Use of Statistical Energy Analysis for Rotating Machinery, Part III: Experimental Verification With Machine on Foundation

✍ Scribed by J.M. Cuschieri; J.C. Sun

• Publisher: Elsevier Science
• Year: 1994
• Tongue: English
• Weight: 391 KB
• Volume: 170
• Category: Article
• ISSN: 0022-460X
• DOI: 10.1006/jsvi.1994.1056

✦ Synopsis

A Statistical Energy Analysis (SEA) model of a journal bearing on an I-beam foundation is developed to predict the response of the components of the journal bearing. The SEA model consists of 16 subsystems that represent wave components in both the in-plane and out-of-plane directions. The coupling loss factors are estimated using experimentally measured mobility data at the junction locations of the subsystems. The internal loss factors of each of the substructures are measured using both a power injection method and a time decay method, with each substructure disassembled from the rest of the bearing. The mean square velocities on the surface of the bearing components, estimated using the SEA model, are compared with those directly measured. The agreement between the SEA estimated results and the experimentally measured results is good.