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Evaluation of T-72 tank driver seat based on anthropometric dimensions of Ethiopian military tank drivers

AIP Conference Proceedings 2022年第1期2648卷

作者： Aliyi Umer Dereje Engida G. M. Sayeed Ahmed U. Pranavi 1College of Engineering Defence University Bishoftu Ethiopia 2Addis Ababa Science and Technology University Addis Ababa Ethiopia 3Program of Mechanical Design and Manufacturing Engineering School of Mechanical Chemical and Materials Engineering (SoMCME) ASTU ADAMA Ethiopia.P.O.Box:1888 4Center of Excellence for Advanced Manufacturing Engineering Program of Mechanical Design Ethiopia.P.O.Box:1888 5Department of Mechanical Engineering Vardhaman College of Engineering Hyderabad-501218 India

In the world it is difficult to design in terms of average dimension. For this reason anthropometric plays a great rule in the world in design of products. In Ethiopia T-72 tanks are the most important weapons that give a strong support to the ground force in the battle field. So the question of the correct ergonomically design and analysis of the driver seat especially in terms of comfort is mandatory so due to this fact, study anthropometric of driver's seat is very important. It is necessary to define the drivers’ space and seat dimensions by considering the size of the average people according to their body dimensions. The basic questions for this research are (i) To what extent the soviet fabricated tank driver's seat is comfortable to Ethiopia army, (ii) Is there significant different between the body size dimension of soviet and Ethiopian army, and (iii) The Ethiopian military derivers have awareness of the comfort. The main goal of this paper is to conduct descriptive survey on an ergonomics assessment of driver's seat of T72 tank. Following sitting height, popliteal height, sitting to shoulder height, shoulder breadth, buttocks to popliteal length, and hip breadth seated anthropometric dimensions were measured of 45 subjects / respondents (35 males, 10 females) randomly selected from the field study. Mean, standard deviation, and T-test were calculated based on anthropometric data of subjects. Results revealed suggest a mismatch among the dimensions of current T-72 Russian fabricated tank motive force seat and the anthropometric dimensions of military staffs. This recommends that anthropometric information of the Ethiopian army tank drivers changed into not working in the design and manufacturing of the seats. This research is may be cautioned that tank driving force seat of T-72 tank and tank drivers anthropometric measurements are at variance. Therefore, the paper presents anthropometric statistics that may be utilized by the Russian manufacturers of tank

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Experimental investigation of productivity of machining process using double tool turning

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AIP Conference Proceedings 2022年第1期2648卷

作者： Kuba Defaru Nedi Moera Gutu Jiru G. M. Sayeed Ahmed Dasari Govardhan 1Department of Mechanical Design and Manufacturing Engineering Adama Science and Technology University ADAMA Ethiopia. P.O.Box:1888 2Program of Mechanical Design and Manufacturing Engineering School of Mechanical Chemical and Materials Engineering (SoMCME) ASTU ADAMA Ethiopia. P.O.Box:1888 3Department of Mechanical Engineering Joginpally B.R Engineering College Hyderabad TS-500075 India

Machining is a globally used manufacturing technology where some part of metal is reduced from bulk workpiece in the chip form. In this thesis work, explores the science of new techniques of machining by two single point cutting tools simultaneous engaged with workpiece material to increase efficiency of the turning operation. In order to implement double tool turning process a normal lathe machine setup was altered. In turning operation, the process factors which affect machined surface quality of component are cutting speed, feed, and depth of cut. Investigation was trailed out to the improvements of productivity by this new machining technique under the influence of metal cutting factors on cutting temperature, tool wear. The morphology of chips and machining time were also studied. A comprehensive test was examined by utilising single and double tool turning process on mild steel work material. The analytically predicted metal cutting temperatures, cutting tool wear, machining time were investigated in detail. For the selected metal cutting conditions, it was recorded that the machining time reduced by 25% surprisingly which the production with this time ranges increased. Tool wear area measured by optical Profilometer shows that total wear zone 813.11mm2 for single tool turning while it was reduced to 45.57 mm2 for double tool turning.

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Analysis and prototyping of a new variable-wheelbase bike

Analysis and prototyping of a new variable-wheelbase bike

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25th World Battery, Hybrid and Fuel Cell Electric Vehicle Symposium and Exhibition: Sustainable Mobility Revolution, EVS 2010

作者： Huang, Yu-Che Shyu, Jenq-Huey Chang, Shyue-Bin Chen, Yang-Tong Tu, Jui-Che Graduate School of Design-Doctoral Program R and D Center National Yunlin University of Science and Technology 17 37. Rd 407 Taichung Taiwan Department of Mechanical Engineering National Taipei University of Technology Zhongxiao E. Rd. Da-An District Taipei City 106 Taiwan College of Mechatronic Engine KAO YUAN UNIVERSITY No.1821 Jhongshan Rd. Lujhu Township Kaohsiung County 821 Taiwan TInstitute of Manufacturing Technology National Taipei University of Technology Zhongxiao E. Rd. Da-An District Taipei City 106 Taiwan Graduate School of Design-Doctoral Program National Yunlin University of Science and Technology Section 3. Douliu 640 Taiwan

