Prediction and Verification of Energy Flow in a Structure Using an Energy Finite Element Approach

951305

05/01/1995

Event
SAE Noise and Vibration Conference and Exposition
Authors Abstract
Content
Wavenumber domain methods have been developed to experimentally determine the flexural group speeds and loss factors in beam elements and the flexural power transmission and reflection coefficients of joints in a structure. These techniques are used in this paper to measure uncertain information for an Energy Finite Element Method (EFEM) model of a ladder frame structure. The loss factors and group speeds in each element in the structure were measured and found to compare well with the analytical predictions. However, the flexural power transmission and reflection coefficients of the joints in the structure were found to be significantly different from analytically predicted values. EFEM predictions and measured velocities for several components are compared.
Meta TagsDetails
DOI
https://doi.org/10.4271/951305
Pages
8
Citation
Unglenieks, R., and Bernhard, R., "Prediction and Verification of Energy Flow in a Structure Using an Energy Finite Element Approach," SAE Technical Paper 951305, 1995, https://doi.org/10.4271/951305.
Additional Details
Publisher
Published
May 1, 1995
Product Code
951305
Content Type
Technical Paper
Language
English