Proceedings of the 30th European Safety and Reliability Conference and 15th Probabilistic Safety Assessment and Management Conference最新文献_第6页

Optimal Part Flow in Maintenance Service Contracts of Gas Turbines 燃气轮机维修服务合同中的最优零件流程

Proceedings of the 30th European Safety and Reliability Conference and 15th Probabilistic Safety Assessment and Management Conference Pub Date : 1900-01-01 DOI: 10.3850/978-981-14-8593-0_3743-CD

L. Bellani, M. Compare, E. Zio, Marzia Sepe, F. Annunziata, Fausto Carlevaro

{"title":"Optimal Part Flow in Maintenance Service Contracts of Gas Turbines","authors":"L. Bellani, M. Compare, E. Zio, Marzia Sepe, F. Annunziata, Fausto Carlevaro","doi":"10.3850/978-981-14-8593-0_3743-CD","DOIUrl":"https://doi.org/10.3850/978-981-14-8593-0_3743-CD","url":null,"abstract":"IGT manufacturers offer maintenance service contracts that guarantee speciﬁc production rates. At every maintenance action (i.e., corrective or scheduled), capital parts are removed from the GTs and repaired at workshop, unless they are scrapped because they have reached their pre-ﬁxed maximum number of working hours. The repaired parts are put back at the warehouse for future use. The parts removed from the GTs are replaced by parts newly purchased or taken from the warehouse. This maintenance policy entails a part ﬂow, which is managed through decisions on both the removed parts (repair or scrap?) and the parts to be installed on the GT (parts new or taken from the warehouse?). Such decisions strongly impact the proﬁtability of the maintenance service contract and depend on many variables, e.g. remaining time up to the end of the contract, availability of spares, costs related to the repair and purchase actions, etc. Furthermore, in the dynamic of the part ﬂow, every decision conditions the successive ones, as it modiﬁes the warehouse composition. We formalize the part ﬂow problem as a Sequential Decision Problem and solve it by both integer linear programming framework and reinforcement learning, taking as reference a scaled-down case study derived from industrial practice. Final considerations are drawn about both approaches.","PeriodicalId":201963,"journal":{"name":"Proceedings of the 30th European Safety and Reliability Conference and 15th Probabilistic Safety Assessment and Management Conference","volume":"233 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132925395","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Structural Reliability of Liquid-filled Steel Tanks Subjected to Seismic Demands 钢液罐在地震作用下的结构可靠性研究

Proceedings of the 30th European Safety and Reliability Conference and 15th Probabilistic Safety Assessment and Management Conference Pub Date : 1900-01-01 DOI: 10.3850/978-981-14-8593-0_5113-CD

Daniel Moreno, K. V. Belivanis, Bret A. Tegeler

引用次数: 0

IRIS: A Novel Approach to Monitoring Risk in Safety Critical Plants IRIS:一种监测关键安全工厂风险的新方法

Proceedings of the 30th European Safety and Reliability Conference and 15th Probabilistic Safety Assessment and Management Conference Pub Date : 1900-01-01 DOI: 10.3850/978-981-14-8593-0_4030-CD

E. Calà, Guglielmo Carrubba, M. Compare, Alessio Martini, Roberto Mascherona, Maurizio Ricci, E. Zio

引用次数: 0

Utilizing Model-based Timing Analysis for Holistic Dependability Assessment of Unmanned Aerial Vehicles 基于模型时序分析的无人机整体可靠性评估

Proceedings of the 30th European Safety and Reliability Conference and 15th Probabilistic Safety Assessment and Management Conference Pub Date : 1900-01-01 DOI: 10.3850/978-981-14-8593-0_5757-CD

Mikael Steurer, Thomas Mutzke, A. Morozov, K. Janschek, Klaus-Peter Neitzke

引用次数: 0

Safety Approval Process for Guided Transportation 导览运输安全审批程序

Proceedings of the 30th European Safety and Reliability Conference and 15th Probabilistic Safety Assessment and Management Conference Pub Date : 1900-01-01 DOI: 10.3850/978-981-14-8593-0_3521-CD

