드릴쉽 디젤엔진 발전기의 진동에 관한 연구
Study on the Vibration of Diesel Engine Generator of Drill Ship
0
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
To obtain high power, diesel engines continuously increase combustion pressure and mean effective pressure each cylinder, and the excitation sources and noisy sources are increased, too. Moreover, to reduce the costs, shipyards make hull structures weaker than before. As above reasons, it is more difficult to control the vibration phenomenon nowadays. In this study, it was investigated why diesel generator sets reached the vibration allowable limits during the FAT and heavy vibration phenomenon of diesel generator sets using ODS test during onboard tests. Also, it is found out the stiffness of deck and common bed using the test result of their structural impedance. To find out the vibratory characteristics of diesel generator sets, model tests were carried out. From the sensitivity analysis after above tests, it was selected points to be reinforced and studied troubleshooting to solve heavy vibration phenomenon of diesel generator sets.
Abstract
To obtain high power, diesel engines continuously increase combustion pressure and mean effective pressure each cylinder, and the excitation sources and noisy sources are increased, too. Moreover, to reduce the costs, shipyards make hull structures weaker than before. As above reasons, it is more difficult to control the vibration phenomenon nowadays. In this study, it was investigated why diesel generator sets reached the vibration allowable limits during the FAT and heavy vibration phenomenon of diesel generator sets using ODS test during onboard tests. Also, it is found out the stiffness of deck and common bed using the test result of their structural impedance. To find out the vibratory characteristics of diesel generator sets, model tests were carried out. From the sensitivity analysis after above tests, it was selected points to be reinforced and studied troubleshooting to solve heavy vibration phenomenon of diesel generator sets.
참고문헌 (5)
- 이돈출, "선박용 디젤발전기의 진동 절연을 위한 설계 기준", 한국소음진동공학회논문집, 16(4), pp.329~338 (2006), 한국소음진동공학회
- 김연환, "육상에 설치된 저속 7실린더 디젤엔진의 폭발 기진력 및 고진동 현상", 한국소음진동공학회논문집, 17(9), pp.826~834 (2007), 한국소음진동공학회
- Yoo, K. T., "Vibration characteristics and anti-vibration method of 4 cycle medium sized diesel engine", Proceedings of the KSNVE Annual Spring Conference, pp.392~398 (1998)
- Modal Analysis Theory and Testing, "Ward Heylen", Katholieke Universiteit Leuven, ~ (1997)
- G. S. Choi, "Linear stable systems", IEEE Trans. of Automatic Control, 33(3), pp.1234~1245 (1993)