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Online since: March 2012
Authors: Sven Schulze, Carsten Stechert, Uwe Dombrowski, Thomas Vietor, Frank Nehuis, Kai Schmidtchen
A large part of the life cyclecosts of the product is already determinedin the product design by the function and product structure as well as the used materials and product components.
Franke: Managing Requirements as the Core of Multi-Disciplinary Product Development. in CIRP Journal of Manufacturing Science and Technology 1(3), Elsevier B.V., Amsterdam (2009), p. 153-158 [3] C.
Online since: July 2013
Authors: An Ping Qiu, Shao Dong Jiang, Zhang Jing
Modeling of nonlinear stiffness of micro-resonator in silicon resonant accelerometer JING Zhang1, a, SHAO-DONG Jiang1,b and AN-PING Qiu1,c 1 School of Mechanical Engineering,Nanjing University of Science and Technology, Nanjing 210094, China a zhangjing3701@126.com, bshdjiang_njust@163.com, capqiu@mail.njust.edu.cn Keywords: Silicon Resonant Accelerometer, nonlinear vibration, nonlinear stiffness Abstract.
According to Eq. 1, the vibration mode shapes of the resonant beam can be obtained as (4) where the value of β ​​can be determined based on the boundary conditions of the beam. 2.2 Energy method analysis of nonlinear vibration Reference the Hamilton's principle [4] described, the following nonlinear equation of the resonant beam oscillation is obtained by energy method and the Lagrange equations as (5) with (6) where ρ is the density of silicon material, I is the inertia moment of the beam cross-section, ms is the comb mass, Meff is the equivalent mass, Keff is the linear stiffness including the linear elastic flexural stiffness and the generalized geometric stiffness due to the axial load, and K3,eff is the cubic nonlinear constant (namely the nonlinear stiffness), P is the driving force applied in the comb.
One can know from material mechanics that the value of Ka is equal to the force divided by the displacement at the output beam.
Latin American Journal of Solids and Structures. 6 (2009) 73-87
Online since: January 2012
Authors: Ji Zhou, Jing He, Yan Hui Zhang, Cun Lei Zhou
Experimental Model Summary The model uses the same materials as the prototype.
[2] Chengyu Li, The Damage Analysis of Earth / Wood Structure Houses on Lijiang Earthquake, Journal of yunnan polytechnic university, 1996, 12(4):1-3 [3] Gu Junming, Study on Seismic Performance of Timber Construction in Villages, master Dissertation of KUNMING University of science and technology, 2006.3
Online since: January 2011
Authors: Qiang Li, Bo Qian
Introduction Cold roll forming is to constantly make the metal plates such as sheet, strip bend vertically by sequential multi-pass forming rolls, and then make the specific cross-section products [1].Furthermore, cold roll forming is a kind of material-saving, energy-saving and high-efficient sheet metal forming process technology [2].
Automobile Technology & Material, Vol.02, pp.18-22, (2010)
Journal of Huazhong University of Science and Technology, Vol. 28, pp.47-51, (2000)
Online since: December 2009
Authors: Ping Guan, Ya Mei Zhao, Xiao Ling Hu
Influences of preparative conditions on properties of erythromycin-molecularly imprinted membrane Ping Guan1, a , Xiaoling Hu 1, b , YaMei Zhao 1, c 1 School of Natural and Applied Science, Northwestern Polytechnical University, Xi'an 710072, China a guanping1113@nwpu.edu.cn, bhuxl@nwpu.edu.cn, czhaoyamei@mail.nwpu.edu.cn Keywords: Molecularly imprinted; membrane; erythromycin; preparation; separation Abstract.
Experimental Materials.
[18] Ping Li: Journal of Qiqihar Medical College.
Online since: January 2012
Authors: Xian Ming Deng, Zhi Ye Wang, Meng Liu, Sheng Zhu Xia
Before solving the model, loading conditions in different physical environment should be set up: · Electromagnetic field load: for closer reality, using ANSYS circuits coupled model, load the different frequency three-phase sinusoidal voltage separately to the stator power windings and the control windings, the rotor circuit is connected into a nest shape, input the conductivity and magnetic conductivity of material, core’s BH curve and winding conductivity-temperature curve, etc
From the flowchart we can see that the heat source can load the outcome document of the electromagnetic field, and thermal conductivity of the coil can be given in the material properties, which makes the calculation results closer to the actual.
References [1] Tang Yunqiu, "Electromagnetic Field in Motor” (Second Edition),[M]Beijing: Science press, 1981
[7] Li Heming, Li Junqing, Review on temperature computation and application in electric machines,[J] .Journal of North China Electric Power University,2005,1:1-4
Online since: May 2012
Authors: Chih Feng Chen, Chiu Wen Chen, Cheng Di Dong
Materials and Methods Twelve sampling stations were distributed in northern Kaohsiung Harbor, Taiwan (Fig. 1).
Dong: International Journal of Environmental Science and Development 3 (2012) 66–71
Online since: January 2012
Authors: Guan Ci Chen, Ting Wang Xie, Fan Hai Mao
Acknowledgment This work is supported by National Natural Science Funds of China [grant number 51005031] and the National High-tech Research and Development Program of China [grant number 2009AA044901].
Journal of Aerospace Power. 20(2005)250-254.
Materials and Design. 27(2006)364–372.
Online since: October 2012
Authors: Jing Fei Ren, Jing Li, Miao Wang
All the data and materials come from the annual report of Shanghai Stock Exchange and Shenzhen Stock Exchange and some are calculated.
Acknowledgements This work was supported by Major International Joint Research Program of the National Natural Science Foundation of China (71020107027), National High Technology Research and Development Major Program of China (Program 863) (2008AA04A107), Project 985 and 211.
[8] Ng,Christina Y.M.An Empirical Study on the Relationship Between Ownership and Performance in a Family-Based Corporate Environment[J] .Journal of Accounting,Auditing&Finance,2005,20 [9] P.Y.
Online since: December 2010
Authors: Lang Cao, Wei Weng
Under the same consumption of material, hollow-shearwall will greatly help to increase the out-of-plane stiffness.
In conclusion, linear expression can be used to calculate out-of-plane moment in the middle part of the wall. 3.As seen in Fig4-8 to Fig4-11 and Table 1, under the same conditions (including load, geometrie size, material), except part near the right and left edges of the wall, the wall plate’s deflection WJand bending moment Mx with pin support on the left and right edges are larger than that (WG and MGx )of the wall with fixed supports on the left and right edges,while the changing rate in a of the wall with fixed support is larger. 4.It can be further analyzed by Figure 4-10.
Elastic thin plate [M].BeiJing:Science Press,1984
Determination of flexural stiffness for voided plates with parallel circular tubes [ J ] Chinese Journal of Computational Mechanics,2008,Vol.25,No.4
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