introduction Gears are of the most common power transmitter in industries. Due to the issues which may be resulted from shocks and stresses in gearboxes, these equipment are exposed to special failures. In some cases too many gears are used in a gearbox which cannot be diagnosed easily. A vibration analyst needs to know about…
introduction Bearings are parts of equipment through which all produced forces in machinery passed. Therefore bearings are the first parts in machinery that are exposed to failures. Theoretically, a bearing has a life time of 100 years but practically this period reduced to 10 years in the best condition. To achieve this period, it’s necessary…
introduction Unbalanced rotor is one of the main reasons of vibration in rotating machinery. In order to achieve the minimum amplitude of vibration, the amount of unbalance weight should approaches to the minimum. Balancing is one of those activities which has to be done on the rotor or any other rotary parts before the assembly…
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…
Vibration analysis level 1 & 2 held on 17th, 18th and 18th May 2014 in Gol Gohar Mineral Complex.
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…
“Vibration analysis and sound analysis application in diagnostic and condition monitoring of rotating machines “workshop held on 28th April 2014 in the the Kashan University. Which representatives of kashan amirkabir steel company, Foolad Kavir company, Kashan Saipa, Ardestan cement company, Natanz Jahan Saderat, Dorin Kashan company and also professors and studentsattended.