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of 17
pro vyhledávání: '"Zdeněk Kala"'
Autor:
Zdeněk Kala
Publikováno v:
Mathematics, Vol 9, Iss 2425, p 2425 (2021)
Mathematics. 2021, vol. 9, issue 19, p. 1-20.
Mathematics; Volume 9; Issue 19; Pages: 2425
Mathematics. 2021, vol. 9, issue 19, p. 1-20.
Mathematics; Volume 9; Issue 19; Pages: 2425
This article presents new sensitivity measures in reliability-oriented global sensitivity analysis. The obtained results show that the contrast and the newly proposed sensitivity measures (entropy and two others) effectively describe the influence of
Autor:
Zdeněk Kala
Publikováno v:
ENTROPY. 2021, vol. 23, issue 6, p. 1-16.
Entropy
Volume 23
Issue 6
Entropy, Vol 23, Iss 778, p 778 (2021)
Entropy
Volume 23
Issue 6
Entropy, Vol 23, Iss 778, p 778 (2021)
Differential entropy can be negative, while discrete entropy is always non-negative. This article shows that negative entropy is a significant flaw when entropy is used as a sensitivity measure in global sensitivity analysis. Global sensitivity analy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::976048ebdd8f2afced7870d04b28b2f6
https://hdl.handle.net/11012/204062
https://hdl.handle.net/11012/204062
Autor:
Zdeněk Kala
Publikováno v:
Symmetry. 2021, vol. 13, issue 2, p. 1-21.
Symmetry, Vol 13, Iss 263, p 263 (2021)
Symmetry; Volume 13; Issue 2; Pages: 263
Symmetry, Vol 13, Iss 263, p 263 (2021)
Symmetry; Volume 13; Issue 2; Pages: 263
The article introduces quantile deviation l as a new sensitivity measure based on the difference between superquantile and subquantile. New global sensitivity indices based on the square of l are presented. The proposed sensitivity indices are compar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c938fd4d387f192f5bb10121adb0d35b
https://hdl.handle.net/11012/204095
https://hdl.handle.net/11012/204095
Autor:
Jan Valeš, Zdeněk Kala
Publikováno v:
Archives of Civil and Mechanical Engineering. 18:1207-1218
The present paper applies Sobol's variance-based global sensitivity analysis (SSA) to quantify the contribution of input imperfections to the load-carrying capacity (LCC) of an IPN 200 steel compressed member. LCC is evaluated using the geometrically
Autor:
Zdeněk Kala
Publikováno v:
Structures. 2020, vol. 28, issue December 2020, p. 2424-2430.
In limit state design, the reliability of building constructions is generally verified using design quantiles. The design resistance of a structure is explicitly expressed as a low quantile of the cumulative distribution function of resistance. The a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::16ea64f294748e9f1af94bbe2486cbbd
https://hdl.handle.net/11012/196475
https://hdl.handle.net/11012/196475
Autor:
Zdeněk Kala
Publikováno v:
Journal of Civil Engineering and Management; Vol 25 No 4 (2019); 297-305
Journal of Civil Engineering and Management, Vol 25, Iss 4 (2019)
Journal of Civil Engineering and Management, Vol 25, Iss 4 (2019)
The article investigates the application of a new type of global quantile-oriented sensitivity analysis (called QSA in the article) and contrasts it with established Sobol’ sensitivity analysis (SSA). Comparison of QSA of the resistance design valu
Publikováno v:
Journal of Civil Engineering and Management; Vol 24 No 5 (2018); 390-398
Journal of Civil Engineering and Management, Vol 24, Iss 5 (2018)
Journal of Civil Engineering and Management, Vol 24, Iss 5 (2018)
A variety of engineering activities require reliable evaluation of rock strength. For instance, the stability of rock slopes depends on structural geology of rock massif in which the slope is excavated. Hoek-Brown (HB) failure criterion applied in ro
Autor:
Zdeněk Kala
Publikováno v:
IOP Conference Series: Materials Science and Engineering. 668:012015
This article focuses on reliability-oriented global sensitivity analysis of the fatigue limit state of a steel member stressed by many times repeated loading. The fatigue limit state is associated with fatigue failure, which is caused by brittle frac
Autor:
Zdeněk Kala
Publikováno v:
Engineering Structures. 33:2342-2349
The article presents the sensitivity and statistical analyses of the load-carrying capacity of a steel portal frame. It elaborates a typical stability problem of a system comprising two single-storey columns loaded in compression. The elements of thi
Autor:
Zdeněk Kala
Publikováno v:
Thin-Walled Structures. 49:645-651
The objective of the paper is to analyse the influence of initial imperfections on the load-carrying capacity of a single storey steel plane frame comprised of two columns loaded in compression. The influence of the variance of initial imperfections