Hybrid experimental/analytical models of structural dynamics - Creation and use for predictions
Abstract
An original complete methodology for the construction of predictive models of damped structural vibrations is introduced. A consistent definition of normal and complex modes is given which leads to an original method to accurately identify non-proportionally damped normal mode models. A new method to create predictive hybrid experimental/analytical models of damped structures is introduced, and the ability of hybrid models to predict the response to system configuration changes is discussed. Finally a critical review of the overall methodology is made by application to the case of the MIT/SERC interferometer testbed.
- Publication:
-
AIAA/ASME/ASCE/AHS/ASC 34th Structures, Structural Dynamics, and Materials Conference
- Pub Date:
- April 1993
- Bibcode:
- 1993ssdm.conf.2587B
- Keywords:
-
- Dynamic Structural Analysis;
- Finite Element Method;
- Prediction Analysis Techniques;
- Structural Vibration;
- Vibration Damping;
- Frequency Ranges;
- Interferometers;
- Mimo (Control Systems);
- Structural Mechanics