DOI: https://doi.org/10.20535/2521-1943.2020.0.210104

Operability Study of Overhung Pump Being Under Special Dynamic Loads

Andrei Rudenko, Vyacheslav Khvorost

Abstract


One important part during designing of pumping equipment for nuclear power plants is to ensure pumping equipment operability and stiffness under extreme dynamic loads of natural and anthropogenic nature. One of the most dangerous and intensive natural sources is seismic load, and the most dangerous anthropogenic impact are considered to be air shock wave (ASW) and aircraft crush (AC) on the enclosures of the reactor building. At the present time mathematic models and methods for calculation of NPP equipment operability under special dynamic loads (SDL) are applied to define stress-strain state of the design in whole, to assess local deformation in zones having the highest level of equivalent stresses and for studying the design state in other extreme conditions affecting the safety of NPP. Calculation estimation of the design dynamic response to external loads of natural and anthropogenic nature is necessary to avoid wrong decision solutions at the design stage and manufacturing of new equipment.


Keywords


centrifugal overhung pump, operability, stiffness, temperature field, displacement field, thermoelasticity, response spectrum, natural frequency, vibration mode, reduced stresses, annular gap

References


A.N. Birbraer and A.Yu. Roleder, Ekstremalnye vozdeystviya na sooruzheniya [Extreme Actions on Structures], Publisher of Polytechnic University, St.Petersburg, 2009.

A.N. Birbraer, A.J. Roleder and S.B. Arhipov, “Probabilistic Assessment of NPP Building Vibrations Caused by Aircraft Impact”, Paper No.1645, Trans. 16-th International Conference on Structural Mechanics in Reactor Technology (SMiRT16), Washington DC, 2001.

Ye.V. Afromeev et al., “Matematicheskoe modelirovanie oborudovaniya sistemy upravleniya i zashchity AES i ego ispytaniya na vozdejstviya ot udara samoleta i vozdushnoj volny” [Mathematical Modeling of NPP Control and Protection System Equipment and Its Testing for Impacts from Aircraft Crash and Air Wave], Electromechan Problems. Proceedings of VNIIEM, vol. 129, No. 4, pp. 49–54, 2012. DOI: https://doi.org/10.1093/itnow/bws116

V.G. Bazhenov et al., “Chislenny analiz deformirovaniya zaglublennykh truboprovodov sistemy okhlazhdeniya atomnykh stanciy pri padenii samoleta” [Numerical Analysis of Buried Pipelines Deformation of Cooling System of Nuclear Power Plants during an Aircraft Crash], Vestnik of Lobachevsky University of Nizhni Novgorod, No.1–3, pp. 70–76, 2013.

A.N. Birbraer and S.G. Shulman, Prochnost i nadezhnost konstruktsiy AES pri osobyih dinamicheskih vozdeystviyah [Strength and Reliability of NPP Designs Under Special Dynamic Loads], Energoatomizdat, Moscow, Russia, 1989, p. 304.

PNAE G-7-002-86. Normyi rascheta na prochnost oborudovaniya i truboprovodov atomnyih energeticheskih ustanovok [Strength Analysis Standards for Nuclear Power Unit Equipment and Pipelines], Gosatomenergonadzor SSSR, Energoatomizdat, Moscow, Russia, 1989, p. 525.

NP-031-01. Normyi proektirovaniya seysmostoykih atomnyih stantsiy [Design Norms of Earthquakeproof Nuclear Power Plants], Moscow, Russia, 2001, p. 59.

A.D. Emelyanova, et al., Ob ob’eme i sostave raschetno-eksperimentalnyih obsledovaniy seysmostoykosti oborudovaniya AES [Volume and Composition of Design and Experimental Surveys of Seismic Stability of NPP Equipment], Elektricheskie stantsii, No.1, Energoprogress, 2014.

A.N. Birbraer and Yu.V. Sazonova, “Vklad vysshikh mod v dinamicheskiy otklik konstruktsiy na vysokochastotnye vozdejstviya” [Contribution of Higher Modes to Dynamic Response of Structures to High-Frequency], Structural Mechanics and Analysis of Constructions, No. 6, 2009, pp. 22–27.

N.A. Chernukha, V.V. Lalin and A.N. Birbraer, “Veroyatnostnoe obosnovanie dinamicheskikh nagruzok na oborudovanie AES pri udare samoleta” [Probability Basis of Dynamic Loads on NPP Equipment during an Aircraft Crash], Scientific and technical journal of Peter the Great St.Petersburg Polytechnic University. Natural and Engineering Science, vol. 23, No. 4, 2017, pp.159–171. DOI: 10.18721/JEST.230416

ANSYS 14.5, license agreement 673888.

NP-068-05, Truboprovodnaya armatura dlya atomnyih stantsiy. Obschie tehnicheskie trebovaniya NTTs YaRB [NPP Pipeline Fittings. General Technical Requirements], Moscow, Russia, 2005.

