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With the development of technology and the application of relevant new materials, the voltage of transmission line and the height of the transmission tower is becoming increasingly higher, which means the tower is easier to be affected by the lightning overvoltage and the spread of the wave in the tower is more complicated.
Wu Han: Huazhong University of Science and Technology, 2012
Journal of Xi’an Jiaotong University, 2004, 38(4):365-368

Van de Ven, Fluid Power System Dynamics, Department of Mechanical Engineering, Center for Compact and Efficient Fluid Power A National Science Foundation Engineering Research Center, University of Minnesota, Minneapolis, U.S.A. (2015)
Balan, Hydraulic Installations for Heavy Machine-Tools, Journal of Engineering Studies and Research Volume 18, No. 2, pp. 116-120 (2012)
Motomancea, Modeling and Simulation of Closed-Loop Counterbalancing Hydraulic Units for Heavy-Duty Machine-Tools, Applied Mechanics and Materials Vol. 332 pp 417-422© (2013)

It means system object, its subsystems and external environment between the exchange of material, energy and information.
Input and output plugins of platform are mainly responsible for engine platform and external data information and exchange of energy, which can make the image, material is qualitative, the sound, the configuration file and user input into the engine platform incentive files within dealt with, and also can make users want information in some form output to the specified path.
This kind of design thought guaranteed the latest algorithm can rapidly embedding and updates, and based on this kind of sharing mechanism, the developer ourselves on the engine platform version update at the same time, calculate algorithm library can also compatible automatic upgrade, to ensure the simulation engine platform in key technologies on forever follow frontier science and technology.
[4] YueYongHui, WangLiLi, HaoAiMin etc. a scalable graphics engine system structure of system simulation , journal of system simulation , Vol. 18, supplement 1, 2006, pp. 3613 ~ 3617

Science of the Total Environment, 651, 2799-2810
International Journal of Environmental Research and Public Health.
Journal of Hazardous Substances Research, vol. 2, pp. 1–25 [28] Jones L H P., Jarvis S C., 1981.
Minerals, metals and sustainability: meeting future material needs.
Article number: 182 (2020) Journal of Earth System Science volume 129 [55] Maulana A., Christy A G., Ellis D J., 2015.

The structure of the modified multicomponent cement stone after hardening in the OU at the age of 28 days. 1 - control composition; 2 - with fine slag; 3 –with fine-dispersed slag and goods and materials; 4 - with fine slag, goods and materials and microsilica.
[10] Kalashnikov V.I., The industry of non-metallic building materials and the future of concrete, Building materials, 3, 20-23 (2008)
Engineering Science, 7-8 (29-30), 44-47 (2014)
[12] Eisenstadt A.M., Elements of surface thermodynamics of highly dispersed rock systems // Collection of the All-Russian scientific conference "Building materials science: the present and the future", dedicated to the 90th anniversary of Yu.M.
[13] Danilov V.E., Eisenstadt A.M., Boundary angles of soaking of naphayushikhpots // Collection of the All-Russian scientific conference "Building materials science: the present and the future", dedicated to the 90th anniversary of Yu.M.

Because Hertz contact area of contact vice material low damping characteristics, and it’s damping negligible; Export area oil film air-pocket form of negative pressure characteristics of contact less effect, can be neglected [7].
[3] WANG Yan, JIA Chang-zhi, HAN Xiao-ping,et al.Virtual prototyping and simulation on multi rotor-bear-ing system [J].Journal of Ordnance Engineering Col-lege, 2007,19(3):50-53
[4] YAO Ting-qiang, CHI Yi-lin, HUANG Ya-yu,et al.Contact dynamics simulation of rigid and flexible cou-pled spindle system [J].Mechanical Science and Tech-nology for Aerospace Engineering,2007,26(11):1507-1510
Gear system dynamic vibration and impact, noise [M].Beijing: Science Press, 1996

Table 1 Structure size and material parameters of pavement Structural layer Elastic modulus E/MPa Poisson ratioμ Coefficient of thermal conductivity /w/m℃ Temperature contraction coefficient /1/℃ Asphalt overlay 1200（800-2400） 0.25 1.2 2.1×10-5 Stress absorption interlayer 800（400-1600） 0.25 1.2 2.1×10-5 Old cement concrete slab 30000 0.15 1.5 1.0×10-5 base 100 0.3 1.0 0.5×10-5 The Determination of the Most Unfavorable Load Position Fig.3 shows the change law of stress intensity factor K and J-integral of crack tip when it is under different wheel load.
The Key Project of Guangxi Science and Technology Lab Center(LGZX201107).
[M].Beijing: Science Press, 2009, 22-58
Analytical prediction of short to long fatigue crack growth rate using small-and large-scale yielding fracture mechanics.International Journal of Fatigue, Volume 25, Issues 9-11, September-November 2003, Pages 923-933.

A Novel Design in Micro-Air-Vehicle: Flapping Rotary Wings WU Jianghaoa,ZHOU Chaob and ZHANG Yanlaic School of Transportation Science and Engineering, Beihang University, Beijing, PR China a buaawjh@buaa.edu.cn, b zcqh821@163.com, c zhangyanlai@buaa.edu.cn Keywords: MAV; flapping rotary wings; lift force; aircraft design Abstract.
To lessen the model’s weight, the shaft and sleeve all use carbon fiber material.
Acknowledgements This research was primarily supported by the National Natural Science Foundation of China (10902009 and 11172029).
International Journal of Micro Air Vehicles, Volume 1, Number 4, pp. 255 - 262

The Influence of the Enterprise’s Market power on Its Availability for Trade Credit and Bank Credit Financing ——Based on the Empirical Test about the Listed Companies of Electrical Energy Wu Dan1,a, Luo Yan2,b 1Jiangxi Science and Technology Normal University, Nanchang, Jiangxi Province 330038,China 2Jiangxi Science and Technology Normal University, Nanchang, Jiangxi Province, 330038,China aemail:wd877677@163.com,bemail:ly6927127@163.com Keywords: Bank Credit Financing; Market power; Trade credits Abstract.
Introduction An enterprise, whenever in any [1] development stage, can be provided a firm material backing by an abundant financial capital and can be made up for the weakness in other aspects with the advantage of capital.
Journal of Financial Economics，96: 413 ～ 432 2010

The material of structures is steel, which is modeled by DAMTEP and YLDVM.
The stiffening should be thicker than outer bottom and thinner than inner bottom Acknowledgements This work was financially supported by the China Postdoctoral Science Foundation (20100471794).
Ship Science and Technology. 29(1) (2007) 91-94
Journal of Harbin Engineering University. 29(4) 2008. 326-331