For structures with non-proportional damping, complex eigenvectors or mode shapes must be used in order to decouple the equations of motion. The resulting equations can then be solved in a systematic way. The necessity of solving a complex eigenvalue problem of a large system remains an obstacle for
On modal coupling in non-classically damped linear systems
โ Scribed by I.W. Park; J.S. Kim; F. Ma
- Publisher
- Elsevier Science
- Year
- 1992
- Tongue
- English
- Weight
- 314 KB
- Volume
- 19
- Category
- Article
- ISSN
- 0093-6413
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๐ SIMILAR VOLUMES
For linear discrete non-classically damped systems, it is shown that truncated orthonormal and biorthonormal eigenvector matrices can be developed for the purpose of uncoupling the physical equations of motion in a truncated ordered set of normal co-ordinates. This approach avoids for large systems
Mode-superposition analysis is an efficient tool for the evaluation of the response of linear systems subjected to dynamic agencies. Two well-known mode-superposition methods are available in the literature, the mode-displacement method and the mode-acceleration method. Within this frame a method is