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Online since: July 2011
Authors: Zhong Yi Ren
Quadruple-arc Gear Design, Digital Processing and Carrying Capacity Test ZhongYi Ren School Of Mechanical engineering, NingXia University, yinchuan,750021, PR China rzy025@sina.com Key words: QssXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXuadruple-arc gear, Digital Processing, Tooth curve Abstract: Both the industrial sector and the academic study is the single-arc and double-arc gear at present, that is, tooth profile curve are composed by one or two arc.
Soviet engineer Novikov change transverse tooth profile to arc of arc gear in 1954, And gain a Soviet Union patent(USSR,Pat.No.109113,1956).
Tests show that arc gear carrying capacity is three to four times higher than involute gear in the same material and same size[1,2].
Transmit processing code to the CNC machine tools, and use the ball nose mill processe gear tooth surface, CAM software used in this article is CAXA Manufacturing Engineer 2008, CNC machine tools is a Swiss MIKRON 4-Axis vertical machining center, the tool is ball nose mill which buy from UNIONTOOL, as show in Fig2.
Online since: November 2011
Authors: J. R. Regalbuto, Jian Ming Liu
Regalbuto2, b 1Tianjin Key Laboratory of Aquatic Science and Technology, Tianjin Institute of Urban Construction, Tianjin 300384, China 2Department of Chemical Engineering, University of Illinois at Chicago, 810 S Clinton Street, Chicago, IL 60607, USA ajimliu@tjuci.edu.cn, bjrr@uic.edu Keywords: Oxide, pH, Adsorption, EXAFS, Electric double layer.
EXAFS Analysis EXAFS measurements were performed at the Advanced Photon Source (APS) at Argonne National Laboratory (Argonne, IL, USA) on the undulator beamline of the Material Research Collaborative Access Team (MRCAT).
Acknowledgements The support of the former CTS division of the Engineering Directorate of the National Science Foundation of U.S. is gratefully acknowledged.
Online since: January 2014
Authors: Hui Xu
How to realize the accurate positioning of the operation and which driving mechanism to adopt are the research key points and difficult points of cable endoscope system.
The difficult points mainly focus on: choosing a driving mechanism suitable for inner cavity motion,the structure of not causing the tissue damage(material, dimension,weight,etc), the operational micro system and needing to solve the system heating problem.
Technology Development and Application of Computer Aided Surgical Operation System.Beijing Biomedical Engineering,1995,14(3):184~190 [4] JIANG Shan, YANG Zhiyong,LI Jia.
Beijing Biomedical Engineering, 1998,17(1):49~54 [8] SHAO Bing, SUN Lining, DU Zhijiang.
Online since: May 2014
Authors: Dan Chen, Liu Yang, Kai Ni
This is the key to prevent Ammonia leakage accidents from happening. 2 Ammonia leaking accident causes and influence factors analysis 2.1 Causes of Ammonia leakage accidents Through the analysis and statistics for 21 Ammonia leakage accidents, we can find out that system design flaws or errors, poor quality of construction, man-made destruction and natural disasters, corrosion, improper material selection, mechanical punch, sealed and violating operation regulations, incorrect operation are the main causes of Ammonia leakage accidents[2].
HU Min-tao, DENG Hang, Environment Risk Analysis on Leakage of Liquid Ammonia Tank in Synthetic Ammonia Plant, J.Safty AND Enviromental Engineering 2009, 16(2):102
[2] PAN Xu-hai, JIANG Jun-cheng, Analysion Important Release Accidents and Modes Study, Chemical Industry and Engineering, 2002,19(3):248-252
Online since: February 2012
Authors: Mo Yang, Jin Cheng Song
Low loss hybrid dielectric-metal-dielectric waveguides for sub-micron mode confinement and efficient directional coupling Mo Yang1, a and Jincheng Song2,b 1 Department of Mechanical Engineering, North China Institute of Aerospace Engineering, LangFang, Hebei, 065000, China 2 The First Metrology and Measurement Institute of CASC, Beijing, 100076, China ayangmo101@163.com, bajin2008@tom.com Keywords: Low loss, Confinement, Waveguides and Directional Couplers Abstract.
The high-index dielectric material is assumed to be GaAs, whose refractive index is taken as 3.5.
We then investigate some of the key parameter effects on properties of the long-range hybrid mode.
