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Application of System Identification in Naval Engineering

  • R. Maltese
Part of the International Centre for Mechanical Sciences book series (CISM, volume 296)

Abstract

Nowadays, the vibration problem is one to be faced at an early stage of ship design to avoid uncomfortable service condition or heavy troubleshooting interventions. Good vibratory ship performance, related to a maximum allowable level, is usually requested according to specifications by the ship owners, which refer to the ISO code under publication in its final form. Moreover, the delivery trials include standard vibration tests to check the vibratory levels. This has caused the shipyards, over the last ten years, to seek improved methods of predicting ship vibration in order to protect themselves, as far as possible, against the risk problems occuring once the ship has been launched. Today, well-defined methodologies are available and can predict with increasing accuracy both the magnitude of the exciting forces and the level of the structural response at all stages of design. However, although well-established from the theoretical and methodological points of view, these methods still require continuous improvements in order to cope with the increasing demand in terms of ship structural complexity and comfort requirements. Moreover, even the most sophisticated theoretical investigations need to be complemented by data (such as damping coefficients for the evaluation of the structural response)

Keywords

Modal Parameter Response Operator Exciting Force Logarithmic Decrement Coherent Noise 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Wien 1988

Authors and Affiliations

  • R. Maltese
    • 1
  1. 1.CETENAGenovaItaly

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