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Online since: March 2015
Authors: Jin Gang Gao, Lei Yu, Yu Zhuo Men, Hai Bo Yu, Xiao Dong Yang
Also, the centrifugal force may, through the steering mechanism, be delivered to the steering wheel, making the latter shake and thus influence seriously the dynamic and static properties of the car.
Under these circumstances, to minimize the effects of artificial factors on measurement result, a highly effective and smart detection approach is required for wheel hubs produced in bulk so that to guarantee the conformity and precision of detection result[4,5].
(2) Analysis on Measured Radial Run-outs Data obtained by the portable wheel run-out tester and figures drawn accordingly show the first harmonic with relatively great amplitude while other harmonics with very small ones, which means that eccentricity is a main factor affecting the stability of wheels.
We can then enhance the precision of detection from the influencing factors: frame stiffness, live spindle and the repeated accuracy of localization clamps, precision and installation error of the radial and axial laser displacement sensors used to measure the wheel.
Data of some actual wheel outline was collected by the detection equipment and analyzed based on factors contributing to radial and axial run-out errors.
Online since: October 2015
Authors: Marek Kočiško, Radoslav Krehel', Denisa Krchová
The purpose is to determine the actual status of the object based on objective evaluation of signs detected thanks to measuring techniques, prediction, conditions and properties of the device used in service, detecting the degradation factors, which could lead to malfunction.
The temperature is an important factor that affects the wearing of the cutting tool´s wedge.
It should be realized that every second product that is purchased is affected by parameters of turning tool that the component was turning.
The worn a new cutting tool by their parameters (durability, quality, performance) affect the result of the machining process up to 90%.
Paško, Influence of technological factors of die casting on mechanical properties of castings from silumin, Lecture Notes in Electrical Engineering 240 (2013) 713-722
Online since: July 2014
Authors: Alok Ranjan Biswal, Tarapada Roy, Rabindra Kumar Behera
Vibration analysis of a Timoshenko beam with transverse open crack by Finite Element Method Alok Ranjan Biswal1,a *, Rabindra Kumar Behera2,b, and Tarapada Roy3,c 1Ph.D, Research scholar, Department of Mechanical Engineering, NIT, Rourkela 769008, INDIA 2Associate Prof., Department of Mechanical Engineering, NIT, Rourkela 769008, INDIA 3Asst Prof., Department of Mechanical Engineering, NIT, Rourkela 769008, INDIA a alokbiswal82@gmail.com,b rabi57@rediffmail.com,ctarapada@nitrkl.ac.in Key words:Timoshenko beam, cracked beam, finite element method.
So it is very much essential to know the property of structures and response of such structures in various cases.
It has been observed that the presence of crack in the beam, will affect the natural frequency.
Also the change of dynamic property will effect on stiffness and dynamic behavior.
(9) Where ‘L’ is the transformation matrix Result and discussion For numerical analysis the various geometric and physical properties of the beam are L=1m, D=2cm, E=206Gpa, ρ=7800Kg/m3&µ=0. 3.
Online since: February 2014
Authors: Xiao Feng Li, Jian Ping Yang, Tao Yang, Jian Bo Yang, Xing Ao Li, Min Fen Gu
These applications are based on its unique properties, such as the rather low thermal decomposition temperature, semiconductor properties and excellent optical qualities [1,2,3].
In order to further understand the 3d-TM doped Cu3N, in this paper, the influence of doping of Mn element on the structural, mechanical, electrical, optical and magnetic properties of copper nitride thin film was systematically studied.
From Table.2, the datum shows that the microhardness of Mn-doped copper nitride (Cu3N:Mnx) films increase with the content of Mn increasing, which indicates that the mechanical properties of copper nitride films could be improved by Mn doping, as consistent with Al-doped films concluded by Li[12].
More works are necessary to find the exact origin and the improvement of ferromagnetic properties.
Properties of Al-doped Copper Nitride Films Prepared by Reactive Magnetron Sputtering, J.
Online since: June 2024
Authors: Mothibeli Pita, Lebogang Lebea
Furthermore, corrosion tests were carried out to assess the effects of solutions (Ringer's solution and table salt (NaCl)) and immersion time on mechanical properties prior to and after corrosion testing [7].
Surface science is very interested in the adsorption of organic molecules at the metal/solution interfaces because it can drastically change the properties of metals' corrosion resistance [11].
In a recent study by Shahini et al. [22], the inhibitive properties of Nepeta Pogonesperma extract were examined in a 1 mol/L HCl solution.
However, it is worth noting that other factors are equally decisive in creating sustainable and robust corrosion protection, e.g., temperature, metal characteristics, solution corrosiveness, and type of inhibitor.
