2 research outputs found
Bearing Health Condition Monitoring: Frequency Domain Analysis
Condition monitoring is used to frequently monitor the parts of an engine. Since the failures are
predicted in advance, the lifetime of the machine is increased, thereby minimizing the maintenance costs. Among the
many techniques used for condition monitoring such as static, dynamics, thermal and Tribology, vibration analysis
comes under the dynamic techniques. In this paper, the frequency domain analysis, which is one of the commonly used
techniques in vibration analysis, is used for diagnosis of bearing faults. The methods used for frequency domain
analysis in this paper are Discrete Fourier Transform (DFT), Envelope Analysis and Resampling. It has been found out
that, envelope analysis gives better results than the remaining methods
Bearing Health Condition Monitoring: Time Domain Analysis
Condition Monitoring is one of the most important techniques for maintenance of a machine. This is
done in order to increase the safety and reliability of the machine. There are several types of condition monitoring for
aircraft engine bearing health monitoring such as, Oil Debris Monitoring, Temperature Monitoring, and Vibration
Monitoring. Among these, vibration monitoring is found to be the most widely used technique. The current work
focuses on the Time Domain Analysis in Vibration Monitoring of a rolling element bearing. This type of analysis
depends on several statistical features which are used to identify the defects in the bearing. The extraction of these
features is done by a method called feature extraction. It involves calculating features using the raw vibration data and also finding the features using time derivative and time integral of the vibration data. In addition to that, a Graphical User Interface (GUI) has been designed which enables the user to give input data and obtain the fault analysis and plots of time domain analysi