| ====================================================================== ENGINEERING NEWS IN BRIEF E-Mail Newsletter No.51 Issued by the Asian TOP Panel, March 2006 The Chinese Mechanical Engineering Society (CMES) The Institution of Engineers, Indonesia (PII) The Japan Society of Mechanical Engineers (JSME) The Korean Society of Mechanical Engineers (KSME) ====================================================================== According to the agreement made in the 2nd Asian TOP Panel Meeting, the ENGINEERING NEWS IN BRIEF (E-mail newsletter) has now been edited by the CMES for the year 2006. ====================================================================== [Contents] (1) The 2006 International Mechanical Engineering Education Conference (Source: CMES) (2) Key Technologies of Modern Heavy Die for Gringpress (Source: CMES) (3) Lubrication Characteristics of the Water Hydraulic Sliding Shoe Pairs (Source: CMES) (4) Reference Model and Key Technology for Human Factors Simulation in Manufacturing Systems (Source: CMES) (5) Peculier behavior peculiar behavior of a bacterium swimming close to a wall (Source: JSME) (6) Development of an ETS-Vlll Boarded Deployable radiator (Source: JSME) (7) Board of Governors of KSME in 2006 (Source : KSME) (8) Rapid Prototyping and Reverse Engineering Application for Orthopedic Surgery Planning (Source : KSME) (9) PDMS / Glass Based DNA Microbiochip for Restriction Enzyme Reaction and Electrophoresis Detection (Source : KSME) ======================================================================== (1)The 2006 International Mechanical Engineering Education Conference The 2006 International Mechanical Engineering Education Conference cosponsored by Chinese Mechanical Engineering Society (CMES) and American Society of Mechanical Engineers (ASME) was held from March 31 to April 4 in Beijing. About 300 university deans and heads, scholars and entrepreneurs of mechanical engineering from 14 countries and regions participated in the conference. The theme of the conference is Mechanical Engineering Education and Global Industry. A Welcome Banquet was held at the Banquet Hall of the Great Hall of the People on April 1 evening. The distinguished guests present are Presidents, General Secretaries and representatives from CMES, ASME, the Institution of Mechanical Engineers (IMechE), the Association of German Engineers (VDI), Japanese Society of Mechanical Engineers (JSME) and Mexican Society of Mechanical and Electrical Engineers (AMIME), etc. 27 outstanding professors, scholars and entrepreneurs from China, North America, Europe and Asia presented excellent speeches around the five conference topics. Another 17 school deans/department heads of mechanical engineering made presentations on the International Forum of the conference. The conference examined and evaluated the impact of high-tech development on nowadays mechanical engineering education, and the challenges and opportunities in the fields of education, industry and science & technology. Meetings between CMES and IMechE, between CMES and ASME were held respectively. In-depth discussion was held on specific issues in terms of practical and potential cooperation at a friendly atmosphere. Agreement of Cooperation between CMES and IMechE, and Memorandum of Understanding between CMES and ASME were signed at the Great Hall of the People. CMES President Lu Yongxiang, General Secretary Song Tianhu, IMechE President Andrew Ives, General Secretary Michael Moore, and ASME President Richard Feigel, General Secretary Virgil Carter took part in the signing ceremony. During the conference in April 2, CMES Mechanical Engineering Department Heads/School Deans Meeting was held in Beijing Friendship Hotel. Over 160 deans and heads attended the meeting. The conference achieves its goal and produces significant influence on mechanical engineering education and research, and win-win cooperation between universities and industry. For more post-conference information, please visit CMES website www.cmes.org. ======================================================================== (2) Key Technologies of Modern Heavy Die for Gingpress LIN Feng YAN Yongnian WU Rendong LU Qingping ZHANG Renji Department of Mechanical Engineering, Tsinghua University Very high press intensity features largely in modern heavy close die forging presses. The huge tonnage prestressed hydraulic cylinder with very high pressure and the prestressed wire wound frame with high strength, high reliability, and high fatigue life are the core techniques to realize the very high press capability, reduce the press volume, lighten its weight, and control its manufacturing difficulties and cost. During designing and manufacturing the desired cylinder, the sealing problem under very high pressure and large clearance, eliminating the stress concentration and increasing the bearing capability are the key know-how. The prestressed structure can greatly increase fatigue resistance properties of the cylinder and frame. The prestressed wire wound can exert the strength potential of the material and impressively reduce the frame's volume and weight, and its manufacturing cost. ======================================================================== (3) Lubrication Characteristics of the Water Hydraulic Sliding Shoe Pairs LIU Huanlong KE Jian WANG Guozhi YU Lanying School of Mechanical Engineering, Southwest Jiaotong University In order to improve the anti-turnover ability of water hydraulic slipper friction pairs and realize it's flowing characteristics more accurately, the new structure of water hydraulic shipper friction pairs named three-cavity independent supporting is presented and is lubrication characteristics such as anti-turnover ability and leakage etc. are researched. For this kind of slipper, the idea of the independent damping and supporting cavity is adopted and the independent stiffness adjustment is used to increase its anti-turnover ability. Bysimulation and analysis, the differences of anti-over ability between the new slipper friction pairs and the common ones are compared. Furthermore, the flowing pattern in the flow field of water hydraulic slipper friction pairs is possibly laminar flow but not the wholly laminar one after the factors such as flowing inertia of water and the surface roughness etc. are generally considered, therefore, the difference of the flowing