The Shock and Vibration Digest. Volume 13. Number 7

Abstract

The vibratory responses of large fan systems continues to be a problem at numerous power plants. This research study has provided further insight concerning methods of analyzing and predicting such responses. Refinement and verification of the total system dynamic analysis procedures was accomplished in the investigation. The equivalencing of experimental measurements taken on existing fan systems with theoretical response results provided one of the bases for this effort. Five large, induced-diaft fans and two smaller, primary air fans were utilized for the comparisons, good agreement being obtained in all cases.