Localising the smallest stiffness and its direction of a homogeneous structure by spectral and optimisation approaches

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11150%2F21%3A10438999" target="_blank" >RIV/00216208:11150/21:10438999 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/46747885:24410/21:00008748 RIV/46747885:24220/21:00008748

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=hFG87d.Yvm" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=hFG87d.Yvm</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.engstruct.2020.111842" target="_blank" >10.1016/j.engstruct.2020.111842</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Localising the smallest stiffness and its direction of a homogeneous structure by spectral and optimisation approaches

Popis výsledku v původním jazyce

Structural stiffness plays an important role in engineering design. The analysis of stiffness requires precise experiments and computational models that can be difficult or time-consuming to procure. A novel relation between modal and static stiffness based on modal decomposition is introduced in this study. This relation allows analysing the smallest structural stiffness and its direction. Further, it is shown that the smallest stiffness can be found using an optimisation algorithm that is based on the maximisation of structural compliance. Both approaches are compared on several computational examples leading to similar results in terms of smallest stiffness and its direction. The proposed approaches serve as quantitative/qualitative tools for the analyses of structural stiffness, particularly in structural health monitoring.

Název v anglickém jazyce

Localising the smallest stiffness and its direction of a homogeneous structure by spectral and optimisation approaches

Popis výsledku anglicky

Structural stiffness plays an important role in engineering design. The analysis of stiffness requires precise experiments and computational models that can be difficult or time-consuming to procure. A novel relation between modal and static stiffness based on modal decomposition is introduced in this study. This relation allows analysing the smallest structural stiffness and its direction. Further, it is shown that the smallest stiffness can be found using an optimisation algorithm that is based on the maximisation of structural compliance. Both approaches are compared on several computational examples leading to similar results in terms of smallest stiffness and its direction. The proposed approaches serve as quantitative/qualitative tools for the analyses of structural stiffness, particularly in structural health monitoring.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

30106 - Anatomy and morphology (plant science to be 1.6)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Engineering Structures

ISSN

0141-0296

e-ISSN

—

Svazek periodika

232

Číslo periodika v rámci svazku

APR

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

11

Strana od-do

111842

Kód UT WoS článku

000623060400001

EID výsledku v databázi Scopus

2-s2.0-85099686239