An Approach for Multi-Reference Identification of Modal Parameters in Frequency Domain 951365
A new method is introduced here to identify modal parameters by fitting curves with multiple degrees of freedom to experimental data in frequency domain. Unknown parameters in our method are natural frequencies and modal damping ratios, and, from these parameters natural modes and residual terms are determined. In comparing our method with the conventional Van Loon's method, fewer unknown parameters are dealt with, and thus computing time is shorter with better convergence of solution. Simulation results obtained show that our method is useful especially in refering to many data simultaneously.
Citation: Iwahara, M. and Nagamatsu, A., "An Approach for Multi-Reference Identification of Modal Parameters in Frequency Domain," SAE Technical Paper 951365, 1995, https://doi.org/10.4271/951365. Download Citation
Author(s):
Mitsuo Iwahara, Akio Nagamatsu
Pages: 10
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
Related Topics:
Fittings
Identification
Simulation and modeling
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