The modal analysis approach to modeling of structures and acoustic systems results in infinite-dimensional models. For control design purposes, these models are simplified by removing higher frequency modes which lie out of the bandwidth of interest. Truncation can considerably perturb the in-bandwidth zeros of the truncated model. This paper suggests a method of minimizing the effect of the removed higher order modes on the low frequency dynamics of the truncated model by adding a zero frequency term to the low order model of the system. [S0022-0434(00)01501-X]
Minimizing the Effect of Out of Bandwidth Modes in Truncated Structure Models
Contributed by the Dynamic Systems and Control Division for publication in the JOURNAL OF DYNAMIC SYSTEMS, MEASUREMENT, AND CONTROL. Manuscript received by the Dynamic Systems and Control Division August 11, 1998. Associate Technical Editor: E. Fahrenthold.
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Moheimani, S. O. R. (August 11, 1998). "Minimizing the Effect of Out of Bandwidth Modes in Truncated Structure Models." ASME. J. Dyn. Sys., Meas., Control. March 2000; 122(1): 237–239. https://doi.org/10.1115/1.482470
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