Match!
Reliability Engineering & System Safety
IF
4.04
Papers
5502
Papers 5644
1 page of 565 pages (5,644 results)
Newest
Abstract The reliability of a starter-generator in transport aircraft was assessed. Using the process of reliability-centered maintenance (RCM), necessary decisions were made not only to satisfy the reliability requirement but also to reduce the maintenance load. Failure data have indicated that the life of a starter-generator is limited by the reliability of a bearing. The degradation of the bearing was represented by a dynamic Bayesian network (DBN). Parameters were learned by using the EM alg...
#1Kevin Vanslette (MIT: Massachusetts Institute of Technology)H-Index: 1
#2Tony Tohme (MIT: Massachusetts Institute of Technology)
Last.Kamal Youcef-Toumi (MIT: Massachusetts Institute of Technology)H-Index: 28
view all 0 authors...
Abstract We construct and propose the “Bayesian Validation Metric” (BVM) as a general model validation and testing tool. We find the BVM to be capable of representing all of the standard validation metrics (square error, reliability, probability of agreement, frequentist, area, probability density comparison, statistical hypothesis testing, and Bayesian model testing) as special cases and find that it can be used to improve, generalize, or further quantify their uncertainties. Thus, the BVM allo...
#1Thomas Ying-Jeh Chen (UM: University of Michigan)H-Index: 1
#2Connor Riley (Georgia Institute of Technology)
Last.Seth D. Guikema (UM: University of Michigan)H-Index: 25
view all 0 authors...
Abstract Maintaining an aging network is a challenge for many water utilities due to limited budgets and uncertainty surrounding the physical condition of buried pipeline assets. The deployment of robotic inspections provides high quality data, but these platforms have limited use due to cost and operational constraints. To facilitate cost-efficient inspections, operators need to identify high-risk assets while accounting for the effectiveness of the tools at hand. This paper addresses inspectio...
#1Taotao Zhou (UMD: University of Maryland, College Park)H-Index: 2
#2Enrique López Droguett (UMD: University of Maryland, College Park)H-Index: 5
Last.Mohammad Modarres (UMD: University of Maryland, College Park)H-Index: 19
view all 0 authors...
Abstract This paper discusses component age-related degradation and failure initiated from a shared cause and coupling factor (or mechanism) and the likelihood of the resulting common cause failure (CCF). For these components a CCF model that includes the impacts of any maintenance-related renewal is proposed. Limitations and gaps in the state-of-the-art parametric CCF models for properly handling impacts of shared causes leading to accelerated degradation and aging have been discussed. The prop...
#1Guillermo Alcantara-Jiménez (Universidad Anáhuac México Norte)
#2Julio B. Clempner (IPN: Instituto Politécnico Nacional)H-Index: 10
Abstract Existing applications of Stackelberg Security Games (SSGs) have make use of Reinforcement Learning (RL) approaches to learn and adapt defenders-attackers behavior. The learning process for defenders-attackers is represented by randomized strategies for the defenders applied against adversarial strategies of the attackers, which acquire feedback on their strategies observing the target that was defended-attacked. However, must of the existing SSGs RL models feature strong assumptions inc...
#1Oscar J. Ramírez Olivar (University of Los Andes)
#2Santiago Zuluaga Mayorga (University of Los Andes)
Last.Ernesto Salzano (UNIBO: University of Bologna)H-Index: 25
view all 0 authors...
Abstract The impact of hurricanes, tornados, severe storms, or more in general extreme winds can damage the equipment of industrial plants, leading to the loss of containment of hazardous material from the damaged structures, which in turn can pollute or evolve to catastrophic scenarios involving fires or explosions. This type of accidents is known as Natech (Natural hazard triggering technological accident). Among natural events, extreme winds can affect atmospheric storage tanks, due to their ...
Abstract The safe operation of a space station relies on a large amount of on-orbit maintenance. On-orbit maintenance task complexity (OOMTC) plays an important role in maintenance processes, maintenance program assessments, astronaut training and scheduling, and space station maintainability design. However, only a few studies involve on-orbit maintenance complexity assessments. We proposed an OOMTC assessments model based on graph entropy. The model framework consisted of two aspects: inherent...
Abstract Credibly assessing the resilience of energy infrastructure in the face of natural disasters is a salient concern facing researchers, government officials, and community members. Here, we explore the influence of the spatial distribution of disruptions due to hurricanes and other natural hazards on the resilience of power distribution systems. We find that incorporating information about the spatial distribution of disaster impacts has significant implications for estimating infrastructu...
#1Alessio Misuri (UNIBO: University of Bologna)H-Index: 1
#2Gabriele Landucci (UniPi: University of Pisa)H-Index: 19
Last.Valerio Cozzani (UNIBO: University of Bologna)H-Index: 40
view all 0 authors...
ABSTRACT The impact of natural hazards on chemical and process facilities may lead to catastrophic technological accidents defined as Natech events. In the present study, a performance assessment of safety barriers during extreme natural events as floods and earthquakes was carried out. Assessing the performance of safety barriers during such complex scenarios is a key issue to identify the final consequences and the evolution of Natech events. Due to the scarcity of available data, an anonymous...
#1Hui Wu (THU: Tsinghua University)
#2Yan-Fu Li (THU: Tsinghua University)H-Index: 23
Last.Christophe Bérenguer (UGA: University of Grenoble)H-Index: 26
view all 3 authors...
Abstract In many cases, the safety and the reliability of a warm standby system heavily rely on the successful activation and the subsequent operation of its standby components. Optimal inspection and maintenance schedule is one of the most common but essential activities in the real world applications to manage standbys effectively and efficiently. In this paper, we propose a novel state-based method by incorporating inspection activities into multiphase Markov process to model the dynamic beha...
12345678910