Robert Bains, T. Myklebust, N. Lyngby

引用次数: 0

Graphical Models for Missing Data Analysis in Reliability 可靠性缺失数据分析的图形模型

Proceedings of the 30th European Safety and Reliability Conference and 15th Probabilistic Safety Assessment and Management Conference Pub Date : 1900-01-01 DOI: 10.3850/978-981-14-8593-0_5686-CD

Vimal, S. Chaturvedi

引用次数: 0

CFD Modelling of Pressurized Gas Releases: Sensitivity Analysis of Driving Parameters 增压气体释放的CFD建模:驱动参数的敏感性分析

Proceedings of the 30th European Safety and Reliability Conference and 15th Probabilistic Safety Assessment and Management Conference Pub Date : 1900-01-01 DOI: 10.3850/978-981-14-8593-0_4431-CD

A. Moscatello, Gianmario Ledda, A. C. Uggenti, R. Gerboni, A. Carpignano

引用次数: 1

Paraconsistent Annotated Logic (PAL) Applied in the Decision-Making Process of Maintenance Policy for Kaplan Turbine 副一致标注逻辑(PAL)在卡普兰汽轮机维修策略决策中的应用

Proceedings of the 30th European Safety and Reliability Conference and 15th Probabilistic Safety Assessment and Management Conference Pub Date : 1900-01-01 DOI: 10.3850/978-981-14-8593-0_3818-CD

M. M. Bellinello, G. Souza, C. A. Murad, A. C. Netto, Arthur H. A. Melani, Miguel Ângelo de Carvalho, Marcelo Rodrigues

引用次数: 1

Modelling Liquid Hydrogen BLEVEs: A Comparative Assessment with Hydrocarbon Fuels 模拟液氢BLEVEs:与碳氢化合物燃料的比较评估

Proceedings of the 30th European Safety and Reliability Conference and 15th Probabilistic Safety Assessment and Management Conference Pub Date : 1900-01-01 DOI: 10.3850/978-981-14-8593-0_3982-CD

F. Ustolin, E. Salzano, G. Landucci, N. Paltrinieri

{"title":"Modelling Liquid Hydrogen BLEVEs: A Comparative Assessment with Hydrocarbon Fuels","authors":"F. Ustolin, E. Salzano, G. Landucci, N. Paltrinieri","doi":"10.3850/978-981-14-8593-0_3982-CD","DOIUrl":"https://doi.org/10.3850/978-981-14-8593-0_3982-CD","url":null,"abstract":"Hydrogen is one of the best candidates in replacing traditional hydrocarbon fuels to decrease environmental pollution and global warming. Its consumption is expected to grow in the forthcoming years. Hence its liquefaction becomes necessary to store and transport large amounts of this fuel. However, a liquid hydrogen (LH2) boiling liquid expanding vapor explosion (BLEVE) is a potential accident scenario for these technologies, despite the fact it may be considered as atypical. A BLEVE is a physical explosion resulting from the catastrophic rupture of a tank of a liquid at a temperature above its boiling point at atmospheric pressure. Its consequences are the pressure wave, the missiles, which are the tank debris thrown away by the explosion, and a fireball if the substance is flammable and an ignition source is present. The aim of this paper is to estimate the consequences associated with BLEVEs from LH2 storage and transport systems by means of integral models. Both ideal and real gas behavior models were considered to calculate the explosion overpressure. The physical models were employed to analyze the consequences of analogous fuel BLEVEs, in order to provide a comparative assessment of the results. BLEVE experimental results for LH2 are not available in literature yet. For this reason, the developed models will be validated during the SH2IFT project in which LH2 BLEVE experimental tests will be conducted.","PeriodicalId":201963,"journal":{"name":"Proceedings of the 30th European Safety and Reliability Conference and 15th Probabilistic Safety Assessment and Management Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132452835","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Development of Drought Risk in the Selected Territory 选定地区干旱风险的发展

Proceedings of the 30th European Safety and Reliability Conference and 15th Probabilistic Safety Assessment and Management Conference Pub Date : 1900-01-01 DOI: 10.3850/978-981-14-8593-0_3727-CD

A. Oulehlová, Leona Karaskova, P. Kincl

引用次数: 0