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Application of the Regularization Chaos Prediction Model in Aero-engine Performance Parameters Yongsheng Shi1, Junjie Yue1,Yunxue Song1 1 College of Aeronautical Engineering, Civil Aviation University of China ,Tianjin ,China, shi_ ys@163.com Keywords: Exhaust gas temperature (EGT); Regularization;Chaotic prediction; Principal component regression(PCR);Ridge regression(RR); Aero-engine Abstract.
[4] Song Yunxue, Peng Peng; Shi Yongsheng, Chaos arithmetic for civil aero-engine forecasting[J], Journal of Aerospace Power, 2011, 26(3).675–679

Seismic Performance of Prestressed Reinforced Concrete Piles Reinforced with Nonprestressed Reinforcements Tiecheng Wang1,2,a, Wenjin Wang1,b, Hailong Zhao1,2,c and Zhijian Yang1,d 1 School of civil Engineering, Tianjin University, Tianjin 300072, China 2 Key Laboratory of Coast Civil Structure (Tianjin University), Ministry of Education, Tianjin 300072, China awangtiecheng@eyou.com, bwwj_tumu@126.com, czhaohailong@tju.edu.cn, dfaemail@163.com Keywords: PHC pile; PRC pile; low-cycle loading; seismic performance; ductility.

Failure Factor Research of Composite Laminates Containing Holes Based on MSC.Nastran Feng Zhenyua, Yang Qianb , Yin Xingyanc , Chen Zhaochend, Zou Tianchune Civil Aviation University of China, Tianjin 300300, P R China amhfzy@163.com, byangqian1103 @sina.com, cstardreamyin@163.com ,dzhaochen68@sina.com, ezoutianchun@yahoo.com.cn,  Keywords: Composite laminates; Open hole; Failure factor; Residual strength Abstract: With the extensive use of composite materials in aviation industry, the research of holes which affect composite residual strength has become very important.
Therefore, we often simplify defects including multi-layer fibers breakage or damages and impact damages into the equivalent elliptical holes or round holes in engineering calculation.
Acknowledgements This work was supported by the Research Starting Foundation of Civil Aviation University of China (No. 09QD07S).

Pukl: Material model for finite element modelling of fatigue crack growth in concrete, Procedia Engineering 2 (2010) 203–212 [6] S.
Keršner: The fatigue crack growth in cement based composites: Experimental aspects, Life-Cycle and Sustainability of Civil Infrastructure Systems, edited by A.
Cervenka: Modelling high-cycle fatigue of concrete specimens in three point bending, Life-Cycle and Sustainability of Civil Infrastructure Systems, edited by A.

Study of Milling Force in High Speed Milling Carbon Fibre Reinforced Plastics(CFRP) Using Diamond Tool Dong Liu 1, a, Huaiying Wang2, b Honghai Xu 1,c, Chaoying Zhang 1,d 1 College of Mechanical Electronical and Engineering, North China University of Technology, Beijing, 100144, China 2 Beijing Institute of Aerospace Testing Technology,Beijing 100074, China, a liudong@ncut.edu.cn,,cxuhh@ncut.edu.cn, dzhangchaoying@ncut.edu.cn Keywords: Milling force, Carbon firbre reinforced plastics, Diamond tool, High speed Milling Abstract.
Introduction Composite materials such as fibre-reinforced plastics(CFRP) are extensively used in aerospace, automotive and civil applications due to their excellent mechanical properties.
These properties made them especially attractive for aerospace and civil applications.

