Pitot sensor air flow measurement accuracy: Causal modelling and failure risk analysis
| Autor: | Nidhal Rezg, Jérémie Schutz, Wajih Ezzeddine |
|---|---|
| Přispěvatelé: | Laboratoire de Génie Informatique, de Production et de Maintenance (LGIPM), Université de Lorraine (UL) |
| Rok vydání: | 2019 |
| Předmět: |
Hazard (logic)
Accuracy and precision Computer science 0207 environmental engineering Pitot tube 02 engineering and technology 01 natural sciences Flow measurement [SPI.AUTO]Engineering Sciences [physics]/Automatic Computer Science Applications law.invention Reliability engineering 010309 optics law Modeling and Simulation 0103 physical sciences Flow coefficient Electrical and Electronic Engineering 020701 environmental engineering Focus (optics) Instrumentation ComputingMilieux_MISCELLANEOUS Reliability (statistics) Causal model |
| Zdroj: | Flow Measurement and Instrumentation Flow Measurement and Instrumentation, Elsevier, 2018, 65, pp.7-15. ⟨10.1016/j.flowmeasinst.2018.10.021⟩ |
| ISSN: | 0955-5986 |
| DOI: | 10.1016/j.flowmeasinst.2018.10.021 |
| Popis: | Industrial sensors efficiency is commonly determined by the ability to provide accurate indications during a mission. In addition, several techniques and methods are incorporated to increase sensors measurement accuracy. These examinations are classified into experimental and theoretical classes. Experimental examinations focus on determining the flow coefficient variation, which results from the installation effect and flow characteristics. Theoretical proposals deal principally with formulation of the instrument reliability function. These formulations integrate different parameters which affect the sensor measurement accuracy during a given mission. This paper discusses the failure risk and effect analysis for the Pitot sensors system measurement accuracy during a given mission. In addition, a set of factors is used to determine the causal diagram and to model the corresponding hazard function. These factors are subject to statistical analysis in the second part of this paper. The current study is also driven by a practical need to well manage aeronautical problems linked to Pitot sensors system malfunctioning during a flight. |
| Databáze: | OpenAIRE |
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