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Force Identification of a Rotary Compressor and Prediction of Vibration on a Pipe

공조용 압축기의 가진력 규명 및 배관 진동 예측

  • Received : 2010.08.19
  • Accepted : 2010.09.30
  • Published : 2010.10.20

Abstract

This paper deals with the process to identify the exciting forces generated from a rotary compressor. The equation of motion of a rigid compressor supported by several mounts was derived with 6 degree of freedom. The mass moment of inertia of compressor and the stiffness of rubber mounts were also identified by experiments. The exciting force at the center of mass of the compressor were estimated from the acceleration data measured at compressor shell. The piping system connected to the compressor was modeled. The acceleration of a pipe was predicted numerically by using the predicted exciting force. The numerical results showed good agreement with experimental results, which validated the identified exciting force.

Keywords

Rotary Compressor;Exciting Force;Frequency Analysis;Mass Moment of Inertia;Experimental Identification

Acknowledgement

Supported by : 한국 산업기술진흥원

References

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Cited by

  1. Prediction and Reduction of Transient Vibration of Piping System for a Rotary Compressor vol.21, pp.8, 2011, https://doi.org/10.5050/KSNVE.2011.21.8.733
  2. Field Measurement of the Center of Gravity and the Moment of Inertia of Railway Vehicles Using Vibration vol.23, pp.10, 2013, https://doi.org/10.5050/KSNVE.2013.23.10.878
  3. Selection of Fitness Function of Genetic Algorithm for Optimal Sensor Placement for Estimation of Vibration Pattern of Structures vol.25, pp.10, 2015, https://doi.org/10.5050/KSNVE.2015.25.10.677