توجه: محتویات این صفحه به صورت خودکار پردازش شده و مقاله‌های نویسندگانی با تشابه اسمی، همگی در بخش یکسان نمایش داده می‌شوند.
۱Products Analysis for Reconfigurable Manufacturing
نویسنده(ها):
اطلاعات انتشار: اولین کنفرانس بین المللی و هفتمین کنفرانس ملی مهندسی ساخت و تولید، سال
تعداد صفحات: ۸
Reconfigurable Manufacturing Systems (RMSs) are designed to rapidly produce a variety of product types in the shortest time and at the lowest cost without sacrificing quality. The products must be grouped into families based on their operational similarities before manufacturing. Accordingly, possible alternatives of product families for the RMS configurations must be evaluated and analysed within a reconfiguration link between market and manufacturing. The product families selected for the production range will be then passed into the RMS tactical design stage for the allocation of manufacturing facilities. This paper investigates the key elements for the products analysis and develops a hierarchically structured framework for determining the product families of an RMS design. In particular, the Analytical Hierarchical Process (AHP) is developed for the evaluation of product families for transformable production and reconfigurable manufacturing. The reconfigurable AHP model is proposed to take into account both quantitative and qualitative measures of manufacturing and market criteria for the selection of the most preferred product family. The proposed AHP model is verified through an industrial case study through the parametrical analysis of criteria using the Expert Choice software [1].<\div>

۲Finite Element Modeling of Pullout Test on Geogrid Embedded in Pluviated and Compacted layer of Sand
نویسنده(ها): ،
اطلاعات انتشار: اولین کنفرانس ملی مهندسی ژئوتکنیک، سال
تعداد صفحات: ۸
Reinforcements like bars, strips, textiles and grids are used for the reinforcement of soil walls, but the useof grids type of reinforcements is still under consideration and there is still a need of study the probableuse of grids reinforcement in reinforced soil retaining walls. Pullout test is commonly used to predictactual field pullout behavior of reinforcements. In this paper, pullout test modeled with geogridreinforcements embedded sand, clay and clay with thin layers of sand, under five different normalpressures of 5,25,50,75 kPa and 100 kPa. Finite element method (Plaxis V8) is used to compare thepullout behavior results. Normal pressures modeled and an optimum sand layer thickness wasdetermined. Effect of sand layers combined with the geogrid reinforcement increased with increasing innormal pressures. The improvement was more pronounced at higher normal pressures. Test resultsindicate that provision of thin layers of sand on both sides of the geogrid is very effective in improving thepullout strength<\div>
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