Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
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Study of Wear Characteristics of Hydraulic Equipment Used in Power Plants

발전소용 유압기기의 마모특성 연구

  • Lee, Yong Bum (Reliability Assessment Center, Korea Institute of Machinery and Materials) ;
  • Lee, Gi Chun (Reliability Assessment Center, Korea Institute of Machinery and Materials) ;
  • Chang, Mu Seong (Reliability Assessment Center, Korea Institute of Machinery and Materials)
  • 이용범 (한국기계연구원 신뢰성평가센터) ;
  • 이기천 (한국기계연구원 신뢰성평가센터) ;
  • 장무성 (한국기계연구원 신뢰성평가센터)
  • Received : 2013.04.12
  • Accepted : 2013.07.02
  • Published : 2013.09.01
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Abstract

The reliability of hydraulic equipment used in power plants is especially important because failures that occur in the power plant can have a great ripple effect on human lives and financial losses. In this study, specimens using the materials used in the spool and sleeve of hydraulic valves of power plants have been produced, heat-treated, and tested under the precipitation conditions of phosphate ester hydraulic fluid with a variety of conditions. 23 full factorial designs have been applied to evaluate the significance of factors that affect the wear loss of the specimen, specifically, the load, velocity, and temperature. The significance evaluation was performed on the main effects and two-way interactions for wear loss based on the experiment results, and the mathematical equations between the wear loss and the three factors were derived from the analysis results.

발전소에서 발생하는 고장은 인명 및 재정적 손실에 대한 파급효과는 매우 크므로 발전소에 사용되는 유압기기의 신뢰성은 특히 중요하다. 본 연구에서는 발전소용 유압밸브의 스풀과 슬리브 재질을 사용하여 시편을 제작, 열처리한 후 인산에스테르계열 유압작동유 침전상태에서 다양한 조건에서 실험한다. 시편의 마모량에 영향을 주는 인자들의 유의성을 평가하기 위해 $2^3$ 완전 요인 실험계획법을 적용하였으며, 고려된 인자들은 하중, 속도, 온도이다. 실험결과로부터 마모량에 대한 주효과 및 2 인자 교호작용에 대한 유의성 평가를 실시한 후 마모량과 인자들간의 수학적 모형을 도출하고자 한다.

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References

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