Applying Rough Set Theory to Detect and Diagnose Fault for Liquid Rocket Engine
Yanmei Wang · Computer and Modernization · 2006
By analyzing the characteristics of the liquid rocket engine and the rough set method,the application of rough set theory to data mining for the hotfiring test data of liquid rocket engine is presented.By investigating 4 groups of hot-firing test data of a certain engine,24 original attributions are reduced to 2 attributions,213 records are reduced to 5 or 6 records.All possible critical decisive combinations for fault detection and diagnosis of liquid rocket engine are obtained,fault detection and diagnosis for liquid rocket engine are implemented.