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Crankshaft Torsional Vibration Characteristics in a Vee-Type Six-Cylinder Diesel Engine

[+] Author Affiliations
Jouji Kimura, Kazuhiro Shiono

Isuzu Motors, Ltd., Kawasaki, Japan

Shinichirou Kobayashi

Isuzu Motors, Ltd., Fujisawa, Japan

Paper No. ICES2002-468, pp. 223-230; 8 pages
  • ASME 2002 Internal Combustion Engine Division Spring Technical Conference
  • Design, Operation, and Application of Modern Internal Combustion Engines and Associated Systems
  • Rockford, Illinois, USA, April 14–17, 2002
  • Conference Sponsors: Internal Combustion Engine Division
  • ISBN: 0-7918-1688-5
  • Copyright © 2002 by ASME


Engines have been designed to avoid low-harmonic-order resonant torsional vibration in a commonly-used engine speed range, but the authors have found that, in some engines, especially turbo-charged engines, a significant degree of a low-harmonic-order exciting torque acts on the crankshaft. In these engines, the amplitude of non-resonant low-harmonic-order torsional vibration is almost as large as that of the resonant one and the amplitude of non-resonant vibration can not be controlled by a damper. Accordingly, to investigate the characteristics of non-resonant low-harmonic-order torsional vibration is important. This paper describes the characteristics of non-resonant and resonant torsional vibration for a vee-type six-cylinder diesel engine.

Copyright © 2002 by ASME



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