Using General Morphological Analysis to Tackle Uncertainty at the Design Phase for a Safety Critical Application
The gas turbine engine internal air system provides cooling and sealing air to a series of critical subsystems and components such as high pressure gas turbine blades,as well as controlling the thrust load on the turbine and compressor spool assembly.Many potential variations for the internal air system are possible,depending on the requirement,expertise and command of intellectual property.Some subsystems,such as rim seals,pre-swirl systems,and rotating cavities have been the subject of extensive development and analysis leading to robust design solutions.Nevertheless there remains scope for further consideration of the overall system design,and this paper explores the use of a decision analysis tool called general morphological analysis applied to the internal air system.General morphological analysis provides an effective means for tackling issues where there is uncertainty,as is the case with many design scenarios,including the internal air system,with some specific parameters and information not available until later in the design phase,after the key geometry has been defined.The problem space comprising nine principal parameters,and a cross consistency matrix which allows identification of compatible and incompatible states are presented.
Internal air system secondary optimization design gas turbine engine
P.R.N. Childs B. Garvey
Imperial College London,South Kensington,SW7 2AZ,UK
国际会议
The 5th International Symposium on Jet Propulsion and Power Engineering(第五届喷气推进与动力工程国际会议)
北京
英文
1-8
2014-09-15（万方平台首次上网日期，不代表论文的发表时间）