PIPE LIFE MANAGEMENT SYSTEM RELATED WITH THREE DIMENSION DISPLACEMENT MEASUREMENT SYSTEM

摘要

The present invention relates to a pipe lifespan management system associated with a three-dimensional displacement measurement apparatus, which comprises: a thermal stress calculation unit for calculating thermal stress over a time at a predetermined point of a pipe measured by the three-dimensional displacement measurement apparatus; a mechanical stress database which includes data of the three-dimensional displacement measurement apparatus and calculates stress by a mechanical load at the measured predetermined point of the pipe; a creep data calculation unit for calculating creep data on the basis of the stress by the mechanical load; a use factor data calculation unit for calculating principal stress over a time from the stress by the thermal stress and the mechanical load and calculating cumulative use factor data over a time from the principal stress; and a pipe lifespan prediction unit for predicting a lifespan of the pipe from the cumulative use factor data and the creep data. The present invention can remarkably increase effectiveness of pipe lifespan management through accurate investigation of fatigue damage and creep damage with respect to a weakened point of the pipe, and manage a lifespan by considering the thermal stress and displacement in connection with displacement of the pipe changed by heat.