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公开(公告)号：US09404386B2
公开(公告)日：2016-08-02
申请号：US14089995
申请日：2013-11-26
Applicant: General Electric Company
Inventor： Prashanth D'Souza , Venkatesh Rajagopalan
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：US20190128200A1
公开(公告)日：2019-05-02
申请号：US15797555
申请日：2017-10-30
Applicant: General Electric Company
Inventor： Sharad Nagappa , Rahul Srinivas Prabhu , Adam Edgar Klingbeil , Prashanth D'Souza
IPC: F02D41/14
CPC classification number: F02D41/1498 , F02D35/024 , F02D35/027 , F02D35/028 , F02D41/009 , F02D41/028 , F02D2041/286
Abstract: A reciprocating engine system includes a cylinder, a piston disposed within the cylinder, a knock sensor disposed proximate to the cylinder and configured to detect vibrations of the cylinder, piston, or both, a crankshaft sensor configured to sense a crank angle of a crankshaft, and a controller communicatively coupled to the knock sensor and the crankshaft sensor. The controller is configured to receive a raw knock signal from the knock sensor and a crank angle signal from the crankshaft sensor corresponding to vibrations of the cylinder, piston, or both relative to the crank angle of the crankshaft, convert the raw knock signal into a digital value signal, and at least one of a crank angle for a start of combustion, a peak firing pressure, a percentage of fuel mass fraction burn, or a combination thereof, based on the digital value signal and the crank angle.
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公开(公告)号：US10018596B2
公开(公告)日：2018-07-10
申请号：US15061505
申请日：2016-03-04
Applicant: General Electric Company
Inventor： Nilesh Tralshawala , Prashanth D'Souza , Ravi Yoganatha Babu
IPC: G01N29/14
CPC classification number: G01N29/14 , G01N29/12 , G01N29/4445 , G01N29/46 , G01N2291/014 , G01N2291/0258 , G01N2291/044 , G01N2291/2693
Abstract: This disclosure provides systems and methods for using a health monitoring system with acoustic emissions (AE) signals and the resonance frequency of the damage state of a component in a machine to monitor component health. AE signals collected from sensors on an operating machine are analyzed to identify signal features or events that correspond to component resonance frequencies. The AE signal features proximate to the component resonance frequencies and how those features and the component resonance frequency changes over time enable the identification and monitoring of damage states, such as cracks in the stator vanes of a compressor, gas turbine, steam turbine, or generator.
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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：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：US20170254783A1
公开(公告)日：2017-09-07
申请号：US15061505
申请日：2016-03-04
Applicant: General Electric Company
Inventor： Nilesh Tralshawala , Prashanth D'Souza , Ravi Yoganatha Babu
IPC: G01N29/14
CPC classification number: G01N29/14 , G01N29/12 , G01N29/4445 , G01N29/46 , G01N2291/014 , G01N2291/0258 , G01N2291/044 , G01N2291/2693
Abstract: This disclosure provides systems and methods for using a health monitoring system with acoustic emissions (AE) signals and the resonance frequency of the damage state of a component in a machine to monitor component health. AE signals collected from sensors on an operating machine are analyzed to identify signal features or events that correspond to component resonance frequencies. The AE signal features proximate to the component resonance frequencies and how those features and the component resonance frequency changes over time enable the identification and monitoring of damage states, such as cracks in the stator vanes of a compressor, gas turbine, steam turbine, or generator.
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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：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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