کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
509902 | 865724 | 2013 | 14 صفحه PDF | دانلود رایگان |
Deterministic and Bayesian finite element (FE) model updating techniques are computationally very demanding operations due to the large number of FE model re-analyses required. Component mode synthesis techniques are proposed to carry out the re-analyses efficiently in a substantially reduced space of generalized coordinates using exact component modes and characteristic interface modes computed only once from a reference FE model. The re-assembling of the reduced-order system matrices from components and interface modes is avoided. Theoretical and computational developments are demonstrated with model updating and damage identification applications for a highway bridge using a high fidelity model and simulated measurements.
► A CMS method is proposed to handle large number of FE re-analyses in model updating.
► Re-analyses of component fixed and characteristic interface modes are avoided.
► The method integrates well in deterministic and Bayesian FE model updating.
► A high fidelity model of a highway bridge demonstrates the method’s effectiveness.
► Remarkable reduction of computational effort is achieved.
Journal: Computers & Structures - Volume 126, 15 September 2013, Pages 15–28