Static and Dynamic Elastic-plastic Analysis of a Storey-adding Structure Yuan Zhang 1, a 1 College of Architecture and Civil Engineering, Taiyuan University of Technology, Taiyuan, Shanxi, 030024, China agreatzhang112@163.com Keywords: Storey-adding Structure, Static and Dynamic Elastic-plastic Analysis, Carrying Capacity.
Civil and Building of Shenzhen, 2007, 4(1):22-26

Analysis the cable replacement method of Tianjin Yonghe bridge Wenjuan YAO 1，Wu YANG 1，Xiaoyu LIU 2 1Department of Civil Engineering,Shanghai University,Shanghai 200072,China 2College of civil and architecture,Chongqing Jiaotong University,Chongqing 400074,China Email: yangwu_83@163.com Keywords:  Cable-stayed Bridge ; cable replacement ;Cable tension Abstract: Taking Tianjin Yonghe bridge for example, the finite element method is adopted to simulate each stages of cable replacement process, the dates of tension, the alignment of main beam and the change of stress before and after cable replacement are compared and analysed, The measured value is greatly consistent with calculated value, Stress state of the bridge has been greatly improved, the weight of main beam bearing by the cable will be shared by a few closed cable after unloading, so the cables which are more serious corroded should be replaced.

Prediction of longitudinal compression strength for a 2.5D-C/SiC composite based on laminate theory Yanjun Chang1, a, Guiqiong Jiao2,b , Keshi Zhang1,c 1 College of civil engineering and architecture, GuangXi university, Nanning 530004, P.R.China 2School of Mechanics and Civil Construction, Northwestern Polytechnical University, Xi'an 710072, P.R.China achangyj@gxu.edu.cn, bjiaogq@nwpu.edu.cn, czhangks@gxu.edu.cn Keywords: C/SiC composites; Compression; Woven structure; Strength principle; Laminate theory.

Experiment study on the durability of geotechnical prestressed anchorage structure under cyclic loading Sifeng Zhang1, a, Xiuguang Song2,b , Yanmei Li3,c 1School of Civil Engineering, Shandong Jianzhu University, Jinan 250101, China; 2 School of Civil Engineering，Shandong University, Jinan 250061, China; 3 Shandong Academy of Environmental Science, Jinan 250013, China; asddxzsf@163.com, bsongxiuguang@sdu.edu.cn, cqqhrlym@163.com Keywords: Geotechnical anchorage structure; Prestressed force fluctuation; Cyclic loading; Durability; Model test Abstract: Based on the analysis of the pretension force influence factors for geotechnical prestressed anchorage cables that are used in a practical engineering, the cyclic loading characteristics of prestressed force long-term variation is revealed, and the conception of large and small cycles of prestressed force variety are also put forward.
Chinese Journal of Rock Mechanics and Engineering, 2008, 27(3): 607-614.
Chinese Journal of Rock Mechanics and Engineering, 2005, 24(12): 2113-2118.
Chinese Journal of Rock Mechanics and Engineering, 2007, 26(9): 1888-1892.
Geotechnical Engineering in world, 2009, 12(6): 63-66.

A Comparative Study of Viscoelastic Boundary Parameters for Bedding Rock Hu Hongyun1,2,a*, Zhou Xiaojun1,2,b and Chen Tao3,4,5,с 1Key Laboratory of Transportation Tunnel Engineering, Ministry of Education, Southwest Jiaotong University, Chengdu, Sichuan 610031, China 2School of Civil Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, China 3School of Transportation and Logistics, Southwest Jiaotong University, Chengdu, 610031, China 4National Railway Train Diagram Research and Training Center, Southwest Jiaotong University, Chengdu, 610031, China 5National and Local Joint Engineering Laboratory of Comprehensive Intelligent Transportation, Southwest Jiaotong University, Chengdu, 610031, China.
aswjtuhhy@163.com, bzhouxjyu69@163.com, cswjtuchentao@qq.com Keywords: Bedding rock, Viscoelastic boundary, Transverse isotropic, Earthquake engineering, Wave simulation.
The bedding rock mass is a common geological configuration in earthquake engineering, and the wave method is often used in seismic response analysis, but the accuracy of the analysis is restricted because of the viscoelastic boundary parameters can only be take approximate values.
Liao, Introduction to wave motion theories in engineering, Second ed., Science Press, 2002, pp. 141-155
Zhang, Improved ubiquitous-joint model and its application to underground engineering in layered rock masses, Rock.