Entity

Time filter

Source Type

Yaroslavskiy, Russia

Saakov E.S.,Atomtekhenergo Company | Ryasnyi S.I.,Atomtekhenergo Company | Kaznovskii P.S.,Atomtekhenergo Company | Kas'Yanov K.G.,Atomtekhenergo Company | Emel'Yanova A.D.,Atomtekhenergo Company
Atomic Energy | Year: 2014

Methods developed in the USA and presented in IAEA documents for seismic resistance evaluation of NPP equipment by the bounding seismic resistance method have elements in common with as well as differences from the methods established in the regulatory documents in use in our country. A particularity of the regulatory system in our country is the requirement that the dynamical characteristics of each piece of equipment must be determined experimentally and these data must be used to verify the computational models. The dynamical characteristics are determined under actual installation conditions. It is shown here that for a significant number of equipment units it is unacceptable in most cases to reject dynamical tests for determining the natural dynamical characteristics and to use instead the similarity principle as a basis for seismic resistance evaluation. © 2014 Springer Science+Business Media New York. Source


Saakov E.S.,Atomtekhenergo Company | Ryasnyi S.I.,Atomtekhenergo Company | Kaznovskii P.S.,Atomtekhenergo Company | Kas'yanov K.G.,Atomtekhenergo Company | Zaikin I.I.,Atomtekhenergo Company
Atomic Energy | Year: 2016

The conditions for using the SMA method based on foreign databases on seismic classification are examined. In contrast to the initial SMA methodology a modified approach does not presume rejection of computationalexperimental evaluation of seismic safety under real conditions. However, the methodology presented examines the possibility of validated reduction of work, including rejection of computational-experimental checking when using the domestic database now under development. Evaluations of the seismic safety margin are used in the validation of service life extension for NPP, reexamination of safety, and probability analysis of safety as well as in establishing the technical specifications for equipment, modernization and reconstruction, and improving safety. © 2016 Springer Science+Business Media New York Source


Saakov E.S.,Atomtekhenergo Company | Ryasnyi S.I.,Atomtekhenergo Company | Zaikin I.I.,Atomtekhenergo Company | Kas'yanov K.G.,Atomtekhenergo Company | And 3 more authors.
Atomic Energy | Year: 2015

A seismic qualification database being developed on the basis of proper experience and a large volume of results obtained in previous works (more than 5000 pieces of inspected equipment) can increase the efficacy of computational-experimental evaluation of the seismic resistance of the equipment in commissioned power-generating units at NPPs and power units with extended service-life. The set of parameters to be included in the database and the structure of the database were determined on the basis of previously developed criteria and methods of reducing the labor intensiveness of the computational-experimental evaluation of the seismic resistance of the equipment in NPPs. The database can be used to systematize and colligate the results of computational-experimental examinations and to evaluate the seismic resistance of equipment by indirect methods. © 2015 Springer Science+Business Media New York Source

Discover hidden collaborations