of various factors to the drying. 2.
Effect factors and levels in the drying process are in the table 1.
Hot air temperature is the main factor affecting the drying characteristics.
Mass flow of materials is related to many factors, so as drying tube diameter, the hot air mass flow and the actual project requirements and so on.
A test bed was established and the single factor experiments were made, analyzing and summarizing the effect law of various factors to the drying. 2.
Effect factors and levels in the drying process are in the table 1.
Hot air temperature is the main factor affecting the drying characteristics.
Mass flow of materials is related to many factors, so as drying tube diameter, the hot air mass flow and the actual project requirements and so on.