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3-D Shafting Calculations for Marine Installations: Static and Dynamic

[+] Author Affiliations
Wilfried Schiffer, Jean Jenzer

Wärtsilä Switzerland, Ltd., Winterthur, Switzerland

Paper No. ICES2003-0590, pp. 297-303; 7 pages
doi:10.1115/ICES2003-0590
From:
  • ASME 2003 Internal Combustion Engine Division Spring Technical Conference
  • Design, Application, Performance and Emissions of Modern Internal Combustion Engine Systems and Components
  • Salzburg, Austria, May 11–14, 2003
  • Conference Sponsors: Internal Combustion Engine Division
  • ISBN: 0-7918-3678-9 | eISBN: 0-7918-3669-X
  • Copyright © 2003 by ASME

abstract

Due to the particular geometry of the crankshaft of two-stroke diesel engines and the rotational degree of freedom torsional vibrations may be calculated with a 1-D mathematical model, but all other kinds of vibrations have to be calculated with a 3-D model. This concerns also static problems. In this paper the influence of coupled vibrations on ship vibration is explained and illustrated with an example for axial vibrations and an example for external vertical forces and moments. Another example for the use of the 3-D model is the calculation of crank deflection and jack load. It can be shown that such calculations are suitable for daily work.

Copyright © 2003 by ASME

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