Acoustical Monitoring of the Stress-Strain State of Welded Connections of a Rotor Frame During Upgrade of the Hydroelectric Unit of the Nizhnekamsk Hydroelectric Power Station


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Abstract

Results are presented for research by an acoustic method, of residual stresses and the plastic strains that occurred in a spoke of a rotor frame of the main generator after welding reinforcing plates (additional ribs for rigidity) during upgrade work on the hydroelectric unit of the Nizhnekamsk hydroelectric power station.

About the authors

A. L. Rudenko

Volga-SGEM LLC —Kamspetsénergo

Author for correspondence.
Email: imndt31@mts-nn.ru
Russian Federation, Nizhnii Novgorod

V. V. Mishakin

Institute of Problems of Mechanical Engineering of the Russian Academy of Sciences

Email: imndt31@mts-nn.ru
Russian Federation, Moscow

K. V. Kurashkin

Institute of Problems of Mechanical Engineering of the Russian Academy of Sciences

Email: imndt31@mts-nn.ru
Russian Federation, Moscow

A. V. Gonchar

Institute of Problems of Mechanical Engineering of the Russian Academy of Sciences

Email: imndt31@mts-nn.ru
Russian Federation, Moscow

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