منابع مشابه
investigation of gassing behavior, electric and dielectric properties of different insulating fluids.
ترانسفورماتورهای قدرت از اجزای اصلی شبکه تامین انرژی الکتریکی می باشند که عملکرد قابل اطمینان ترانسفورماتورها یکی از فاکتورهای مهم و تعیین کننده در تامین انرژی الکتریکی محسوب می شود. در نتیجه بررسی و مانیتور عملکرد ترانسفورماتورها در شبکه و همچنین عیب یابی این ترانسفورماتورها غیرقابل اجتناب و ضروری می باشد. به طور کلی عایق های مایع در صنعت فشار قوی کاربردهای متفاوتی دارند که مهمترین وظیفه آنها...
15 صفحه اولCritical behavior in spallation failure of metals
Using molecular dynamics with an accurate many-body potential, we studied the rapid expansion of Ta metal following the high compression ~50 to 100 GPa! induced by high velocity (2 to 4 km/s! impact. We find that catastrophic failure in this system coincides with a critical behavior characterized by a void distribution of the form N(v)}V, with t;2.2. This corresponds to a threshold in which per...
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This study was aimed to explain the influence of surface roughness of the drawbead on non-symmetry deep drawing cold rolled steel sheet to improve the drawability of cold rolled steel sheet. The variables used in this study included semi-circle drawbead with 3 levels of surface roughness which are 6.127 μm Ra, 0.963 μm Ra and 0.152 μm Ra and cold rolled steel sheet according to 3 grades of the ...
متن کاملParallel boundary and best neighbor searching sampling algorithm for drawbead design optimization in sheet metal forming
In the present paper, a Kriging-based metamodeling technique is used to minimize the risk of failure in a sheet metal forming process. The Krigingbased models are fitted to data that are obtained for larger experimental areas than the areas used in loworder polynomial regression metamodels. Therefore, computational time and memory requirement can be an obstacle for Kriging for data sets with ma...
متن کاملA Comparison of Different Message - Passing Paradigms
We present experimental results for parallelizing two breadth-rst search-based applications on Thinking Machine's CM-5 by using two diierent message-passing paradigms, one based on send/receive and the other based on active messages. The parallelization of these applications requires ne-grained communication. Our results show that the active messages-based implementation gives signiicant improv...
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ژورنال
عنوان ژورنال: Procedia Manufacturing
سال: 2019
ISSN: 2351-9789
DOI: 10.1016/j.promfg.2019.06.129