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。

公开(公告)号：US09976967B2

公开(公告)日：2018-05-22

申请号：US14781181

申请日：2014-03-27

Applicant: SNECMA

Inventor： William Bense ,  Valerio Gerez

IPC: G01N21/88 ,  G01N25/72 ,  G01N29/44 ,  G06T7/00 ,  G01J5/00 ,  G01J5/10 ,  G01N29/04

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: A system and method for detecting defects on an object including forming an image representing the object from signals relating to the object, constructing subdivisions of the image according to auto-adaptive resolutions, and calculating differentials between various subdivisions in order to detect an abnormal subdivision indicating incipient failure.

公开(公告)号：US20160326968A1

公开(公告)日：2016-11-10

申请号：US14956851

申请日：2015-12-02

Applicant: SNECMA

Inventor： Serge BLANCHARD ,  William Bense

IPC: F02C9/32 ,  F02C9/28 ,  F02K3/00

Abstract: A device for regulating the flow rate of fuel supplied to an aircraft engine, configured to produce a fuel flow rate set value according to a thrust set value supplied by a gas control lever and a measurement of actual thrust of the engine. It extends to a control system including the regulation device and a device for measuring the actual thrust of the engine, to an engine equipped with such a control system, to a regulation method and to a computer program for implementing the method.

Abstract translation: 一种用于调节供应到飞机发动机的燃料的流量的装置，其被配置为根据由气体控制杆提供的推力设定值和发动机的实际推力的测量值来产生燃料流量设定值。 它延伸到包括调节装置的控制系统和用于测量发动机的实际推力的装置，配备有这种控制系统的发动机，调节方法和用于实现该方法的计算机程序。

公开(公告)号：US08825278B2

公开(公告)日：2014-09-02

申请号：US13774065

申请日：2013-02-22

Applicant: SNECMA

Inventor： William Bense ,  Jean-Yves Picart

IPC: G01M17/00

CPC classification number: B64D45/00 ,  F01D17/08 ,  F01D21/003 ,  F02C7/047 ,  F05D2260/80 ,  F05D2260/81 ,  F05D2270/3013 ,  F16K37/0083 ,  F16K37/0091

Abstract: A method and a system for detecting the first signs of malfunction of an aircraft engine valve, including an acquisition device to acquire the output pressure measurements of the valve, and contextual and command data of the valve, a processor to define a set of indicators of the first signs of malfunction, according to the output pressure measurements and the contextual and command data. A set of estimators corresponding to the set of indicators of the first signs of a malfunction, is determined using a previously produced regression model. At least one distance between the set of indicators and the set of estimators is computed. The distance is compared to a threshold of the first signs of a malfunction, in order to detect the first signs of malfunction of the said valve.

Abstract translation: 一种用于检测飞机发动机气门的故障的第一迹象的方法和系统，包括用于获取阀的输出压力测量值的采集装置，以及阀门的上下文和指令数据，处理器，用于定义一组指示器 根据输出压力测量和上下文和命令数据，出现故障的第一个迹象。 使用先前产生的回归模型来确定对应于故障的第一迹象的一组指示符的一组估计器。 计算指标集和估计量集之间的至少一个距离。 该距离与故障的第一迹象的阈值进行比较，以便检测所述阀的故障的第一迹象。