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Modal Experiment Research on Fluid-solid Coupling Vibration of Hydraulic Long-straight Pipeline of Shield Machine Jing Hua Xiea, Ke Tianb, Li Hec, Tian Ren Yangd, Xiang Heng Zhue State Key Laboratory of High-performance Complex Manufacturing, Central South University, Changsha 410083, China axjh@csu.edu.cn, bdelphin.tian@gmail.com, c410282899@qq.com, dyangtianren570@163.com, e838406682@qq.com Keywords: Shield machine, Fluid-solid coupling, Modal experiment, Natural frequency Abstract.
Introduction The vibration problem of high-pressure pipeline conveying fluid is one of hot issues concerned by many scholars for long term, which not only has important research value in theory, but also has extensive engineering background.
Shield machine is a typical high-power engineering equipment, which contains a number of complex hydraulic subsystem, and the distance of the hydraulic pipeline between its actuator and the power source is long, and the vibration phenomenon induced by the effect of fluid-solid coupling is very obvious.
The material of hydraulic long pipeline is the seamless steel tube, the hydraulic oil is the lightweight metal hydraulic oil, the system pressure is set to 30Mpa, and other pipeline parameters are shown in Table 1: Table 1 Main parameters of pipe conveying fluid and the fluid Pipeline Length L=8000[mm] Inter diamater R=9.5[mm] Wall thickness δ=3[mm] Elastic modulus E=210[Gpa] Mass density ρf=7800[kg/m3] Paisson ratio γ=0.3 Damping ratio ζ=0.02 Hydraulic oil Bulk modulus K=1.6[Gpa] Mass density ρf=890[kg/m3] Experimental Modal Analysis Experimental modal analysis of long straight pipeline without support in the middle.
Acknowledgements This research is supported by the National Key Basic Research and Development Program of China (973 Program, No. 2007CB714004).

The materials practically do not exhibit magnetic properties without an applied magnetic field.
Kulyk, Structural, magnetic and adsorption characteristics of magnetically susceptible carbon sorbents based on natural raw materials, J.
Li, Roles of ZnCl2 and FeCl3 in preparing high performance corn stover-based carbon materials for efficient removal of Cr (VI) from wastewater, J.
Engineering. 47 (2022) 102743
Coey, Magnetism and Magnetic Materials, Cambridge University Press, Cambridge, 2010

Simulation investigations on engineering example Project profile.
The parameters in the 3 schemes all refers to engineering geological reports provided by China Zhongtie Major Bridge Reconnaissance & Design Institute Company, Limited (BRDI) and Qingdao Institute of Oceanography, SOA.
Vol. 220(2006), p. 53-61 [5] Dowding, CH, Rozen, A: American Society of Civil Engineers.
Vol. 99(2009), p. 611-625 [7] Lysmer J, Kuhlemeyer RL: Journal of the Engineering Mechanics Division ASCE.
Vol. 95(1969), p. 859–877 [8] Jingbo Liu, Yin Gu and Yixin Du: Chinese Journal of Geotechnical Engineering.

Benson, Mechanical properties of nanocrystalline materials, Progress in Materials Science 51 (2006) 427-556
Grimes, The development of superplastic magnesium alloy sheet, Key Engineering Materials (2010) 273-279
McNelley, Deformation mechanisms in superplastic AA5083 materials, Metall.
McNelley, Failure mechanisms in superplastic AA5083 materials, Metall.
Blandin, THERMEC 2011, 1-5 August 2011, Québec (Canada), Materials Science Forum, 706-709 (2012) 1128

Ecological Security and Protection Key laboratory of Sichuan Province, Mianyang Normal University, Mianyang 621000,China 3.
Chinese Journal of Environmental Engineering Vol.3(2009),p.1279-1283 [3]Y.B Wang, W.C Tan, S.X Zhen, et al.
Chinese Journal of Environmental Engineering.
Chinese Journal of Environmental Engineering Vol.3(2009), p. 1011-1014 [7]J.
Material Chemistry & Bioengineering Vol. 27(2011), p. 8-10 [13]L.J Wang, S.L Zhen, F Shu.

A New Algorithm Based Orthogonal Arrays for Design of Experiment on Nonlinear Functions Hsin-Chuan Kuoa Chao-Tsung Leeb Ching-Hai Linc Department of Systems Engineering and Naval Architecture, National Taiwan Ocean University, Keelung City, 202, Taiwan akhc@ntou.edu.tw baitsung@yahoo.com.tw c lch850@gmail.com Keywords:Taguchi method, design of experiments, full factorial array.
The Taguchi method has been widely used for designing high-quality products at low cost in engineering industries because the method provides an acceptable and effective solution.
H., “Application of Taguchi Method in the Optimization of End Milling Parameter,” Journal of Material processing Technology Vol. 145, pp.84-92, 2004
K., ”On Stochastic Optimization, Taguchi Methods Demystified; its limitation and fallacy Clarified,” Probabilistic Engineering Mechanics Vol. 16, pp.87-101, 2001
D., “Structure Analysis of Stress Concentration Melioration at Hatch Corner by using Key Groove,” Master Thesis, National Taiwan Ocean University, 2002

