Search results

Workpiece material: 45 steel specimen (Ф30mm, h5mm).
Wang: Materials Processing Technology, Vol. 192-193 (2007), pp.276-280
Tian: The Study of Lapping Mechanism and Surface Quality on Solid Abrasive Lapping (MS., Changchun University of Science and Technology, China 2005, pp.20-25
Tian: Journal of Changchun Institute of Optics and Fine Mechanics, Vol. 24(2001) No.01, pp.25-27.

When the uneven stress and material defects of the shaft are superposed, that is the main affecting factor of spindle bending.
At the same time, we know that the maximum stress of the wheel hub does not exceed the yield limit of material and the impeller is still within the scope of elastic deformation after completing interference fit.
The maximum stress of the concentration region does not exceed the yield limit of material.
Liu: Mechanical Science and Technology, Vol. 1 (2004), pp.15
Wu: Journal of Mechanical Strength, Vol. 28 (2006), pp.282

Other areas include Advanced Structural Analysis, Connection Design, Raw Materials, Design Guides, to name but a few.
Analysis model is the finite element method model, for example, node, element, section and material, besides, analysis model also including post-proceeding data, which usually referred to the displacement and stress.
Building Science, 2003. 19: p. 62-64
CHINA CIVIL ENGINEERING JOURNAL, 2007. 40(2)

Fig. 1 A stepped shaft Fig. 2 Cutting force induced errors fitting According to the empirical formula, the cutting force F can be calculated as following (4) where CF denotes the coefficient related to the work piece material and the working conditions. xF, yF , zF is the index related to the depth of cut, the feed rate, and the spindle speed, respectively.
Acknowledgements The paper is Sponsored by the Important National Science & Technology Specific Projects of “Top Grade CNC Machine Tools and Basic Manufacturing Equipment” (No.2009ZX04014-22).
Yang, et al: Chinese Journal of Mechanical Engineering, in press (2011) [3] S.
Ratchev et al: Advanced Materials and Processing Technologies (2000) [5] R.J.

Final set (min) Compressive strength(MPa) CaO replacement (%) Fly ash replacement (%) 3d 28d 387 134 188 30.3 54.0 5.2 7.0 Table 3 The chemical composition and physical property of mineral admixtures Mineral admixtures Chemical composition Physical property SiO2 (%) Al2O3 (%) Fe2O3 (%) CaO (%) 0.045mm screen residue(%) Density (g/cm3) Specific surface area (m2/kg) Fly ash 51.56 23.11 8.67 2.34 0.08 2.33 431 Slag 33.68 14.85 0.67 38.04 5.3 2.88 384 Silica fume 95.98 0.17 － － 0.0 2.11 22000 Table 4 The mixture proportions of concrete Group Water (kg/m3) Cement (kg/m3) Fly ash (kg/m3) silica fume (kg/m3) slag (kg/m3) Sand (kg/m3) Coarse aggregate (kg/m3) A0 130 400 0 0 0 790 1185 B1 130 280 120 0 0 779 1168 C1 130 200 200 0 0 770 1155 C2 130 200 180 20 0 769 1154 C3 130 200 120 20 60 775 1162 D1 130 120 280 0 0 762 1148 D3 130 120 140 20 120 772 1158 Based on the mix design method of high-performance concrete designed by Malhotra[9], the water content is 130kg/m3 and the binding material
Acknowledgements The financial support received from the Key Project of Guangxi Science and Technology Lab Center (LGZX201002) is gratefully acknowledged.
Poulsen, et al, ACI Materials Journal, 93 (1996) 602-608 [6] L.

The experimental material came from Zhanjiang Guangdong province of China, such as Eucalyptus broken wood, eucalyptus bark, sugar cane leaves and bagasse.
Acknowledgement This work was supported by National Basic Research Program of China(973 Program) (2011CB201500); the National Natural Science Foundation of China (No. 50906025); the Fundamental Research Funds for the Central Universities(2012ZZ0022); Key Laboratory of Efficient and Clean Energy Utilization of Guangdong Higher Education Institutes (KLB10004); Key Laboratory of New Lithium-ion Battery and Mesoporous Materials (20110213); Guangdong Provincial Key Laboratory of Atmospheric environment and Pollution Control.
Wei-jun LIU, Peng-cheng LI, GUO Yan, Journal of Shanghai University of Engineering, Vol 25(2011) p. 287-291.

Introduction Following energy crisis and environmental degradation constantly aggravated throughout the world, the ocean which has abundant resource got the attention of the world, various countries in the world had put into a large number of manpower and material resources to research and development ocean resource， our country also made unremitting endeavor.
Applied Mechanics and Materials, v 300-301, p 338-343, 2013 [2] Li zhen Zhang, Xiao sheng Yang, Shi ming Wang, et al.
Hubei Agricultural Sciences, 2011, 50(01):161-164
Polinder, Modelling and test results of the Archimedes wave swing, Proc. of the Institution of Mechanical Engineers, Part A, Journal of Power and Energy, 220-8, 2006, pp. 855-8G8 [4] Clean energy from power buoy of ocean power technologies [EB/OL]. [2008-11-07].

Structural Strength Analysis of Main Crane Pedestal of the Jack-up Wind Turbine Installation Vessel Xiang Zhu1,2, a, Yongsheng Tang2 , Feixiang Li1 and Yao Zhao1 1 School of Naval Architecture & Ocean Engineering, Huazhong University of Science & Technology, Wuhan 430074 , P.R.China 2 Hudong-Zhonghua Shipbuilding (Group) Co.
The material used in the main hull and main crane pedestal is AH36 high strength steel.
Table 1 Material properties of the structure Name Pedestal Structure Ship Structure Density [Kg/] 7850 7850 Young’s Module [N/] 2.1e5 2.1e5 Poisson’s Ratio [-] 0.33 0.33 Yield stress [N/] 355 355 Boundary conditions For the considered model, the fixed boundary conditions at the cut end of the hull structure are applied as presented in Fig. 3.
This table shows all stress results to be within the maximum allowable stresses according to the material types, except that the stress concentration at the section of hull and pedestal’s link region in Load case 3 and 5.
Yan, Whole hull’s structural strength analysis of offshore wind turbine installation vessel, Journal of Ship Mechanics. 1-2 (2012) 136-145

Experimental NaA zeolite was synthesized by the hydrothermal crystallization process using sodium aluminate and sodium metasilicate pentahydrate as a precursor material.
Djemal: Materials Science Forum Vol. 636-637(2010), p. 1389
Banerjee: Journal of Heat Transfer Vol. 137 (2015), p. 091013.

In EPC projects, various kinds of materials are usually procured by centralized purchasing pattern.
Although this pattern improves the efficiency of the procurement, material suppliers are responsible for the transportation of the materials.
Because material suppliers often lack professional logistics transportation technology, it is difficult for them to guarantee the timely delivery of materials and to achieve economy of scale in the transportation.
Third Party logistics provides us with an effective way to achieve the scale economy of materials transportation.
Salem: Journal of Management in Engineering, Vol.22 (2006), No. 4, pp.168-175