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Material usage must be optimized through the whole product both to keep material costs down and to ensure the sufficient mechanical properties of the product.
In DFM process material and manufacturing methods were selected.
Klärner, Lightweight components for energy-efficient machine tools, CIRP Journal of Manufacturing Science and Technology 4 (2011) 148-160, https://doi.org/10.1016/j.cirpj.2011.04.002
Klaus, Metal forming techniques for lightweight construction, Journal of Materials Processing Technology 177 (2006) 2-7, https://doi.org/10.1016/j.jmatprotec. 2006.04.085
[11] Xintao Cui, Hongwei Zhang, Shuxin Wang, Lianhong Zhang, Jeonghan Ko, Design of lightweight multi-material automotive bodies using new material performance indices of thin-walled beams for the material selection with crashworthiness consideration, Materials & Design 32 (2011) 815-821, https://doi.org/10.1016/j.matdes.2010.07.018.

It is known that nanocomposite materials are formed by mixing two or more materials, and one of them has to be at the nanoscale, to control and develop new and improved materials that present nanostructures and, consequently exhibit novel properties that are absent in the constituent materials.
R., Materials Research, 11, 1-4, 2008 [13] Rodrigues T.
L., Moreira A.M., J. of Materials, 61, 34-38, 2009 [14] Silva E.O., Tavares M.I.B., Nogueira J.S., Journal of Nano Research, 4, 117-121, 2009 [15] Arantes T.
R., Polymer 45, 7639-7645, 2004 [17] Alexandre M., Dubois P., Materials Science and Engineering, 28, 1-6, 2000 [18] Tavares M.
London: Applied Science

Different from extensive reading, the course of listing and speaking focuses on the practice of materials.
The textbooks are rich in the material of westerners’ lives.
Acknowledgements This work was financially supported by the Science Department of my work unit---Jilin Teachers’ College of Engineering and Technology.
Factors Affecting Teachers’ Use of Information and Communication Technology: A Review of the Literature [J], Journal of Information Technology for Teacher Education (2009)
Implementation and Effects of One-to –One Computing Initiatives: A Research Synthesis [J], Journal of Research on Technology in Education, (2006).

., Sakai, Japan 2 Department of Materials Science, Graduate School of Engineering Osaka Prefecture University, Sakai, Japan 1a) haram@sic.shimano.co.jp, 1b) mtdken@sic.shimano.co.jp, 1c) iwait@sic.shimano.co.jp, 1d) kiharam@sic.shimano.co.jp, 1e) yamauti@sic.shimano.co.jp, 2f) takigawa@mtr.osakafu-u.ac.jp, 2g) higashi@mtr.osakafu-u.ac.jp Keywords: Corrosion resistance, Weather resistance, Anodizing, Anion resin, Mirror luster Abstract A new surface treatment technology for the aluminum alloys that exhibits not only high corrosion and weather resistance but also good mirror luster has been developed.
Introduction Anodizing is one of the most common aluminum surface coating methods. 1), 2) In the areas where appearance and functional aspects of aluminum products are important, a variety of ideas have been applied to surface treatment. for improving the wear resistance and corrosion resistance 3) and anodized aluminum is attracting a good deal of public attention as a clean, recyclable material. 4) While mirror luster and high corrosion resistance are required for products such as outdoor goods and high quality sporting goods to be used under a harsh environment, In order to provide A2014 alloy with high weather resistance and high corrosion resistance for outdoor use (CASS 3 cycle (172.8 ks), rating number 9.5 or greater), and good appearance with mirror luster unique to the metal (reflectance of 50% or greater) without increasing cost, a new processing technique (hereinafter called "electrolytic permeation") 5),6) that combines anodizing and electro-deposition
Kawabata: Journal of The Surface Finishing Society of Japan 60 (1997) 956-960. 2.
Ichikawa: Journal of The Surface Finishing Society of Japan 54 (2003) 794-797. 3.

Parametric defined material properties, generated mesh, defined contact and set contact parameters, defined boundary condition, defined solution set, etc. (3) User interface development: Carried out interface development use UIDL in LS-DYNA.
Start Defined material properties Parametric model building Mesh generation Satisfied1 Define contact and set parameters Boundary condition No Yes Solution set Solve Examine post-processing results Enter LS-PREPOST Examine stress, strain and dynamic display Examine stress, strain and dynamic identities End No Yes Static Dynamic Satisfied2 Satisfied3 Fig. 1 System developed flow chart Developed Menus and Interfaces.
Fig. 2 System main developed menus Developed interfaces in LS-DYNA: (1) Welcome interface: Basic Hypothesis, system introduction and operating instruction. (2) Material props interface: Input elastic modulus, Poisson ratio, density of road wheel and pin. (3) Solid model interface: Input relative dimensions and parameters of road wheel and pin. (4) Finite element model interface: Automatic generate finite element mesh by input general and local units size, also can automatic clear finite element mesh and pre-generate mesh, as Fig. 3 shows. (5) Boundary conditions apply interface: Define boundary conditions, also can clear and pre-define. (6) Rw solve set interface: Solution set. (7) Nodal solution interface: In static analysis, examine node stress, strain, contact stress and so on of contact analysis of road wheel and pin, as Fig. 4. (8) Element table solution interface: In static analysis, examine element stress, strain, contact stress and so on of contact analysis of road wheel and pin
References [1] Haifu Liu: Coal Mine Machinery Vol. 30 (2009), p. 192 [2] Xiaohuo Li, Ping Li and Chunsheng Liu: Journal of Heilongjiang Institute of Science and Technology Vol. 12 (2002), p. 1 [3] S.
Vijayarangan and Ganesan: Journal of Sound and Vibration Vol. 162(1993), p. 185 [4] Yueqian Jia: Mechanized Mining Technology Manual (Coal Industry Press, China 2001)

