Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Sangjune Bae"'
Autor:
Joshua Garno, Kyle Hughes, Thomas L. Jackson, S. Balachandar, Frederick Ouellet, Raphael T. Haftka, Sangjune Bae, Nam H. Kim
Publikováno v:
Physical Review Fluids. 5
Uncertainty-quantification-driven simulations of an explosive experiment are performed to minimize the flow prediction error in the PBXN-5 detonation products and air flow. The global sensitivity response of JWL model parameters based on simulation t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5081afb35b9831a560619c87bf7d90f7
https://doi.org/10.1103/physrevfluids.5.123201
https://doi.org/10.1103/physrevfluids.5.123201
Publikováno v:
Journal of Mechanical Design. 142
An approach is proposed to quantify the uncertainty in probability of failure using a Gaussian process (GP) and to estimate uncertainty change before actually adding samples to GP. The approach estimates the coefficient of variation (CV) of failure p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6f764d9bbb2f563f4cf5bbecc4679a30
https://doi.org/10.1115/1.4047002
https://doi.org/10.1115/1.4047002
Publikováno v:
Structural and Multidisciplinary Optimization. 57:1845-1855
The objective of this paper is a tradeoff between changing design and controlling sampling uncertainty in reliability-based design optimization (RBDO). The former is referred to as ‘living with uncertainty’, while the latter is called ‘shaping
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c09478d062a8e6937263649161b49ce7
https://doi.org/10.1007/s00158-018-1936-0
https://doi.org/10.1007/s00158-018-1936-0
Publikováno v:
AIAA Journal. 55:3916-3924
A Bayesian network represents a causal relationship among random variables using conditional probabilities. Because of limited resources and sampling uncertainty, the estimated probabilities have b...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::efa96c787a642ca0b77a2c50aabe691d
https://doi.org/10.2514/1.j055888
https://doi.org/10.2514/1.j055888
Autor:
Sangjune Bae, Nam H. Kim
Publikováno v:
Volume 2B: 45th Design Automation Conference.
A novel approach is introduced to estimate the change in the variance of the probability of failure by adding a sample to the Gaussian process (GP) in a conservative manner. Uncertainty in probability stems from prediction uncertainty and GP is used
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5e40f6121a3f3ec06a6ccf9374886248
https://doi.org/10.1115/detc2019-97472
https://doi.org/10.1115/detc2019-97472
Publikováno v:
Journal of Mechanical Design. 141
This paper presents a tradeoff between shifting design and controlling sampling uncertainty in system reliability-based design optimization (RBDO) using the Bayesian network. The sampling uncertainty is caused by a finite number of samples used in ca
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cfeb49b0437e8d1e372ccb06bffa59be
https://doi.org/10.1115/1.4041859
https://doi.org/10.1115/1.4041859
Publikováno v:
Volume 2B: 44th Design Automation Conference.
The main objective of this paper is to quantify the effect of surrogate model uncertainty on reliability in addition to the aleatory randomness of the input variables, especially when Kriging surrogate model is utilized where the prediction uncertain
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a6742696bdc83a7adbef029965bb247c
https://doi.org/10.1115/detc2018-85541
https://doi.org/10.1115/detc2018-85541
Autor:
Nam H. Kim, Sangjune Bae
Publikováno v:
2018 AIAA Non-Deterministic Approaches Conference.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dc93336e108c109b8059c7d8547c143f
https://doi.org/10.2514/6.2018-0434
https://doi.org/10.2514/6.2018-0434
Publikováno v:
Journal of Power Sources. 293:498-510
A thermal-runaway model of lithium-ion battery is developed by devising a resistive heating that includes short circuit current and integrating it with existing electrochemical and exothermic reaction model of lithium-ion battery. With the developed
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4ac03d8493ca0c7cb777808c452f24a1
https://doi.org/10.1016/j.jpowsour.2015.05.095
https://doi.org/10.1016/j.jpowsour.2015.05.095