Engineering, Industrial

Article Engineering, Industrial

A dynamic Bayesian network based reliability assessment method for short-term multi-round situation awareness considering round dependencies

Qidong You, Jianbin Guo, Shengkui Zeng, Haiyang Che

Summary: During abnormal situations, situation awareness (SA) plays a critical role in ensuring system safety. This study focuses on short-term multi-round SA (STMR-SA) and examines the impact of anchoring effect (AE) and confirmation bias (CB) on STMR-SA errors. A novel reliability assessment method is proposed, considering the round dependencies caused by AE and CB. The method is demonstrated through a case study on the Boeing 737-8 (MAX) accident, showing that improvement measures can enhance STMR-SA reliability and system safety.

RELIABILITY ENGINEERING & SYSTEM SAFETY (2024)

Article Engineering, Industrial

Analysis of variable system cost and maintenance strategy in life cycle considering different failure modes

Hongyan Dui, Yulu Zhang, Guanghan Bai

Summary: This paper studies the variable system cost methodology in life cycle and develops maintenance strategies by identifying failure modes to improve system reliability. The effectiveness of the proposed method is demonstrated through the development of selection schemes and a case study comparison.

RELIABILITY ENGINEERING & SYSTEM SAFETY (2024)

Article Engineering, Industrial

Reliability analysis and redundancy design of satellite communication system based on a novel Bayesian environmental importance

Zhiwei Chen, Hao Zhang, Xinyue Wang, Jinling Yang, Hongyan Dui

Summary: This paper proposes a method to improve the reliability of satellite communication systems by using Markov Bayesian Networks and redundancy design strategies. It introduces a Bayesian environmental importance measure that considers the unique attributes of the space environment to verify the significance of subsystems. Furthermore, a multi-objective particle swarm optimization algorithm is employed to solve the optimal number of redundancies for critical subsystems.

RELIABILITY ENGINEERING & SYSTEM SAFETY (2024)

Article Computer Science, Interdisciplinary Applications

An asynchronous parallel benders decomposition method for stochastic network design problems

Ragheb Rahmaniani, Teodor Gabriel Crainic, Michel Gendreau, Walter Rei

Summary: Benders decomposition (BD) is a popular solution algorithm for stochastic integer programs. However, existing parallelization methods often suffer from inefficiencies. This paper proposes an asynchronous parallel BD method and demonstrates its effectiveness through numerical studies and performance enhancement strategies.

COMPUTERS & OPERATIONS RESEARCH (2024)

Article Engineering, Industrial

Broad zero-shot diagnosis for rotating machinery with untrained compound faults

Chenyang Ma, Xianzhi Wang, Yongbo Li, Zhiqiang Cai

Summary: Compound fault diagnosis is crucial for the reliability and security of manufacturing equipment. Existing methods mainly focus on untrained compound faults, neglecting more common single faults in the test set. To address these issues, a novel broad zero-shot diagnosis method (BZSD) is proposed, which can identify both single faults and untrained compound faults, improving diagnostic accuracy.

RELIABILITY ENGINEERING & SYSTEM SAFETY (2024)

Article Engineering, Industrial

Risk analysis for hazardous chemical vehicle-bridge transportation system: A dynamic Bayesian network model incorporating vehicle dynamics

Jian Guo, Kaijiang Ma

Summary: This study aims to analyze the risk of transporting hazardous chemicals on sea-crossing bridges using a dynamic Bayesian network (DBN) model. The study found that vehicle failure has the highest impact on the transportation system and should be given more attention. Additionally, wind sensitivity to the sea-crossing bridge transportation system is significant and cannot be ignored.

RELIABILITY ENGINEERING & SYSTEM SAFETY (2024)

Article Engineering, Industrial

A probabilistic-driven framework for enhanced corrosion estimation of ship structural components

Krzysztof Woloszyk, Yordan Garbatov

Summary: This paper proposes a probabilistic-driven framework for enhanced corrosion estimation of ship structural components using Bayesian inference and limited measurement data. The framework incorporates measurement uncertainty and provides confidence intervals for the mean value and standard deviation.

