dc.creator | Trišović, Nataša | |
dc.creator | Li, Wei | |
dc.creator | Sedmak, Aleksandar | |
dc.creator | Petrović, Ana | |
dc.creator | Mitrović, Radivoje | |
dc.creator | Stokić, Zoran | |
dc.date.accessioned | 2023-03-13T12:50:30Z | |
dc.date.available | 2023-03-13T12:50:30Z | |
dc.date.issued | 2017 | |
dc.identifier.uri | https://machinery.mas.bg.ac.rs/handle/123456789/5985 | |
dc.description.abstract | The dynamic behavior of a structural system is characterized by its eigendata. The partial
derivatives of eigenvalues and eigenvectors of mechanical system with respect to the design
parameters have attracted extensive attention for the last four decades because of their various
applications, such as optimal dynamic design, machinery failure diagnostic, parameter
identification, model modification and automative control. A more general problem of structural
dynamic analysis has three important aspects. Firstly, the observed physical structure is
represented by initial finite element model. Modeling is based on numerous idealizing
approximations within an exaggerated elaboration of details, which in essence does not
significantly improve the accuracy of output data, especially having available powerful computers
and appropriate software packages. Optimal alternative is to have the possibility of verifying
outputted data that were measured on a prototype or real structure. Secondly, the dynamic
characteristics of construction under reanalysis are analyzed. What is basically observed are
eigenvalues and main forms of oscillations as characteristic variables that can invoke inadequate
actual dynamic behavior. Thirdly, on the basis of the analysis of actual dynamic behavior,
modification steps are proposed after which a modified model is obtained. Having in mind that
mechanical structures are most often very complex, the most convenient modification steps are
not easily obtained. The most straightforward approach for calculating the derivatives is the finite
difference method. There mainly exist three categories in the literature: the modal method, the
direct method and the iterative method. Several methods for the computation of eigenvector
derivatives is analyzed with emphasis on the iterative methods. | sr |
dc.language.iso | en | sr |
dc.relation | info:eu-repo/grantAgreement/MESTD/Technological Development (TD or TR)/35040/RS// | sr |
dc.relation | info:eu-repo/grantAgreement/MESTD/Technological Development (TD or TR)/35011/RS// | sr |
dc.rights | openAccess | sr |
dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/4.0/ | |
dc.source | Proceedings of the 6th International Congress of Serbian Society of Mechanics | sr |
dc.subject | eigensensitivity | sr |
dc.subject | structural optimization | sr |
dc.subject | repeated frequencies | sr |
dc.title | Iterative methods for eigensesnitivity analysis-a review | sr |
dc.type | conferenceObject | sr |
dc.rights.license | BY-NC-ND | sr |
dc.citation.issue | S6c | |
dc.citation.rank | M33 | |
dc.identifier.fulltext | http://machinery.mas.bg.ac.rs/bitstream/id/14857/bitstream_14857.pdf | |
dc.identifier.rcub | https://hdl.handle.net/21.15107/rcub_machinery_5985 | |
dc.type.version | publishedVersion | sr |