O.V. Orel et al., “Issledovanie rabotosposobnosti nasosa konsolnogo tipa s uchetom temperaturnogo nagruzheniya” [A Study of the Performance of a Overhung Pump with Taking into Account Temperature Loading], ISSN 2521-1943. Mechanics and Advanced Technologies, #2 (83), KPI, Kiev, 2018. DOI: https://doi.org/10.20535/2521-1943.2018.83.129004

Michael Singer, Torsten Johne, “Design of Pump Casings: Guidelines for a Systematic Evaluation of Centrifugal Pump Pressure Boundary Failure Modes and their Mechanisms”, Proceedings of the Twenty-Ninth International Pump Users Symposium,

October 1–3, 2013, Houston, Texas, 2013.


GOST Style Citations


[1]         A.N. Birbraer and A.Yu. Roleder, Ekstremalnye vozdeystviya na sooruzheniya [Extreme Actions on Structures], Publisher of Polytechnic University, St.Petersburg, 2009.

[2]         A.N. Birbraer, A.J. Roleder and S.B. Arhipov, “Probabilistic Assessment of NPP Building Vibrations Caused by Aircraft Impact”, Paper No.1645, Trans. 16-th International Conference on Structural Mechanics in Reactor Technology (SMiRT16), Washington DC, 2001.

[3]         Ye.V. Afromeev et al., “Matematicheskoe modelirovanie oborudovaniya sistemy upravleniya i zashchity AES i ego ispytaniya na vozdejstviya ot udara samoleta i vozdushnoj volny” [Mathematical Modeling of NPP Control and Protection System Equipment and Its Testing for Impacts from Aircraft Crash and Air Wave], Electromechan Problems. Proceedings of VNIIEM, vol. 129, No. 4, pp. 49–54, 2012. DOI: https://doi.org/10.1093/itnow/bws116

[4]         V.G. Bazhenov et al., “Chislenny analiz deformirovaniya zaglublennykh truboprovodov sistemy okhlazhdeniya atomnykh stanciy pri padenii samoleta” [Numerical Analysis of Buried Pipelines Deformation of Cooling System of Nuclear Power Plants during an Aircraft Crash], Vestnik of Lobachevsky University of Nizhni Novgorod, No.1–3, pp. 70–76, 2013.

[5]         A.N. Birbraer and S.G. Shulman, Prochnost i nadezhnost konstruktsiy AES pri osobyih dinamicheskih vozdeystviyah [Strength and Reliability of NPP Designs Under Special Dynamic Loads], Energoatomizdat, Moscow, Russia, 1989, p. 304.

[6]         PNAE G-7-002-86. Normyi rascheta na prochnost oborudovaniya i truboprovodov atomnyih energeticheskih ustanovok [Strength Analysis Standards for Nuclear Power Unit Equipment and Pipelines], Gosatomenergonadzor SSSR, Energoatomizdat, Moscow, Russia, 1989, p. 525.

[7]         NP-031-01. Normyi proektirovaniya seysmostoykih atomnyih stantsiy [Design Norms of Earthquakeproof Nuclear Power Plants], Moscow, Russia, 2001, p. 59.

[8]         A.D. Emelyanova, et al., Ob ob’eme i sostave raschetno-eksperimentalnyih obsledovaniy seysmostoykosti oborudovaniya AES [Volume and Composition of Design and Experimental Surveys of Seismic Stability of NPP Equipment], Elektricheskie stantsii, No.1, Energoprogress, 2014.

[9]         A.N. Birbraer and Yu.V. Sazonova, “Vklad vysshikh mod v dinamicheskiy otklik konstruktsiy na vysokochastotnye vozdejstviya” [Contribution of Higher Modes to Dynamic Response of Structures to High-Frequency], Structural Mechanics and Analysis of Constructions, No. 6, 2009, pp. 22–27.

[10]      N.A. Chernukha, V.V. Lalin and A.N. Birbraer, “Veroyatnostnoe obosnovanie dinamicheskikh nagruzok na oborudovanie AES pri udare samoleta” [Probability Basis of Dynamic Loads on NPP Equipment during an Aircraft Crash], Scientific and technical journal of Peter the Great St.Petersburg Polytechnic University. Natural and Engineering Science, vol. 23, No. 4, 2017, pp.159–171. DOI: 10.18721/JEST.230416

[11]      ANSYS 14.5, license agreement 673888.

[12]      NP-068-05, Truboprovodnaya armatura dlya atomnyih stantsiy. Obschie tehnicheskie trebovaniya NTTs YaRB [NPP Pipeline Fittings. General Technical Requirements], Moscow, Russia, 2005.

[13]      O.V. Orel  et al., “Issledovanie rabotosposobnosti nasosa konsolnogo tipa s uchetom temperaturnogo nagruzheniya” [A Study of the Performance of a Overhung Pump with Taking into Account Temperature Loading], ISSN 2521-1943. Mechanics and Advanced Technologies, #2 (83), KPI, Kiev, 2018. DOI: https://doi.org/10.20535/2521-1943.2018.83.129004

[14]      Michael Singer, Torsten Johne, “Design of Pump Casings: Guidelines for a Systematic Evaluation of Centrifugal Pump Pressure Boundary Failure Modes and their Mechanisms”, Proceedings of the Twenty-Ninth International Pump Users Symposium,
October 1–3, 2013, Houston, Texas, 2013.

 





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