Research on Anti-flutter Processing of Aeroengine Casing

Abstract

Due to the thin and rigid wall of aeroengine casing, it is easy to reduce the machining accuracy for the vibration of machine tools and cutting tools. Therefore, this paper designed an auxiliary fixture that can suppress such vibration. According to the vibration absorption principle of the tuned mass damper, this fixture is designed to transfer the vibration energy of the casing to the auxiliary fixture so as to reduce the vibration of the casing itself. According to Ansy’s work bench analysis, this fixture can significantly reduce the vibration of the casing. The results show that the maximum vibration amplitude of the casing is reduced by 60%, and the average vibration amplitude is also significantly reduced. The auxiliary fixture has many advantages such as simple installation, simple disassembly and installation, strong expansibility and so on.