Search results

Application of New Materials in Water Hydraulic Pump Dong Wang , Chengyi Huang, Junming Huang Mechanical Engineering College, Wuhan Textile University , Email: 1983058575@qq.com Keywords: water hydraulics, piston pump, new materials, test Abstract.
Piston pump is one of the most frequently used hydraulic units in recent engineering technique.
When using raw water as lubricant, according to raw water’s chemically active nature, low viscosity, poor lubrication and high vapor pressure, the materials used in are in key role to obtain long lifetime for a water hydraulic pump.
So, material selection, optimize structure and manufacturing should be considered as key problems in pump (motor) design.
[2] Brookes, C.A., The Development of Water Hydraulic Pumps Using Advanced Engineering Ceramics. 4th Scandinavian International Conference on Fluid Power, 1995: 965~977

The performance of inorganic materials is critical in structural design and engineering applications.
Testing techniques and evaluation methods are are therefore keys to ensuring the quality and reliability of inorganic materials and components.
The main theme of this special collection is materials properties and testing techniques, and covers most aspects of testing techniques as applied to the mechanical, chemical, physical properties and microstructures of ceramics, glass and concrete.
The work therefore offers an insight into cutting-edge developments in testing techniques in the area of inorganic materials.

The paper carries out a classification of the mega-accidents in electrical engineering, and conducts a three-dimensional analysis of the accident risk in electrical engineering.
Wu (2008) [7] analyzed several typical OPGW failures that had happened during installation and operation. 2 Sources and Relations of Risk in Electrical Engineering The risk of electrical engineering accidents can be summarized into three risk layers of the sources: Risk sources from organizational layer, material layer and individual layer.
Risk Sources of Electrical Engineering Accidents Relation Diagram 3 The Classification of Electrical Engineering Accidents Based on case study and the logic of Figure 1, here break down the risk sources of electrical engineering to layers.
While the risk sources of the resource are mainly raw materials, natural attributes, such as flammable and explosive hydrogen gas, dissolution of local water and etc.
Risk Sources Layers of Electrical Engineering Accidents.

Yang1 1 College of Mechanical Engineering, Taiyuan University of Technology, Taiyuan Shanxi China a sunhuanwu@163.com Keywords Abstract.
As a key parameter, the material removal rate has a great impact on the finishing capabilities and the final surface roughness.
The material removal rate is a key index to the FMA finishing, and has great impacts on the finishing performances, finishing capabilities and the final surface roughness.
Yang: Advanced Materials Research, Vol. 24-25 (2007), pp. 273-278
Yang: Key Engineering Materials, Vol. 304-305 (2006), pp. 579

Permeability and Porosity of Tight Rock Materials under Conditions of High Temperature and High Pressure Yinger Deng State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu, Sichuan 610059, China dengye6789@sina.com, 546730457@qq.com Keywords: High Temperature and High Pressure, Tight Rock Materials, Permeability, Porosity, Mechanism Abstract.
The results can provide engineering geological disposal of high level radioactive waste with basis.
Fig. 1 Schematic diagram of flow chart of experimental facility Experimental Materials and Method The main experimental materials were tight rock and distilled water.
Results show that there are some micro-cracks in the tight rock materials although the experimental model samples of tight rock materials have no macroscopic cracks.
[5] Suping Peng, Zhaoping Meng and Hu Wang: Chinese Journal of Rock Mechanics and Engineering Vol.22 (2003),p.742 (In Chinese)

The situation will lead to non-uniform spray interface and waste fiber materials in the construction process. 2) All kinds of raw materials are not fully mixed through the spray gun.
Social benefit analysis Inorganic fiber composite spray insulation, fireproof, sound-absorb is a new technology, compliance with national industrial policy "energy savings ", which is insulation engineering and fire proof engineering technology.
Conclusions The integration of new technology research on composite inorganic fiber acoustic insulation spray set in engineering practice, repeatedly demonstrated the difficulties and key construction process in the construction process.
Through a combination of theoretical analysis and engineering experience, integrate fireproof, sound-absorbing, insulation with energy-saving, firmness.
References [1]Donjon Tan, Ying Wang, Penki Wang, Japing Zhao Applications and problems of non-combustible exterior mineral insulation materials [J], New Building Materials, 2011 (11):35-37