RELIABILITY ENGINEERING & SYSTEM SAFETY (2024)

Article Engineering, Industrial

Improved pool fire-initiated domino effect assessment in atmospheric tank farms using structural response

Md. Tanjin Amin, Giordano Emrys Scarponi, Valerio Cozzani, Faisal Khan

Summary: This article examines the effectiveness and accuracy of threshold-based and probit-based methods in assessing domino effects. The results indicate that threshold-based methods are not suitable for quantitative assessment, and there are limitations in probit-based methods for time-dependent domino effect assessment. By utilizing site-specific structural response data and data analytics, a new improved time to failure prediction model is proposed, which demonstrates better performance compared to existing models.

RELIABILITY ENGINEERING & SYSTEM SAFETY (2024)

Article Engineering, Industrial

Characterization of biases and their impact on the integrity of a risk study

Shital Thekdi, Terje Aven

Summary: This paper examines biases in risk studies and investigates how to identify and address them to ensure high-quality risk analysis. By considering biases related to systematic error, event inclusion, models, and cognitive factors, the paper explores their influence on risk characterization. The insights gained from this exploration can be valuable to risk analysts, policymakers, and other stakeholders involved in risk study applications.

SAFETY SCIENCE (2024)

Article Engineering, Industrial

A longitudinal study on the impact of occupational health and safety practices on employee productivity

Maryam Lari

Summary: Occupational health and safety (OHS) are crucial for employee well-being and productivity. This study examines the impact of OHS practices on employee productivity in a UAE Fire and Security company, finding that OHS interventions can enhance workplace ambiance and significantly boost employee productivity.

SAFETY SCIENCE (2024)

Article Computer Science, Interdisciplinary Applications

Unmanned surface vehicles (USVs) scheduling method by a bi-level mission planning and path control

Xinghai Guo, Netirith Narthsirinth, Weidan Zhang, Yuzhen Hu

Summary: This study proposes a bi-level scheduling method that utilizes unmanned surface vehicles for container transportation. By formulating mission decision and path control models, efficient container transshipment and path planning are achieved. Experimental results demonstrate the effectiveness of the proposed approach in guiding unmanned surface vehicles to complete container transshipment tasks.

COMPUTERS & OPERATIONS RESEARCH (2024)

Article Engineering, Industrial

Deep learning-based semantic segmentation of machinable volumes for cyber manufacturing service

Xiaoliang Yan, Reed Williams, Elena Arvanitis, Shreyes Melkote

Summary: This paper extends prior work by developing a semantic segmentation approach for machinable volume decomposition using pre-trained generative process capability models, providing manufacturability feedback and labels of candidate machining operations for query 3D parts.

JOURNAL OF MANUFACTURING SYSTEMS (2024)

Article Engineering, Industrial

Optimal borehole placement for the design of rectangular shallow foundation systems under undrained soil conditions: A stochastic framework

Danko J. Jerez, M. Chwala, Hector A. Jensen, Michael Beer

Summary: This paper proposes a framework for designing optimal borehole configurations for shallow foundation systems under undrained soil conditions. It minimizes the standard deviations of the bearing capacity to ensure performance. The method adopts a random failure mechanism for evaluating random bearing capacity and provides sensitivity information of the selected performance measure.

RELIABILITY ENGINEERING & SYSTEM SAFETY (2024)

Article Engineering, Industrial

A physics-informed autoencoder for system health state assessment based on energy-oriented system performance

Xucong Huang, Zhaoqin Peng, Diyin Tang, Juan Chen, Enrico Zio, Zaiping Zheng

Summary: Health Indicators (HIs) are widely used for health state assessments. However, obtaining the true value of HIs with physical meaning is difficult in many cases. Therefore, this study proposes a physics-informed autoencoder that combines a physics-based model with deep learning approaches to construct HIs effectively. The proposed framework redefines the conventional HI construction process by mapping sensor readings to a degradation-represented latent space using a deep learning model, and then reconstructing the sensor readings using a physics-based model.

