公开(公告)号：EP3332211B1

公开(公告)日：2024-07-03

申请号：EP16857931.6

申请日：2016-07-27

IPC: G01H1/00 ,  B64C27/04 ,  B64F5/60 ,  F02C3/10 ,  B64D45/00

CPC classification number: B64C27/04 ,  B64F5/60 ,  B64D2045/008520130101 ,  F02C3/10 ,  G01H1/006

公开(公告)号：EP2870346B1

公开(公告)日：2018-04-25

申请号：EP13812467.2

申请日：2013-06-26

Applicant: United Technologies Corporation

Inventor： KHIBNIK, Alexander I. ,  HALL, Benjamin D.

IPC: F02C9/00 ,  F02C7/00 ,  F02C9/16 ,  F01D21/00 ,  G05B23/02

CPC classification number: F02C7/00 ,  F01D21/003 ,  F05D2260/80 ,  F05D2260/96 ,  F05D2270/708 ,  F05D2270/80 ,  G01H1/006 ,  G01H3/00 ,  G05B23/0245

Abstract: A disclosed airfoil health monitoring system and method obtains a signal comprising a waveform indicative of an airfoil path with a sensor. Features of the waveform are determined and compared waveform characteristics indicative of a vibrational mode. A vibrational mode of the airfoil may then be determined based on the comparison between the predetermined waveform characteristics and the obtained waveform indicative of the airfoil path.

公开(公告)号：EP3291041A1

公开(公告)日：2018-03-07

申请号：EP17188888.6

申请日：2017-08-31

Applicant: United Technologies Corporation

Inventor： ZACCHIO, Joseph ,  MCCABE, Brian L. ,  MANTESE, Joseph V. ,  SOBANSKI, Kurt J.

IPC: G05B23/02 ,  G06K19/077 ,  G01S13/58

CPC classification number: G05B23/0208 ,  G01H1/006 ,  G01H9/00 ,  G01S7/003 ,  G01S13/58 ,  G06K19/07767

Abstract: A system of a machine includes a network of a plurality of sensing / control / identification devices (68a, 68b) distributed throughout the machine, each of the sensing / control / identification devices (68a, 68b) associated with at least one sub-system component (70, 74) of the machine and operable to communicate through a plurality of electromagnetic signals (86). The system also includes shielding (84) surrounding at least one of the sensing / control / identification devices (68a, 68b) to contain the electromagnetic signals (86) proximate to the at least one sub-system component (70, 74). The system further includes an electromagnetic sensing system to read the plurality of electromagnetic signals (86) for detection of at least one condition of the sub-system component (70, 74) of the machine. The system yet further includes a remote processing unit (66) operable to communicate with the network of the sensing / control / identification devices (68a, 68b) through the electromagnetic signals (86).

Abstract translation: 机器的系统包括遍布机器分布的多个感测/控制/识别装置（68a，68b）的网络，每个感测/控制/识别装置（68a，68b）与至少一个子系统 （70,74）并且可操作以通过多个电磁信号（86）进行通信。 该系统还包括围绕感测/控制/识别装置（68a，68b）中的至少一个的屏蔽件（84），以包含紧邻至少一个子系统部件（70,74）的电磁信号（86）。 该系统还包括电磁感测系统以读取用于检测机器的子系统部件（70,74）的至少一个状况的多个电磁信号（86）。 该系统还进一步包括可操作以通过电磁信号（86）与感测/控制/识别装置（68a，68b）的网络通信的远程处理单元（66）。

公开(公告)号：EP3290653A1

公开(公告)日：2018-03-07

申请号：EP17189255.7

申请日：2017-09-04

Applicant: United Technologies Corporation

Inventor： CONSIGLIO, Andrew ,  GYSLING, Daniel L.

IPC: F01D17/04

CPC classification number: F04D27/001 ,  F01D17/04 ,  F01D21/003 ,  F01D21/14 ,  F04D29/325 ,  F05D2220/36 ,  F05D2270/334 ,  F05D2270/808 ,  G01H1/006 ,  G01M15/14

Abstract: An aeromechanical identification system (62) for turbomachine includes at least one actuator (64) mounted on a stationary structure (14) to excite rotatable airfoils (42). At least one sensor (66) is mounted proximate the airfoils (42) for measuring a response of the airfoils (42) responsive to excitation from the at least one actuator (64). A controller (68) is configured to determine a damping characteristic of an aeromechanical mode of the rotating airfoils (42) based on the excitation and the response. A gas turbine engine (20) and a method of determining a flutter boundary for an airfoil (42) of a turbomachine are also disclosed.

