| 摘要 |
<P>PROBLEM TO BE SOLVED: To obtain a method and device that objectively and quantitatively determines the optimum maintenance management timing, by predicting damage, lowering of performance and timing of function stop in each equipment constituting a plant, and by collecting all of trouble events considerable accompanying them to evaluate the cost on a risk base. <P>SOLUTION: Information inspection, diagnosis, repairing and operation history of equipment constituting the plant is input to an input means 1, troubles estimated in an equipment material are tree-developed by a trouble related developing means 2, and an unreliable degree as to a first item in trouble related development is predicted in a stochastic life evaluation means 4. The unreliable degree between the respective items is calculated by a trouble function calculating means 5 based on a trouble function, the each unreliable degree is multiplied by an expense required for restoring the event to be added together according to the trouble related development, so as to calculate total estimated cost for the trouble restoration, and a preventive maintenance countermeasure expense for preventing the trouble event is comparison-judged with the total estimated cost for the trouble restoration in an operation and maintenance management determining means 8 to determine an operation and maintenance management method. <P>COPYRIGHT: (C)2004,JPO |