(3) In the formula, , , In the formula, and are the poisson’s ratio and elastic modulus of the cycloid gear and pin gear material respectively, and the both adopt the same material: , , and are the poisson’s ratio and the elastic modulus of the pin gear shell, and the material is HT200, , The total contact deformation of the meshing point between cycloid gear and pin gear and the meshing point between pin gear and pin gear shell along the direction of the normal is (the direction thereof is the same as ): The deformation by maximal contact force between cycloid gear and pin gear is: (4) In the position of the largest meshing force, and ; substitute the two formulas above into the calculating formula for profile curvature radius, and we can get:
Acknowledgement State Natural Sciences Fund Project “FA drive series research based on optimum tooth profile design theory” (50875029) References [1] Lixing Li, Tianmin Guan, Zifu Wang.
Machinery Engineering Journal. 1988(3): 24.28~32
Force analysis of output mechanism for cycloid drive, “Dalian Railway Institute Journal”, 1992

For example, due to its wide band gap and high thermal conductivity, SiC is an attractive material for high temperature operations [1].
Ni dots 50nm thick have been evaporated on the n+/p junctions in order to form the front contact, as well as on the p-type epilayer in order to form Schottky barriers on the unimplanted material.
Capano, Applied Surface Science, 184 (2001), 317-322 [4] A.
Poggi et al., ICSCRM 2003, October 2003, Lione (France) [5] Rybiki et al., Journal of Applied Physics, vol.78 (1995), no. 5, 2996 [6] A.A.
Rao et al., Solid-state Electronics, 47 (2003), 193 [8] Mitra et al., Journal of Applied Physics vol. 95 (2004), no.1, 69

Introduction Warm Mix Asphalt(WMA), which is originated in 1995, is a new type of road surface material developed rapidly against the background of energy shortage and global warming[1].The mixing and construction temperature of WMA is between hot mix asphalt (HMA,150~180˚C) and cold mix asphalt(CMA,normal temperature) due to using specific technologies or additives, and its performance could reach up to or be close to the HMA[2].
Virgin Materials SBS modified asphalt is used in the test, and its technical indexes can meet the requirements of Specifications of China[3].
Acknowledgements This work was financially supported by National Natural Science Foundation of China (50578016).
References [1] Hao Liu,Shufang Zhang,Changying Zhang and Zhangcheng Li:Municipal Engineering Technology, Vol.27(4) (2009),p.332~335 [2] Feng Zuo and Fen Ye:Journal of China and Foreign Highway, Vol. 27(6) (2007),p.164~167 [3] Technical Specifications for Construction of Highway Asphalt Pavement[S].edited by Research Institute of Highway Ministry of Transport of the Peoples Republic of China(2005),in press [4] Jian Wu:Journal of Highway and Transportation Research and Development,Vol.25(4) (2008),p.135 [5] Yuanfeng Zhu, Menglan Zeng,Shenghua Wu and Chaofan Wu:Highway Engineering,Vol.35(6) (2010),p.44

The natural frequency can be calculated as follows: The natural frequency of rolling ball is In the formula, is radius of ball [m], is material density [Kg/m2], is material elastic modulus [N/m2].
The natural frequency of bearing’s ring is In the formula, is node number, is radius between rotation axis and neutral axis [m], is material elastic modulus [N/m2], is moment of inertia about neutral axis [m4], is the quality of unit length [Kg/m].
Acknowledgment This project is supported by China Postdoctoral Science Foundation (20100471431) and National High Technology Research and Development Program of China (2008AA11A140).
[2] Jinlong Wang: Journal of Weifang University, Vol. 9, No. 6(2009), p. 4-6, in Chinese
[6] Guangzhou Zhao, Tianxu Zhang, Yuehuan Wang et.al: Journal of Systems Engineering and Electronics, Vol. 16, No. 3(2005), p. 502-509

Study on Mapping Algorithm from EBOM to PBOM for Chemical Tower in UG Chen Qingguo, Zhang Juncai School of Mechanical Engineering, Hebei University of Science and Technology, Shijiazhuang Hebei 050018,China email: chenqg66@126.com, email: zhjc666@126.com Keywords: Chemical Tower; EBOM(Engineering BOM); PBOM(Proeess planning BOM); Mapping; Processing Rule.
Aimed at the characteristic of tower structure and the existing problem in technical data management at present, the paper develops computer aided design on Bill of Materials (BOM) for chemical tower to improve the data management.
It concretely consists of the design information of parts in chemical tower, for example drawing number, specification, standard number, and material.
Chinese Journal of mechanical engineering, 2005, (4): 35-38
The International Journal of Advanced Manufacturing Technology[J],, 2003, (22): 3-7 [6] Wang Yaodong, HeYuqiang, Cui Hongbing etc.Development Of BOM system based on UG threee dimensional modeling.