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Materials Science and Engineering: A. 2008;473:28-33
Materials Letters. 2009;63:1757-60
Journal of Materials Processing Technology. 2003;137:60-4
Materials & Design. 2011;32:911-6
Materials & Design. 2013;44:487-92

Carries on the planetary transmission dynamics analysis using the finite element Based on elastic theory, in order to simplify the solution of the problem, the establishment of a finite element model,the following assumptions were done: first gear materials isotropic; second gear materials is a continuous, uniform; three is ignored when the gear tooth surface friction on[2]. 2.1 Create geometric model Gear parameter as shown in Table 2-1, planetary transmission full-scale mockup as shown in Figure 2-1.
(a)Sun gear and planetary gear (Part 1) contact stress cloud chart /Pa (b)Sun gear and planetary gear (left) contact stress cloud chart /Pa (c) The Sun gear and planets round (right) contact stress contour/Pa Figure 2-5 the gear contact stress diagram 2.2.1 Definition unit type and material performance parameter Select the gear materials for 45 steel (conditioning), elastic modulus, Poisson ratio u = 0.27.
Shenyang Industrial university journal, 2009,19[10]:31-33.
Vibration Engineering Journal, 2008,13[10]:20-22.Chief Editor.In Chinese [14]Yang Xiao Yu.Gear drive systems dynamics characteristic finite element analysis and testing method research.
Chinese Academy of Science, 2007.

The same accuracy requirement applies to material properties.
All methods rely on the material properties derived from experiments or material design criterion.
In the simplest case, fatigue properties for a smooth parent material subjected to fully reversed loading are available.
Carbody structure is subjected to random loading, which can be very difficult to correlate to constant amplitude material properties.
Acknowledgment This research was supported by National Basic Research Program of China 973 Program (2007CB714705) and National 863 program (2006AA04Z406), National Science Foundation of China (No.50525518).

The cassava root could be considered as isotropic material, and the stem could be considered as anisotropy material[8].
The root material parameters are as follow: density is 1036kg/m3, elastic modulus is 7.23×106Pa ,and poisson ratio is 0.3.
Acknowledgements This work was financially supported by the National Natural Science Foundation of China (No. 51065003).
Zhang: Journal of Agricultural Mechanization Research Vol. 1(2011),p. 28-31.
Huang: Journal of Agricultural Mechanization Research Vol. 8(2011),p. 119-122.

The model was imported into ANSYS, defined materials, and meshed.
Chinese Academy of Sciences, Chang Chun, 2006(in Chinese)
[4] Yuegang Wang, Kinematics and dynamics simulation analysis of centrifuge facility-vibration shaker system based on ADAMS, Journal of Machine Design,Vol.33(2013)NO.4 33-137(in Chinese)

Establish the seawall evaluation grade set The evaluation system is divided into five grades according to the Specific conditions and evaluation requirements of Seawall .That is .It is described as “large “extra-large, general ,extra-small, small .Some experts are invited to give scores to the qualitative index of the index system.Some related materials of construction ,designation ,supervision and social investigation are required to make the scores objective and fair. 3.
(In Chinese) [3] Peng Qin, Yinhua Wang, Weihan Wang.An integrated model of fuzzy analytical hierarchy process and variable fuzzy set model on evaluating river health system:Journal of Zhejiang Univercity(Engineering Science), Vol.45(2011),p.2169-2175.

Introduction The structure of plastic parts is shown in Fig.1, the plastic material: ABS, shrinkage rate: 0.5%, plastic surface smooth without burr, no shrinkage mark.
Chinese Journal of Mechanical Engineering. 2010(3) [2] Xuefeng Li , Hongbin Liu.
Recent Advancement on Material Science and Manufacturing Technologies[C]. 2013 [4] Cuiping Wang.

Fig. 1 The system functions （1）Contract document management module: collect, organize the materials and other closely relevant information with contract management which formed in the work of formation of contract management, then search, query contract documents, entry, modification contract data and so on.
References [1] Yihuo Liang, Construction on the strengthening of information management in the specific methods, J. shijie jiayuan. 7(2012)141 [2] Jiying Hu, Dequn Zhang, ke Guan, Information of construction contract management, J.Construction Management Modernization. 1(2002)59-60 [3] Qiuquan Li, How to apply network information management in Building construction, J.Science & Technology Information. 23(2008)123 [4] Zhaoliang Lu, Jirong Shao, Analysis of Construction Project Management in network technology ,J .
Manager’ Journal. 8(2009)293 [5] Yue Zhan, Improve the level of contracts management by information technology, J.

Fig.3 Deformation of different time steps #umerical Example A rubber plate of dimension 1.0m×2.0m is made of Mooney-Rivilin material with material constants given by C1=125Pa，C2=10Pa，λ=10000Pa，initial density ρ=1.0kg/m3.
Acknowledgements This research was sponsored by the Natural Science Foundation of Shandong Province of China (Grant No.
Belytschko: International Journal for Numerical Methods in Engeering, 46(1999), No.6, p.925.

Introduction As the industrialization increases continually, the pollution emergencies, which are caused by hazardous materials, have posed a greater threat to the global world.
Acknowledgment This research is supported by National Natural Science Foundation of China (No. 90924013, No. 70972048) and Shanghai Leading Academic Discipline Project (No.B210).
[11]Ning Wang, Yanzhang Wang: Emergency Management System and Its Business Process Research.Public Management Academic Journal.