The dynamics of a vibro-impacting cantilever beam experiment using an impact load cell is considered. The signal recorded from the cell produces spike train-type data. The issues related to the analysis of such data are discussed; particularly the sampling rate and threshold values. For vibro-impact
A VIBRO-IMPACTING MODEL FOR THE DETECTION OF DELAMINATION
β Scribed by P. VIELSACK
- Publisher
- Elsevier Science
- Year
- 2002
- Tongue
- English
- Weight
- 311 KB
- Volume
- 253
- Category
- Article
- ISSN
- 0022-460X
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β¦ Synopsis
Forced oscillations of delaminated sandwich structures are dominated by impacts. A rigid body-spring model allows a discussion of the in#uence of internal dissipation on the system's response and the evolution of the number of impacts.
π SIMILAR VOLUMES
Impacts in forced dynamic systems lead to non-smooth vibrations, showing a scenario of bifurcations. Mechanical and numerical modelling is known for rigid body systems with distinct points of contact. In contrast, continuous systems can have a line of possible contact. As an example a vibrating beam
For the purpose of ascertaining the limits of applicability of a previously proposed model [l] of non-propagating shear delaminations for analysing a three-layer rod with delamination-type defects, the numerical solution of the corresponding threedimensional problem in the theory of elasticity is co