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Dislocation distribution function of two fracture dynamics problems concerning aluminum alloys Nian-chun Lü1, a, 3,c , Yun-hong Cheng 2,b , Jin Cheng3,c , Yile Chen4,d 1 School of Material Science and Engineering, Shenyang Ligong University, Shenyang 110168, P R China; 2 Department of Civil Engineering, Northeastern University, Shenyang 110006, P R China; 3 School of Astronautics, Harbin Institute of Technology, Harbin 150001, P R China 4 Henan Jiaozuo Mining Machinery Co.
,Ltd,Jiaozuo,China a lnc_65@163.com, bcyhlny@sina.com, czwlxg@126.com, d chenyiluo1967@yahoo.com Key words: dynamic propagation problems; mode I crack; Aluminum alloys; analytical solutions; self-similar functions Abstract.
Atkinson, International Journal of Engineering Science. 1965, 3 (2): 77-91 [14] I.

Design and Study on Mortar Pump's Impeller Based on Bezier and Mechanical Mechanics MingXin Chen1,a, LingFeng Tang1,b, Ge Zhou2,c, ZhongYing Dou3,d, XiaoLi Yang3,e and XiaoYang Du3,f 1College of Mechanical and Automotive Engineering, Anhui Polytechnic University,Wuhu Anhui 241000 China 2National Center of Supervision and Inspection on Auto Parts Products Quality(Wuhu),Wuhu Anhui 241007 China 3Chery Automobile Co., Ltd ,Wuhu Anhui 241009 China acmx1215225@163.com,bwymtlf@126.com,czhou__ge@126.com, ddouzhong_ying@163.com,eyxiao_li@163.com, fduxiao__yang@163.com Keyword: Expansion of the blade profile; Bezier Curve; Mechanical mechanics;Numerical simulation;Performance Abstract.
Introduction Centrifugal pump is a widely used general hydraulic machinery, whose application is rapidly expanded along with the rapid development of modern science and technology, its working environment is becoming more and more complicated.The modern engineering technology is requiring more and more higher about the pump's performance , and the centrifugal pump's blade shape greatly affected the pump's hydraulic performance, the blade profile directly determined the actual shape of the blade.The blade profile decided the centrifugal pump's hydraulic performance by changing the blade surface's hydrodynamic load .At present, the widely adopted domestic method of drawing the blade profile is choosing the conformal mapping method to draw the blade profile. when drawing the blade profile by using the grid square, experience accounting for a large proportion, which is difficult to control the expansion of the blade profile overally.The way to change the import side position and the Angle
(13) The type, [τ] is the allowable shear stress of the pump shaft's material, the common quality carbon steel's value range is (343 ~ 441) N/m2 and the alloy steel's value range is (441 ~ 588) N/m2.
Therefore, the key step to drawing the blade profile is to determine the blade Angle .
References [1] YangJunHu, JiangYunGuo, zhangRenHui, YuanYaFei, MaWenYing; The New Method to Determine the Centrifugal Pump's Bade Angle[J]; Journal for the LanZhou University of Technology; No.10.2010 [2] YangHua,LiuChao,TangFangPing,GuChuanGang;Experiment and Numerical Simulation of Centrifugal Pump with Different Wrap Angle[J];Journal of Mechanical Engineering; No.10.2007 [3] CaoWeiDong,LiYue,ZhangXiaoDi;Study on performance of low specific speed sewage pump with different vane wrap angles[J];Mechanical Facilities of Irrigation and Drainage;No.06.2009 [4] Cai H H,Wang G J.A New Method in Highway Route Design: Joining Circular Arcs by a Single C-Bezier Curve with Shape Parameter[J].Zhejiang Univ SciA.2009,10( 4) : 562 ~569

China 2 Engineering Research Center of Digitized Textile & Fashion Technology, Ministry of Education, Shanghai 201620, P.
Introduction Carbon fiber is a new type of fiber material, widely used in construction, chemical, military, aerospace and other fields.
Acknowledgments This work was supported in part by the Key Project of the National Nature Science Foundation of China (No. 61134009), Specialized Research Fund for Shanghai Leading Talents, Project of the Shanghai Committee of Science and Technology (Nos. 11XD1400100, 11JC14002000), and the Fundamental Research Funds for the Central Universities.
She obtained the B.S., M.S. and Ph.D. degrees in Electrical Engineering from Donghua University, Shanghai, China in 1989, 1992 and 2000, respectively.
[6] Zhai Jianshe, Li Na, Wu Qing: Wireless sensor data fusion algorithm based on clustering cluster, Computer Engineering, vol.34(2008), pp.134-136

