It is recommended to perform review of all the plant equipment before selecting the technology to monitor vibration and detect faults. There are issues that should be considered when selecting technology such as: • Equipment reliability requirement • The importance of the measurement process •
Spectral data is displayed in the frequency domain while waveform data is in the time domain. Spectral information is obtained by applying a Fourier transform to waveform data; this converts the data to show that amplitude and phase of the vibration at different frequencies. Both
Vibration meters are handheld instruments which are connected to and receive a signal from a vibration transducer and have a capability to process data so as to give an indication of vibration parameters. They are sometimes made specifically to meet certain standard, for example, ISO
Misalignment can occur when the centerline of coupled shafts are not coincident. Misaligned shafts cause overloading and vibration in a system; this condition can be diagnosed by examining spectral data and looking for specific patterns. Two types of misalignment conditions are possible: • Parallel misalignment
Condition monitoring can be described as a process of monitoring machine condition, for example: vibration levels. Condition monitoring is a major part of predictive maintenance and is used to detect early vibration problems so that parts can be ordered and maintenance can be scheduled. Why
The source of machine failure can begin from drawing board to poor maintenance practices and machine operating conditions. Every step of how the machine is fabricated, assembled, installed, and overhauled contributes to the life of the machine. To identify potential problems of machine failure, we