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公开(公告)号：US09250056B2
公开(公告)日：2016-02-02
申请号：US13731596
申请日：2012-12-31
Applicant: General Electric Company
Inventor： Prashanth D'Souza , Vivek Venugopal Badami , Rahul Srinivas Prabhu , Mahalakshmi Shunmugam Balasubramaniam , Ajay Kumar Behera , Aninda Bhattacharya , Venkatesh Rajagopalan
Abstract: A method is presented. The method includes the steps of generating rotation signals corresponding to a plurality of rotations of a rotor physically coupled to a plurality of blades, and determining peak voltages corresponding to the plurality of blades by applying time synchronous averaging technique to blade passing signals using the rotation signals, wherein the peak voltages are representative of clearances of the plurality of blades.
Abstract translation: 提出了一种方法。 该方法包括以下步骤：产生对应于物理耦合到多个叶片的转子的多个旋转的旋转信号，并且通过使用时间同步平均技术来确定与多个叶片对应的峰值电压，使用旋转信号 ，其中所述峰值电压代表所述多个叶片的间隙。
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公开(公告)号：US20140188430A1
公开(公告)日：2014-07-03
申请号：US13731596
申请日：2012-12-31
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Prashanth D'Souza , Vivek Venugopal Badami , Rahul Srinivas Prabhu , Mahalakshmi Shunmugam Balasubramaniam , Ajay Kumar Behera , Aninda Bhattacharya , Venkatesh Rajagopalan
IPC: G01B7/14
Abstract: A method is presented. The method includes the steps of generating rotation signals corresponding to a plurality of rotations of a rotor physically coupled to a plurality of blades, and determining peak voltages corresponding to the plurality of blades by applying time synchronous averaging technique to blade passing signals using the rotation signals, wherein the peak voltages are representative of clearances of the plurality of blades.
Abstract translation: 提出了一种方法。 该方法包括以下步骤：产生对应于物理耦合到多个叶片的转子的多个旋转的旋转信号，并且通过使用时间同步平均技术来确定与多个叶片对应的峰值电压，使用旋转信号 ，其中所述峰值电压代表所述多个叶片的间隙。
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公开(公告)号：US09719366B2
公开(公告)日：2017-08-01
申请号：US13916179
申请日：2013-06-12
Applicant: General Electric Company
Inventor： Lijie Yu , Venkatesh Rajagopalan , Sachin Srivastava , Mayank Lalan
CPC classification number: F01D11/14 , F01D11/20 , F01D17/02 , F01D21/003 , F01D21/04 , F01D21/045 , F01D21/10 , F01D21/14
Abstract: Systems and methods for blade health monitoring are provided. According to one embodiment of the disclosure, a system may include a feature extraction module and an anomaly detection module in communication with the extraction module. The feature extraction module may be configured to continuously receive blade passing signal data associated with clearance of a blade and pre-process the blade passing signal data. Blade clearance feature data may be extracted from the blade passing signal data prior to transmission to the anomaly detection module. The anomaly detection module may be configured to normalize the blade clearance feature data received from the extraction module, analyze the blade clearance feature data to detect a shift in the clearance of the blade, and determine an abnormality of the blade based on the shift exceeding a predetermined shift threshold.
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公开(公告)号：US09657588B2
公开(公告)日：2017-05-23
申请号：US14140634
申请日：2013-12-26
Applicant: General Electric Company
Inventor： Mahesh Raveendranatha Panicker , Ajay Kumar Behera , Venkatesh Rajagopalan , Venkatarao Ryali , Vivek Venugopal Badami , Budhaditya Hazra
CPC classification number: F01D21/003 , F05D2260/80 , F05D2270/304 , F05D2270/80
Abstract: A system for monitoring health of a rotor is presented. The system includes a processing subsystem that generates a measurement matrix based upon a plurality of resonant-frequency first delta times of arrival vectors corresponding to a blade and a first sensing device, and a plurality of resonant-frequency second delta times of arrival vectors corresponding to the blade and a second sensing device, generates a resonant matrix based upon the measurement matrix such that entries in the resonant matrix are substantially linearly uncorrelated and linearly independent, and generates a resonance signal using a first subset of the entries of the resonant matrix, wherein the resonance signal substantially comprises common observations and components of the plurality of resonant-frequency first delta times of arrival vectors and the plurality of resonant-frequency second delta times of arrival vectors.
