Course

The Analysis of Orbit and Shaft Center line Plot

introduction As you are aware, measuring vibration data from a shaft is feasible in multiple ways: 1- Measuring shaft relative vibration 2- Measuring shaft absolute vibration 3- Measuring bearing absolute vibration In ordinary vibration measurements from machinery, absolute data is collected from bearing housing. This is acceptable when the distance from casing to bearing is…

Acoustic Emission Course

Introduction Acoustic emission is a phenomenon which happens due to creating and propagation of an elastic wave in ultrasonic range. Although acoustic emission is an ancient technique, it is not widely used in industries. This technique can effectively help us for early detection of faults specially in roller element bearings. Acoustic emission wave can be…