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Engineering Bulletin # 03, March 2015
УДК: 621.791
Method for determining modes of jet-dynamic flushing of parts with blind holes
Engineering Education # 12, December 2013
DOI: 10.7463/1213.0646314
This work is a continuation of studies on an important issue of galvanic production that is providing water and recovery of valuable chemical compounds based on a design concept of a proposed operation module with a countercurrent movement of a fluid in a distributed flushing system. The article provides results of numerical calculations of the primary process and repeated jet-dynamic flushing of blind holes filled with liquid pollution by short liquid jets. In order to ensure an effective removal of contaminants, the method was justified for cross-feed of details relating to multi-nozzle heads.
Estimate of springing spherical lining on squeezing with fluid during calibration
Engineering Education # 10, October 2012
DOI: 10.7463/1012.0469199
The authors propose a method of creating analytical relationships to estimate springing of parts after calibration with fluid or with flexible media. The authors obtained formulas for estimation of nominal and random components of springing for facing spherical shape based on results of numerical simulations. The authors show principles of the process and give recommendations on the choice of conditions for calibration.
77-48211/398498 Regarding the study of “Manufacturing technique of composite construction of rocket-and-space machines” course
Engineering Education # 05, May 2012
The authors describe students’ acquisition of deep knowledge about structure, distinct features and trends of development of composite materials based on glass, aramid and carbonic fibers. Problems of modern design engineering and manufacturing of composite rocket-and-space machines are also considered.
77-30569/339658 Method of creation of a set of variants for item assembling based on oriented hypergraphs
Engineering Education # 02, February 2012
The article presents a method of generation of assembly variants for a multipart device. The model of the multipart device is based on oriented hypergraphs of constraints. The oriented hypergraph describes the impossibility of assembly when constructional, technological, economical causes are present. Visual interpretation of the hypergraph is proposed; examples of constructive and technological constraints for the shaped charge are described.
77-30569/260312 Method of generating design solutions for assembly of the product, using oriented hypergraphs
Engineering Education # 01, January 2012
This article deals with the discrete multistep method of assembly technology selection with finite number of selection options on each step. It’s suggested to generate the set of allowed selection options automatically with the usage of oriented hypergraphs. The hypergraph is defined with the set of vertices – parts to be assembled, and the set of edges – assembly operations. The proposed method is based on the system of constraints on allowed assembly variants in the form of oriented hypergraph, introduced by a developer, followed by generating of the full solutions set, with these constraints taken in the account.
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