Abstract translation: 用于涡轮机械的航空机械识别系统（62）包括安装在固定结构（14）上以激励可旋转翼型（42）的至少一个致动器（64）。 至少一个传感器（66）安装在翼型件（42）附近，用于响应于来自至少一个致动器（64）的激励来测量翼型件（42）的响应。 控制器（68）被配置成基于激励和响应来确定旋转翼型件（42）的气动模式的阻尼特性。 还公开了一种燃气涡轮发动机（20）和一种确定涡轮机翼型（42）的颤振边界的方法。

公开(公告)号：EP3263846A1

公开(公告)日：2018-01-03

申请号：EP17175498.9

申请日：2017-06-12

Applicant: Rolls-Royce plc

Inventor： Rowe, Arthur ,  Binnington, Mark ,  Woodward, Colin ,  Thornton, Paul

IPC: F01D21/00 ,  G01H1/00 ,  F01D21/04

CPC classification number: F01D21/003 ,  F01D21/04 ,  F02C9/00 ,  F04D27/001 ,  F05D2220/32 ,  F05D2240/20 ,  F05D2260/83 ,  F05D2270/304 ,  G01H1/006 ,  G01P3/46

Abstract: A rotor assembly (30) comprising a rotor (32) having an annular array of rotor blades (34), the rotor mounted to a shaft (38). A phonic wheel (40) coupled to the shaft. A speed sensor (44) axially aligned with the phonic wheel and configured to measure voltage (V), amplitude of the voltage being proportional to clearance (46) between the sensor and phonic wheel. A processor (48) configured to: receive the voltage measurement; derive shaft speed (ω) from the voltage measurement; identify modulation of the voltage amplitude at a frequency which is an integer multiple of the shaft speed; compare voltage amplitude to a threshold; and output a rotor damage signal based on the comparison.

Abstract translation: 一种转子组件（30），包括具有转子叶片（34）的环形阵列的转子（32），转子安装在轴（38）上。 发音轮（40）耦合到轴。 速度传感器（44）与发音轮轴向对齐并被配置为测量电压（V），电压的幅度与传感器和发音轮之间的间隙（46）成比例。 处理器（48），被配置为：接收电压测量结果; 从电压测量中导出轴速度（ω）; 识别电压振幅在轴转速整数倍频率下的调制; 将电压幅度与阈值进行比较; 并基于该比较输出转子损坏信号。

公开(公告)号：EP2518457A3

公开(公告)日：2017-11-22

申请号：EP12165561.7

申请日：2012-04-25

Applicant: General Electric Company

Inventor： Heda, Sanjeev Shyam ,  Wood, Scott Alan ,  Iasillo, Robert Joseph

IPC: G01H1/00

CPC classification number: G01H1/006

Abstract: Systems (100) and methods (200) for protecting rotating machines (105) are provided. Measurements data collected by a plurality of sensors (110, 115) may be received (205) by a controller (120) that includes one or more computers. The plurality of sensors (110, 115) may be configured to monitor vibrations associated with the rotating machine (105). Based at least in part upon the measurements data, the controller (120) may determine (240) that a respective amplitude change for at least two of the plurality of sensors (110, 115) exceeds a threshold condition. The controller (120) may also determine (245) that the threshold condition is exceeded for a predetermined period of time. Based at least in part upon determining that the threshold condition is exceeded for a predetermined period of time, the controller (120) may identify (265) an alarm event.

Abstract translation: 提供了用于保护旋转机器（105）的系统（100）和方法（200）。 由多个传感器（110,115）收集的测量数据可以由包括一个或多个计算机的控制器（120）接收（205）。 多个传感器（110,115）可以被配置为监测与旋转机器（105）相关联的振动。 至少部分基于测量数据，控制器（120）可以确定（240）多个传感器（110,115）中的至少两个的相应振幅变化超过阈值条件。 控制器（120）还可以确定（245）阈值条件已经超过预定的时间段。 至少部分地基于确定阈值条件已经超过预定时间段，控制器（120）可以识别（265）警报事件。

公开(公告)号：EP2746541B1

公开(公告)日：2017-07-19

申请号：EP13196683.0

申请日：2013-12-11

Applicant: Doosan Skoda Power S.r.o. ,  Západoceská univerzita v Plzni

Inventor： Cerný, Václav, Ing. ,  Liska, Jindrich

IPC: F01D25/04 ,  F01D25/16 ,  F01D19/00 ,  F01D21/00 ,  F01D21/04 ,  F01D11/20 ,  F02C9/28 ,  G01M15/14 ,  G01H1/00 ,  G01M13/04

