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    DETECTING AND TRACKING DAMAGE TO AN AEROENGINE FAN OR AN IMPACT OF A FOREIGN OBJECT THEREAGAINST
    1.
    发明申请
    DETECTING AND TRACKING DAMAGE TO AN AEROENGINE FAN OR AN IMPACT OF A FOREIGN OBJECT THEREAGAINST 有权
    检测和跟踪对AERENGANAN风扇的损害或外部对象的影响

    公开(公告)号：US20150098819A1

    公开(公告)日：2015-04-09

    申请号：US14386393

    申请日：2013-03-19

    Applicant: SNECMA

    Inventor： David Tourin ,  Pierre Ferdinand ,  Valerio Gerez ,  Andre Leroux

    IPC: F04D27/00 ,  G01B11/16 ,  G01D5/353 ,  F04D19/00

    CPC classification number: F04D27/001 ,  F01D5/282 ,  F01D17/02 ,  F01D21/003 ,  F04D19/002 ,  F04D29/324 ,  F05D2260/80 ,  F05D2270/804 ,  F05D2300/603 ,  G01B11/18 ,  G01D5/353 ,  G01M5/0016 ,  G01M5/0033 ,  G01M5/0091 ,  Y02T50/672

    Abstract: A system for detecting deformation of a fan for an aeroengine, the fan including a rotor including plural blades made of composite material including woven fibers. At least one of the fibers in each of the blades is an optical fiber including at least one portion defining a Bragg grating. The system further includes a transceiver connected to the optical fiber and configured to send an optical signal into the optical fiber and to receive an optical signal in response from the optical fiber, and a detector module connected to the transceiver to detect deformation of the fan when the received optical signal presents correlation with a predetermined signature of a damped impact on a blade at a determined speed of rotation. This deformation may be the result of a foreign object impacting against a blade of the fan or may follow from variation in an internal defect.

    Abstract translation: 一种用于检测航空发动机的风扇的变形的系统，所述风扇包括由包括机织纤维的复合材料制成的多个叶片的转子。 每个叶片中的至少一个纤维是包括限定布拉格光栅的至少一个部分的光纤。 该系统还包括连接到光纤的收发器，其被配置为将光信号发送到光纤中并且响应于光纤接收光信号;以及检测器模块，连接到收发器以检测风扇的变形， 所接收的光信号以确定的旋转速度呈现与叶片上的阻尼冲击的预定特征的相关性。 这种变形可能是异物撞击风扇叶片的结果，或者可能跟随内部缺陷的变化。

    System for detecting defects on an aircraft engine impeller wheel
    2.
    发明授权
    System for detecting defects on an aircraft engine impeller wheel 有权
    用于检测飞机发动机叶轮的缺陷的系统

    公开(公告)号：US08958946B2

    公开(公告)日：2015-02-17

    申请号：US13792537

    申请日：2013-03-11

    Applicant: SNECMA

    Inventor： Geoffroy Nicq ,  Valerio Gerez

    IPC: G06F7/00 ,  G01N3/30 ,  F01D21/00 ,  F01D21/14

    CPC classification number: G01N3/30 ,  F01D21/003 ,  F01D21/14

    Abstract: A method and an on-board system for detecting impact on an impeller wheel of an aircraft engine. Deflection signals representative of the deflections on the blades of the impeller wheel are acquired. Each of the deflection signals is correlated with a pulse signal typical of an impact on a sound blade at the rotation frequency of the engine, in order to identify impacts on the impeller wheel. The impact signals are extracted from among the deflection signals. The impact signals are transmitted to the ground in order that the signals are analyzed to detect defects on the blades of the impeller wheel.

