Transactions of the Korean Society for Noise and Vibration Engineering (한국소음진동공학회논문집)

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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Balancing Technic Based on Rotor Dynamics Analysis of Test Rig

Test Rig 동특성 분석에 따른 밸런싱 기술 적용

  • Hwang, Dukyoung (R&D Division, Hyundai Engineering & Construction Company) ;
  • Jung, Chonwoo (Rotating Machinery Team, Hyundai Engineering Company) ;
  • Park, Insun (R&D Division, Hyundai Engineering & Construction Company) ;
  • Shin, Dongmin (R&D Division, Hyundai Engineering & Construction Company) ;
  • Song, Jinseok (Rotating Machinery Team, Hyundai Engineering Company)
  • Received : 2016.12.07
  • Accepted : 2017.02.22
  • Published : 2017.04.20
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Abstract

The rotor dynamics and balancing technic for rotating equipment during engineering and manufacture stage are to be carefully considered in order to minimize the operation troubles regarding vibration during commissioning stage. In this paper, the test rig, which includes the disks as balancing plane, is designed and manufactured, so that the characteristic of rotor dynamics can be analyzed such as critical speed and mode shape. The critical speed predicted through natural frequency analysis is verified by the actual measurement on bearing housing vibration during start-up condition of test rig. The low speed balancing and the operating speed balancing test are performed respectively with consideration of first critical speed, and the residual unbalance amounts are estimated in accordance with the relevant method described in API standard. In addition, the single and dual plane balancing are carried out on main disk and trim disk depended on phase information at each balancing step.

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References

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