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Topic: Achieve minimal levels of residual imbalance , Post by: EQiblyDuage, EQiblyDuage on 12/11/2024 10:25:20 PM
Achieve minimal levels of residual imbalance [Reply] By: EQiblyDuage, EQiblyDuage on 12/11/2024 10:25:20 PM
    

Detailed Rotor Balancing Process



Equipment Preparation



  • accelerometers, laser rpm sensor, mounting stand, software application, and additional tools.

  • Establish a USB connection between the instrument and the computer, ensuring the software is set up properly.



Mounting the Sensors



  • Fix the accelerometers securely to the machine's structure in locations where vibrations are most prominent, ideally near the bearings.

  • Aim the optical rpm sensor at the rotating shaft and apply a reflective strip to the shaft for phase angle data acquisition.



Starting the Program



  • Open the Balanset application on your PC.

  • Select the appropriate balancing mode: single-plane or two-plane, depending on the rotor type and your specific requirements.





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  • Operate the rotor at its intended working speed.

  • The program will record the vibration amplitude, rpm, and phase, providing a baseline measurement of the existing imbalance.



Mounting the Test Weight



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  • Stop the rotor and attach a trial weight at a specific location on the rotor. The weight's mass can be specified within the software (e.g., in grams).

  • Run the rotor again, allowing the software to measure the effects of the trial weight on vibration and phase.



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Determining the Corrective Mass



  • The software uses the measured values to automatically compute the necessary compensating weight's magnitude and placement angle.

  • The results of the calculation are shown both numerically and visually through charts and graphs.



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Mounting the Compensating Weight



  • Attach the computed compensating weight to the rotor as indicated by the software's output.

  • You can conduct interim measurements to confirm that the imbalance is decreasing as expected.



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Validation and Conclusion of the Balancing Process



  • With the compensating weight attached, operate the rotor and assess the level of any residual vibration.

  • The balancing procedure is finished if the remaining vibration is within the permissible limits specified in ISO 1940.

  • Should the vibration still be excessive, repeat the balancing steps, making further adjustments to the corrective weight as needed.



Generating a Documentation of the Balancing Results



  • All balancing results are logged and archived within the software, from which you can produce a printable report summarizing the vibration levels, compensating weight, and its installation position.



Concluding Steps and Verification



  • Verify the secure attachment of all balancing weights and measurement sensors.

  • Ensure the rotor rotates smoothly and without excessive noise.

  • In cases where the rotor is integrated into a more complex system, ensure the correct operation and interaction of all related components.



Following this procedure enables accurate balancing, minimizes vibration, and prolongs the service life of the equipment.






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