Search results

In the field of high-pressure waterjet cleaning, the research is focused on the high-pressure waterjet device properties [6-7] and jet parameters [8-9].
Experimental Research of Influence Factors on Combined Breaking Rock with Water Jet and Mechanical Tool [J].
China Mechanical Engineering, 2013, 24(8): 1013-1017
Mechanical Engineer, 2009, (11): 33-36
China Mechanical Engineering, 2006, 17(S2): 89-95

Knowledge about the microstructure and properties of the individual components of concrete have a relationship that is useful for controlling the behavior of concrete.
Sea water or water quality is not a factor affecting corrosion in concrete but corrosion is a factor that affects the permeability of concrete and the lack concrete cover [1].
Thus the sea water does not affect the formation of CSH.
Mechanical, Microstructure and Rheological Characteristics of High Performance Self-Compacting Cement Pastes and Concrete Containing Ground Clay Bricks.
Concrete: Microstructure, Properties and Materials, 3rd Ed, McGraw-hill_Professional

Q= 0.25L/min, 40 min v= 8 m/s, 40 min (a) Integrity factor vs. slurry supplying Q (b) Integrity factor vs. velocity at polishing point v Fig. 7 Polishing surface integrity factor KR vs. slurry feeder, velocity At the same time, the wafer surface roughness Ra during polishing obtained under the same polishing conditions were characterized by Surface roughness measuring instrument (Surfcom 480A, Tokyo Seimitsu Co., Ltd.).
Comparing Fig. 9 with Fig. 7 and Fig.8 shows that the process parameters affect the surface morphology just through the pad surface status.
In addition, the chemical reaction occurs in general between the solvent of slurry and the work material during silicon wafer polishing to change the mechanical properties of the wafer surfaces.
(3) it is clear that the high slurry supply generates a surface of poor surface roughness, and larger MRR, but the defect factor introduced to indicate the surface topography is affected significantly by the process parameters; the lowest value of the factor can be obtained on a optimum values
Microelectronic Engineering, Vol. 56(1-2) (2001), p. 109-115 [2] Jianxiu Su, Renke Kang, Dongming Guo: Technology analysis of wafer chemical mechanical polishing in the manufacture of ULSI.

This research focuses on preparing lunar mare (LX-M100) and highland (LX-TH100) simulants with different particle size fractions to develop a tribological model for further investigation of their frictional properties.
Methods such as the Discrete Element Method (DEM) and Finite Element Analysis (FEA) allow for detailed simulation of interactions between regolith particles and materials, considering factors like particle size, shape, distribution, and mechanical properties to provide a comprehensive understanding of abrasive wear mechanisms [4].
PTFE seal materials were tested against stainless steel under lunar regolith conditions in Barkó et. al.’s (2025) study, and regolith size categories affecting wear and friction coefficient were determined for this system [6].
The chemical composition in the form of total oxides and physical and terra-mechanical properties are described in Table 1 and Table 2 respectively.
Physical and terra-mechanical properties.

By engineering the organic chemistry of polymers, material properties can be expanded beyond limits, to include optical, electrical and mechanical properties and heat resistance.
Unique mechanical properties of polymers allow waveguide formation using unconventional techniques, such as molding, casting, stamping and embossing, which are low-cost and rapid.
By adding an aromatic ring to a polymer, properties of the polymer can be enhanced or improved, such as excellent thermal stability and other properties.
Although properties of polymers that were studied do not possess all required properties, trade-offs among these properties can provide tailor-made polymers for specific integrated-optical-device-applications or for device-performance optimization.
Summary Oftentimes, materials are limiting factors in the success of a component.

Main factors can affect the quality of foaming board including Al/P (mole ratio of Al(OH)3 and H3PO4 ), M/P (mole ratio of all metal cation and phosphorous atoms) and content of carbonate.
According to these factors, orthogonal test was used to optimize the raw material ratio.
The orthogonal experiments were designed based on four factors and three levels, which choose 50g H3PO4(85%) as benchmark, Al(OH)3, MgO, ZnO and CaCO3 as influence factors.
Change curves of three properties Comparing several properties of modified and unmodified UF composite materials, we found that PVA modifier can significantly improve the compressive strength.
Sohn, An experimental study on thermal properties of composite insulation, Thermochim.

Analysis On Wet Multi-Disc Brake Based on ABAQUS JIANG Jun-sheng College of Mechanical and Electrical Engineering, Weifang University, Shandong, China Jiangjunsheng321@126.com Keywords: Wet Multi-Disc Brake, Complex Modal Analysis Theory, Noise Analysis, ABAQUS Abstract.
Through complex modal analyzing on the wet multi-disc brake, obtain the main factors of brake noise during braking and provide improved measures to decrease the brake noise combined with analysis results.
Through complex modal analyzing on the wet multi-disc brake, obtain the main factors of brake noise during braking and provide improved measures to decrease the brake noise combined with analysis results.
According to the thermal physical parameters of material in Table 1, define the performance parameters of the materials in the Property module of ABAQUS, and endue them with the dual disc and friction sheave.
Uneven pressure distribution leads to uneven friction temperature distribution, and the local features of friction temperature distribution in turn affect the interface stress distribution.This is the main reason why the brake has uneven wear and braking vibration and noise.

We found that the phase stability was affected not only by grain size but also by residual stress field, which could be quantitatively measured by Raman piezo-spectroscopy and controlled by sintering temperature.
Introduction: 3 mol% yttria stabilized tetragonal polycrystalline zirconia (3Y-TZP) and alumina have been extensively used for orthopedic implants such as hip and knee joint prostheses due to its excellent mechanical properties, high wear resistance and superior biocompatibility [1, 2].
We attempted to rationalize the factors affecting phase stability.
Therefore, it is important to manufacture zirconia materials at validated process, considering both mechanical properties and stability in the biological environment.
Vol.13 (1978), p.1464-1470 [7] E.M.Anastassakis: Capter 3 in Dynamical properties of Solids; ed by Horton GK,Maradudin AA (North-Holland Publ Co.) 1980 [8] D.Michel, M.T.Van Den Borre: Advanced in Ceramic Vol24 (1998), p.555-562 [9] G.Pezzotti: J Raman Spectrosc.

In ordinary fuzzy control, linear quantitative method is usually adopted by changing the quantitative factors to change the discussing domains.
Definition of quantification factors is: (1) As shown in fig.2 (a), once the quantitative factors have been selected, any value of language variables can be counted as a certain element on the domain.
Results and analysis of experiments Change the fusion width to obtaine the welding current and welding properties.
Journal of mechanical engineering, (2000.8) [2] ChenDan, zhang bees, HeGuiMing.
Fuzzy control principle and application of mechanical industry. (2005).1 press

Based on the simulation and vibration experiment, the mechanics dynamical properties are proved, the main destroy form and locations are analyzed and indexed.
Thus affects seriously the work stability, even causes the electrical machinery damage.
Through selecting these essential spare part mechanical property, gaining a more rational structure can avoid synonym.
by electric machine design[5], In long electrical machinery, dangerous section possibly is in middle part of core applied by torque and bending moment, according to the third strength theory or maximum tangential normal stress theory, design stress of revolution axis on steel can not surpass 245 Mpa,but the yield limit of the steel is 353Mpa.so Its safety factor n=353/245=1.44,is amongst the prescriptive safety factor 1.3~1.5.
Contrastive analyses to rotor with a series of length of a vertical motor are carried out, simulation parameters are gained, the result of the simulation showed that the influences of these parameters on strength would work on the dynamical properties of the rotor.