公开(公告)号：EP2932226A1

公开(公告)日：2015-10-21

申请号：EP13815078.4

申请日：2013-12-12

Applicant: Snecma

Inventor： NICQ, Geoffroy

IPC: G01M15/11 ,  G01M15/12 ,  G10K11/178

CPC classification number: G01N29/4436 ,  G01M15/12 ,  G01N29/4472 ,  G10K11/178 ,  G10K2210/107 ,  G10K2210/1281

Abstract: The present invention relates to a method for acoustically detecting at least one malfunction (DYS) of a motor, the motor generating a primary noise Po that is treated by an active noise control system emitting, at the noise reduction targets, an acoustic signal Pc produced by at least one actuator and connected by a transfer function H to a signal Y produced by said active noise control system, said malfunction (DYS) having an acoustic signature identifiable in the primary noise Po at the noise reduction targets, characterised in that it comprises the following steps: acquisition of said signal Y produced by the active control system; identification of the appearance, if any, of a malfunction by a monitoring means that uses the knowledge of Y and H and emits an alert message if warranted.

公开(公告)号：EP3013685A1

公开(公告)日：2016-05-04

申请号：EP14749881.0

申请日：2014-06-20

Applicant: SNECMA

Inventor： NICQ, Geoffroy

IPC: B64C11/26 ,  B64D45/00

CPC classification number: G01N21/8806 ,  B64C11/26 ,  B64D2027/005 ,  B64D2045/0085 ,  F01D21/003 ,  G01N21/21 ,  G01N2021/8848 ,  G01N2201/061 ,  G01N2201/0683 ,  G01N2201/08 ,  Y02T50/66

Abstract: The present disclosure concerns a remote connection system capable of being incorporated into an aircraft (1A, 1B, 1C) comprising at least one motor propeller (50A, 50B, 50C) having a plurality of blades (52A, 52B, 52C) capable of rotating relative to a fixed module (10A, 10B, 10C) of the aircraft about an drive shaft (X). The system comprises: an optical transmission device configured such that, when the system is incorporated into the aircraft (1A, 1B, 1C), it transmits a light beam that emerges out of the propeller (50A, 50B, 50C), from at least one transmitting surface (54A, 54B, 54C) of said propeller (50A, 50B, 50C); and an optical device for detecting the light beam, comprising at least one detecting surface (14A, 14B, 14C) that is sensitive to the light beam, and that is capable of being incorporated into the fixed module (10A, 10B, 10C) in such a way that said at least one transmitting surface (54A, 54B, 54C) and said at least one detecting surface (14A, 14B, 14C) repeatedly come to face each other, at a distance from each other, when the propeller (50A, 50B, 50C) rotates relative to the fixed module (10A, 10B, 10C). The present disclosure also concerns an assembly comprising the propeller, the fixed module and the connection system.

Abstract translation: 本说明书涉及一种适用于结合在飞行器（1A，1B，1C）中的远程连接系统，该飞机包括至少一个具有多个叶片（52A，52B，52C）的发动机推进器（50A，50B，50C） 相对于飞行器的关于发动机轴线（X）的固定模块（10A，10B，10C）旋转。 远程连接系统包括：发光装置，当远程连接系统结合在飞行器（1A，1B，1C）中时，配置为发出出射到螺旋桨（50A，50B，50C）外部的光束， 来自所述螺旋桨（50A，50B，50C）的至少一个发射表面（54A，54B，54C）。

公开(公告)号：EP3013685B1

公开(公告)日：2017-08-09

申请号：EP14749881.0

申请日：2014-06-20

Applicant: SNECMA

Inventor： NICQ, Geoffroy

IPC: B64C11/26 ,  B64D45/00

CPC classification number: G01N21/8806 ,  B64C11/26 ,  B64D2027/005 ,  B64D2045/0085 ,  F01D21/003 ,  G01N21/21 ,  G01N2021/8848 ,  G01N2201/061 ,  G01N2201/0683 ,  G01N2201/08 ,  Y02T50/66

公开(公告)号：EP2807460A1

公开(公告)日：2014-12-03

申请号：EP13705210.6

申请日：2013-01-14

Applicant: SNECMA

Inventor： NICQ, Geoffroy

IPC: G01H1/00

CPC classification number: G01M13/028 ,  G01H1/003 ,  G01H1/006 ,  G01P3/00

Abstract: The invention relates to a method and a system for acquiring a vibratory signal in order to diagnose a rotary motor (7), comprising: input means (3) for receiving a temporal vibratory signal (X(t)) of said motor and at least one current rotation rate (N(t)) of at least one shaft (11) of said motor, and sampling means (5) for sampling said temporal vibratory signal (X(t)) in real time with at least one sampling signal (S) synchronized with said at least one current rotation rate thus generating a corresponding synchronous vibratory signal (x(n
t )).