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Keywords: uncertainty
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Journal Articles
Article Type: Research-Article
ASME J. Risk Uncertainty Part B. June 2022, 8(2): 021201.
Paper No: RISK-21-1023
Published Online: September 20, 2021
...Kalman Ziha The probabilistic safety analysis evaluates system reliability and failure probability by using statistics and probability theory. However, it cannot estimate the system safety uncertainties due to variabilities of probabilities in different system states. The article first summarizes...
Journal Articles
Article Type: Research-Article
ASME J. Risk Uncertainty Part B. March 2022, 8(1): 011101.
Paper No: RISK-20-1115
Published Online: August 2, 2021
... sufficient because a target variable value often varies due to diverse sources of uncertainty. For instance, in the fused deposition modeling process, the inconsistent results of replications are associated with natural randomness, environmental condition, and noisy process parameters. The point value...
Journal Articles
Article Type: Research-Article
ASME J. Risk Uncertainty Part B. September 2020, 6(3): 031004.
Paper No: RISK-19-1081
Published Online: May 25, 2020
... boundary conditions, were considered for the uncertainty analysis. It is shown that, in each case, the interval values of the response parameters given by the universal gray number theory are consistent with the ranges of the input parameters, compared to those given by the interval analysis. It is also...
Journal Articles
Article Type: Research-Article
ASME J. Risk Uncertainty Part B. June 2020, 6(2): 021010.
Paper No: RISK-19-1023
Published Online: March 30, 2020
.... A dataset of the pin-on-disk test by ASTM-G99 standard is used for additional model validation. The rail system data are employed for validation of the model in the practical systems. Uncertainty is analyzed by Monte Carlo simulation to determine the variations of the predicted material loss. Finally...
Journal Articles
Article Type: Research-Article
ASME J. Risk Uncertainty Part B. December 2019, 5(4): 041005.
Paper No: RISK-18-1060
Published Online: September 25, 2019
.... In this work, evidence theory has been coupled with BN to address inconsistency, conflict and incompleteness in the expert opinions. It combines the acquired knowledge from various subjective sources, thereby rendering accuracy in probability estimation. Another source of uncertainty in BN is model uncertainty...
Journal Articles
Article Type: Research-Article
ASME J. Risk Uncertainty Part B. June 2019, 5(2): 020906.
Paper No: RISK-18-1065
Published Online: April 15, 2019
... of the vehicle. The proposed approach consists of two main elements, namely uncertainty modeling of traffic conditions and model-based reliability analysis. In the uncertainty modeling step, a recently developed Gaussian mixture copula (GMC) method is employed to accurately represent the uncertainty in the road...
Journal Articles
Article Type: Research-Article
ASME J. Risk Uncertainty Part B. December 2018, 4(4): 041005.
Paper No: RISK-17-1064
Published Online: April 30, 2018
...Arun Veeramany; James T. Woodward; Donald J. Hammerstrom Valuation of transactive energy (TE) systems should be supported by a structured and systematic approach to uncertainty identification, assessment, and treatment in the interest of risk-informed decision making. The proposed approach...
Journal Articles
Article Type: Research-Article
ASME J. Risk Uncertainty Part B. December 2018, 4(4): 041009.
Paper No: RISK-17-1095
Published Online: April 30, 2018
...Harshini Devathi; Sunetra Sarkar A novel uncertainty quantification routine in the genre of adaptive sparse grid stochastic collocation (SC) has been proposed in this study to investigate the propagation of parametric uncertainties in a stall flutter aeroelastic system. In a hypercube stochastic...
Journal Articles
Article Type: Research-Article
ASME J. Risk Uncertainty Part B. December 2018, 4(4): 041008.
Paper No: RISK-17-1088
Published Online: April 30, 2018
...Fazel Khayatian; Maryam MeshkinKiya; Piero Baraldi; Francesco Di Maio; Enrico Zio Optimal sizing of peak loads has proven to be an important factor affecting the overall energy consumption of heating ventilation and air-conditioning (HVAC) systems. Uncertainty quantification of peak loads enables...
Journal Articles
Article Type: Research-Article
ASME J. Risk Uncertainty Part B. December 2018, 4(4): 041006.
Paper No: RISK-17-1070
Published Online: April 30, 2018
... to the particular stress–strain curves used for the materials in the model. We desire to estimate or bound response variation when only a few stress–strain curve samples are available from material testing. Propagation of just a few samples will usually result in significantly underestimated response uncertainty...
