Non-linear transient behaviour of #exible structures requires numerical integration of the system's equations of motion. A simpli"ed method for identifying the impulse response function, while avoiding this integration, is presented here. The impulse response function obtained is time dependent and
NON-LINEAR DYNAMIC IDENTIFICATION: AN APPLICATION TO PRESTRESSED CABLE STRUCTURES
โ Scribed by G.E.B. Tan; S. Pellegrino
- Publisher
- Elsevier Science
- Year
- 1997
- Tongue
- English
- Weight
- 249 KB
- Volume
- 208
- Category
- Article
- ISSN
- 0022-460X
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โฆ Synopsis
The paper presents a robust implementation of the restoring force method, which is applied to the dynamic identification of two simple prestressed cable structures. The system parameters identified from two different types of dynamic experiments are found to be generally in good agreement with the parameters calculated from direct static measurements. Hence, general conclusions are reached on optimal identification strategies for lightweight non-linear structures.
๐ SIMILAR VOLUMES
This paper presents a method for experimentally identifying the parameters of a lightly damped non-linear system with an odd restoring force, as represented by the Du$ng equation. It requires only a single free vibration test to determine the variation of the natural frequency with the decaying ampl