T. Tanaka et al., THE DEVELOPMENT OF A DIAGNOSTIC AND MONITORING-SYSTEM FOR VIBRATING PIPE BRANCHES, Nuclear Engineering and Design, 147(3), 1994, pp. 455-461
This paper deals with a diagnostic and monitoring system for assessing
the integrity of pipe branches, during the operation of the nuclear p
ower plant. This system have been developed under the concept of ''eas
y to use without any sophisticated analysis'' and ''portable''. The ac
curacy of the diagnosis is based on the model optimization subsystem,
which automatically modifies the numerical vibration model so as to fi
t its natural frequency to the actual natural frequency. The informati
on obtained by this system may be reflected to a maintenance program o
f the plant to assure more reliable operation of the plant.