Dynamic Response Analysis of the Rotor Using the Jeffcott Method and Performance Improvement Using Active Magnetic Bearing | ||
| Engineering and Technology Journal | ||
| Article 9, Volume 41, Issue 1, January 2023, Pages 96-109 PDF (2.44 M) | ||
| Document Type: Research Paper | ||
| DOI: 10.30684/etj.2022.133607.1196 | ||
| Authors | ||
| Karrar B. Tuaib* 1; Qasim A. Atiyah2; Imad A. Abdulsahib3 | ||
| 1Mechanical Engineering Department, University of Technology, Baghdad, Iraq. | ||
| 2University of Technology, Assina'a Street, Baghdad, Iraq, | ||
| 3Mechanical Engineering Department, University of Technology, Baghdad, Iraq | ||
| Abstract | ||
| The most common component of mechanical systems today is rotating machines. In these systems, vibration is caused by rotating components. As a result, to decrease the amplitude of vibrations created by rotating equipment, it’s required to understand the behavior of the system. In this work, the problem of vibrations in conventional bearing systems and the effect of adding active magnetic bearings to rotating machines to reduce the amplitude of vibrations are discussed. In this paper, the vibrations in the rotary bearing system were studied theoretically and analytically by using simulation programs to calculate the natural frequencies and parameters affecting the performance. In the theoretical part, the shaft of the rotating bearing was analyzed by the Jeffcott method depending on several parameters changed with the frequency value to observe the amplitude of the vibrations in the shaft. In an analytical aspect by simulation, a representative model of active magnetic bearings was built using the COMSOL 2020 program, and the effect of adding these bearings on capacitance, vibration reduction, and frequency behavior was examined. SolidWorks 2018 software was used to analyze the magnetic field and its distribution in the magnetic bearing coil. The results indicate that when magnetic active bearings were introduced to the rotating bearing shafts, the vibration amplitude was reduced by approximately 60%. From this work, it can be concluded that the system becomes more stable when the active magnetic bearing is added to the rotating bearing shaft, giving it a more stable and firm nature. | ||
Highlights | ||
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| Keywords | ||
| Vibrations,,; ,،,؛Rotating-Bearing System,,; ,،,؛Jeffcott method,,; ,،,؛Magnetic bearing,,; ,،,؛Active magnetic bearing (AMB) | ||
| References | ||
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