Research On Large Sets Bearing Load Abnormity Diagnosis And Its Internet Call Mathods

In this paper, dynamic characteristics of Turbine-Generator rotor system were analyzed. The matrix equation of bearing load distribution in large turbo-generator sets were educed using a transfer matrix method. Its solving methods were introduced by examples. The equation may be used for calculating bearing loads. The equation can solve bearing load distribution in multi-support rotor-bearing system by generalizing. 200MW generator set, 300MW generator set and 600MW generator set were analyzed and computed. The results indicate that the values of numerical calculation have a good agreement with known performances. The calculating methods in load sensitivity and elevation sensitivity were discussed. Load sensitivity matrix and elevation sensitivity matrix were educed. The equation can solve bearing load sensitivity and elevation sensitivity in multi-support rotor-bearing system by generalizing. The results of utilizing these equations to analyze bearing loads agree with known performances. The codes were programmed to calculate bearing load and bearing load sensitivity. The thoughts and methods of acquiring remote distributed knowledge based on network are elucidated. Remote procedure calls based on the Internet were realized. Load test set in multi-support rotor-bearing system was developed, and bearing load tests in multi-support rotor-bearing system were given. The test results showed, that the test method accorded with the requests in engineering tests, that bearing vertical and horizontal loads can be tested in real-time. Loads for every bearing, rotary speed, bearing saddle vibration, shaft vibration, orbit of shaft center, were measured. Severely rubbing fault was diagnosed by comprehensively analyzing these signals. The diagnosis results have a good agreement with situation.