A Method of the Multi-Transducer Optimizing Arrangement for Damage Detection of Machine parts

摘要

Multiple damages are often occurred simultaneity in complex machinery systems, thus there are problems of detection and separation of multiple damages in machine condition monitoring. This paper presents method of the multi-transducer optimizing arrangement and proposes define and experimental determined method of the damage detection sensitivity of machine parts. Damages of machine parts that is gear wheels, rolling bearings, bolts and so on, have been divided into tow types that is vibration source type and dynamics characteristic change type respectively. Dynamics characteristics of these damages are investigated. Available transducer mounting locations and vibration transfer path are discussed. We propose identification method of mechanical filtering properties of vibration transfer paths and appraise damage detection sensitivities of these transducer mounting locations. Finally, testing results of the multi-transducer optimizing arrangement are given.