Optimization Design of Geotechnical Engineering Based on Reliability and Lingo ZHENG Yi 1, 2,a, JIA Jin-qing 1,a, XIONG Wei-shi 3,a, SHEN Xiao-jun 4,a, GAO Fei 4,a and LI Li2,b 1 State Key Laboratory of Coastal and Offshore Engineering, DaLian University of Technology, Dalian China 2 LiaoNing Building Materials Inspection Institute, Shenyang China 3 ChongQing Traffic Construction (Group) Limited Liability Company, Chongqing China 4 ChongQing Center for Test of Highway Engineering, Chongqing China adandongzy@126.com, blili6899@163.com Keywords: Geotechnical Engineering, Reliability, optimization design, nonlinear programming, Lingo.
So it is extremely necessary to put forward optimization design of geotechnical engineering.
So, it is raised that optimization design of geotechnical engineering based on reliability in this paper.
So its applying research on these ways will push forward application of engineering optimization design based on theory of reliability in geotechnical engineering.
Chinese Journal of Rock Mechanics and Engineering. 2002, 21(5):736-739. in Chinese

Acknowledgements This paper is supported by the 2012 Ladder Plan Project of Beijing Key Laboratory of Knowledge Engineering for Materials Science (No.
Chu, et al: Materials Science and Engineering C, Vol. 29 (2009) No.6, p. 1950–1958
Chen: Polymer Materials Science and Engineering, Vol. 28 (2012) No.2, p.174-178
Chu, et al: Materials Science and Engineering: C, Vol. 29 (2009) No.6, p.1950–1958
Zhang: Polymer Materials Science and Engineering, Vol. 27 (2011) No12, p.167-171

Since "Seldom have so many independent studies been in such agreement: simulation is a key element for achieving progress in engineering and science" [1], we attempt to outline briefly new 21st century computational challenges and their potential impact on our future.
Simulation-Based Engineering & Science Simulation Based Engineering Science (SBES) is a new discipline that involves the use of computer modeling and simulation to solve mathematical formulations of physical models of engineered and natural systems.
Certainly simulation is a key element for achieving progress in biomedicine, energy and environmental sciences, advanced materials, and product development, to mention a few.
The present-day designof advanced materials can serve as an example of demand for multiscale modeling and simulation where traditional disciplinary barriers vanish and physical phenomena of interest cover a 10-order of magnitude space range.
Oden, Verification and validation in computational engineering and science: basic concepts.

Effect of Crack Statically Growing on Stress and Strain at Crack Tip for Power Hardening Materials He Xue 1, a, Min Qiao 1,b , ZhenWen Wang 1,c , XiaoYan Gong 1,d 1 School of Mechanical Engineering, Xi’an University of Science and Technology, 710054, China axue_he@hotmail.com, bqiaom_1989@163.com, c2007.wzw@163.com , dgongxymail@163.com Keywords: crack statically growing; residual plastic strain; power hardening materials; elastic-plastic finite element Abstract.
Quantitative predicting EAC growth rate in key nuclear structural materials is one of the key issues of the long-term safe operation of nuclear power plants [2].
The researches show that EAC growth rate was dominated by the stress and strain at the crack tip in key structural materials of nuclear power plants [3].
Numerous austenitic stainless steels and nickel-based alloys are power hardening materials, which is widely used in key structural materials of nuclear power plants.
Acknowledgement This work was financially supported by the National Natural Science Foundation of China(11072191) References [1] HAN E H, WANG J Q, WU X Q: Acta Metallurgica Sinica Vol.46 (2010),p.1379 [2] CHOPRA O K, CHUNGA H M, KASSNER T F: Nuclear Engineering and Design Vol. 194 (1999),p.205 [3] GUAN Y X, Dong C F, LI Y: Science and Technology Review Vol. 29(2011),p.17 [4] PENG Q J, KWON J, SHOJI T: Journal of Nuclear Materials Vol. 324 (2004),p.52 [5] HALL JR M M: Corrosion Science Vol. 50(2008),p.2902 [6] SHOJI T, LU Z P, MURAKAMI H :Corrosion Science Vol. 52(2010),p.769 [7] XUE H, SHOJI T: Transactions of the ASME-Journal of Pressure Vessel and Technology Vol. 129(2007),p.254 [8] XUE H, ZHAO D, PENG Q J: Journal of materials Vol. 5(2011),p.18 [9] XUE H, LI Z J, LU Z P: Nuclear Engineering and Design Vol. 241(2011),p.73 [10] XUE H, OGAWA K, SHOJI T: Nuclear Engineering and Design Vol. 236(2009),p.628