METHOD AND APPARATUS FOR DIAGNOSING ANOMALY OF ROTATOR

摘要

PROBLEM TO BE SOLVED: To provide an anomaly diagnosing apparatus capable of preventing erroneous diagnosis and highly accurately diagnosing anomalies. SOLUTION: The anomaly diagnosing method for diagnosing anomalies of machine facilities including one or a plurality of sliding members comprises a step for detecting wave motion which occurs from the machine facilities; a step for computing the frequency spectrum of the wave motion; a first computation step for computing the root mean square of one degree component band of the frequency spectrum or its partial overall root mean square and the root mean square of the overall bands of the frequency spectrum or a normalized value, an overall root mean square; a second computation step for computing a quotient acquired by dividing the root mean square of one degree component band or the partial overall root mean square by the normalized value or a differential value; a step for comparing and collating the quotient or the differential value with a prescribed constant; and a step for diagnosing anomalies of the machine facilities on the basis of the result of the comparison and collation. COPYRIGHT: (C)2004,JPO