Analysis of nonlinear systems using ARMA (autoregressive moving average) models
While many vibration systems exhibit primarily linear behavior, a significant percentage of the systems encountered in vibration and model testing are mildly to severely nonlinear. Analysis methods for such nonlinear systems are not yet well developed and the response of such systems is not accurately predicted by linear models. Nonlinear ARMA (autoregressive moving average) models are one method for the analysis and response prediction of nonlinear vibratory systems. In this paper we review the background of linear and nonlinear ARMA models, and illustrate the application of these models to nonlinear vibration systems. We conclude by summarizing the advantages and disadvantages of ARMA models and emphasizing prospects for future development. 14 refs., 11 figs.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- DOE/MA
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 5283412
- Report Number(s):
- LA-UR-89-3375; CONF-900139-2; ON: DE90002395; TRN: 90-000009
- Resource Relation:
- Conference: 8. international modal analysis conference, Kissimmee, FL (USA), 29 Jan - 1 Feb 1990
- Country of Publication:
- United States
- Language:
- English
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