Demishin S. V.
Demishin S. V.

Demishin S. V.
анд. техн. наук, зам. генерального директора


Publications

Seismic Stability of Equipment on a Single Support, Partly Embedded in the Soil
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The report considers the problems of theoretical and experimental analysis of seismic response of equipment placed on a reinforced concrete or steel support. Calculations had been accomplished on the basis of FEM. The procedure made it possible to determine the influence of dimensions of ground area which surrounded the support, soil properties and non-stationary nature of seismic input on the parameters of forced vibrations in the zone of equipment attachment. It is shown, that the amplitude of action on the equipment can considerably exceed the amplitude of seismic ground motions. On the basis of the data received the requirements on the test platform during the full-scale testing of «soil-support-equipment» system had been formulated. Practical realization of these requirements on the seismic platform USP-300 allowed in gross volume to inspect the seismic stability of a standard support on the basis of reinforced concrete strut SB115 7 under conditions of reproducing a non-stationary broadband seismic input of the magnitude 9 earthquake. The testing results had confirmed correctness of the design predicted evaluations.

Center for Complex Seismic Testing: Current Situation and Prospects of Development
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Recent advances in technology make it possible to design, produce and successfully operate the test benches for full-scale investigations of seismic stability of building structures and various equipment. Electrotechnical components hold a special place in the aggregate of critical equipment. Stable functioning of electrical networks during and after the earthquake is the factor having an impact on relative reduction of damage from the earthquake and the success of restoration work.

The report addresses issues related to the organization of full-scale seismic testing of relatively large power equipment in the ­Russian Federation. In the report there are given the basic characteristics of large test facilities which allow carrying out earthquake resistance tests. The authors contemplate the prospects of creation of specialized testing centers that allow organizing a full range of testing of power equipment in accordance with the international standards.