Gear Fault Classification Using Kernel Discriminant Analysis Weihua Li1,a, Kang Ding1,b, Tielin Shi2,c and Guanglan Liao2,d 1 College of Automotive Engineering, South China University of Technology, 510640 Guangzhou, China 2 School of Mechanical Science and Engineering, Huazhong University of Science and Technology, 430074 Wuhan, China a whlee@scut.edu.cn, b kding@scut.edu.cn, c tlshi@public.wh.hb.cn, dg.l.liao@mail.hust.edu.cn Keywords: Gear, Fault Diagnosis, Kernel Methods, Discriminant Analysis Abstract.
Material: mild steel to easily introduce surface defects.
Acknowledgement This research is supported in part by National Natural Science Foundation of China (Grant No. 50475095), Natural Science Foundation of Guangdong Province (Grant No.05300143, 04020082), and Open Research FoundDW�RQ of State Key Laboratory of Vibration, Shock and Noise (Grant No.VSN-2004-03).
Journal of Quality in Maintenance Engineering.

Assessment of Degrees of Cumulative Fatigue Crack Initiation Damage at Guyed Mast Earplate Joint Wenli Wang 1,2, a, Weilian Qu1,b , Jie He 3,c 1Hubei Key Laboratory of Roadway Bridge and Structure Engineering, Wuhan University of Technology, Wuhan 430070, P.R.China 2Department of Civil Engineering of School of Technology of Hubei Industry University, Wuhan 430080, P.R.China 3 Changjiang Institute of Survey Planning Design and Research CWRC, Wuhan 430010,P.R.Cina aunique_wwl@126.com, bqwlianl@sina.com, che.jack@foxmail.com Keywords: guyed mast earplate joint, welding, fatigue crack initiation, assessment Abstract.
Introduction A guyed mast, which is slender, tall and flexible, is widely used in communications engineering.
The procedures of simulation for the welding residual stresses using ANSYS can be summarized as in the following: (1) to convert the elements for the thermal analysis to those for the structural analysis in the ANSYS pre-processor; (2) to define the material model and apply initial boundary and restraining conditions; (3) to assign the node temperature of the transient temperature field at each time instant; (4) to calculate the transient stress in the welding process; (5) to remove the part of welding residual stresses by adopting the elimination remnant technology after cooling and to assign the remained residual stresses as the initial stress field at the earplate joint.

Study on Shear Capacity of Cold-Formed Thin-Walled Steel Composite Walls with Openings Yuanqi Lia, Jingkai Yang b 1Department of Building Engineering, Tongji Unviersity, Shanghai 200092, China aliyq@tongji.edu.cn, byang_jingkai@163.com Keywords: Cold-Formed Thin-Walled Steel, Composite Wall with Openings, Sheathing Area Ratio, Reduction Ratio.
It relates with the material and size of the frame, self-tapping fastener spacing, wall size ratio, column spacing, boundary conditions, openings conditions and other factors.
OSB I-1[4] 1.00 1.00 1.000 1.000 1.000 1.000 0.982 0.000 0.000 0.000 -0.018 OSB II-1[4] 0.70 0.70 0.564 0.438 0.538 0.588 0.538 -0.224 -0.045 0.043 -0.046 WB1[5] 0.96 0.97 0.812 0.889 0.923 0.937 0.940 0.095 0.137 0.154 0.158 WB1[6] 0.97 0.97 0.896 0.915 0.942 0.937 0.940 0.021 0.051 0.046 0.050 WB2[6] 0.70 0.74 0.630 0.438 0.538 0.621 0.600 -0.306 -0.145 -0.015 -0.048 WB3[6] 0.81 0.85 0.918 0.587 0.681 0.740 0.767 -0.361 -0.259 -0.193 -0.165 2A[3] 0.76 0.78 0.621 0.514 0.613 0.659 0.661 -0.173 -0.013 0.061 0.065 4[3] 0.48 0.57 0.311 0.235 0.316 0.509 0.341 -0.243 0.015 0.636 0.096 SW6[7] 0.88 0.90 0.846 0.710 0.786 0.813 0.840 -0.161 -0.071 -0.039 -0.007 SW8[7] 0.59 0.65 0.510 0.324 0.418 0.554 0.461 -0.364 -0.180 0.085 -0.095 SW15[7] 0.71 0.80 0.615 0.449 0.550 0.680 0.692 -0.269 -0.105 0.106 0.125 Sum — — — — — — — -1.986 -0.615 0.883 0.115 Sum Square — — — — — — — 0.604 0.160 0.493 0.097 Acknowledgements The authors are grateful to the financial support by Research Fund of State Key
Laboratory of Disaster Reduction in Civil Engineering (No.SLDRCE09-B-01), National Natural Science Foundation of China (No.50878168), and Kwang-Hua Fund of College of Civil Engineering, Tongji University.

