%0 Conference Paper %1 tobias2010durabilitybased %A Tobias, C. %A Fehr, J. %A Eberhard, P. %B Proceedings of the 2nd International Conference on Engineering Optimization, Paper-ID 1119, Lisbon, Portugal, September 6--9 %D 2010 %K %T Durability-based Structural Optimization with Reduced Elastic Multibody Systems %U /brokenurl#http://www.dem.ist.utl.pt/engopt2010/Book_and_CD/Papers\_CD_Final\_Version/pdf/01/01119-01.pdf %X This contribution presents a structural optimization loop comprising reduced elastic multibody system simulation, finite element models and durability analysis. Whereas conventional approaches in this field require a postprocessing of elastic multibody system results, the presented work allows the calculation of damage values during runtime of the elastic multibody system simulation. Here, those quantities are directly computed during the elastic multibody system simulation in order to speed up computation times. An error-free recovery of dynamic stresses for predefined frequencies is assured by a finite element model order reduction based on so-called Krylov-subspaces. This feature represents an innovation compared to conventional structural optimization loops including reduced elastic multibody system simulation. Those modal approaches, which are state of the art, have to struggle with uncertainties of the elastic multibody system results. The developed optimization loop is illustrated with the help of an example.

@inproceedings{tobias2010durabilitybased, abstract = {This contribution presents a structural optimization loop comprising reduced elastic multibody system simulation, finite element models and durability analysis. Whereas conventional approaches in this field require a postprocessing of elastic multibody system results, the presented work allows the calculation of damage values during runtime of the elastic multibody system simulation. Here, those quantities are directly computed during the elastic multibody system simulation in order to speed up computation times. An error-free recovery of dynamic stresses for predefined frequencies is assured by a finite element model order reduction based on so-called Krylov-subspaces. This feature represents an innovation compared to conventional structural optimization loops including reduced elastic multibody system simulation. Those modal approaches, which are state of the art, have to struggle with uncertainties of the elastic multibody system results. The developed optimization loop is illustrated with the help of an example.}, added-at = {2023-04-14T07:32:36.000+0200}, adress = {Lissabon}, author = {Tobias, C. and Fehr, J. and Eberhard, P.}, biburl = {https://puma.ub.uni-stuttgart.de/bibtex/24192a322db4e3b4463a6bd6dc312efee/unibiblio-5}, booktitle = {Proceedings of the 2nd International Conference on Engineering Optimization, Paper-ID 1119, Lisbon, Portugal, September 6--9}, file = {TobiasFehrEberhard10.pdf:TobiasFehrEberhard10.pdf:PDF}, interhash = {923cfd7fd631b3d617f3316f1a6b9597}, intrahash = {4192a322db4e3b4463a6bd6dc312efee}, keywords = {}, note = {(10 pages)}, owner = {ctobias}, timestamp = {2023-04-14T07:32:36.000+0200}, title = {{Durability-based Structural Optimization with Reduced Elastic Multibody Systems}}, url = {/brokenurl#{\tt http://www.dem.ist.utl.pt/engopt2010/Book_and_CD/Papers\_CD_Final\_Version/pdf/01/01119-01.pdf}}, year = 2010 }