Coupled THM Model and Simulation of the Yucca Mountain and FEBEX Case Study within DECOVALEX-THMC Framework Xiaoyan Liu1, a, Chengyuan Zhang1,b and Quansheng Liu1,c 1 State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan,430071, China a liuxy@whrsm.ac.cn, bzhangcy@whrsm.ac.cn, cliuqs@whrsm.ac.cn Keywords: DECOVALEX; THM coupled simulation.
Task_D_THM includes two subtasks that involve analysis of coupled THM processes in two generic repositories [1,2], as follows: ① Task_D THM1: A generic repository located in saturated crystalline rock, where emplacement tunnels are backfilled with buffer material (FEBEX type). ② Task_D THM2: A generic repository located in unsaturated volcanic rock, with emplacement in open gas-filled tunnels (Yucca Mountain type).
Relevant comparison study is useful and needed to both numerical simulation and engineering application, and will carry on in next phase.
Liu, Chinese Journal of rock mechanics and engineering, Vol. 25(2006), p.709-720

Identification of Fractal Scale Parameter of Machined Surface Profile Dingshi Lia, Yidu Zhangb, Qiong Wuc and Peng Wangd State Key Laboratory of Virtual Reality Technology and Systems, School of Mechanical Engineering and Automation, BeiHang University, Beijing 100191, China aldsing@163.com, bydzhang@buaa.edu.cn, cwuqlc@126.com, dwp.buaa@gmail.com, Keywords：Fractal dimension D, Scale parameter G, Parameter identification, Power spectrum method, Structure function method, Variance method Abstract.
The fractal nature of a variety of engineering surfaces has been shown by reference [5].
The material of test pieces is aluminium alloy.
[6] A.L.Wang,C.X.Yang: Chinese Journal of Mechanical Engineering, Vol. 38 (2002) No.5, pp.80-85.

Adaptive Fuzzy PID Controller of a Master-Slave Robotic Catheter System in Minimally Invasive Surgery Xi-mei ZHAO1,2,a, Ming-ming JIANG1,b , Hong-yi LI2,c and Hao LIU 2,c 1School of Electrical Engineering, Shenyang University of Technology , Shenyang, 110870, China 2State Key Laboratory of Robotics, Shenyang Institute of Automation Chinese Academy of Sciences, Shenyang Liaoning, 110016, China asut_zxm@hotmail.com, bjiangmingming117@sina.com, c185277847@qq.com Keywords: Master-Slave Robotic Catheter System, Dynamic model, Adaptive Fuzzy PID Control.
In order to simplify the calculation of the system, the analysis of the moment of inertia is as follows: 1) The DC servo motor plays a leading role to the moment of inertia, and it occupies a large share in the whole system. 2) The transmission device and the gear mechanism are usually made of aluminum material, the value of inertia converted onto the motor axis is small.
[2] X Ma, S Guo, Development of a PID Controller for a Novel Robotic Catheter System, Proceedings of the 2011 IEEE/ICME International Conference on Complex Medical Engineering, pp. 64-68, 2011 [3] N Xiao, S Guo, B Gao, X Ma, Controller Design for a Robotic Catheter Teleoperation System, Proceedings of the 2012 IEEE/ International Conference on Complex Mechatronics and Automation, pp. 353-358, 2012 [4] Y Fu, A Gao, H Liu.
Development of a novel robotic catheter system for endovascular minimally invasive surgery, Complex Medical Engineering (CME), 2011 IEEE/ICME International Conference,pp. 353-358, 2012 [5] C Ji ,Z.

COUPLING MODEL ANALYSIS ON FLUID STRUCTURE INTERACTION IN LIFTING PIPELING BASED ON ADINA ZhaoWang1 a*, Zhijin Zhoua, Hao Lua, Zejun Wenb , Yimin Xiac, a School of Mechanical & Electrical Engineering;Hunan University of Science and Technology; Xiangtan 411201, China; bHunan Provincial Key Laboratory of Health; Hunan University of Science and Technology; Xiangtan 411201, China; cKey Laboratory of Modern Complex Equipment Design and Extreme Manufacturing; Central South University; Changsha 410083,China Keywords: lifting pipeline; fluid structure interaction; finite element; ADINA; modal analysis Abstract.
This transfer agreement enables Elsevier to protect the copyrighted material for the authors, but does not relinquish the authors' proprietary rights.
Based on the pressure pipe ADINA fluid-structure interaction analysis [J], Journal of Wuhan University (Engineering Science),2009，42(2)：264-267
Engineering Mechanics，2000，17(1)：1-12