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The Optimization Design of Opening and Closing Mechanism of Aerodynamic Braking in High-Speed Train Tian Chun 1, a, Wu Meng-ling 1,b, Li Cheng1,c, Zhu Lu1,d 1Research Institute of Railway & Urban Mass Transit, Tongji University, Shanghai, 200092, CHINA achtian@tongji.edu.cn, bwuml_sh@163.com, cchenglitj@163.com, d523849332@qq.com Keywords: Aerodynamic Braking; Opening and Closing Mechanism; Brake Panel; Rotation Axis; Air cylinder Abstract.
Research on Air Brake Board of High-speed Train[C]//China Institute of Aerodynamics. 04 Industrial Aerodynamics Conference, Beijing: Industrial Aerodynamics Conference, 2004: 137~141 [4] Tian Chun, Wu Meng-ling, Ren Li-hui, Wang Xiao-yan.
Rolling Stock. 2009,47（3）：20~12 [5] Tian Chun, WU Meng-ling, ZHU Yang-Yong, FEI Wei-wei.
Journal of Tongji University (Natural Sicence), 2011, 39(5):705-709 [6]Meng-ling WU, Yang-yong ZHU, Chun TIAN, Wei-wei FEI, The influence of aerodynamic braking on the pressure wave of a crossing high-speed train, Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2011, 12(12):979-984 [7] ZhuoJun Luo, Jianyong Zuo.

Tsu-Tian Lee, National Taipei University of Technology, Taiwan Prof.
Bo Yang, Jinan University, China Prof.
Xuemin Tian, China University of Petroleum, China Prof.
Fuzeng Yang, Northwest A&F University, China Sponsors Shandong University, China Tianjin University, China Harbin Institute of Technology, China Hong Kong University, China Beijing Jiaotong University, China

The proposed method is applied to a Tian jiashan Tunnel construction of Shanghai-Kunming (Hu-Kun) high-speed railway.
Based on the case of Tian jiashan Tunnel in Hu-Kun high-speed railway, this paper introduced fuzzy mathematics to establish a three-stage fuzzy synthetic evaluation model.
Case analysis Tian jiashan tunnel is located in section IV of Hu-Kun high-speed railway in Hunan, it starts from DK394+235 to DK394+778, with the length of 543m, and the maximum buried depth of 50.4m.
(3) In the case of Tian jiashan tunnel, the paper combined the analytic hierarchy process and fuzzy synthetic judgment to get the ranking weight vector.
References [1] QI Shi-fang, JIA Yue-yang.

Deformation Simulation of surrounding rock at faulted zone during roadway drivage Yue-ming Qi 1,a , Xiao-er Zhao 1,b，, Hai-bo Bai 1,c , Yang Jiao 1,d 1State Key Laboratory for Geomechanics&Underground Engineering, China University of Mining and Technology, Xuzhou 221008, China aym_qi@126.com, b zxe7866321@126.com, chbbai@126.com, djy19880103@126.com Keywords: transportation roadway, deformation of surrounding rock , faulted zone, COMSOL Multiphysics Abstract：Sometimes transportation roadways needed to go through the water-conducted normal fault with high dip and big fault throw in order to ensure the mining continuance, the two key factors were fault water and deformation of surrounding rock which influenced the digging safety and stabilization of roadways.
Li-tian Bo et al had observed the roadway deformation of mudstone roof and studied the surrounding rock fracture evolution[10].
Referrences: [1] Hai-bo Bai, Jian-li Yang, Chang-shen Wang:Journal of Mining&Safety Engineering.
[5] Lian-chong Li, Tian-hong Yang, Zheng-zhao Liang,et al:International Journal of Coal Geology.
[in Chinese] [10] BO Li-tian, Xing-Yang Zhang, Qun Xu.

Yang, Y.B.
Tian, Y.W.
Tian, Y.W.
Yang, J.
Yang, H.

Tian, and S.
Yang: Chem.
Yang, J.
Tian: Chem.
Tian, B.Z.

Tian: Adv.
Tian and S.J.
Yang: Chem.
Tian and Y.L.
Yang and G.Z.

Experimental Study on Laser Assisted Milling of Sintered Silicon Nitride Ceramics Xiangwei Wang1,a,Hongzhi Zhang2,b,Xuefeng Wu2,c, Yang Wang2,a and LijunYang2,d 1School of Light Industry, Harbin University of Commerce, Harbin, Heilongjiang, 150028, China 2School of Mechatronics Engineering, Harbin Institute of Technology, Harbin, Heilongjiang, 150001, China awyyh@hit.edu.cn, bzhz-hit@163.com, chitxuefeng@gmail.com, dyljtj@hit.edu.cn Keywords: Laser assisted machining, Laser assisted milling, Ceramic machining, Silicon nitride Abstract.
Tian [9] developed a transient, three-dimensional thermal model for LAML and successfully conducted experiments on silicon nitride ceramic and Inconel 718.
Yang[10,11] demonstrated the machinability and feasibility of milling sintered reaction bonded silicon nitride ceramics under laser assistance.
Lei: Transactions of the ASME Vol.131 (5) (2009), p.0510071-05100710 [9] Tian Y, Wu B, Anderson M: Journal of Manufacturing Science and Engineering Vol.130(3) (2008), p.31013-31019 [10] Yang B, Lei S: Int.
Mechatronics and Manufacturing Systems Vol.1(1) (2008), p.116-130 [11] Yang B, Shen X, Lei S: International Journal of Machine Tools and Manufacture Vol.49(3-4) (2009), p.344-350 [12] Melkote S, Kumar M, Hashimoto F: CIRP Annals - Manufacturing Technology Vol.58(1) (2009), p.45-48

Tian and S.
Yang: J.
Tian, B.
Yang, J.
Yang: J.

Yang: Journal of Propulsion Technology Vol.27-2(2006) p. 101-105
Yang, B.G.
Yang and J.J.
Tian, W.X.
Yang and B.L.