CPC classification number: G01M13/045 ,  F01D11/20 ,  F01D19/00 ,  F01D21/003 ,  F01D21/04 ,  F01D25/04 ,  F01D25/164 ,  F02C9/28 ,  G01H1/006 ,  G01M15/14

Abstract: The invention relates to a method of detecting and localizing partial rotor-stator rubbing during the operation of a turbine, in which the rotor (1) of the turbine is monitored by means of at least one pair of sensors (3, 30, 4, 40) of the rotor vibrations arranged in one plane of measuring (330, 440) perpendicular to the axis of the rotor (1) and by at least one pair of sensors of the absolute vibrations of the bearings (2, 20). When using this method of processing, synchronically digitalized signals of the sensors (3, 30, 4, 40) of rotor vibrations, first the arithmetic mean of the individual harmonic bands in full spectrum in the frequency domain is calculated, by which means the information about the subharmonic components and their multiples in the full spectrum of these signals is transfered into the frequency band -1 X to 1 X (where X indicates the rotational frequency of the rotor (1)), at the same time is by the calculation of the median estimated the level of the signal noise, with which individual frequency bands of the full spectrum are encumbered, and which is subtracted from the amplitudes in the individual frequency bands of full spectrum of the signals of the sensors. Thus normalized accumulated full spectrum of the signals of the sensors of rotor vibrations is created, in which, subsequently, the amplitude of the predetermined subharmonic component/components of the signals of rotor vibrations is compared with the amplitudes of the frequency components in its proximity determined by the Fourier transform or by approximation with the Fourier series. Simultaneously, the presence of the monitored subharmonic component of the signals of the rotor vibrations in the spectrum of these signals is deduced, on the basis of which subsequently the occurrence of rotor-stator rubbing is deduced. In case of the rubbing occurrence the place/places of the turbine where it takes place is further localized.

Abstract translation: 本发明涉及一种在涡轮机运行期间检测和定位部分转子 - 定子摩擦的方法，其中涡轮机的转子（1）借助于至少一对传感器（3,30,4， 40）布置在垂直于转子（1）的轴线的测量（330,440）的一个平面中的转子振动以及通过轴承（2,20）的绝对振动的至少一对传感器。 当使用这种处理方法时，转子振动的传感器（3,30,4,40）的同步数字化信号首先计算频域全频谱中各个谐波带的算术平均值，通过该方法，信息 关于这些信号的全频谱中的次谐波分量及其倍数被转移到频带-1X至1X（其中X表示转子（1）的旋转频率），同时通过计算 估计信号噪声的水平的中值，利用该信号噪声的全频谱的各个频带被阻塞，并且从传感器信号的全频谱的各个频带中的幅度中减去该信号噪声的水平。 由此产生转子振动的传感器的信号的归一化积累的全频谱，其中随后将转子振动的信号的预定分谐波分量/分量的幅度与在其附近确定的频率分量的幅度进行比较 通过傅立叶变换或通过与傅里叶级数近似。 同时，推导出这些信号频谱中转子振动信号的监测分谐波分量的存在，据此推导出转子 - 定子摩擦的发生。 在摩擦发生的情况下，发生涡轮的地方/位置进一步局部化。

公开(公告)号：EP3012460A1

公开(公告)日：2016-04-27

申请号：EP15189834.3

申请日：2015-10-14

Applicant: Simmonds Precision Products, Inc.

Inventor： LIU, Lei

IPC: F04D27/00 ,  F04D27/02 ,  F04D29/66 ,  G01H1/00

CPC classification number: G01H1/006 ,  F01D21/003 ,  F01D21/14 ,  F04D27/001 ,  F04D27/02 ,  F04D29/668 ,  F05D2260/80 ,  F05D2270/101 ,  F05D2270/334 ,  F05D2270/708

Abstract: A method (100) for monitoring for a surge condition includes detecting a surge condition through vibration signals measured at at least one location in a turbomachine. Detecting a surge condition includes:
- determining a ratio-metric indicator R BR by comparing a blade frequency band Ω B to a reference frequency band Ω R ;
- calculating a surge score SS (106) with the following equation:
SS = (R BR - R µ ) / R σ
wherein R µ is a sample mean of a set of ratio-metric indicators and R σ is a sample standard deviation of a set of ratio-metric indicators; and
- determining whether a surge condition exists based on the surge score (108).

