Analysis and ldentification of Fault of Rub-lmpact between Rotor and Stator

摘要

According to the background of the rub-impact faults of aerial engines and industrial turbines, two kinds of test rigs, on the base of the dynamics model, are established to study the rub-impact faults between ro- tor and stator with free supports. The orbit of the vibration of rotor displacement is respectively examined on the four impact conditions, which are the normal state with no impact, the early sharp impact statement, the semi- sharp impact statement and the terminal blunt impact statement.