Journal Articles
Article Type: Research-Article
ASME J. Risk Uncertainty Part B. December 2018, 4(4): 041002.
Paper No: RISK-17-1063
Published Online: April 18, 2018
... of learning BNs without discretizing the continuous variables or making assumptions about their conditional probability densities (CPDs). The applications of the learned BN to uncertainty quantification and model calibration are also investigated. The results of a mathematical example and an engineering...
Journal Articles
Article Type: Research-Article
ASME J. Risk Uncertainty Part B. September 2018, 4(3): 031006.
Paper No: RISK-16-1072
Published Online: March 2, 2018
... Uncertainty The history of systematic resilience study can be retrieved back to early 1960s by ecologists, who were interested in ecosystem stability. The ecosystem may be stabilized at more than one stable equilibrium. In contrast, resilience studied in engineering focuses on the system behavior near...
Journal Articles
Article Type: Research-Article
ASME J. Risk Uncertainty Part B. September 2018, 4(3): 031004.
Paper No: RISK-17-1007
Published Online: December 20, 2017
... with dozens of error sources at the part level. Structures Uncertainty 30 01 2017 07 10 2017 Manuscript received January 30, 2017; final manuscript received October 7, 2017; published online December 20, 2017. Assoc. Editor: Yan Wang. 1 Corresponding author. Copyright...
Journal Articles
Article Type: Research-Article
ASME J. Risk Uncertainty Part B. September 2018, 4(3): 031002.
Paper No: RISK-16-1020
Published Online: December 20, 2017
... Structural reliability Uncertainty Reliability is the ability that a component or system performs its intended function in routine circumstances for a given period of time [ 1 ]. For a system, we are interested in not only the reliability of its components, but also the system reliability. For many...
Journal Articles
Article Type: Research-Article
ASME J. Risk Uncertainty Part B. June 2018, 4(2): 021008.
Paper No: RISK-17-1011
Published Online: October 5, 2017
...Stefan Erschen; Fabian Duddeck; Matthias Gerdts; Markus Zimmermann In the early development phase of complex technical systems, uncertainties caused by unknown design restrictions must be considered. In order to avoid premature design decisions, sets of good designs, i.e., designs which satisfy all...
Journal Articles
Article Type: Research-Article
ASME J. Risk Uncertainty Part B. June 2018, 4(2): 021005.
Paper No: RISK-17-1026
Published Online: October 4, 2017
... of this information fusion model in fault diagnosis is beneficial in two aspects, diagnostic applicability and diagnostic accuracy. Additionally, this model can overcome the uncertainty of information and equipment to increase diagnostic accuracy. Two case studies are implemented by this information fusion model...
Journal Articles
Article Type: Research-Article
ASME J. Risk Uncertainty Part B. June 2018, 4(2): 021004.
Paper No: RISK-17-1025
Published Online: October 3, 2017
..., uncertainty is estimated by using the Monte Carlo simulation. It is observed that by increasing the crack length, the standard deviation (the measure of uncertainty) increases. Also, it is noted that the reduction in stress ratio has the similar effect. Then, stochastic crack growth model, proposed by Yang...
Journal Articles
Article Type: Research-Article
ASME J. Risk Uncertainty Part B. June 2018, 4(2): 021006.
Paper No: RISK-17-1044
Published Online: October 3, 2017
... MFs (or boundary lines). The advantage of the fuzzified VAC is that it does not suffer from the disadvantage of the original VAC and is thus more realistic and suitable for real-world applications. Generating the MFs for RFL consists of three steps. The first step involves uncertainty...
Journal Articles
Article Type: Research-Article
ASME J. Risk Uncertainty Part B. June 2018, 4(2): 021002.
Paper No: RISK-16-1110
Published Online: October 3, 2017
...Javad Sovizi; Rahul Rai; Venkat Krovi Loosely interconnected cooperative systems such as cable robots are particularly susceptible to uncertainty. Such uncertainty is exacerbated by addition of the base mobility to realize reconfigurability within the system. However, it also sets the ground...
Journal Articles
Article Type: Guest Editorial
ASME J. Risk Uncertainty Part B. March 2018, 4(1): 010301.
Paper No: RISK-17-1078
Published Online: September 7, 2017
...Yan Wang; Laura Swiler 07 07 2017 25 07 2017 Reliability based design Resilience Risk assessment Risk management Uncertainty The importance of uncertainty has been recognized in various modeling, simulation, and analysis applications, where inherent assumptions...