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Purpose <p>Decreased high-speed rotor vibration amplitude requires squeeze film dampers (SFDs). High-speed rotating shafts need improved SFDs to satisfy their strict criteria. This research investigates the impact of several parameters in the SFD process, such as shaft rotation speed, oil pressure, and oil mix %, on the amplitude of shaft vibration along the x and z axes. Simulating high-speed operation, the experimental configuration rotates the rotor shaft up to 10,500&#xa0;rpm. This rotational testing measures and analyzes shaft vibration amplitudes along the x and z axes.</p> Methods <p>The oil sample used in this study comprises a mixture of kerosene oil and crankcase oil. The kerosene oil is present at concentrations of 10–50%, while the crankcase oil is a 5W30 blend. The kinematic viscosity of the kerosene oil and the crankcase oil is 1.263&#xa0;mm<sup>2</sup>/s and 89.496&#xa0;mm<sup>2</sup>/s. The system includes a high-pressure oil delivery system capable of reaching up to 60&#xa0;bar pressure. The Taguchi method is used for experimental design, and variance analysis is used to assess the results.</p> Results <p>The oil pressure decreased vibration in the x and z axes by about 41.60% and 41.66%, respectively. Additionally, the shaft’s motion reduced the vibration by around 38.06–38.08%. The blend percentage notably influenced vibration reduction, which was approximately 16.18%. The Taguchi method posits that a relationship exists between the amplitude of vibrations and the oil pressure within the damper.</p> Conclusion <p>Supply oil pressure and rotor speed are the most critical elements for shaft vibration amplitude along the x and z axes according to the table of actions for the average value of shaft vibration. The reduction of vibration amplitude depends on mixing Newtonian fluid. ANOVA backs up similar results. These are the best numbers for the process factors to lower the shaking amplitude: speed—10,500&#xa0;rpm, oil pressure—60&#xa0;bar, and blend—10% (S5P5B1) in the x-axis; and speed—10,500&#xa0;rpm, oil pressure—60&#xa0;bar, and blend—10% (S5P5B1) in the z-axis.</p>

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Dynamic Experimental Investigation and Optimization of Flexible Rotor Vibration Control using Squeeze Film Damper

  • 期刊论文

  • 发表日期：

    2025年1月13日

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  • Ratnesh Kumar Gupta,
  • Ramesh Chandra Singh

摘要

Purpose

Decreased high-speed rotor vibration amplitude requires squeeze film dampers (SFDs). High-speed rotating shafts need improved SFDs to satisfy their strict criteria. This research investigates the impact of several parameters in the SFD process, such as shaft rotation speed, oil pressure, and oil mix %, on the amplitude of shaft vibration along the x and z axes. Simulating high-speed operation, the experimental configuration rotates the rotor shaft up to 10,500 rpm. This rotational testing measures and analyzes shaft vibration amplitudes along the x and z axes.

Methods

The oil sample used in this study comprises a mixture of kerosene oil and crankcase oil. The kerosene oil is present at concentrations of 10–50%, while the crankcase oil is a 5W30 blend. The kinematic viscosity of the kerosene oil and the crankcase oil is 1.263 mm2/s and 89.496 mm2/s. The system includes a high-pressure oil delivery system capable of reaching up to 60 bar pressure. The Taguchi method is used for experimental design, and variance analysis is used to assess the results.

Results

The oil pressure decreased vibration in the x and z axes by about 41.60% and 41.66%, respectively. Additionally, the shaft’s motion reduced the vibration by around 38.06–38.08%. The blend percentage notably influenced vibration reduction, which was approximately 16.18%. The Taguchi method posits that a relationship exists between the amplitude of vibrations and the oil pressure within the damper.

Conclusion

Supply oil pressure and rotor speed are the most critical elements for shaft vibration amplitude along the x and z axes according to the table of actions for the average value of shaft vibration. The reduction of vibration amplitude depends on mixing Newtonian fluid. ANOVA backs up similar results. These are the best numbers for the process factors to lower the shaking amplitude: speed—10,500 rpm, oil pressure—60 bar, and blend—10% (S5P5B1) in the x-axis; and speed—10,500 rpm, oil pressure—60 bar, and blend—10% (S5P5B1) in the z-axis.