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선박용 디젤발전기의 진동 절연을 위한 설계 기준

A Design Criterion for the Vibration Isolation of a Marine Diesel Generator Set


The resilient mounts of a diesel engine installed onboard a ship should be designed for both static and dynamic loads. If possible, the resonance frequencies of the six rigid body modes of the installation and the flexible modes of the engine support structure should not lie within the engine operation range. In this paper a design criterion is proposed to evaluate an isolation system which involves the summation of dynamic forces transmitted through the resilient mounts and elastic potential energy index stored in the mounts. A case study is also presented in which a diesel engine generator, which had an elastic foundation and was mounted in a 5500 TEU container vessel, was studied both theoretically and experimentally. The theoretical analysis of the test model was performed by using a single mass 6 degree of freedom system. Actual measurements of mechanical vibration of the engine and its foundation onboard were carried out, which showed the importance of including the flexibility of the engine support structure in the mode.

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참고문헌 (20)

  1. Jenser, J., Technical Report of Wartsila NSD 1997, Vibration Aspects 
  2. Wartsila 2003, Technology Review for Wartsila 46 
  3. Royston, T. J. and Singh. R., 1996. 'Optimization of Passive and Active Non-linear Vibration Mounting Systems Based on Vibration Power Transmission,' Journal of Sound and Vibration, Vol. 194, pp.295-316 
  4. Lee, D. H., Hwang, W. S. and Kim, C. M., 2002, 'Design Sensitivity Analysis and Optimization of an Engine Mount System Using an FRF-based Sub Structuring Method.' Journal of Sound and Vibration, Vol. 255, pp. 383-397 
  5. Kim, J. H. and Lee, J. M. 2000, 'Elastic Foundation Effects on the Dynamic Response of Engine Mount Systems,' Institution of Mechanical Engineers D04098, pp. 45-53 
  6. Bonello, P. and Brennan, M J. 2001, Modelling the Dynamic Behaviour of a Supercritical Rotor on a Flexible Foundation Using the Mechanical Impedance Technique, Journal of Sound and Vibration, Vol. 239, pp. 445-466 
  7. Maia, Nuno M. M. and Silva, Julio M. M. 1996, Theoretical and experimental modal analysis, Research studies press ltd 
  8. Thite, A. N. and Thompson, D. J. 2003, 'The Quantification of Structure-borne Transmission Paths by Inverse Methods. Part 1: Improved Singular Value Rejection Method,' Journal of Sound and Vibration Vol. 264, pp. 411-431 
  9. ISO 10846-1 1997(E), Acoustics and Vibration-Laboratory Measurement of Vibro-acoustic Transfer Properties of Resilient Elements Part 1 : Principles and Guidelines 
  10. ISO 10846-3 2002 (E) , Acoustics and Vibration-laboratory Measurement of Vibro-acoustic Transfer Properties of Resilient Elements Part 2: Dynamic Stiffness of Elastic Supports for Translatory Motion (Indirect method) 
  11. TNO-report 1994 TPD-HAG-PRT-940167-RD, Noise and Vibration Isolation with Mountings : How Many, How Stiff 
  12. Rubber design Co., Marine mountings catalog, 2004 
  13. Lee, D. C, Brennan, M. J. and Mace, B. R., 2004, Vibration Characteristics of a Marine Diesel Engine Generator, ISVR Technical Memorandum No. 943 of University of Southampton 
  14. ISO 8528-9 1991, Reciprocating Internal Combustion Engine Driven Alternating Current Generating Sets-Part 9: Measurement and Evaluation of Mechanical Vibrations 
  15. Lee, D. C., Kim, Y. K., Kim, U. K and Jeon, H. J., 1998 22nd, A Study on the Vibration Controls for the Diesel Power Plant with Paralleled Two Stroke Low Speed Diesel Engines, CIMAC (International council on combustion engines) World Congress 1998 Copenhagen, pp. 1635-1648 
  16. Wartsila, 2004, Marine News NO.2-2004/ Guidelines to Engine Dynamics and Vibration 
  17. CIMAC(International Council on Combustion Engines), 1994 Number 14. Standard Method for the Determination of the Structure-borne Noise from Engines 
  18. Tao, J. S., Liu, G. R. and Lam, K. Y. 2000, 'Design Optimization of Marine Engine-mount System,' Journal of Sound and Vibration, Vol. 235, pp. 477-497 
  19. Cyril M. Harris, Shock and Vibration Handbook, 3rd edition, McGraw-Hill, New York, 1986 
  20. ISO 10846-2 1997(E), Acoustics and Vibration-laboratory Measurement of Vibro-acoustic Transfer Properties of Resilient Elements Part 2: Dynamic Stiffness of Elastic Supports for Translatory Motion (Direct method) 

이 논문을 인용한 문헌 (2)

  1. Jin, Bong-Man ; Park, Hyung-Sik ; Kong, Yong-Mo 2009. "Study on the Vibration of Diesel Engine Generator of Drill Ship" 한국마린엔지니어링학회지 = Journal of the Korean Society of Marine Engineering, 33(4): 502~508 
  2. Kim, Ui-Gan ; Kim, Hyeong-Jin ; Kim, Yang-Gon 2014. "" 소음진동 = Journal of KSNVE, 24(3): 19~26 


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