Browse Publications Technical Papers 2007-01-2324
2007-05-15

Validation of an EFEA Formulation for Computing the Vibrational Response of Complex Structures 2007-01-2324

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.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 18% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

Validation of a Hybrid Finite Element Formulation for Mid-Frequency Analysis of Vehicle Structures

2007-01-2303

View Details

TECHNICAL PAPER

Issues Concerning Material Constitutive Laws and Parameters in Springback Simulations

1999-01-1002

View Details

TECHNICAL PAPER

Valvetrain Response Prediction Using Advanced Continuous Simulation Language

962512

View Details

X