Prediction and Verification of Energy Flow in a Structure Using an Energy Finite Element Approach 951305
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.
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. Download Citation
Author(s):
Robert J. Unglenieks, Robert J. Bernhard
Affiliated:
Purdue Univ.
Pages: 8
Event:
SAE Noise and Vibration Conference and Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Proceedings of the 1995 Noise and Vibration Conference-P-291, SAE 1995 Transactions: Journal of Passenger Cars-V104-6
Related Topics:
Transmissions
Energy consumption
Frames
SAE MOBILUS
Subscribers can view annotate, and download all of SAE's content.
Learn More »