Identification of Oil Film Coefficients of Large Journal Bearings on a Full Scale Journal Bearing Test Rig

摘要

An attempt of adding a facility of investigating dynamic characteristics of oil film to a large full scale journal bearing test rig which was designed with only the function of static measurement is implemdented. The consideration in impulse excitation, vibration measurement, data log and process and dynamic characteristics identification are presented. The measured results are compared with theoretical data and the errors are discussed as well.