Vibration diagnostics includes vibrations of machines, shafts and bearings and is used to detect and diagnose faults in the functioning of the system. This paper will focus on the vibrations of the bearing in order to diagnose any anomalies that may be present.
The analysis of vibration of bearings is based on the evaluation of parameters such as bearing vibration frequency, vibration amplitude, and energy signals. These parameters are then used to determine the type of fault that is present and the severity of it. Bearing failures can occur due to worn and degraded components, corrosion, impact or misalignment, and other causes.
The vibration of the bearings can be detected by a vibration sensor and then analyzed by a frequency analyzer. The frequency analyzer measures the frequency components of the vibration over a range of time and then compares it to the standard frequency range of the bearing. The vibration amplitude is then measured to determine the severity of the fault.
When bearings are operating correctly, their frequency range remains within the allowable range. However, if the frequency is outside the range, it could indicate a fault in the bearing. This could indicate worn or damaged components, misalignment, or corrosion. If the vibration amplitude is significantly higher than that of the standard bearing, then a more serious issue is indicated, such as a bearing seizure.
The bearing vibration frequency and amplitude can also be used to detect potential bearing problems in the early stages, before they have become severe enough to cause bearing failure. By monitoring the frequency and amplitude of the vibration, anomalies can be identified and addressed before they become more serious.
The energy signals of vibrations can also be used to analyze the bearing’s condition. Waveforms taken from the vibration sensors can be used to detect fatigue, wear and tear, and corrosion. The energy signals can also be used to indicate if the bearing is lubricated properly, if the lubrication is contaminated, or if the bearing itself is damaged.
The vibration of bearings is an important diagnostic tool that can be used to detect faults in the system. By monitoring the frequency, amplitude, and energy signals of the bearing vibration, potential issues can be identified and addressed before they become more serious or lead to bearing failure.