Abstract translation: 用于监测喘振状态的方法（100）包括通过在涡轮机中的至少一个位置处测量的振动信号来检测浪涌状况。 检测浪涌条件包括： - 通过将叶片频带©B与参考频带R R进行比较来确定比率度量指标R BR; - 用下列公式计算喘振分数SS（106）：SS =（R BR-Rμ）/ RÃ其中Rμ是一组比率度量指标的样本均值，R of是样本标准偏差 一组比率指标; 以及 - 基于所述浪涌评分确定是否存在喘振状况（108）。

公开(公告)号：EP3012439A1

公开(公告)日：2016-04-27

申请号：EP15187691.9

申请日：2015-09-30

Applicant: Rolls-Royce plc

Inventor： Bacic, Marko

IPC: F02C9/28 ,  F02C9/56

CPC classification number: G01H1/006 ,  F01D5/027 ,  F02C9/28 ,  F02C9/56 ,  F05D2260/80 ,  F05D2270/334 ,  F05D2270/335 ,  G01H13/00 ,  G01L3/04 ,  G01M5/0025

Abstract: A method to determine inertia of components of a rotating shaft system. The shaft system comprising a shaft (30, 32, 34) coupling a turbine (26, 24, 22) to drive the rotation and a load (14, 16, 18) to be driven by the rotation. The method comprising steps to:
a) apply a feedback (-Gθ) to a forcing input to the shaft system;
b) measure resonant frequency (ω r ) of the shaft;
c) iterate steps a) and b) for different feedbacks (-Gθ);
d) plot resonant frequency squared (ω r 2 ) against gain (G); and
e) determine inverse of gradient from the plot to give inertia of the turbine (J 2 ).
Also a method to determine shaft stiffness using the inertia of the turbine.

Abstract translation: 确定旋转轴系的部件惯性的方法。 所述轴系统包括联接涡轮机（26,24,22）以驱动旋转的轴（30,32,34）和由所述旋转驱动的负载（14,16,18）。 该方法包括以下步骤：a）将反馈（-G）应用于对轴系统的强制输入; b）测量轴的谐振频率（Ér）; c）对不同的反馈（-G¸）迭代步骤a）和b）; d）绘制谐振频率平方（Ér 2）对增益（G）; 和e）确定曲线的梯度的倒数，以给出涡轮机的惯量（J 2）。 也是使用涡轮机的惯性来确定轴刚度的方法。

公开(公告)号：EP2885510A1

公开(公告)日：2015-06-24

申请号：EP13774110.4

申请日：2013-10-01

Applicant: Siemens Aktiengesellschaft

Inventor： JAKIELSKI, Sebastian ,  OBERMAYR, Stefan

IPC: F01D21/00 ,  G01H1/00

CPC classification number: G01N27/025 ,  F01D5/14 ,  F01D21/003 ,  F05D2260/80 ,  F05D2270/821 ,  G01H1/006 ,  G01N27/61

Abstract: The invention relates to a measurement method (11) for early detection of damage to a blade (26) of an impeller of a turbine (10). According to the invention, during operation of the turbine (10), in a rotational direction (17) of the blade (26) along a circumference (24) which surrounds the impeller, at a plurality of points, in each case a plurality of magnetic fields are generated next to one another substantially in an oscillation direction (18) of the blade (26), which magnetic fields are influenced by a tip (15) of a turbine blade (14) of the blade (26) during transit. Positional values (19) of the tip (15) are detected (32) by way of the influencing at the plurality of points. A positional profile (20) of the turbine blade (14) is then formed (33) from the positional values (19) and a frequency (22) is determined (34) from the positional profile (20). Said frequency (22) is compared (35) with defined frequency values. An alarm event (23) is recognized (36) in the case of a sudden and/or pronounced change in the frequency (22). In addition, a turbine (10) is claimed which is configured to carry out the measurement method (11) according to the invention.

Abstract translation: 测量方法（11）涉及在涡轮机的运行期间基本上沿着叶片的振荡方向彼此相邻地产生多个磁场。 通过影响多个点处的磁场来检测尖端的位置值（32），然后从位置值形成涡轮叶片的位置轮廓（33）。 从位置分布确定频率（34），并将其与定义的频率值进行比较（35）。 在频率突然或明显的变化中，识别出警报事件（36）。 包括用于与扩散器一起使用的涡轮机的独立权利要求。