Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6924369 | Computers & Structures | 2016 | 13 Pages |
Abstract
In paper the design sensitivity analysis of dynamic characteristics of structures with viscoelastic (VE) dampers is considered. The dampers are modeled using the classical rheological model and the rheological model with fractional derivatives. The design sensitivity is analyzed by using direct differentiation method and adjoint variables method. The formulae enabling the calculation of sensitivity of the first and the second order with respect to chosen design parameters have been derived. Sensitivity analysis of eigenvalues, eigenvectors and dynamic characteristics such as natural frequencies and non-dimensional damping ratios are presented. The correctness of the presented formulae is illustrated in examples.
Related Topics
Physical Sciences and Engineering
Computer Science
Computer Science Applications
Authors
Roman Lewandowski, Magdalena Åasecka-Plura,