公开(公告)号：WO2010040966A1

公开(公告)日：2010-04-15

申请号：PCT/FR2009/051930

申请日：2009-10-09

Applicant: SNECMA ,  GEREZ, Valerio ,  GRIFFATON, Julien ,  GUILLEMAND, Grégory

Inventor： GEREZ, Valerio ,  GRIFFATON, Julien ,  GUILLEMAND, Grégory

IPC: F01D21/00 ,  G01H1/00

CPC classification number: F01D21/003 ,  F01D21/04 ,  F05D2260/80 ,  F05D2260/96 ,  F05D2270/09 ,  F05D2270/304 ,  G01H1/006 ,  Y02T50/671

Abstract: L'invention concerne un procédé et un système de surveillance d'un turboréacteur. Le procédé consiste à acquérir (E10) un signal représentatif d'un niveau vibratoire d'un rotor en fonctionnement du turboréacteur, acquérir (E20) un régime de rotation du rotor en fonctionnement, comparer (E40) l'amplitude du signal à au moins un seuil vibratoire prédéterminé en fonction du régime de rotation du rotor, et, en cas de dépassement du seuil par un pic d'amplitude, à analyser (E50) le signal sur une fenêtre temporelle définie autour du pic d'amplitude pour déterminer (E60) si le phénomène à l'origine du pic d'amplitude est un choc mécanique subi par le rotor du turboréacteur ou une perturbation électronique du signal.

Abstract translation: 本发明涉及一种用于监控涡轮喷气发动机的方法和系统。 该方法包括获取（E10）代表涡轮喷气发动机的操作转子的振动水平的信号，在运行期间获取（E20）转子的转速，比较（E40）信号的振幅与至少一个 基于转子旋转速度的预定阈值，并且在幅度峰值超过所述阈值的情况下，在围绕幅度峰值定义的时隙上分析（E50）信号，以便确定（E60）如果在 振幅峰值是涡轮喷气发动机的转子或信号的电子干扰所引起的机械冲击。

公开(公告)号：WO2003042504A1

公开(公告)日：2003-05-22

申请号：PCT/FR2002/003888

申请日：2002-11-14

Applicant: SNECMA MOTEURS ,  GEREZ, Valerio ,  JADCZAK, Edouard

Inventor： GEREZ, Valerio ,  JADCZAK, Edouard

IPC: F01D11/12

CPC classification number: F04D29/324 ,  F01D5/147 ,  F01D5/20 ,  F01D21/04 ,  F01D21/045 ,  F05B2260/3011 ,  Y02T50/671 ,  Y02T50/673

Abstract: L'invention concerne un turboréacteur pour aéronef comportant une soufflante (9) dont le moyeu (8) est entraîné par un arbre sur au moins un palier relié à la structure du turboréacteur par un support de palier avec interposition d'un dispositif de découplage, ledit moyeu comportant à sa périphérie une pluralité d'aubes (1) se déplaçant à l'intérieur d'un carter de rétention (4) avec un jeu radial E entre les sommets (2) desdites aubes (1) et la paroi intérieure (5) dudit carter de rétention (4), ladite paroi intérieure (5) étant tapissée d'une couche (6) d'un matériau abradable susceptible d'être rabotée par les sommets des aubes en rotation, caractérisé par le fait que les sommets (2) des aubes (1) sont susceptibles d'être désintégrés par la paroi interne (5) du carter de rétention (4) en cas de choc suite à l'apparition d'un balourd ayant entraîné le découplage du palier, afin d'obtenir un jeu J > E nécessaire au fonctionnement du découpleur.

