선박엔진의 실린더 라이너의 손상 진단을 위한 진동 분석법
Vibration Analysis for Failure Diagnosis of Cylinder Liner of Large Ship Engine
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초록
Damage to the cylinder liner of large ship engines, such as scuffing on the surface, can occur veryeasily because it is operated in a corrosive environment. This scuffing may be due to oil film destruction andcorrosive wear caused by water and sulfur included in the fuel, abrasive impurities, and poor lubricants. Thus,a method for monitoring the condition and diagnosing the failure of the cylinder liner and piston ring is needed. In this study, a reciprocating friction and wear test was carried out with a cast iron specimen, which simulatedan engine cylinder in a corrosive atmosphere. The lubricants used were base oil, stirred oil with distilled water,a NaCl solution, and dilute sulfuric acid. The friction coefficient and frequency spectrum were measured usinga load cell and acceleration sense in each experimental condition. We then used these results to diagnose the failureof the cylinder liner.
Abstract
Damage to the cylinder liner of large ship engines, such as scuffing on the surface, can occur veryeasily because it is operated in a corrosive environment. This scuffing may be due to oil film destruction andcorrosive wear caused by water and sulfur included in the fuel, abrasive impurities, and poor lubricants. Thus,a method for monitoring the condition and diagnosing the failure of the cylinder liner and piston ring is needed. In this study, a reciprocating friction and wear test was carried out with a cast iron specimen, which simulatedan engine cylinder in a corrosive atmosphere. The lubricants used were base oil, stirred oil with distilled water,a NaCl solution, and dilute sulfuric acid. The friction coefficient and frequency spectrum were measured usinga load cell and acceleration sense in each experimental condition. We then used these results to diagnose the failureof the cylinder liner.
참고문헌 (10)
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