【作者】 王仲生；

【Author】 Wang Zhongsheng (School of Aeronautics Northwest Polytechnic University Xi’an 710072 China)

【机构】 西北工业大学航空学院；

【摘要】 在对飞机发动机转子早期裂纹产生机理进行分析的基础上,提出了利用Morlet组合小波进行消噪和利用量子技术对早期裂纹特征信号进行快速提取与识别的方法,并对早期裂纹自愈及其实现进行了分析和研究。文中对Morlet组合小波的构造、量子早期裂纹特征提取和识别过程、位错抑制和自愈、转子表面和内部裂纹的自愈方法及其实现等进行了分析和研究,为防止转子裂纹扩展、提高发动机转子运行的安全性和可靠性提供了一种新的技术途经,具有重要的理论和工程应用价值。更多还原

【Abstract】 In order to increase the safety of aero-engine rotor,we put forward a mew method that the early crack fault features can be extracted fast,and crack can be identified and it can be recovered.It is based on analysis of the early crack mechanism,and it combines the Morlet wavelet with the quantum technique.In this paper,the structure of combined Morlet wavelet,the feature extraction of early crack of aero-engine rotor and fault identification,the restraint of dislocation and self-recovery,the self-recovery technologies of rotor surface crack and in the inner crack are researched.This method provides a new technical path to increase the safety of aero-engine rotor and it has important values in engineering application.更多还原