公开(公告)号：US20130211743A1

公开(公告)日：2013-08-15

申请号：US13767056

申请日：2013-02-14

Applicant: SNECMA

Inventor： Andre LEROUX

IPC: G01M15/14

CPC classification number: G01M15/14 ,  F01D17/06 ,  F01D21/003 ,  G01B21/32 ,  G01H1/006 ,  G01M5/0016 ,  G01M5/0041 ,  G01M99/004 ,  Y02T50/672

Abstract: A method for measuring the deformation of a turbo-machine blade including: a step of positioning at least one accelerometer onto a local point of the turbo-machine blade; a first step of measuring the centrifugal force, by the accelerometer, at the local point of the turbo-machine blade along the given measurement direction at a first predetermined speed; a second step of measuring the centrifugal, at a second predetermined speed; a step of determining the angular displacement of the measurement direction of the accelerometer relative to the centrifugal direction as a function of the first acceleration measurement and the second acceleration measurement, said angular displacement corresponding to an angular deformation of the local point of the turbo-machine blade.

Abstract translation: 一种用于测量涡轮机叶片的变形的方法，包括：将至少一个加速度计定位在涡轮机叶片的局部点上的步骤; 第一步骤，通过加速度计在涡轮机叶片的局部点处沿着给定的测量方向以第一预定速度测量离心力; 第二步骤，以第二预定速度测量离心; 确定加速度计相对于离心方向的测量方向的角位移作为第一加速度测量和第二加速度测量的函数的步骤，所述角位移对应于涡轮机的局部点的角变形 刀。

公开(公告)号：US20140356132A1

公开(公告)日：2014-12-04

申请号：US13888715

申请日：2013-05-07

Applicant: SNECMA

Inventor： Andre LEROUX ,  Serge Del Arco ,  Olivier Follerot ,  Michel Herbault ,  Philippe Armand Hugbart ,  Fabien Pouchard ,  Etienne Tulie

IPC: G01M15/14 ,  G01N21/17 ,  F01D21/00

CPC classification number: G01M15/14 ,  F01D21/003 ,  G01B11/14 ,  G01H1/006 ,  G01H9/006 ,  G01M7/00 ,  G01N21/1702 ,  G01N2021/1706 ,  G01N2201/08

Abstract: The invention relates to a device for measuring vibration amplitudes of the blade tips in a turbomachine, comprising a support mounted in an orifice of a casing of a turbomachine and wherein are housed two optical guides for the emission and reception of a light signal exiting inside the casing across from the tips of the blades of a turbine wheel. Each optical guide comprises an optical fibre connected by a mechanical connector to a needle of which the core is made of a material able to transmit a light signal and which is resistant to temperatures less than or equal to 1100° C. and which exits at its distal end in the casing across from the blade tips.

Abstract translation: 本发明涉及一种用于测量涡轮机中的叶片尖端的振幅的装置，包括安装在涡轮机壳体的孔口中的支撑件，并且其中容纳有两个光导件，用于发射和接收从内部 从涡轮机叶片的叶片的尖端穿过。 每个光学引导件包括通过机械连接器连接到针的光纤，芯的芯由能够传输光信号的材料制成，并且其耐受低于或等于1100℃的温度，并且在其出口处 外壳中的远端从刀片尖端穿过。