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2 Zeszyty Naukowe Politechniki Świętokrzyskiej. Nauki Techniczne

2 2008

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Vybor racional'nyh uklonov poverhnostej styka nasosov s gorizontal'nym raz''emom

Pirogov O., Lvov G., Ovcharenko V., Lysenko S., Kostromickaya O.

Zeszyty Naukowe Politechniki Świętokrzyskiej. Nauki Techniczne

2008

Z. 10, Vol. 1

307-314

During exploitation of pumps quite often the partial opening of joint is happened between a bonnet and sealing gasket. The technique of definition of the rational form of a surface of a socket of the pump is offered on the basis of alternative finite element analysis. The degree of disclosing of a joint is determined by results of the solving of a contact problem for the modified model of a bonnet and a sealing gasket. It is shown, that for a variant with an inclined surface of a socket, the zone of dense contact of a bonnet and a sealing gasket increases. The series of automated calculations for contact problem in finite-element definition is executed in the work. The rational corners of slopes for the bonnet joint surface are determined by the results of calculations. In this case opening of joint between the bonnet and gasket is minimum.

NDS rabocego kolesa GCN AES s ucetom tehnologiceskih defektov

Pirogov O., Kedrovskaya O.

Zeszyty Naukowe Politechniki Świętokrzyskiej. Nauki Techniczne

2008

Z. 10, Vol. 1

271-278

A rotor wheel is one of important knots of circulation pump and, in spite of rigorisms at making, the grounded comparison of results of calculations of the tensely-deformed state and experimental information is required for providing of high reliability of construction. For realization of this problem a calculation model designing the defect of welding stitches between shoulder-blades and basic and covering disks as the gap of similar to the crack is offered. This model in future will be used for estimation of reliability construction and extension of resource of driving wheel.