J Shanghai Jiaotong Univ Sci ›› 2022, Vol. 27 ›› Issue (3): 365-374.doi: 10.1007/s12204-020-2248-2

• Naval Architecture and Ocean Engineering • Previous Articles     Next Articles

Experimental Investigation and Numerical Simulation of Ship Stern Structural Vibration Model

YE Xinghong (叶星宏), XIA Lijuan∗ (夏利娟)   

  1. (State Key Laboratory of Ocean Engineering; Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration; School of Naval Architecture, Ocean & Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, China)
  • Received:2020-06-08 Online:2022-05-28 Published:2022-06-23

Abstract: Vibration at the stern area is generally the most severe of the entire ship hull, which has always at tracted special attention by ship designers and researchers. With reference to a real ship structural layout, a scaled stern model of steel structure was innovatively designed to carry out the mode and response tests. Corresponding finite element (FE) model representing the tested structure was established for verification of commonly-used calculation methods of modal parameters and response. Good agreement between experimental and numerical results demonstrates the credibility of FE method, and some key points of modeling and calculating are discussed. In addition, with the combination of the experiment and calculation, some vibration characteristics of ship stern structure are summarized for future ship design guideline.

Key words: stern vibration, model test, virtual mass method, modal superposition method, vibration character istics, finite element (FE) model

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