ISSN 0021-3454 (print version)
ISSN 2500-0381 (online version)
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vol 64 / March, 2021
Article

DOI 10.17586/0021-3454-2015-58-8-659-663

UDC 004.02:621.86.06

FUNCTIONAL ANALYSIS AND SELECTION OF ENGINEERING SOLUTIONS FOR MECHANICAL SYSTEMS

V. M. Medunetskiy
ITMO University, Saint Petersburg, 197101 Russian Federation; Professor


V. V. Nikolaev
"Control Systems and Instruments", JSC, Saint Petersburg, 194021, Russian Federation; Chief Design Manager


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Abstract. The problems of comparison and selection of engineering design solutions for a mechanical system are analyzed by the example of automatic gripper for handling components of control and protection system of a nuclear reactor (cluster of fuel assembly). Based on the method of expert evaluations proposed by the authors, analysis of the existing (used in the nuclear industry) automatic gripper functioning is carried out, peculiarities and limitations of its design are revealed. A new design for automatic gripper is proposed to provide a higher level of reliability of the system in question. A comparison of two engineering solutions for evaluation of the mechanical device quality is performed. 
Keywords: methods of comparison of engineering solutions, methods of expert estimates, actuators, automatic gripper, fuel assembly cluster