A preconditioned iterative method for modal frequency-response analysis of structures with non-proportional damping
β Scribed by Chang-Wan Kim
- Publisher
- Elsevier Science
- Year
- 2006
- Tongue
- English
- Weight
- 297 KB
- Volume
- 297
- Category
- Article
- ISSN
- 0022-460X
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## Abstract Dynamic equilibrium equations of structural systems with nonβproportional damping are coupled through the damping terms. Such coupling invalidates application of the classical modal superposition method. In this paper, a modeβsuperposition pseudoβforce method is proposed. The coupled eq
A local modal/perturbational method is described which enables estimates to be made of the statistics of frequency response functions of a system whose properties are uncertain. The method is computationally very e$cient, providing these estimates at little cost above that required to perform a sing
In this paper, a solution method is presented to solve the eigenproblem arising in the dynamic analysis of non-proportional damping systems with symmetric matrices. The method is based on the Lanczos method to generate one pair of Krylov subspaces consisting of trial vectors, which is then used to r