Acoustic Induced Vibration (AIV) 평가 기준

Acoustic Induced Vibration (AIV) 평가 기준

- Energy Institute Guideline 2nd edition에 따른 평가

- 배관 형상, 공정 조건에 따른 LOF (Likelihood Of Failure) 값 평가 후 아래 기준치 적용

- LOF 검토 결과에 따른 후속 공정 제안

 

 

The response caused by high frequency acoustic excitation affects the pipework downstream of the source to the first major vessel, e.g. separator, KO drum.  The assessment generates a main line LOF value at each welded discontinuity, e.g. SBC, Welded Tee, Welded support. It is at the discontinuities with an LOF equal to one where corrective actions are required.  The sources of high frequency acoustic excitation are pressure reducing devices such as control / relief valves, restriction orifices, or branch connections.

[ Criteria for Acoustic Induced Vibration ]

 

 

* 출처: Guidelines for the avoidance of vibration induced fatigue failure in process pipework, 2nd edition, January 2008, Energy Institute

 

 

 

 

▷ AIV

음향 유발 진동, 배관 진동, 고유진동수, LOF, 난류 - (주)이너턴스

 

 

▷ AIV

음향 유발 진동 (Acoustic Induced Vibration, AIV)

 

 

 

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