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dc.contributor.advisor Perera, PABAR
dc.contributor.advisor Wimalasiri, WK
dc.contributor.author Jayarathne, GG
dc.date.accessioned 2011-06-15T06:22:22Z
dc.date.available 2011-06-15T06:22:22Z
dc.date.issued 6/15/2011
dc.identifier.citation Jayarathne, G.G. (2001). Vibration diagnostic of rotor mechanisms in ships [Master's theses, University of Moratuwa]. Institutional Repository University of Moratuwa. http://dl.lib.mrt.ac.lk/theses/handle/123/1130
dc.identifier.uri http://dl.lib.mrt.ac.lk/theses/handle/123/1130
dc.description.abstract In ships, there are so many sources of noise and Vibration such as propulsion engines and electric generators in restricted spaces and structures of ships, which are made of steel, transmit vibration well. By the reasons, noise and vibration of ships are very big by nature and reduction of noise and vibration is important subject for ships. Regarding noise reduction, reduction of noise cause by vibration has difficulty and the major part of such noise is structure born noise. "Vibration" is not a problem. It is a physical manifestation of machinery imperfection. It is used to help find obvious and subtle deviations in machines. No machine runs perfect. "Diagnosis" is the Method of Detection. If, a fault develops and goes undetected, then, at best, the problem will not be too serious and can be remedied quickly and cheaply; at worst, it may result in expensive damage and down-time, injury, or even loss of life. There is no reason or excuse to have machinery operate unprotected. The areas of interest in vibration measuring in plant maintenance are general measurement, analysis, and corrective. All rotor mechanisms in ships consist of shafts, bearings, couplings, gears etc. These machinery operate under various load conditions from light to heavy. Ship propulsion system comparatively works under very heavy load conditions with rolling and pitching of the ship which may tend to cause overstressing of shafts.
dc.subject MECHANICAL ENGINEERING-Thesis en_US
dc.subject ROTORS-Vibrations
dc.subject VIBRATIONS-Measurements
dc.subject SHIPS
dc.title Vibration diagnostic of rotor mechanisms in ships en_US
dc.type Thesis-Abstract
dc.identifier.faculty Engineering en_US
dc.identifier.degree MPhil en_US
dc.identifier.department Department of Mechanical Engineering, en_US
dc.date.accept 2001
dc.date.accept 2001
dc.identifier.accno 74441 en_US


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