Abstract translation: 本发明涉及一种飞机涡轮喷气发动机，其包括风扇（9），所述风扇（9）通过具有插入的非耦合装置的轴承支撑件在至少一个与涡轮喷气发动机结构相连的轴承上的轴驱动，所述轮毂在其周边包括 多个叶片（1）在保持壳体（4）内移动，在所述叶片（1）的顶端（2）和所述保持壳体（4）的内壁（5）之间具有径向间隙E，所述内壁 5）衬有能够被旋转刀片的尖端刨平的耐磨材料层（6）。 本发明的特征在于，在由于发生不平衡而引起轴承的冲击的情况下，叶片（1）的尖端（2）能够被保持壳体（4）的内壁（5）分解， 以解除联接，以获得解耦装置操作所需的间隙J> E。

公开(公告)号：EP2344728B1

公开(公告)日：2016-02-10

申请号：EP09756001.5

申请日：2009-10-09

Applicant: Snecma

Inventor： GEREZ, Valerio ,  GRIFFATON, Julien ,  GUILLEMAND, Grégory

IPC: F01D21/00 ,  G01H1/00

CPC classification number: F01D21/003 ,  F01D21/04 ,  F05D2260/80 ,  F05D2260/96 ,  F05D2270/09 ,  F05D2270/304 ,  G01H1/006 ,  Y02T50/671

公开(公告)号：EP2828486A1

公开(公告)日：2015-01-28

申请号：EP13719899.0

申请日：2013-03-19

Applicant: SNECMA

Inventor： TOURIN, David ,  FERDINAND, Pierre ,  GEREZ, Valerio ,  LEROUX, André

IPC: F01D5/28 ,  F01D17/02 ,  F04D29/32 ,  G01L1/24

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: The invention relates to a system for detecting a deformation on a fan (1) for an aircraft engine comprising a rotor (2) equipped with a plurality of blades (3) made of a composite material including woven fibres. This system is noteworthy in that at least one of the fibres of each of the blades (3) is an optical fibre (4) comprising at least one portion defining a Bragg grating, the system furthermore comprising an emitter/receiver (6) linked to the optical fibre (4) and able to send an optical signal down this optical fibre (4) and to receive in response an optical signal from the optical fibre (4) and a detection module (7, 17) linked to the emitter/receiver for detecting a deformation on the fan (1, 11) when the optical signal received exhibits a correlation with a predetermined signature of a damped shock on a blade at a determined rotation speed. This deformation may arise from an impact of a foreign object on a blade of the fan or be consequent upon the development of an internal defect.

Abstract translation: 一种用于检测风扇的变形在航空发动机，所述风扇包括一个转子，其包括由包括织造纤维复合材料的多个叶片系统。 至少在每个叶片的纤维的一个是光纤包括至少一个部分限定一个布拉格光栅。 该系统还包括连接到光纤并且被配置为收发器，以发送到光信号到光纤并且从光纤响应于接收光学信号，以及连接到所述收发器的检测器模块，用于检测所述风扇时的变形 接收的光信号呈现的在旋转的确定性开采速度上的叶片阻尼冲击的预定签名的相关性。 这种变形可以是异物 - 影响抵靠风扇的叶片的结果，或者可以从变化缺陷遵循内部。

公开(公告)号：EP2344728A1

公开(公告)日：2011-07-20

申请号：EP09756001.5

申请日：2009-10-09

Applicant: Snecma

Inventor： GEREZ, Valerio ,  GRIFFATON, Julien ,  GUILLEMAND, Grégory

IPC: F01D21/00 ,  G01H1/00

CPC classification number: F01D21/003 ,  F01D21/04 ,  F05D2260/80 ,  F05D2260/96 ,  F05D2270/09 ,  F05D2270/304 ,  G01H1/006 ,  Y02T50/671

Abstract: The invention relates to a method and a system for monitoring a turbojet engine. The method consists of acquiring (E10) a signal representative of the vibratory level of an operating rotor of the turbojet engine, acquiring (E20) a rotation speed of the rotor during operation, comparing (E40) the amplitude of the signal with at least one predetermined threshold based on the rotor rotation speed and, in the event an amplitude peak exceeds said threshold, analysing (E50) the signal over a time slot defined around the amplitude peak in order to determine (E60) if the phenomenon at the origin of the amplitude peak is a mechanical shock undergone by the rotor of the turbojet engine or an electronic interference of the signal.

