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The density of material is ρ=7800 kg/m3, and the specific heat is c= 460 J·kg -1·K -1.
When the temperature reaches the critical value of the gear material, the gluing failure of spiral bevel gears appears.
Acknowledgement This research is subsidized by the National Science and Technology Major Project of China under grant No. 2009ZX04014-014.
Yang et al: Applied Mechanics and Materials Vol. 16-19(2009), p. 254 [5] Z.Q.
Chen, et al: Journal of Aerospace Power Vol. 14(1999), p. 309 [6] Y.Z.

The changes of operating patterns bring more flows about material, energy, and information among nodes in weapon equipment system.
Specifically, the relationships between different equipments reflect the flows of the ability, materials and information.
While the information flows usually is the precondition of the one of ability and materials.
Journal of Department of Equipment Command and Administration ,Vol.26(2012): p5-9 [3] Y.
Science management Research, Vol.14(2005): p148-150 [6] J.

Design and Finite Element Analysis on Crown Gear Coupling of High Torque Considering Radial Restriction Ping WANGa, Zhijun ZHENGb, June ZHANGc College of Mechanical Engineering, Tianjin University of Science & Technology, Tianjin 300222, China awp2004@tust.edu.cn, bzhengzj162@163.com, czhangjune06@126.com Keywords: radial restriction, high torque, crown gear coupling, design, finite element analysis.
After the 3-dimensional solid model is imported into software ANSYS 11.0, firstly to define element type (here are solid 45), define material properties; and then mesh the model, the finite element models of the crown gear and a bolt are established by use of Free Mesh.
Then make contact settings, the contacts between the crown gear and the inner gear, flat keys and the sleeve, flat keys and shafts connected are defined by the use of Target 170 and Contact 174, which are all non-linear contacts, the friction coefficient is 0.2, contact rigidity is Young’s modulus of the materials.
Table 1 Comparison of calculated results and analytical results Materials used Admissible stress /MPa Theoretical results /MPa Analytical results /MPa Crown gear 42CrMo (Surface hardening) 255 239 138.2 Inner gear 42CrMo (Modified treatment) 205 199 85.2 Flat key 45 120 109 116.1 Conn. bolt 40Cr 314 245.6 268.3 It can be seen that the results of theoretical calculated and analytical are both less than the admissible stress.
Yi: Journal of Shanghai University Vol. 9, 6(2005), p. 527 [2] C.

Introduction Prepreg composite forming is an important concern in the manufacturing of high performance composite material products.
In addition the composites with thermoplastic matrix are more easily recyclable than thermoset material..
(6) Where {u} is the vector of displacement degrees of freedom, { }is the material co-ordinate vector, [M] is the mass matrix, and are internal and external loads vectors of the system, is Lagrange multiplier vector and its components are slave nodal contact forces, is an index of calculation step, [G] is a surface contact displacement constraint matrix.
Journal of Materials Science 41:6725-6736 [25] Carpenter Nicholas J, Taylor Robert L, Katona Michael G.

At last, the materials used for test cut (for example: nylon, wood, engineering plastic) are cheaper than metal.
Table 1 The selection of main components Parts Name Model Size Power Material Spindle Motor TH27JB520 Φ36.5x50.5 5W Linear Guide MGN9 wide9mm HSS(quenching) Ball Screw NSK1204/THK1405 D=14/12 HSS(quenching) Chuck K01-50 maximum machining d=40mm Bearing S6804ZZ/S6812ZZ 20/72（internal diameter） Bearing steels Fig.4 The diagram of control board interface Fig.5 The interface diagram of micro-switch and card The design of control system Introduction of Mach3.
This model can cut softer materials, and at the same time ensure the limiting accuracy.
Acknowledgment The authors gratefully acknowledge the financial support provided under the Tianjin University of technology and education science and research Funds (No.
Designing and Refitting Practice on Numerical Control Lathe of Economical Model, Journal of Zhejiang Vocational and Technical Institute of Transportation, 2003,4(1) : 24～26 [7] Jiang Zhifang.