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公开(公告)号：US09250153B2
公开(公告)日：2016-02-02
申请号：US13665135
申请日：2012-10-31
Applicant: General Electric Company
Inventor： Rahul Srinivas Prabhu , Mahalakshmi Shunmugam Balasubramaniam , Ajay Kumar Behera , Aninda Bhattacharya , Venkatesh Rajagopalan , Prashanth D'Souza , Vivek Venugopal Badami
CPC classification number: G01M5/0083 , G01B7/14 , G01M5/0091
Abstract: A system is disclosed. The system includes a processing subsystem that determines preliminary voltages corresponding to a plurality of blades based upon blade passing signals (BPS), and generates a plurality of clearance values by normalizing the preliminary voltages for effects of one or more operational parameters, wherein the plurality of clearance values are representative of clearance of the plurality of blades.
Abstract translation: 公开了一种系统。 该系统包括处理子系统，其基于叶片通过信号（BPS）确定与多个叶片相对应的初步电压，并且通过对初始电压进行归一化以产生多个间隙值以用于一个或多个操作参数的影响，其中， 间隙值代表多个叶片的间隙。
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Patent Agency Ranking
公开(公告)号：US20150184536A1
公开(公告)日：2015-07-02
申请号：US14140634
申请日：2013-12-26
Applicant: General Electric Company
Inventor： Mahesh Raveendranatha Panicker , Ajay Kumar Behera , Venkatesh Rajagopalan , Venkatarao Ryali , Vivek Venugopal Badami , Budhaditya Hazra
IPC: F01D21/00
CPC classification number: F01D21/003 , F05D2260/80 , F05D2270/304 , F05D2270/80
Abstract: A system for monitoring health of a rotor is presented. The system includes a processing subsystem that generates a measurement matrix based upon a plurality of resonant-frequency first delta times of arrival vectors corresponding to a blade and a first sensing device, and a plurality of resonant-frequency second delta times of arrival vectors corresponding to the blade and a second sensing device, generates a resonant matrix based upon the measurement matrix such that entries in the resonant matrix are substantially linearly uncorrelated and linearly independent, and generates a resonance signal using a first subset of the entries of the resonant matrix, wherein the resonance signal substantially comprises common observations and components of the plurality of resonant-frequency first delta times of arrival vectors and the plurality of resonant-frequency second delta times of arrival vectors.
Abstract translation: 提出了一种用于监测转子健康状况的系统。 该系统包括处理子系统，该处理子系统基于对应于刀片和第一感测装置的多个到达频率的多个谐振频率第一增量时间向量生成测量矩阵，以及对应于多个谐振频率的到达向量的多个谐振频率第二增量时间 叶片和第二感测装置基于测量矩阵产生谐振矩阵，使得谐振矩阵中的条目基本上线性地不相关和线性独立，并且使用共振矩阵的条目的第一子集来生成谐振信号，其中 谐振信号基本上包括多个谐振频率的第一增量时间到达矢量和多个谐振频率第二增量时间到达矢量的共同观测值和分量。
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公开(公告)号：US10906670B2
公开(公告)日：2021-02-02
申请号：US16306929
申请日：2017-05-23
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Deepika Sachdeva , Raji Reddy , Chithra Parayalil , Anshul Kaushik , Saratchandra Shanmukh , Venkatesh Rajagopalan
Abstract: A method for determining a condition of a second component of an engine is disclosed wherein the engine includes at least a first component and the second component. The method includes determining a concentration value of a chemical species in an effluent obtained from washing at least a portion of the first component of the engine, inputting the concentration value of the chemical species in a condition assessment model to update the condition assessment model, and estimating the condition of the second component based on an output of the updated condition assessment model. The effluent used herein includes a wash fluid and the chemical species. The second component is different from the first component and the condition assessment model is a representative of a condition of the second component of the engine.
