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Keywords: epistemic uncertainty
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Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Mech. Des. February 2023, 145(2): 023303.
Paper No: MD-22-1159
Published Online: November 17, 2022
... on evidence theory is proposed to uniformly analyze the influence of epistemic uncertainty and their correlation in modeling parameters on the positioning accuracy of robotic end effector. For the epistemic uncertainty derived from the limited sample data of modeling parameters, a generalized evidence theory...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Mech. Des. September 2021, 143(9): 091701.
Paper No: MD-20-1678
Published Online: February 11, 2021
..., one of the epistemic uncertainties in reliability-based design optimization (RBDO), has to be considered during the design process to prevent unexpected failure of a system that stems from an inaccurate surrogate model. However, there have been limited attempts to obtain a reliable optimum taking...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Mech. Des. May 2020, 142(5): 051701.
Paper No: MD-18-1475
Published Online: November 11, 2019
...Lixiong Cao; Jie Liu; Chao Jiang; Zhantao Wu; Zheng Zhang Evidence theory has the powerful feature to quantify epistemic uncertainty. However, the huge computational cost has become the main obstacle of evidence theory on engineering applications. In this paper, an efficient uncertainty...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Mech. Des. May 2019, 141(5): 051404.
Paper No: MD-18-1618
Published Online: January 11, 2019
... epistemic uncertainty modeling for both model bias and model parameters can make reliability estimation errors controllable with less conservativeness compared to the direct reliability modeling using the Bayesian approach. Contributed by the Design Automation Committee of ASME for publication...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Mech. Des. April 2019, 141(4): 041403.
Paper No: MD-18-1308
Published Online: January 11, 2019
... to be controlled to achieve the desired level of system reliability. Numerical examples show that both shifting design and reducing sampling uncertainty are crucial in the system RBDO. Once the effect of epistemic uncertainty is quantified, the next question is how to control such uncertainty. Note...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Technical Briefs
J. Mech. Des. January 2012, 134(1): 014502.
Published Online: January 4, 2012
.... It is important to ensure that the probabilistic constraints at the optimum in a RBDO problem are insensitive to the variations of design variables. In this paper, we propose a novel concept and procedure for reliability based robust design in the context of random uncertainty and epistemic uncertainty...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Mech. Des. May 2010, 132(5): 051003.
Published Online: April 29, 2010
...Jooho Choi; Dawn An; Junho Won An efficient method for a structural reliability analysis is proposed under the Bayesian framework, which can deal with the epistemic uncertainty arising from a limited amount of data. Until recently, conventional reliability analyses dealt mostly with the aleatory...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Mech. Des. March 2009, 131(3): 031006.
Published Online: February 5, 2009
... aleatory uncertainty and epistemic uncertainty may associate with design variables. This paper proposes the formulation of random/fuzzy continuous/discrete variables design optimization (RFCDV-DO) and two different approaches for uncertainty analysis (probability/possibility analysis). A method named...
Journal Articles
Publisher: ASME
Article Type: Technical Briefs
J. Mech. Des. August 2007, 129(8): 876–882.
Published Online: May 4, 2006
...Byeng D. Youn; Kyung K. Choi; Liu Du; David Gorsich In practical engineering applications, there exist two different types of uncertainties: aleatory and epistemic uncertainties. This study attempts to develop a robust design optimization with epistemic uncertainty. For epistemic uncertainties...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Mech. Des. July 2006, 128(4): 969–979.
Published Online: December 21, 2005
... of precise information about the irreducible uncertainty, shown in Fig. 1b , is defined as imprecision . Other authors use terms such as epistemic uncertainty, ignorance, or reducible uncertainty ( 15 16 17 ) to describe similar aspects of uncertainty. We...