Search Options

Sort by:

Sort search results by

Publication Type:

Publication Type filter

Open access:

Publication Date:

Periodicals:

Periodicals filter

Search results

Online since: January 2014
Authors: Xiao Qing Zhao
Considering the structure characteristics of three coordinate measuring machine system, they are the important error sources that affect the precision that driving system, measuring system, computer system and other factors.
Dynamic errors and structural properties of the measuring machine, for example, mass distribution properties, rigidity of the components, the damping characteristics.
Assuming measuring machine in motion acceleration experienced, Load / BC Set Scale Factor = 384, ie y racks and ancillary component quality.
Mechanical Error in turn contains a quasi-static and dynamic errors[4].
[3] Dong Chensong, Guoxiong andMuyu Hai, China Mechanical Engineering, CHINA MECHANICAL ENGINEERING,1998,7(9)
Online since: January 2013
Authors: Jin Li, Han Yang Li, Ping Yuan, Yun Dong Zhang
By altering the specific parameters of the comb structure, we studied the reflective properties of the TM light in different structures.
Figure 2 shows us the reflective properties of the P-polarized light on the silver comb-like nano-grating structures.
In this case, we can compare the light properties of the structure with the silver nano-grating structures shown in Figure 2.
Figure 4 presents a silver-SiO2 comb-like nano-grating structure and the reflective properties of the TM light on it.
But the intensity can be affected inevitable.
Online since: March 2010
Authors: Jian Sha Lu, Guo Zhong Chai, Xiu Lin Li, Hong Tao Tang
To deal with problem of manufacturing system stability caused by uncertain factors in discrete production process, holon was introduced to manufacturing execution system (MES).
Model design of production factors as order, resource, raw material, product and management factors as optimize, execution was described amply.
According to design procedure given by literature [7], basic holon are designed to correspond with production factors: a.
It offers physical property and the genetic attribute of material.
Physical property depends on the material itself.
Online since: October 2014
Authors: Jakub Wieczorek, Jerzy Łabaj, Grzegorz Siwiec, Agata Blacha-Grzechnik
Main restrictions of polymer application include their low thermal stability that leads to changes in mechanical properties at even 100ºC, ability to accumulate electric charges that may cause sparking, low thermal conductivity that impedes cooling of the operating systems [1-6].
The addition of reinforcing elements usually improves the mechanical, tribological, physical and thermal properties of metals and alloys, thereby extends the range of their applications and possibility of utilization [9, 10].
Changes in the wear resistance with increased reinforcing phase fractions are more distinct than the friction coefficient changes, which suggest that the main factor affecting the friction coefficient value is the matrix material (here: PTFE) while the wear level depends on the reinforcement.
Wieczorek: Properties of polymer-silver particles composites.
Śleziona, Tribological properties of silver matrix composites, Archives of Foundry Engineering 7 (1) (2008) 181-184
Online since: October 2013
Authors: Ji Chang Cao, Shu Ting Wu, Yang Fan Li, Wei Feng
It is one of the most essential factors to take into account when choosing forging equipment.
Su [3] applies ANN to predict the forming load and mechanical property of magnesium alloy under hot extrusion.
Tang predicts the mechanical properties of magnesium alloy by an improved neural network model.
There are many factors that affect the forming load, such as the initial diameters of relief-hole for the billet (d0), punch velocity (v), the friction factor (m) of the interface between billet and tools.
Therefore, 16 simulation calculations were carried out to investigate the effects of the four factors.
Online since: October 2012
Authors: Chun Yao Hsu, Chung Chen Tsao, Ding Yeng Chen, Che Hsiung Tsai, Mao Yong Lin
Introduction Nickel superalloy has been widely applied to escape valves, furnace equipment, petroleum, nuclear energy industries and corrosion resistant environments because of its superior properties.
Good mechanical properties together with its severe work-hardening tendency lead to a high cutting force.
This work uses the orthogonal array in the Taguchi quality design to determine significant machining factors for increasing experimental efficiency.
Depth of cut (σ = 38.40 %) and feed rate (σ = 22.59 %) appear as the most significant cutting parameter affecting roundness.
The estimated S/N ratio Ypredicted using optimal level design parameters can be calculated as [15] : Ypredicted (8) where is the total mean S/N ratio, is the mean S/N ratio at the optimal level, and k is the main design parameter number affecting the quality characteristic.
Online since: August 2020
Authors: Katsuyuki Kida, Syunsuke Mizozoe
It was discovered that subsurface cracks distributed around shear stress peak, and flaking failure was dominated by subsurface shear stress. 1 Introduction PPS (Poly-phenylene-sulfide) has excellent mechanical properties such as water resistance and corrosion resistance.
Due to such mechanical properties, PPS bearings are widely used in food processing machines and washing machines.
(2) Shear stress is affected by friction between subsurface crack faces and shear stress works as crack driving force.
Lundberg and Palmgren, Dynamic capacity of rolling bearing, Acta Polytechnica, mechanical Engineering.
(Editor-in-Chief), Stress intensity factors Handbook Vo4, 2001, pp1072-1075, The society of the Materials Science, Japan & Pergamon Press
Online since: August 2014
Authors: A.M. Mustafa Al Bakri, Romisuhani Ahmad, J. Nur Ain
The factor that affects the production of geopolymer ceramic such as source materials, curing time, curing temperature and sintering temperature in the ceramic processing is discussed.
Xie et al. [31] studied the mechanical properties of the leucite ceramic derived from the geopolymer.
The mechanical properties and microstructure of metakaolin based geopolymer mortar samples were investigated by Kuenzel et al., [35].
To enhance the mechanical properties, fine silica sand was added as filler particles.
Rakesh, Mechanical activation of fly ash: Effect on rection, structure and properties of resulting geopolymer, Ceram.
Online since: July 2021
Authors: Hans Bertram Fischer, Victoriya Petropavlovskaya, Kirill Petropavlovskii, Tatiana B. Novichenkova, Olga V. Aleksandrova
Secondly, from the position of regulating their properties [2, 4, 6].
Enrichment allows you to purposefully form the properties of building compositions - cement, concrete, ceramic, silicate.
Studies of the dependence of the properties of the modified cement stone with the ash product were carried out using a two-factor experiment (tabl. 4).
The introduction of an aluminosilicate ash product affects the physical and mechanical properties of the modified cement stone not only in terms of its mechanical role.
Abdelgader, Palm Oil Fuel Ash-Based Eco-Efficient Concrete: A Critical Review of the Short-Term Properties, MDPI 14(2) (2021) 332
Online since: October 2016
Authors: Alexander Pesin, D.O. Pustovoytov
Contact friction is one of the main factors that affect the shear strain during HRDSR.
Further experimental investigation of microstructure and mechanical properties of Al 5083 sheet processed by HRDSR is required.
Park, Effect of speed-ratio on microstructure, and mechanical properties of Mg-3Al-1Zn alloy, in differential speed rolling, J.
Ko, Effect of differential speed rolling strain on microstructure and mechanical properties of nanostructured 5052 Al alloy, J.
Krallics, Microstructure and mechanical properties of Al 7075 alloy processed by differential speed rolling, Periodica Polytechnica Mechanical Engineering. 56 (2012) 111-115
Showing 12591 to 12600 of 25943 items