This research is about the analysis and design of variable-wheelbase bike. Aiming to the existing folding bike of all kinds, we collect patent communiqu33; and record information to classify the documents and give ... 详细信息

This research is about the analysis and design of variable-wheelbase bike. Aiming to the existing folding bike of all kinds, we collect patent communiqué and record information to classify the documents and give analysis of its merit and defect. We find the way of innovative design from the generalizing information. Finally, we choose multiple-linkage mechanism system to change the positions of seat, handle bar and rear wheel, which can also alter the riding position and control ability of user. In order to lower the cost, we reduce the numbers of linkages. This linkages system must be one freedom . Therefore, this research is proceeding the mechanical sustainable synthesizing with this design iuput, and develops a multiple-linkages mechanism system with 8 bares, 10 joints with one freedom to be the construction of bike frame. Then, we synthesizing the dimensions of bike frame by SolidWorks,and stimulating sporting motion and interference by the 3D CAD model, later, evaluate whether the 3D dummy meets the requirements or not. It will also make the CAE to proceed the stress analysis of the bike frame construction with ANSYS11. 0 to make sure the strength and security. Finally, may be we would make a prototype.

关键词： Stress analysis

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International Journal of manufacturing Technology and Management: Editorial

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International Journal of manufacturing Technology and Management 2007年第3-4期11卷 275-277页

作者： Fang, Liping Xi, Fengfeng Zolfaghari, Saeed Department of Mechanical and Industrial Engineering Ryerson University 350 Victoria Street Toronto Ont. M5B 2K3 Canada Department of Aerospace Engineering Ryerson University 350 Victoria Street Toronto Ont. M5B 2K3 Canada Department of Mechanical and Industrial Engineering Ryerson University Toronto Ont. Canada Department of Systems Design Engineering University of Waterloo Canada International Journal of Industrial and Systems Engineering Canada Canada Canada Canada Canada Department of Aerospace Engineering Ryerson University Toronto Ont. Canada International Journal of Manufacturing Research Canada Recent Patents on Engineering Canada Society of Manufacturing Engineers Canada Industrial Engineering Program Ryerson University Toronto Ont. Canada Department of Mechanical Engineering University of Ottawa Canada Canada

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COMMERCIAL APPLICATIONS OF ADVANCED MARINE VEHICLES FOR EXPRESS SHIPPING

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NAVAL ENGINEERS JOURNAL 1983年第3期95卷 283-300页

作者： LUEDEKE, G FARNHAM, RB JR. George Luedeke Jr.: received his BS degree in Mechanical Engineering from Massachusetts Institute of Technology and his MS degree in Product Design from Illinois Institute of Technology. Early in his career Mr. Luedeke joined General Motors Corporation as a designer responsible for development of people mover and rail rapid transit systems. From 1964 to 1974 he was with Hughes Aircraft Company. At Hughes he performed analyses and developed designs for a wide variety of program and proposal efforts such as: High Speed Ground Transportation (DOT) Task Force Command Center (NAVY) Panama Canal Marine Traffic Control Center (Panama Canal Co.) Royal Iranian Navy Command Center (Iran) Tactical Information Processing and Interpretation Center (Air Force) and WALLEYE CONDOR and PHOENIX Missile Systems (NAVY). He also had marketing development responsibilities related to the diversification of Hughes resources in civil business areas such as: Automatic train control (WMATA BARTD SCRTD) water/sewage treatment plant automation (Santa Clara County) Aqueduct Control (SWR) Hydrometeorological data collection (BPA WMO) and Salton Sea basin systems analysis (Dept. of the Interior). He was responsible for combat system integration for the Hughes 2000T Surface Effect Ship (SES) proposal. He also conducted detailed studies concerning ship flexure for the Improved Point Defense Target Acquisition System Program and for the definition of operational High Energy Laser weapon installations on a series of conventional monohulls (DLG DD and CVN). Since 1974 Mr. Luedeke has been employed at RMI Inc. (formerly Rohr Marine Inc.). During this time he has held several positions. His responsibilities have included directing a number of studies on advanced SES concepts managing activities defining mission/cost effectiveness of military and commercial SES's including defining the operational benefits and enhanced survivability characteristics of cargo SES's for high speed military sealiftfor NA TO and Southeast Asia

This paper will present the results of a marketing, engineering, and economic analysis of advanced marine vehicles done by IMA Resources, Inc. and RMI, Inc., in support of a Maritime Administration project to study “Multimode Express Shipping”. The study was conducted in 1981 and examined the economic benefits of using advanced marine vehicles as express cargo vessels in domestic and international service. Commodity characteristics, desirable express carrier rates, and potential high payoff service and route alternatives were identified. Advanced marine vehicles were surveyed and sized to meet desirable deadweight and block speed objectives. The costs of operating these craft on a variety of trade routes were calculated using an advanced marine vehicle economic analysis program. Revenues, expenses, break-even, profit and loss, cash flow requirements, tax summary and economic indicators (i.e., cost/ton – mile, etc.) were projected over the expected life of the vehicles as was return on investment. Traffic density and market penetration considerations narrowed the field of choice to smaller sized advanced marine vehicle carriers (i.e., 50 and 250 ton deadweight) and to three international and five domestic routes.

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