Online since: June 2009
Authors: Jae Won Baik, Chang Wook Kang
Measuring Surface Uniformity in Chemical Mechanical Polishing Jae-won Baik1, a and Chang-wook Kang2, b 1 Department of Industrial Engineering, Hanyang University, Korea 2 Department of Information and Industrial Engineering, Hanyang University, Korea a liv26@hanyang.ac.kr, bcwkang57@hanyang.ac.kr Keywords: Chemical mechanical polishing , Non-uniformity, Geometric mean, Arithmetic mean Abstract.
CMP combines chemical action with mechanical abrasion to achieve selective removal of material through polishing.
The non-uniformity of wafer-scale thickness is a key metric for controlling a CMP process and gauging the quality of the outgoing product.
Online since: July 2011
Authors: Wei Cui, Guo Fu
Experimental Research on the Composite Steel-Concrete Beams with Partial Shear Connection Guo Fu1,a,Wei Cui2,b 1School of Civil Engneering and Architecture, ChangSha University of Science &{TTP}-250 Technology, Changsha, Hunan, 410114, China 2China Petroleum Pipeline Engineering Corporation, Langfang, Hebei, 065000, China afuguo2008@yahoo.cn, bcuiwei@cppe.com.cn Key words: composite steel-concrete beams (SCB), degree of shear connection, interface slip, deflection.
Steel material is Q235, of which the yield strength of steel girder I14 is 344.1MPa, steel girder I18 yield strength is 272.1MPa.
If using the reduced stiffness method to calculate the elastic deflection of composite SCB with partial shear connection, the calculating values will be less than the measured values, so it is somewhat insecure for the engineering.
Online since: October 2010
Authors: Chun Sheng Zhou, Wu Zhao, Kai Zhang
Knowledge Support Technology of Creative Design for Electromechanical Products Kai ZHANGa, Wu ZHAO b, Chunsheng ZHOU c School of Manufacturing Science & Engineering, Sichuan University, Chengdu, 610065, People's Republic of China a zkscu2005@163.com, b zhaowu@scu.edu.cn, czcs-573216@163.com Keywords: Creative design, Knowledge support, QFD, HOQ Abstract.
Introduction Product design is a practice of creative thinking activities to meet certain requirements of people in the specific material conditions.
Knowledge is one of the key attributes of creativity model in creative design.
Yu: China Mechanical Engineering, Vol. 19 (2008) No.3, pp. 308-313.
Online since: December 2010
Authors: Yi Sheng Zhang, Xiao Yu Luo, Yong Ping Zheng
Vibration Performance Analysis of FR Vibration Damper Using Finite Elements Method Luo Xiaoyu1, a, Zhang Yisheng1, b and Zheng Yongping2, c 1 State Key Laboratory of Material Processing and Die & Mould Technology, Huazhong University of Science and Technology, Wuhan, 430074, China 2 Central Southern China Electric Power Design Institute, Wuhan, 430074, China alxy86@163.com, b Zhangys@mail.hust.edu.cn, czhengyongping@csepdi.com Keywords: Vibration damper, Numerical simulation, Finite element method, Dynamic analysis.
In the past, engineers design the vibration damper based on experience and numerous experiments.
Numerical simulation can bring great benefits to engineers.
High Voltage Engineering, Vol 34, No.04(2008), p.638-642 [3] X.X.
Online since: August 2015
Authors: T. Suresh, C. Selva Senthil Prabhu, F. Justin Dhiraviam, V. Naveen Prabhu
Selva Senthil Prabhu4,d 1,* PG Scholar, Kumaraguru college of Technology, Coimbatore-641049 2 PG Scholar, SSN college of engineering, Chennai-603110 3 PG Scholar, Kumaraguru college of Technology, Coimbatore-641049 4Assistant professor, Dr.Mahalingam College of Engineering and Technology, Pollachi-642003 a,*justindhiraviam.f@gmail.com, b naveenprabhu91@gmail.com, c sureshthiru1044@gmail.com, dsspmts@gmail.com Keywords: Turbochargers, Intercoolers, Detonation, Efficiency, Fuel Consumption Abstract.
Key component for this is turbocharged diesel internal combustion engine.
But due to the use of a blower of 0.5 HP and considering transmission losses (approximately 1HP can be deducted), overall brake horse power will increase up to 97BHP Table 7 Comparison of temperatures of new arrangements Method Temperature (0C) Inlet Outlet Modified Arrangement Thi Tci Tho Tco Theoretical 170 35 48.12 110.97 Analysis 170 35 45 107 Conclusions Though the intercooler with tube and external fins did the required cooling effect, the pressure drop was more and the material usage for manufacturing such types is also more.
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