FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W765833362> ?p ?o ?g. }

• W765833362 abstract "Reducing the direct operating-costs is now crucial in order to ensurecompetitive advantages for airlines and manufacturers, and so effectiveadvanced engine-condition monitoring methodologies are necessary. Hencegas-path diagnostics and prognostics methods are reviewed and thespecifications for such effective tools deduced, together with their pertinentfuture prospects.First, the considerable value that a preliminary observability study adds to thediagnostics process was recognised. A secure procedure has been devised: itis capable of (i) the identification of the severity of correlations between any twoof the available measurements, as well as the correlations between any two ofthe component changes, (ii) the identification of more complex correlations thatinvolve more than two changes in performance parameters, and (iii) thequantification of the quality of the system observability through a pertinentparameter. This enables comparisons among a significant number ofmeasurement set selections.The core of the research is a novel gas-path diagnostics (GPD) method thatuses fuzzy logic in order to provide secure quantification of the gas-pathcomponent faults. A fuzzy diagnostics system was set up for the Rolls-RoyceTrent 800 engine that relies on an extensive statement of fuzzy rules generatedusing an engine model to achieve a quantitative solution through a non-linearapproach, which is competent to achieve (i) SFI (single fault isolation) in thepresence of noisy data, (ii) tuning over a known global deterioration level for allthe performance parameters (baseline) computed for the previous flight, (iii)partial MFI (multiple fault isolation) with up to 2 degraded components (i.e. 4performance parameters) considerably faulty at the same time, (iv) SFI whileisolating systematic errors in the measurements (biasses). A bias-tolerantsystem was devised by means of the NOT logical operator and a newformulation of the fuzzy rules that includes the location of the bias.An innovative prognostics framework was devised, which uses ARIMA modelsand regression models respectively for short and long term investigations, tocompute forecasts and the associated prediction intervals, which are aimed atassisting the prognostics decision-making process. This is strictly related to thediverse business intentions: in this study safety and economic relatedapplications are investigated. For example, the optimisation of the TBO (timebetween overhauls) considering maintenance cost and additional fuel cost dueto the deterioration is studied and the potential cost savings for the operatorshighlighted.HMP 1.1 for performance analysis was developed: it is a health-monitoring andprognosticsframework consisting of three modules that perform respectivelyobservability study, gas-path diagnostics and prognostics. The substantialbenefits that can be achieved with such a tool, relative to the enhancedmaintenance planning and improved mission scheduling, are discussed in thethesis…" @default.
• W765833362 created "2016-06-24" @default.
• W765833362 creator A5078493936 @default.
• W765833362 date "2004-07-01" @default.
• W765833362 modified "2023-09-23" @default.
• W765833362 title "Gas-path diagnostics and prognostics for aero-engines using fuzzy logic and time series analysis" @default.
• W765833362 hasPublicationYear "2004" @default.
• W765833362 type Work @default.
• W765833362 sameAs 765833362 @default.
• W765833362 citedByCount "2" @default.
• W765833362 countsByYear W7658333622014 @default.
• W765833362 countsByYear W7658333622018 @default.
• W765833362 crossrefType "dissertation" @default.
• W765833362 hasAuthorship W765833362A5078493936 @default.
• W765833362 hasConcept C111919701 @default.
• W765833362 hasConcept C116834253 @default.
• W765833362 hasConcept C121332964 @default.
• W765833362 hasConcept C124101348 @default.
• W765833362 hasConcept C127313418 @default.
• W765833362 hasConcept C127413603 @default.
• W765833362 hasConcept C129364497 @default.
• W765833362 hasConcept C133731056 @default.
• W765833362 hasConcept C152745839 @default.
• W765833362 hasConcept C154945302 @default.
• W765833362 hasConcept C165205528 @default.
• W765833362 hasConcept C168167062 @default.
• W765833362 hasConcept C172707124 @default.
• W765833362 hasConcept C175551986 @default.
• W765833362 hasConcept C177264268 @default.
