New approach for investigation of causes of intensive damageability of important NPP equipment
The approach is based on combination and mutual supplementation of results of stress-deformed state calculation and data of on-line monitoring of actual operational loads and metal integrity in the most critical zones recorded in various operating modes of a power unit during the whole fuel campaign. First of all the presented approach is intended for investigation of the most complicated cases of operational damages and it aims at development and application of effective compensating measures oriented on excluding or mitigation of an effect of main damage factors revealed during monitoring.