pattern model may directly affect the calculating results of leakage flow rate and further affect the accuracy of the design calculation. The results can present certain references and more accurate calculation idea where the structure design of the slipper friction pairs of water hydraulic piston pump is performed. ======================================================================= (4) Reference Model and Key Technology for Human Factors Simulation in Manufacturing Systems ZHANG Xiaodong YANG Yu, YI Shuping . College of Mechanical Engineering, Chongqing University SCHLICK C SCHMIDT L Institute of Industrial Engineering and Ergonomics, Aachen University of Technology, Germany Human factors simulation is an important tool for human-centered manufacturing systems design and analysis. In order to evaluate human factors in manufacturing systems, a hierarchical reference model and a systematic methodology to guide the accomplishment of human factors simulation are proposed. The simulation characteristics and application areas are described in the model. Simulation approaches for human-task-oriented simulation are discussed, and critical technologies including task network modeling, human error evaluation and simulation, and work requirements analysis are illustrated in detail. In a case study, the simulation approaches are proved to be effective in the human factors design and evaluation of a 3D-laser welding autonomous production cell. ============================================================ (5) Peculiar behavior peculiar behavior of a bacterium swimming close to a wall Tomonobu GOTO, Tottori University The singly flagellated bacterium, Vibrio alginolyticus, moves forward and backward by alternating the rotational direction of its flagellum. The bacterium has been observed retracing a previous path almost exactly and swimming in a zigzag pattern. In the presence of a boundary, however, the motion changes significantly, to something closer to a circular trajectory. Additionally, when the cell swims close to a wall the forward and backward speeds differ noticeably. Numerical results reveal that bacterium motion is apparently influenced by pitch angle, i.e. the angle between the boundary and the swimming direction, and that forward motion is more stable than backward motion with respect to pitching of the bacterium. From these results, a set of diagrammatic representations have been created which explain the observed asymmetry in trajectory and speed between the forward and backward motions. For forward motion, a cell moving parallel to the boundary will maintain this trajectory. However, for backward motion, the resulting trajectory depends upon whether the bacterium is approaching or departing the boundary. Fluid-dynamic interactions between the flagellum and the boundary vary with cell orientation and cause peculiarities in the resulting trajectories. ============================================================ (6) Development of an ETS-Vlll Boarded Deployable radiator Takahiro YABE, Japan Aerospace Exploration Agency (JAXA) This article describes an overview of Deployable Radiator (DPR) with the loop Heat Pipe (LHP) on Engineering Test Satellite type Vlll(ETS-Vlll), which is Japan's first 3-ton-class geostationary satellite, developed by Japan Aerospace Exploration Agency (JAXA). DPR is one of key technologies concerned with thermal control for a high-powered satellite bus or internal equipments in communication, broadcasting and scientific satellites, since it can give larger heat rejection are for such satellites. DPR is the on-orbit experimental equipment on ETS-Vlll for building up the high-heat -transport technologies in Japan. The LHP, which is a two-phase heat transport device suing capillary evaporator, carriers the heat of 300W from hot experimental heaters to a cold external radiator panel by latent heat of vaporization with a working fluid of Ammonia. In the LHP the reservoir of working fluid is embedded in the capillary evaporator. On-orbit experiments on DPR are scheduled in FY2006 ============================================================ (7) Board of Governors of KSME in 2006
============================================================ (8) Rapid Prototyping and Reverse Engineering Application for Orthopedic Surgery Planning Dong-Gyu Ahn, Jun-Young Lee, Dong-Yol Yang, KAIST This study describes rapid prototyping (RP) and reverse engineering (RE) application for orthopedic surgery planning to improve the efficiency and accuracy of the orthopedic surgery. Using the symmetrical characteristics of the human body, CAD data of undamaged bone of the injured area are generated from a mirror transformation of undamaged bone data for the uninjured area. The physical model before the injury is manufactured from Polyjet RP process. The surgical plan, including the selection of the proper implant, pre-forming of the implant and decision of fixation positions, etc., is determined by a physical simulation using the physical model. In order to examine the applicability and efficiency of the surgical planning technology, two case studies, such as a distal tibia comminuted fracture and an iliac wing fracture of pelvis, are carried out. From the results of the examination, it has been shown that the RP and RE can be applied to orthopedic surgical planning and can be an efficient surgical tool. ============================================================ (9) PDMS / Glass Based DNA Microbiochip for Restriction Enzyme Reaction and Electrophoresis Detection Joon-Young Choi, Yoomin Ahn, Seung-Yong Hwang, Hanyang University This reports low-cost PDMS/glass based DNA microbiochip for the restriction enzyme reaction and its products detection using the capillary electrophoresis. The microbiochip (25㎜ × 75㎜) has the heater integrated reactor (5 ) for DNA restriction enzyme reaction at 37 ℃ and the microchannel (80 x100 x58㎜) for the capillary electrophoresis detection. It is experimentally confirmed that the digestion of the plasmid (pGEMR-4Z) by the enzyme (Hind Ⅲ and Sca Ⅰ) is performed for less than 10 min and its electrophoresis detection is able to sequentially on the fabricated microbiochip. ============================================================ Editor : Tian Ruizhu The Dept. of Internationa Affairs Chinese Mechanical Engineering Society 
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