Transient Response of a Simulated Aeroengine with a Fusing Structure during a Fan-Blade Out Event. (11th October 2021)

• Record Type: Journal Article
• Authors: Ma, Chi; Chen, Wei; Han, Jiaqi; Liu, Lulu; Zhao, Zhenhua; Luo, Gang
• Other Names: Du Juan Academic Editor.
• Is Part Of: International journal of aerospace engineering. Volume 2021(2021)
• Publication Date: 2021-10-11
• Subjects: Aerospace engineering -- Periodicals; 629.105
• DOI: 10.1155/2021/8357380
• Languages: English
• ISSNs: 1687-5966

Abstract

Abstract : A fan-blade out (FBO) event may cause complex vibrations in an aeroengine. A fusing structure protects the structural integrity of the whole aeroengine after an extreme accident, such as a blade-loss event. In this paper, we investigate not only the transient and steady responses of a simulated aeroengine model with a fusing structure after an FBO event but also the changes made to the model because of the fusing structure. Our simulated model of an aeroengine includes two rotors, bearings, and a casing. The results for the dynamic response of the simulated model show that the fusing structure can reduce the steady-state response and the impact load on the support bearings in the rotor system. The rubbing impact between the blades and casing was accounted for. A fast method for calculating the response of fused structures was developed, which may be useful when designing the stiffness of the fusing structure.