Validation of an EFEA Formulation for Computing the Vibrational Response of Complex Structures Michigan Engineering Services, LLC

Format:

Conference/Event

Author/Creator:

Zhang, Geng, author.

Conference Name:

SAE 2007 Noise and Vibration Conference and Exhibition (2007-05-15 : St. Charles, Illinois, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2007

Summary:

This paper presents a validation case study for an Energy Finite Element Analysis (EFEA) formulation through comparison to test data. The EFEA comprises a simulation tool for computing the structural response of a complex structure and the amount of the radiated power. The EFEA formulation presented in this paper can account for periodic stiffeners, for partial fluid loading effects on the outer part of the structure, and for internal compartments filled with heavy fluid. In order to validate these modeling capabilities of the EFEA two 1/8th scale structures representing an advanced double hull design and a conventional hull design of a surface ship are analyzed. Results for the structural vibration induced on the outer bottom part of the structure are compared to available test data. The excitation is applied at two different locations of the deck structure. Good correlation is observed between the numerical results and the test data. In this paper, some theoretical background is presented first about the three main EFEA modeling capabilities utilized in the analysis. Then the test configurations are discussed, and the correlation between computations and tests are presented

Notes:

Vendor supplied data

Publisher Number:

2007-01-2324

Access Restriction:

Restricted for use by site license