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公开(公告)号：US20150226081A1
公开(公告)日：2015-08-13
申请号：US14089995
申请日：2013-11-26
Applicant: General Electric Company
Inventor： Prashanth D'Souza , Venkatesh Rajagopalan
IPC: F01D21/00
CPC classification number: F01D21/003 , F01D5/005 , G01M5/0016 , G01M5/0033
Abstract: A method comprising the steps of determining normalized delta times of arrival corresponding to a plurality of blades based upon actual times of arrival corresponding to the plurality of blades, and determining static deflections of the plurality of blades by removing effects of one or more common factors from the normalized delta times of arrival corresponding to the plurality of blades.
Abstract translation: 一种方法，包括以下步骤：基于与所述多个刀片相对应的实际到达时间来确定对应于多个刀片的归一化的到达时间的到达次数，以及通过从一个或多个刀片的一个或多个常见因素中除去多个刀片的影响来确定所述多个刀片的静态偏转 对应于多个叶片的归一化的到达时间。
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公开(公告)号：US20150184533A1
公开(公告)日：2015-07-02
申请号：US14140654
申请日：2013-12-26
Applicant: General Electric Company
Inventor： Mahesh Raveendranatha Panicker , Ajay Kumar Behera , Venkatesh Rajagopalan , Venkatarao Ryali , Vivek Venugopal Badami , Budhaditya Hazra
IPC: F01D17/06
CPC classification number: F01D17/06 , F01D21/003 , F01D21/14
Abstract: A system for monitoring health of a rotor is presented. The system includes a processing subsystem that generates a plurality of frequency peak values corresponding to two or more respective windows of signals by iteratively shifting the two or more respective windows of signals along delta times of arrival signals corresponding to a blade in the rotor, determines one or more resonant-frequency rotor speeds ranges of the blade by identifying rotor speeds corresponding to a subset of the plurality of frequency peak values, and monitors the blade to determine a presence of one or more defects in the blade during the resonant-frequency rotor speeds regions.
Abstract translation: 提出了一种用于监测转子健康状况的系统。 该系统包括一个处理子系统，其通过相对于转子中的叶片的三角倍数到达信号迭代地移位两个或更多个相应的信号窗口来产生对应于两个或更多个相应信号窗口的多个频率峰值，确定一个 通过识别与多个频率峰值的子集相对应的转子速度，并且监视叶片以确定在共振频率转子速度期间叶片中的一个或多个缺陷的存在，从而确定叶片的更多或更多的共振频率转子速度范围 地区。
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公开(公告)号：US20140119889A1
公开(公告)日：2014-05-01
申请号：US13665135
申请日：2012-10-31
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Rahul Srinivas Prabhu , Mahalakshmi Shunmugam Balasubramaniam , Ajay Kumar Behera , Aninda Bhattacharya , Venkatesh Rajagopalan , Prashanth D'Souza , Vivek Venugopal Badami
CPC classification number: G01M5/0083 , G01B7/14 , G01M5/0091
Abstract: A system is disclosed. The system includes a processing subsystem that determines preliminary voltages corresponding to a plurality of blades based upon blade passing signals (BPS), and generates a plurality of clearance values by normalizing the preliminary voltages for effects of one or more operational parameters, wherein the plurality of clearance values are representative of clearance of the plurality of blades.
Abstract translation: 公开了一种系统。 该系统包括处理子系统，其基于叶片通过信号（BPS）确定与多个叶片相对应的初步电压，并且通过对初始电压进行归一化以产生多个间隙值以用于一个或多个操作参数的影响，其中， 间隙值代表多个叶片的间隙。
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