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optimum CUTTING ANALYSIS METHOD OF MEMBRANE STRUCTURE

Transactions of Tianjin University 1995年第2期1卷 189+186-187,189页

作者：邵小方吴健生天津大学建筑设计研究院

By the optimum theory, a new cutting analytical method of the membrane structure is developed. The B-spline curve is applied to make smooth the boundary of the membrane strip. By this method, the cutting accuracy is i... 详细信息

关键词： membrane structure cutting analysis optimum theory

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THE RESEARCH ON MAINTENANCE STRATEGY OF LECTROMECHANICAL EQUIPMENTS AND PARTS

THE RESEARCH ON MAINTENANCE STRATEGY OF LECTROMECHANICAL EQU...

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2005年中国机械工程学会年会

作者： ZHENG Yanbo, ZHAO Xiaoshun, CHEN Huilian, LIU Shuxia (College of Mechanical and Electrical Engineering, Agricultural University of Hebei, Baoding, 071001)

＜正＞With the development of modern science and technology, most electromechanical equipments gather advanced technology to an organic whole, such as machinery, electron, hydraulic pressure, information technology and so on. Their complexity is far greater than the traditional machinery equipment, so higher demands on equipments maintenance should be put forward. In addition, the proportion of the maintenance cost is the largest in LCC （Life Cycle Cost） of electromechanical equipments, and increases little by little every year. So it is not suitable to economic demand to maintain the whole machinery equipment or the parts separately, therefore, in order to obtain the optimum maintenance effect, we should seek a kind of more excellent method, which can combine the above-mentioned two aspects. In this paper, with the optimizing theory, the author puts forward the whole equipments maintenance tactics, meanwhile the maintenance model of parts is set up. All parts of the whole equipment are arranged in an order through using the fuzzy decision theory in Fuzzy Mathematics, at the same time, the order of change of parts is provided, so that make the maintenance of the whole equipment and parts more economical and settle for the request of the technology. It is a kind of more economical and more practical maintenance tactic, and can obtain the optimum maintenance effect.

关键词： electromechanical equipments optimum theory fuzzy decision maintenance

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