公开(公告)号：EP2979082A1

公开(公告)日：2016-02-03

申请号：EP14718687.8

申请日：2014-03-27

Applicant: SNECMA

Inventor： BENSE, William ,  GEREZ, Valerio

IPC: G01N25/72 ,  G01N29/44 ,  G06T7/00

CPC classification number: G01N21/8851 ,  G01J5/0022 ,  G01J5/10 ,  G01J2005/0077 ,  G01J2005/0081 ,  G01N25/72 ,  G01N29/043 ,  G01N29/4409 ,  G01N2021/8887 ,  G01N2291/0289 ,  G01N2291/044 ,  G01N2291/2693 ,  G01N2291/2694 ,  G06T7/0004 ,  G06T2207/20021 ,  G06T2207/30164

Abstract: The invention relates to a system and a method for detecting defects on an object (11), comprising the following steps:-forming an image (13) representative of said object (11) on the basis of signals (9) relating to the object,-constructing subdivisions (15) of said image according to auto adaptive resolutions, and-calculating differentials between different subdivisions to detect an abnormal subdivision indicative of omens of breakdown.

公开(公告)号：EP2622181A1

公开(公告)日：2013-08-07

申请号：EP11773784.1

申请日：2011-09-27

Applicant: Snecma

Inventor： GEREZ, Valerio ,  BALK, Wouter ,  JADCZAK, Edouard, Joseph

IPC: F01D21/04

CPC classification number: F02C7/00 ,  F01D21/04 ,  F01D21/045 ,  Y02T50/671

Abstract: The invention relates to a gas turbine engine comprising a case (5, 15) in which is mounted at least one shaft (2) for driving a fan (4) solidly connected to a driving drum (6) provided with blades (61) in order to compress an airflow moving from upstream to downstream in the engine. The engine comprises axial retention means (30), on standby, solidly connected to the case (5, 15) and arranged to come into contact with the driving drum (6) such as to prevent the axial movement of the drum (6) in the event of breakage of the driving shaft (2).

公开(公告)号：EP3039397A1

公开(公告)日：2016-07-06

申请号：EP14796806.9

申请日：2014-10-09

Applicant: SNECMA

Inventor： BENSE, William ,  LACAILLE, Jérôme ,  GEREZ, Valerio

IPC: G01M15/12 ,  G01N29/14 ,  G01N29/44 ,  G01N29/46

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

Abstract: The invention relates to a method for the acoustic analysis of a machine (M), comprising the acquisition of at least one acoustic signal supplied by at least one microphone (7) positioned in the machine, characterised in that it comprises the following steps: separation of at least one acoustic signal into a plurality of sound sources, said signal being modelled as a mixture of components, each one corresponding to a sound source; for at least one separate 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).

公开(公告)号：EP2622181B1

公开(公告)日：2015-03-18

申请号：EP11773784.1

申请日：2011-09-27

Applicant: Snecma

Inventor： GEREZ, Valerio ,  BALK, Wouter ,  JADCZAK, Edouard, Joseph

IPC: F01D21/04 ,  F02C7/00

CPC classification number: F02C7/00 ,  F01D21/04 ,  F01D21/045 ,  Y02T50/671

公开(公告)号：EP2627982A1

公开(公告)日：2013-08-21

申请号：EP11779767.0

申请日：2011-09-30

Applicant: Snecma

Inventor： GEREZ, Valerio ,  LACAILLE, Jérôme, Henri, Noël

IPC: G01M15/02 ,  G01M15/05

CPC classification number: G01M15/02 ,  G01M15/05

Abstract: The invention relates to a method and a system for monitoring a test bed for at least one component of an engine, comprising: - acquisition means (7) for acquiring at successive instants packets of time signals corresponding to measurements of endogenous and exogenous parameters specific to the assembly (11) made up of the test bed (3) and engine component (5), - processing means (9) for constructing at each instant of said successive instants and on the basis of the packets of temporal signals prior to said instant an endogenous indicator vector and an associated exogenous indicator vector, - processing means (9) for identifying a class of context for said exogenous indicator vector, and - processing means (9) for calculating by using at least one anomaly detector a probability of risk of said endogenous indicator vector conditioned by said class of context identified for said associated exogenous indicator vector so as to diagnose the state of said assembly (11) made up of the test bed and engine component.