Advanced vibration technique for monitoring of helicopter bearings

Abstract

The paper is dedicated to rolling bearings vibration diagnostics. Main problems of currently used diagnostic methods are discussed. There is a discussion of research study and trial applications of new adaptive technique that allows high credibly assessment of technical condition of bearings and its components. It is briefly described the basic model of bearing operation and new approach to its condition evaluation using operational transfer function. There are consideration of results of research study on laboratory test bench, trial applications for diagnosis of helicopter’s bearings and other industrial aggregates. Main benefits of the adaptive technique are considered.