• W765833362 hasConcept C199360897 @default.
• W765833362 hasConcept C200601418 @default.
• W765833362 hasConcept C2777735758 @default.
• W765833362 hasConcept C28826006 @default.
• W765833362 hasConcept C33923547 @default.
• W765833362 hasConcept C36299963 @default.
• W765833362 hasConcept C41008148 @default.
• W765833362 hasConcept C58166 @default.
• W765833362 hasConcept C59822182 @default.
• W765833362 hasConcept C86803240 @default.
• W765833362 hasConcept C97355855 @default.
• W765833362 hasConcept C98045186 @default.
• W765833362 hasConceptScore W765833362C111919701 @default.
• W765833362 hasConceptScore W765833362C116834253 @default.
• W765833362 hasConceptScore W765833362C121332964 @default.
• W765833362 hasConceptScore W765833362C124101348 @default.
• W765833362 hasConceptScore W765833362C127313418 @default.
• W765833362 hasConceptScore W765833362C127413603 @default.
• W765833362 hasConceptScore W765833362C129364497 @default.
• W765833362 hasConceptScore W765833362C133731056 @default.
• W765833362 hasConceptScore W765833362C152745839 @default.
• W765833362 hasConceptScore W765833362C154945302 @default.
• W765833362 hasConceptScore W765833362C165205528 @default.
• W765833362 hasConceptScore W765833362C168167062 @default.
• W765833362 hasConceptScore W765833362C172707124 @default.
• W765833362 hasConceptScore W765833362C175551986 @default.
• W765833362 hasConceptScore W765833362C177264268 @default.
• W765833362 hasConceptScore W765833362C199360897 @default.
• W765833362 hasConceptScore W765833362C200601418 @default.
• W765833362 hasConceptScore W765833362C2777735758 @default.
• W765833362 hasConceptScore W765833362C28826006 @default.
• W765833362 hasConceptScore W765833362C33923547 @default.
• W765833362 hasConceptScore W765833362C36299963 @default.
• W765833362 hasConceptScore W765833362C41008148 @default.
• W765833362 hasConceptScore W765833362C58166 @default.
• W765833362 hasConceptScore W765833362C59822182 @default.
• W765833362 hasConceptScore W765833362C86803240 @default.
• W765833362 hasConceptScore W765833362C97355855 @default.
• W765833362 hasConceptScore W765833362C98045186 @default.
• W765833362 hasLocation W7658333621 @default.
• W765833362 hasOpenAccess W765833362 @default.
• W765833362 hasPrimaryLocation W7658333621 @default.
• W765833362 hasRelatedWork W1441539266 @default.
• W765833362 hasRelatedWork W152354284 @default.
• W765833362 hasRelatedWork W1987170563 @default.
• W765833362 hasRelatedWork W2007187593 @default.
• W765833362 hasRelatedWork W2028527870 @default.
• W765833362 hasRelatedWork W2038445170 @default.
• W765833362 hasRelatedWork W2047646373 @default.
• W765833362 hasRelatedWork W2071867004 @default.
• W765833362 hasRelatedWork W2076542464 @default.
• W765833362 hasRelatedWork W2082805068 @default.
• W765833362 hasRelatedWork W2085363876 @default.
• W765833362 hasRelatedWork W2152564 @default.
• W765833362 hasRelatedWork W2575222212 @default.
• W765833362 hasRelatedWork W2737886213 @default.
• W765833362 hasRelatedWork W2913351631 @default.
• W765833362 hasRelatedWork W2919567172 @default.
• W765833362 hasRelatedWork W3025329269 @default.
• W765833362 hasRelatedWork W3044892719 @default.
• W765833362 hasRelatedWork W790754785 @default.
• W765833362 hasRelatedWork W2175379971 @default.
• W765833362 isParatext "false" @default.
• W765833362 isRetracted "false" @default.
• W765833362 magId "765833362" @default.
• W765833362 workType "dissertation" @default.