THE DETECTION OF TROUBLES IN MARINE DIESEL ENGINES BY SOUND AND VIBRATION
Noise and vibration in Diesel engines are complex phenomena because of the engine's reciprocating movement and the variations in its operating cycle. Accordingly, accurate methods of analysis for the signals picked up by sensors are of primary importance in the early detection and diagnosis of mechanical troubles. This paper describes an experimental study of analytical procedures applied to 2-stroke and 4-stroke medium-speed Diesel engines. The results show that in most circumstances, the time domain data monitoring of high frequency signals of over 20 kHz or of fairly high order natural frequencies of the system are effective detection methods. The study also demonstrates that detection by vibration signals is more effective than that by acoustic signals. It has also been proved both experimentally and analytically, that the torsional vibration monitoring of the end of the crankshaft is a very effective method for the detection of piston scuffing. Order from: BSRA as No. 51,422.
- From the Conference 13-15 November 1978.
International Symposium on Marine EngineeringTokyo, Japan
- Endo, Y
- Komoda, T
- Publication Date: 1978-11
- Features: References;
- Pagination: 13 p.
- TRT Terms: Diesel engines; Engine cylinders; Machinery; Mechanical failure; Monitoring; Noise; Torsion; Vibration; Wear
- Old TRIS Terms: Diesel monitoring; Diesel noise; Medium speed diesels; Torsional vibration
- Subject Areas: Environment; Marine Transportation; Vehicles and Equipment;
- Accession Number: 00301340
- Record Type: Publication
- Source Agency: British Ship Research Association
- Report/Paper Numbers: Paper No. B-5 Conf Paper
- Files: TRIS
- Created Date: Nov 27 1979 12:00AM