Analytical, Experimental and Numerical Investigation of Effect of Bearing Parameters on Critical Speed of Rotating Shaft.

  • Unique Paper ID: 173074
  • PageNo: 2082-2089
  • Abstract:
  • A shaft always pass through one or more critical speed as it accelerates or decelerates. While operating at critical speed shaft vibrates at large amplitude which can cause damage. As at critical speed resonance occur, shaft must be designed to pass quickly through this critical speed. Different bearing parameters leads to different bearing stiffness. Therefore, it is necessary to analyze the effect of bearing and its parameters on the critical speed of the shaft. This paper incorporates experimental investigation of effect of different bearing parameters on critical speed of a rotating shaft-disk system. The experimental setup has been developed to study effect of bearing parameters. The study involves determination of natural frequency analytically and experimentally followed by modal analysis in ANSYS APDL. Experimental analysis has been carried out to determine the actual critical speed of shaft with the help of state-of-the-art four channel Adash VA4 Pro FFT analyzer platform along with data acquisition system and electronic instrumentation. Modal analysis in ANSYS APDL has been carried out with two approaches.

Copyright & License

Copyright © 2026 Authors retain the copyright of this article. This article is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

BibTeX

@article{173074,
        author = {Asst. Prof. A. R. Koli and Asst. Prof. A. M. Patil and Asst. Prof. S. S. Patil and Asst. Prof. V. V. Patil and Asst. Prof. R. S. Mithari},
        title = {Analytical, Experimental and Numerical Investigation of Effect of Bearing Parameters on Critical Speed of Rotating Shaft.},
        journal = {International Journal of Innovative Research in Technology},
        year = {2025},
        volume = {11},
        number = {9},
        pages = {2082-2089},
        issn = {2349-6002},
        url = {https://ijirt.org/article?manuscript=173074},
        abstract = {A shaft always pass through one or more critical speed as it accelerates or decelerates. While operating at critical speed shaft vibrates at large amplitude which can cause damage. As at critical speed resonance occur, shaft must be designed to pass quickly through this critical speed. Different bearing parameters leads to different bearing stiffness. Therefore, it is necessary to analyze the effect of bearing and its parameters on the critical speed of the shaft. This paper incorporates experimental investigation of effect of different bearing parameters on critical speed of a rotating shaft-disk system. The experimental setup has been developed to study effect of bearing parameters. The study involves determination of natural frequency analytically and experimentally followed by modal analysis in ANSYS APDL. Experimental analysis has been carried out to determine the actual critical speed of shaft with the help of state-of-the-art four channel Adash VA4 Pro FFT analyzer platform along with data acquisition system and electronic instrumentation. Modal analysis in ANSYS APDL has been carried out with two approaches.},
        keywords = {Critical speed, Universal Testing Machine, Stiffness, FFT analyzer, ANSYS APDL.},
        month = {February},
        }

Cite This Article

Koli, A. P. A. R., & Patil, A. P. A. M., & Patil, A. P. S. S., & Patil, A. P. V. V., & Mithari, A. P. R. S. (2025). Analytical, Experimental and Numerical Investigation of Effect of Bearing Parameters on Critical Speed of Rotating Shaft.. International Journal of Innovative Research in Technology (IJIRT), 11(9), 2082–2089.

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