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Thursday, July 11 • 10:00 - 10:20
LOW FREQUENCY VIBRATION CHARACTERISTICS OF A SUBMARINE PROPELLER-SHAFT-HULL SYSTEM

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The coupled longitudinal and transverse vibration characteristics of a submarine propeller-shaft-hull system at low frequency are studied in this paper. Two substructures, which are the propeller-shaft subsystem and the submarine hull, are first modeled using the finite element method. The two substructures are then connected through bearings, which are simplified as longitudinal and lateral springs and dampers. The modes, the natural frequencies and the coupled vibration characteristics of the two substructures and their synthesized system are simulated. An experiment studying the dynamic characteristics of a large-scale submarine test-rig is proceeded and compared with the numerical results, showing great consistency.

Moderators
avatar for Simon Jones

Simon Jones

Associate Professor, Rose-Hulman Institute of Technology
Professional interests include undergraduate engineering education, finite element modeling, ground-borne vibrations, vibrations of musical instruments, and dynamics of toys.
GM

Guilhem Michon

Professor, ISAE-SUPAERO

Authors
KZ

Kai Zhang

Mr., Institute of Physical and Chemical Engineering of Nuclear Industry
HG

Houcai Geng

Prof., JIANGNAN SHIPYARD(GROUP)CO.,LTD.


Thursday July 11, 2019 10:00 - 10:20 EDT
St-Laurent 7
  T07 Struct. dyn. & nonlin. vib., RS03 Struct ac & vibr