    Abstract translation: 一种用于检测对飞机发动机的叶轮的冲击的方法和车载系统。 获得表示叶轮的叶片上的偏转的偏转信号。 每个偏转信号与典型的在发动机的旋转频率下对声音叶片的冲击的脉冲信号相关，以便识别对叶轮的影响。 从偏转信号中提取冲击信号。 撞击信号被传递到地面，以便分析信号以检测叶轮的叶片上的缺陷。

    System for detecting an impact on an aircraft engine impeller wheel
    3.
    发明授权
    System for detecting an impact on an aircraft engine impeller wheel 有权
    用于检测对飞机发动机叶轮的影响的系统

    公开(公告)号：US08942886B2

    公开(公告)日：2015-01-27

    申请号：US13754186

    申请日：2013-01-30

    Applicant: SNECMA

    Inventor： David Tourin ,  Valerio Gerez ,  Geoffroy Nicq

    IPC: G06F7/00 ,  B64D45/00 ,  F01D21/00 ,  F01D21/04 ,  F02C7/04

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

    Abstract: A method and a system for detecting an impact on an impeller wheel of an aircraft engine. A device acquires a revolutions per minute of the engine and a series of deflection signals representative of the deflections on the blades of the impeller wheel at the revolutions per minute. A device constructs signals for detecting impact on the impeller wheel by correlating each of the deflection signals with a predetermined signature of a shock on a blade at the revolutions per minute.

    Abstract translation: 一种用于检测对飞机发动机的叶轮的影响的方法和系统。 设备以每分钟转数获取发动机的每分钟转数和代表叶轮的叶片上的偏转的一系列偏转信号。 通过将每个偏转信号与每分钟转数上的叶片上的冲击的预定标记相关联，装置构造用于检测对叶轮的影响的信号。

    SYSTEM FOR DETECTING AN IMPACT ON AN AIRCRAFT ENGINE IMPELLER WHEEL
    6.
    发明申请
    SYSTEM FOR DETECTING AN IMPACT ON AN AIRCRAFT ENGINE IMPELLER WHEEL 有权
    用于检测飞机发动机叶轮的影响的系统

    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。

    Method of identifying the balancing configuration installed on a turbine engine rotor
    7.
    发明授权
    Method of identifying the balancing configuration installed on a turbine engine rotor 有权

    公开(公告)号：US10598017B2

    公开(公告)日：2020-03-24

    申请号：US15111414

    申请日：2015-01-05

    Applicant: SNECMA

    Inventor： Valerio Gerez ,  Francois Prost

    IPC: F01D5/02

    Abstract: A method of identifying the balancing configuration installed on a turbine engine rotor using a plurality of screws forming balance weights that are mounted on the rotor at different angular positions of the rotor is provided. Each screw possesses a predetermined weight and each screw is associated with an element for identifying its weight and for identifying its angular position on the rotor. The method includes contactless scanning of all of the screws mounted on the rotor by an identification appliance capable of recognizing the elements for identifying the weight and the angular position associated with each screw.

    METHOD, SYSTEM AND COMPUTER PROGRAM FOR THE ACOUSTIC ANALYSIS OF A MACHINE
    8.
    发明申请
    METHOD, SYSTEM AND COMPUTER PROGRAM FOR THE ACOUSTIC ANALYSIS OF A MACHINE 审中-公开
    方法，系统和计算机程序的机器的声学分析

    公开(公告)号：US20160238486A1

    公开(公告)日：2016-08-18

    申请号：US15028284

    申请日：2014-10-09

    Applicant: SNECMA

    Inventor： William Bense ,  Jérôme Lacaille ,  Valerio Gerez

    IPC: G01M15/14 ,  G01N29/44 ,  G01N29/14

    CPC classification number: G01M15/14 ,  G01M15/12 ,  G01N29/14 ,  G01N29/4436 ,  G01N29/4454 ,  G01N29/449 ,  G01N29/46 ,  G01N2291/2693

    Abstract: A method for the acoustic analysis of a machine (M) including the acquisition of at least one acoustic signal supplied by at least one microphone (7) positioned in the machine, characterized in that it comprises the following steps: separation of at least one acoustic signal into a plurality of sound sources, the signal being modelled as a mixture of components, each one corresponding to a sound source; for at least one separated sound source, determination of a characteristic acoustic signature; comparison of at least one characteristic acoustic signature with at least one reference acoustic signature recorded in a reference database (5).

    Abstract translation: 一种用于机器（M）的声学分析的方法，包括获取由位于机器中的至少一个麦克风（7）提供的至少一个声学信号，其特征在于，其包括以下步骤：分离至少一个声学 将信号模拟成多个声源，该信号被建模为分量的混合，每一个对应于声源; 对于至少一个分离的声源，确定特征声学特征; 将至少一个特征声学特征与在参考数据库（5）中记录的至少一个参考声学特征进行比较。

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