公开(公告)号：US20130197747A1

公开(公告)日：2013-08-01

申请号：US13754186

申请日：2013-01-30

Applicant: SNECMA

Inventor： David TOURIN ,  Valerio Gerez ,  Geoffroy Nicq

IPC: B64D45/00

CPC classification number: B64D45/00 ,  F01D21/003 ,  F01D21/04 ,  F02C7/04 ,  F05D2260/80 ,  Y02T50/671

Abstract: The invention relates to a method and a system for detecting an impact on an impeller wheel (7) of an aircraft engine, characterised in that it comprises:acquisition means (13) for acquiring a revolutions per minute of said engine and a series of deflection signals representative of the deflections on the blades of said impeller wheel at said revolutions per minute, andcorrelation means (15) for constructing signals for detecting impact on said impeller wheel by correlating each of the deflection signals with a predetermined signature of a shock on a blade at said revolutions per minute.

Abstract translation: 本发明涉及一种用于检测对飞机发动机的叶轮（7）的冲击的方法和系统，其特征在于它包括：用于获取所述发动机每分钟转数和一系列偏转的采集装置（13） 表示所述叶轮在每分钟旋转的叶片上的偏转的信号;以及相关装置（15），用于通过将每个偏转信号与预定的震动特征相关联来构造用于检测对所述叶轮的冲击的信号 刀片以每分钟的转数。