The Effect of Ni-P alloy Pre-Plating on the Performance of Ni-P /Ni-P-PTFE Composite Coatings Junying Houa, Songrui Wangb, Zhiwei Zhouc Shandong Provincial Key Laboratory of Polymer Material Advanced Manufacturing Technology，Qingdao University of Science and Technology, Qingdao 266061, P.
Experiment process Sample material are a number of 40mm × 40mm × 2mm galvanized iron, which using conventional methods deoiling, derusting, activating,then, put them into the groove, after some time of plating, so that the plating surface firmly deposited a layer that combined with substrate is good, durable and reliable coating.Composition and process conditions of composite plating bath: chemical plating Ni-P base solution,appropriate amount of PTFE particles,appropriate amount of surfactants.
Material Protection,1997(3):1-3 [2] Zhang Yong Zhong,Sun Ke Ning,Yao Mei.
Process and performance of electroless plating Ni-P-PTFE [J] Functional Materials,1999(1):88-90 [3] Wu Ya Ting,Liu Lei,Gao Jia Qiang.Process and coating performance of the self-- lubrication Ni-P-PTFE electroless composite plating.
Journal of Shanghai Jiaotong University,2005(2):206-210

Introduction The ironmaking technique was one of the most important technology in steel productions and provides the moderate materials for the steel-making.
Shanghai Key Laboratory of Modern Metallurgy & Materials Processing focused on the technique of ironmaking with new energy source for a long time and a lot of works had been done.
Acknowledgements The authors acknowledge the financial support of the National Natural Science Foundation of China (Grant No. 50634040) and Chinese National Key Technology R&D Program (Grant No. 2006BAE03A12).
The Chinese Journal of Process Engineering, No. 4, 2007.

Yang1,b 1 School of Mechanical Engineering and Automation, University of Science and Technology Liaoning, Anshan, Liaoning, 114051, China a yuxiaoguang58@163.com, bhbyanglei@163.com Keywords: Frame, Crack, Finite element, Modal analysis, Random vibration Abstract.
Nejabat: Materials&Design Vol.5 (2004), p.361
Kim: Journal of Materials Processing Technology Vol.1(2004), p.79

The external wall of “Yaodong” becomes the material carrier of various folk arts, exhibiting multiple characteristic cultures such as woodcarving, stone carving, paper cut and stone inscription to tourists on the premise of keeping the completeness and transparence of the vision of the garden as a whole.
The garden ornaments take the local sandstone as carving material to create striking and bright vision sense with the combination of colors including red, yellow and black.
Figure 8 Appearance of Placard(1) Figure 9 Appearance of Placard(2) Figure 10 Appearance of Placard(3) Figure 11 Appearance of Placard(4) Conclusion Adhering to the concept of landscape ecology, the design of the Yan’an Garden limitedly reconstructs the terrain to increase the activity space; choose energy-saving and environmentally friendly building materials and practice the concept of ecological design in the process of design to reduce the energy consumption and environmental pollution in the course of construction and using so as to create a healthy and comfortable indoor environment.
［2］Jianguo Lu, Qinhong Ren:Chinese Landscape ArchitectureVol.25 (2009)，p.4-7 ［3］Zhiming Li:Chinese Landscape ArchitectureVol.25(2009)，p.8-11 ［4］Xiaoli Han, Gongming Song:Journal of xi’an university of science and Technology Vol.30(2010),p. 77

Model Parameters Of Pmsm Taking for the instance the stator and rotor model of step-skewing machine are shown in Fig.1 and Fig.2, rotor adopts the structure of step skewing, magnetic materials are NdFeB.
This work is supported by National Natural Science Foundation of China (51077093).
Journal of Magnetism and Magnetic Materials, 2003,vol.267,pp. 80～85