Ship-Vibrations

General information

Lecture and exercise notes can be retrieved at Stud.Ip.

More Information can be found in the university calendar (at the intranet of the TUHH).

Contents

1. Introduction; assessment of vibrations
2. Basic equations
3. Beams with discrete / distributed masses
4. Complex beam systems
5. Vibration of plates and Grillages
6. Deformation method / practical hints / measurements
7. Hydrodynamic masses
8. Spectral method
9. Hydrodynamic masses acc. to Lewis
10. Damping
11. Shaft systems
12. Propeller excitation
13. Engines

Learning Outcomes

Knowledge:

Acceptance criteria for vibrations on ships; methods for the calculation of natural frequencies and forced vibrations of sructural components and the entire hull girder; effect of exciting forces of the propeller and main engine and methods for their determination.

Skills:

Acquaintance with methods for the calculation of natural frequencies and exciting forces and resulting vibrations of ship structures including their assessment; modelling of structures for the vibration analysis.

Competences:

Ability to detect vibration-prone components on ships, to model the structure, to select suitable calculation methods and to assess the results.

Performance Record

Home exercises
written exam