Al Hifadhi, “Effects of Heat Treatment on the Corrosion and Mechanical Properties of Stainless Steel 316L as Used in Biomedical Applications Effects of Heat Treatment on the Corrosion and Mechanical Properties of Stainless Steel 316L as Used in Biomedical Applications,” in 4th International Conference on Engineering Sciences (ICES 2020, 2020. doi: 10.1088/1757-899X/1067/1/012142
Online since: December 2012
Authors: Jiang Miao Yi, Dong Qiang Gao, Fei Zhang, Huan Lin
Optimization of DVG850 Dual-screw Worktable System Based on ANSYS Workbench Jiang-miao Yi, Dong-qiang Gao, Fei Zhang, Huan Lin Institute of Mechanical & Electrical, Shaanxi University of Science & Technology Xi’an 710021, China Yijm0911@163.com 429089504@qq.com Keywords: worktable system, dual-screw transmission, ANSYS, modal analysis Abstract.
In traditional single-screw worktable system, the system is always subjected with torque because the driving force and force-bearing point of the workpiece always change with the processing path, so its performance may be affected.
So performance of machine may be affected.
When the finite element modeling of worktable system of the DVG850 high-speed vertical machining center is established, main load bearing parts are retained their original structure and shape and some non-load bearing parts are simplified based on reflecting their mechanical properties.
The comparison graph is shown in figure 2 The main factor to affect the dynamic characteristics of the worktable system is the low-order natural frequency of the worktable system.
Online since: July 2014
Authors: Xiao Hua Ye, Yu Wan Cen, Liang Wu, Ye Ye
Impact performances are studied when some factors such as feedback pressure, pipe length and flow rate are changed.
The effects that main parameters have on the impact property are studied, where some main parameters are changed.
The pressure in the nitrogen chamber will be affected by the stroke length of the return stroke, and different pressures in the nitrogen chamber are detected by PLC.
Research and analysis of the simulation results The effects of impact properties, which include changing the feedback pressure, the length of the oil pipe and the flow rate, are studied.
References [1] Xinlong Duan: Construction Mechanization ,3(2000),p59~61(In Chinese) [2] Guoping Yang: Construction Mechanization ,4(2001),p22~25(In Chinese) [3] Dinjun Zhang: Jiang Su Metallurgy, Vol.36(2008),p4~6(In Chinese) [4] Yongling Fu and Haitao Qi: LMS Imagine Lab AMESim(Advanced Modeling Environment for Simulation of engineering systems)(BEIHANG UNIVERSITY PRESS, China 2011)(In Chinese) [5] Guoping Yang and Yubao Chen: Mechanical Engineering Research, Vol.2(2012),p46~51(In English) [6] Xiaohua Ye,Xiaolong Miao and Yuwan Cen: Mechanical and Electrical Technology IV,Vols.229~231(2012),p1697~1701(In English)
Online since: August 2017
Authors: Xin Yong Yan, Bing Hua Liu, Shi Hua Hao
Study on Perez [2] shows that the mechanical properties of TIPA on hydration of Portland cement paste did not improve, but improve the strength of mortar and concrete, mainly because it exsits an interfacial transition zone between sand, aggregate and cement paste.
The relationship between the initial structure and mechanical properties of TEA and cement was studied by Ma Baoguo et al. [19] .It was found that critical amount of TEA was 0.02% and 0.15% respectively.
Factors determine the grinding effect of organic substances is functional groups of the type and quantity of alcohol, alcohol amines can significantly reduce the cement residue, the fluidity of the cement will increase with growth of the hydroxyethyl number.
Abo-El-Enein, Rheological Properties of Cement Pastes Admixed with Some Alkanolamines, Cem.
He, Effect of single component grinding aids on the properties of cement, (in Chinese).
Online since: December 2014
Authors: Dominika Lehocka, Slavomir Hric, Jan Carach, Filip Murgas, Peter Pastucha
This principle is commonly used up today in mass-production or prototyping of a product. [1,2] The cost of manufacturing moulds depends on a very large set of factors ranging from number of cavities, size of the parts (and therefore the mould), complexity of the pieces, expected tool longevity, surface finishes and many others.
So, the optimal setting of the production process is a crucial factor that affects the quality, cost and productivity of injection moulding. [3,4] Studied component for injection moulding was intended to serve as a stopper in the automotive spotlight and it should be made ​​from material Dyblend from German company Hoffmann + Voss.
(Fig. 8) Fig.8 3D model and real manufactured mould form Conclusions The cost of manufacturing moulds depends on a very large set of factors ranging from number of cavities, size of the parts (and therefore the mould), complexity of the pieces, expected tool longevity, surface finishes and many others.
Majernikova: Analysis of variance of mechanical properties of sheets as the input parameters for simulation of processes, In: Acta Metallurgica Slovaca, Vol.18, no.2-3 (2012), p. 109-116 [4] H.C.
Cillikova: Construction of manufacturing machines, current trends, Mechanical Engineering, Vol.12, No. 11 (2008), p. 8-9
Online since: September 2022
Authors: Kanin Wajanasoonthon, Amnart Suksri
Significant thermal properties of nanofluids have been improving depends upon fluid-based properties, nanoparticle's thermal conductivity, and the concentration of nanoparticles.
However, the electrical properties of insulation material will change gradually during operation.
Rajab et al. studied the aging properties of PFAE, M182, FR3, and mineral oil.
Analysis of Factors Affecting Temperature Rise of Oil-immersed Power Transformer.
Properties of thermally aged natural esters used as insulating liquid.
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