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Online since: October 2012
Authors: Bo Geng, Xi Zhang
The surface buoys can be made with composite materials and be fixed on the pile cap or anchorage by mooring.
Journal of Tongji University(Natural Science).
Journal of Hebei University of Technology.
Journal of Ship Research.
Online since: September 2013
Authors: Wei Chen, Jin Kun Sun, Chun Li Zhou
Traditional seismic designs such as increasing cross-sectional dimension and reinforcement ratio, improving the material strength material intensity or adding shear walls is uneconomic because they will increase the seismic load accordingly.
Beijing: sciences press.
Journal of vibration and shock, 2011, 30 (11) :261 - 265.
Journal of vibration and shock, 2012,31(15):158 - 164.
China civil engineering journal, 2000,33(6):33 - 36.
Online since: September 2014
Authors: Ping Yan, Hai Tao Wang, Wen Xue Li, Jing Gu
Acknowledgements The authors gratefully acknowledge the financial support from the National Natural Science Foundation of China under Grant No.41272347.
Canadian Geotechnical Journal.
Applied Mechanics and Materials.
Journal of Geophysical Research.
Journal of Rock Mechanics and Geotechnical Engineering.
Online since: December 2012
Authors: Zhong Hua Huang, Ya Xie, Yi Deng
Crankshaft journal surface node degrees of freedom are all fixed.
Crankshaft journal surface node degrees of freedom are all fixed.
Acknowledgements This work was financially supported by Ministry of Education Key Project of Science and Technology (202123), key project of Department of education of Hunan Province (11A206), Program for New Century Excellent Talents in University (NCET-11-0968) Reference [1] MASAMI OCHIAI, SHOHEI Ryu.
Journal Applied Mechanics and Materials, 2012, 190-191: 825-831.
Online since: December 2010
Authors: Ping Zhao, Feng Tian Hao
Basic events of each subsystem and reliabilities are as follows: Bidding decision stage is composed by two most important basic events: information understanding and bidding strategy and reliability is respectively R11 and R12; The completion acceptance stage is composed by six most important basic events: contract terms, contract management, materials supply, subcontractor risk, force majeure, and cost management and reliability is respectively R21, R22, R23, R24, R25 and R26; The completion acceptance stage is composed by four most important basic events: completion acceptance, completion data management, credit treatment and debt treatment and reliability is respectively R31, R32, R33 and R34.
References [1] Jing Wang et.al: Chinese Journal of Underground Space and Engineering Vol.5(2009), p. 385–389 in Chinese
[2] Hongwei Huang: Chinese Journal of Underground Space and Engineering Vol.2 (2006), p. 16 in Chinese
[4] Weigong Peng, Jijun Zhou, et al: China Safety Science Journal Vol.4 (2009), p. 16-20 in Chinese [5] Shengkui Zeng: System reliability design and analysis (Beijing: BEIHANG UNIVERSITY Press, 2001), in Chinese
Online since: October 2013
Authors: Te Li, Zhi Yuan Rui, Chi Bing Hu
Suppose the collision is only occur in the single side of tooth face ,then the firce function could be describe as follow: impact=Max0,Kq0-1e-cqstepq,q0-d,1,q0,0 q>q00 q≤q0 (10) here q is the displacement variable ,which means the distance between two collision bodies ;q is the variable relative speed ;q0 is the trigger for displacement variable which means boundary distance that the collision force works or not ;K is the stiffness of coefficient ;e is the stiffness force exponent ;C is the damping coefficient ; d is the damping Ramp-up coefficient .These parameters such as K,e,C,d mentioned upon are lie on material of two collision bodies .If they are steel ,then K=e ,e>1 ,C=e/100 ,d=0.1 .suppose q0 is 0.01 .In order to analyze the material of gear is set as steel ,the parameter K will be get by computing and μ will be get by table looking-up .so far every parameter is ascertained
Science press.1997 [3] Guangguo, Zhang,Lei Zhang, Zhibin Chang, Design of a Center Deviation Adaptive Bearing Pressure Assembly Machine 2012(08)10, 699-705 [4] Wang Ailun, Ma Qiang,Liu Linlin.The simulation of dynamic properties of noncircular gear[J].
Journal of Mechanical Transmission.2006(30)04:7-10 [5] Zhang Ai-Mei, Jiang Jia.Wei Lijun,Zhao Juan,Wang Lei,The dynamic property research of noncircular gear.
Journal of Mechanical Transmission.2009(05):20-23 [6] Tan Weiming, The variable pressure angle property of noncircular gear with involute tooth profile.