Investigation on The Effect of Gallium on The Efficiency of CIGS Solar Cells Through Dedicated Software Hanif Ullah1, Bernabé Marí 1,a,* and Hai-Ning Cui 2,b,* 1School of Design Engineering.
Improving this conversion efficiency is a key goal of research and helps make PV technologies cost-competitive with more traditional sources of energy.
The absorber layer absorbs those photons whose wavelength is either equal or greater than the band-gape Eg of the absorber material [11].
The authors are indebted to School of Design Engineering (ETSID) and Institute of Design and Fabrication (IDF) at Universitat Politècnica de València for their continuous support.
"Prospects of Cu2ZnSnS4 (CZTS) Solar Cells from Numerical Analysis" in 2010 International Conference on Electrical and Computer Engineering (ICECE), pp. 730-733

Research of Vehicle Scheduling Problem and Algorithm Based on Emergency Needs Yajing Wen1,2, a, Zhuo Wang2,b ,Honghui Dong1,c, Yichao Liang3d, Limin Jia1e 1 State Key Laboratory of Rail Traffic Control and Safety (Beijing Jiaotong University), China 2School of Traffic and transportation, Beijing Jiaotong University, China 3Beijing Traffic Management Bureau, China a11120922@bjtu.edu.cn, bzhuow168@126.com, chhdong@bjtu.edu.cn, dliang_yichao@hotmail.com, elmjia@bjtu.edu.cn Keywords: Vehicle scheduling, Emergency needs, C-K algorithm, logistics.
Emergency needs can be abstracted as subject material, information flow process from the supply to the demand.
Journal of Zhejiang University(Engineering Science),2003,37(2):243-248
Systems Engineering,2004,22(4):66-70
Journal of Air Force Engineering University(Journal of East China University of Science And Technology(Natural Science Edition).2005,6(2):92-94

Introduction The Vibration problem of Fluid Structures Interaction (FSI) system of fluid conveying pipe has wide engineering application background.
Its research findings can be applied to many fields such as energy engineering, oceanographic engineering, bioengineering, chemical engineering, machinery, aviation and spaceflight, nuclear industry and so on.
In most instances, the vibration of pipe is quite harmful, which it is quite meaningful in engineering practice that we do our best to avoid it during pipe design or take measures to effectively control it.
Furthermore, we can obtain anticipant periodic motion with a certain periodicity modulus to meet engineering requirements via modulating feedback gains of notch filter.
Acknowledgements This work was financially supported by the State Key Development Program of Basic Research of China (973 Program), (2011CB706504).

Ordnance Material Science and Engineering, 2009, 32(2)35-38 [3] Yuan Lv，Zhong Gan.
Journal of Plasticity Engineering, 2009, 16(3):140-144 [5] Bates J.M,Granger C.W.J.The Combination of Forecasters [J].
Systems Engineering and Electronics, 2002, 24(9):111-113 [7] Xinwu Lai.
Research on Springback Forecasting of Sheet Metal Stamping based on a Combination Forecasting Method of Artificial Neural Network, Zhejiang University in Partial Fulfillment of the Requirements for the Degree of Master of Engineering, 2006 [8] Kaitai Fang, Changing Ma.
Age Forming Simulation and Springback Prediction of Aluminum Alloy 2124, Northwestern Polytechnical University in Partial Fulfillment of the Requirements for the Degree of Master of Engineering, 2011 [10] Robert Hecht-Nielson.