Advanced thinking on tricky excitations

摘要

The number of excitation sources potentially causing vibration problems can be significantly reduced by CFD and vibration analyses. A report by Wolfgang Menzel, Dr El Moctar, and Holger Mumm (all Germanischer Lloyd). The source of unpleasant vibrations onboard ships is sometimes easy to detect but difficult to solve. Normally, the respective frequency clearly demonstrates which part of the power train is to blame, pointing to either the main engine or the propeller.