A two-stage, time-domain approach to machine tool structural dynamics identification from sampled experimental data is proposed. In the first stage a discrete-time model is obtained through an estimation scheme which is exclusively based on linear techniques, and a simple and systematic modeling strategy. The properties of the estimator are examined and its consistency established. In the second stage the modal parameters are evaluated through a new procedure, capable of detecting and correcting large errors which are introduced into the modal parameter estimates in the case of structures with large bandwidth or data sampled at very high rates. The validity and effectiveness of the proposed approach is finally established by using numerically simulated, as well as, actual experimental data.
|Original language||English (US)|
|Number of pages||14|
|State||Published - 1987|
ASJC Scopus subject areas
- Industrial and Manufacturing Engineering
- Mechanical Engineering