المجلة الدولية للعلوم والتقنية

Mechanical vibrations are oscillating motion that occurs during the operation of rotating equipment (pumps, compressors, steam and gas turbines, etc.) and its components (bearings, shafts, gears, etc.), bears, belts and other elements that make up the rotating mechanical and electrical systems. The application of vibration analysis and its impact on rotating mechanical equipment or during its maintenance operations aims to detect and identify faults in it so that they can be repaired before their exacerbation. If vibration is not detected, it may cause unforeseen malfunctions with an unlimited time period and lead to an increase in the maintenance cost or loss of the machine. Among the most important applications and analysis of vibration of a rotating machine is the detection of misalignment of the shaft of the machines and their imbalance, which may cause these matters to damage or deteriorate the rotor shaft and the axes of its bearings and then the machine itself. In this paper, the concept of mechanical vibration, methods of modeling it and its negative impact on rotating equipment, and methods of treating these negative effects are dealt with so that the rotating equipment works smoothly without vibration and technical problems. Finally, it is necessary to pay attention to the topic of mechanical vibrations due to their significant negative impact on the performance of rotating equipment (centrifugal pumps, gas, steam, wind turbines, etc.), which lead to shortening the expected service life of the components of rotating equipment. But the process of regular maintenance of the equipment is considered a very important process because it leads to the detection of faults and defects that cause the generation of vibration and repair before it becomes a major problem, which leads to prolonging and maintaining the operational life of the rotating equipment and reducing the expenses of operation and maintenance.