Journal of Mechanical Transmission.2001(25)02:23-24,27 [7] Lin Chao, Ni Mengyan, Ran Xiaohu.
Online since: March 2013
Authors: Ali A. Karakhan, Angham E. Alsaffar
From Pareto chart, the major causes of deviations in the quality of concrete mixture are: w/c ratio and mix proportion; then, bad quality of materials, truck mixer delay; after that, temperatures; next, efficiency of workers and other reasons. 4.
Y., Applied Product Capability Analysis Chart in Measure Step of Six Sigma, Quality and Quantity Journal, Vol. 41, No. 3, pp. 387-400, Springer, (2006)
T., Applied Quality Management Programs in the Construction Industry: Best Value Compared with Other Methodologies, Journal of Management and Engineering, Vol. 27, No. 4, pp. 210-219, ASCE, (2011)
S., Implementing and Applying Six Sigma in Construction, Journal of Construction Engineering and Management, Vol. 30, No. 4, pp. 482-489, ASCE, (2004)
[8] Nyrén G., Product Development According to Six Sigma and the DMAIC Improvement Cycle, MSc Thesis, Department of Business Administration and Social Sciences, Industrial Business Administration, Leleå University of Technology, (2010)
Online since: November 2013
Authors: Hong Lei Jia, Chang Ying Li, Zhi Hong Zhang, Hong Chang Wang, Gang Wang
These discontinuities originate from different scene features such as discontinuities in depth, discontinuities in surface orientation, and changes in material properties and variations in scene illumination [7].
Method and material 1.1 Sample collection of grasshopper and photograph taken by stereoscope Adult grasshopper was captured in the Cangzhou city in the Hebei province of China.
Journal of Bionic Engineering.7 (2010) S36-S42
Journal of Bionic Engineering. 7 (2010) S166-S171
Journal of Computer Science. 6 (2010) 199-204
Online since: October 2011
Authors: Yi Yong Huang, Xiao Qian Chen, Lu Cao, Wei Wei Yang
The Research of Micro-Satellite Attitude Determination Based on Predictive Filter Lu Cao, Weiwei Yang, Xiaoqian Chen, and Yiyong Huang College of Aerospace and Materials Engineering National University of Defense Technology,Changsha, P.R.China e-mail: caolu0206@gmail.com Keywords-component; predictive filter; attitude determination; angular velocity; model error Abstract.
Acknowledgment The authors gratefully acknowledge the financial support of the National Natural Science Foundation of China (Grant No. 50975280).
Journal of Guidance, Control and Dynamics, 1997,20(3):522-527
Journal of Astronautics, 2005,26:23-29
JOURNAL OF HARBIN INSTITUTE OF TECHNOLOGY 2007 39.
Online since: June 2007
Authors: P. Oboh, John A. Akpobi
Airiohuodion: Computer-Aided Design of Helical Gears, to appear in Nigerian Journal of Engineering Management (NJEM), (2005)
Lawani: Computer Aided Design of Flywheels, Advances in Engineering Software (Elsevier Publishers), Vol. 37, No. 4, (2006),p. 222-235 http://www.sciencedirect.com/science/journal/09659978 [9] J.A.
Akpobi: Computer Aided Design of Rolling Bearings 1, Journal of Civil Environmental Systems Engineering, Vol. 2.
to valve acceleration N H Depth or height of tion mm h Lift of the 2 ( ) ( ) ( ) ( / ) c e es s T Thickness of cylinder wall mm T Equivalent twisting moment on the crankpin Nmm T Equivalent twisting moment on the shaft Nmm T Maximum shear stress N mm t Thickness of cran ( ) ( ) ( ) ( ) ( ) ( ) ( fw wB f k web mm t Thicknessof crankweb mm t Flange and web thickness mm w Width of crank web mm W Total load on the valve N W Buckling load N W Weight of the flywheel acting downwards 4 2 2 2 ) mod ( / ) ( / ) ( ) ( / ) ( / ) b c ct N Z Section ulus mm Kg Allowable shear stress in crankpin N mm Maximum compression of the spring mm Bending stress N mm Compressive stress N mm Perm ϑ σ σ σ σ 2 2 ( / ) ( / ) h t issible compressive stress of the material
of the tappet N mm Permissible circumferential or hoop stress for the cylinder N mm Allowable tensile stress for the material of the bolt σ σ 2 2 ( / ) ( / ) ( / ) s N mm Allowable shear stress in the shaft N mm Angular speed of the engine rad s τ ω