RELIABILITY ENGINEERING & SYSTEM SAFETY (2024)

Article Engineering, Industrial

Modeling offshore wind farm disturbances and maintenance service responses within the scope of resilience

Arto Niemi, Bartosz Skobiej, Nikolai Kulev, Frank Sill Torres

Summary: Offshore wind farms are critical infrastructures for energy production, and their protection and resilience are gaining increased attention. This paper models failures in offshore wind farms and studies how maintenance services can sustain or recover operations under different stressors. The results show various challenges to operations, which can be used to test and define requirements for future countermeasures to improve resilience.

RELIABILITY ENGINEERING & SYSTEM SAFETY (2024)

Article Engineering, Industrial

A probabilistic framework for post-disaster recovery modeling of buildings and electric power networks in developing countries

Eyitayo A. Opabola, Carmine Galasso

Summary: Post-disaster recovery is a significant challenge, especially in developing countries. Various technical, environmental, socioeconomic, political, and cultural factors substantially influence post-disaster recovery. This study introduces a probabilistic framework for modeling the post-disaster recovery of buildings and electric power networks (EPNs) in developing countries.

RELIABILITY ENGINEERING & SYSTEM SAFETY (2024)

Article Engineering, Industrial

Multi-agent deep reinforcement learning based decision support model for resilient community post-hazard recovery

Sen Yang, Yi Zhang, Xinzheng Lu, Wei Guo, Huiquan Miao

Summary: This study proposes a novel decision support model that integrates graph theory and neural network to determine optimal restoration policies for maximizing disaster resilience. The model utilizes stochastic scheduling and deep reinforcement learning algorithm to efficiently make repair decisions, and demonstrates higher performance and computational efficiency in a case study.

RELIABILITY ENGINEERING & SYSTEM SAFETY (2024)

Article Engineering, Industrial

Uncertainty quantification in low-probability response estimation using sliced inverse regression and polynomial chaos expansion

Phong T. T. Nguyen, Lance Manuel

Summary: In this study, the combination of sliced inverse regression (SIR) and polynomial chaos expansion is explored for predicting the long-term extreme response of offshore structures. By reducing the dimensionality of the problem, this method can alleviate the curse of dimensionality while improving efficiency and accuracy.

RELIABILITY ENGINEERING & SYSTEM SAFETY (2024)

Article Engineering, Industrial

The study of self-organised behaviours and movement pattern of pedestrians during fire evacuations: virtual experiments and survey

Meng Shi, Zhichao Zhang, Wenke Zhang, Yi Ma, Hanbo Li, Eric Wai Ming Lee

Summary: This study investigates pedestrian behaviours and evacuation processes in both fire and non-fire conditions using Minecraft. The results demonstrate the potential of Minecraft for realistically simulating evacuation processes, as the behaviours and flow patterns of pedestrians in virtual experiments fit well with real-life experiments. The study also shows that pedestrians exhibit fire avoidance behaviours and orderly queuing during a fire emergency, resulting in faster evacuation.

SAFETY SCIENCE (2024)

Article Engineering, Industrial

Optimal sensor placement for permanent magnet synchronous motor condition monitoring using a digital twin-assisted fault diagnosis approach

Sara Kohtz, Junhan Zhao, Anabel Renteria, Anand Lalwani, Yanwen Xu, Xiaolong Zhang, Kiruba Sivasubramaniam Haran, Debbie Senesky, Pingfeng Wang

Summary: This paper presents a data-driven reliability-based design optimization method for sensor placement and fault detection of a permanent magnet synchronous motor (PMSM). The method utilizes a digital twin model for fault simulation and achieves optimized sensor placement and fault classification through distance clustering and genetic algorithms, demonstrating high accuracy and computational efficiency.

RELIABILITY ENGINEERING & SYSTEM SAFETY (2024)