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公开(公告)号：US10316772B2
公开(公告)日：2019-06-11
申请号：US14967062
申请日：2015-12-11
发明人： Paul Lloyd Flynn , Aninda Bhattacharya , Ganesasubramanian Murugesan , Milan Palinda Karunaratne , Daniel Cullen
摘要： Various methods and systems are provided for an engine capable of receiving liquid and gaseous fuel. In one example, cylinder misfire may be identified based on a misfire monitor. The misfire monitor may detect misfire based on signals from a crankshaft sensor.
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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
发明人： Prashanth D'Souza , Vivek Venugopal Badami , Rahul Srinivas Prabhu , Mahalakshmi Shunmugam Balasubramaniam , Ajay Kumar Behera , Aninda Bhattacharya , Venkatesh Rajagopalan
摘要： 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.
摘要翻译： 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
发明人： Prashanth D'Souza , Vivek Venugopal Badami , Rahul Srinivas Prabhu , Mahalakshmi Shunmugam Balasubramaniam , Ajay Kumar Behera , Aninda Bhattacharya , Venkatesh Rajagopalan
IPC分类号： G01B7/14
摘要： 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.
摘要翻译： 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：US20200149655A1
公开(公告)日：2020-05-14
申请号：US16603434
申请日：2018-04-06
发明人： Bhasker Rao Keely , Aninda Bhattacharya , Ajay Kumar Behera , Shivanand Bhavikatti , Christopher Taylor Herman , Sudipta Mal
摘要： A method for monitoring health of a valve is presented. The method includes receiving an acoustic emission signal from a sensing device operatively coupled to the valve, selecting a region of interest signal in the acoustic emission signal, determining a plurality of current parameters based on the region of interest signal, and monitoring the health of the valve based on at least the plurality of current parameters, wherein the region of interest signal comprises acoustic emission data generated from initiation of an opening of the valve until the valve is partially opened.
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公开(公告)号：US10227937B2
公开(公告)日：2019-03-12
申请号：US14931906
申请日：2015-11-04
发明人： Aninda Bhattacharya , Bret Dwayne Worden , Ajay Kumar Behera , Mahesh Panicker , Wrichik Basu , Matthew John Malone , Arwa Hatim Ginwala
摘要： Various methods and systems are provided for detecting a change in turbocharger performance. In one example, a method comprises determining a level of turbocharger imbalance based on output from a turbine speed sensor and generating a signal related to a change in a performance level of the turbocharger if the level of turbocharger imbalance is greater than a threshold.
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公开(公告)号：US09983087B2
公开(公告)日：2018-05-29
申请号：US14565981
申请日：2014-12-10
发明人： Mahesh Raveendranatha Panicker , Aninda Bhattacharya , Akshay Krishnamurty Ambekar , Bret Dwayne Worden
摘要： A system is presented. The system includes a stator component, a rotor component rotating inside the stator component, a plurality of features disposed on the periphery of the stator component or the rotor component, and a processing subsystem for determining at least one of an amount of rotor imbalance and an orientation of the rotor imbalance at least based upon feature-to-feature speed variation of the plurality of features.
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公开(公告)号：US20170122230A1
公开(公告)日：2017-05-04
申请号：US14931906
申请日：2015-11-04
发明人： Aninda Bhattacharya , Bret Dwayne Worden , Ajay Kumar Behera , Mahesh Panicker , Wrichik Basu , Matthew John Malone , Arwa Hatim Ginwala
IPC分类号： F02D41/00
CPC分类号： F02D41/0007 , F02B39/16 , F02D17/04 , F02D41/221 , F02D2041/288 , Y02T10/144 , Y02T10/40
摘要： Various methods and systems are provided for detecting a change in turbocharger performance. In one example, a method comprises determining a level of turbocharger imbalance based on output from a turbine speed sensor and generating a signal related to a change in a performance level of the turbocharger if the level of turbocharger imbalance is greater than a threshold.
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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
发明人： Rahul Srinivas Prabhu , Mahalakshmi Shunmugam Balasubramaniam , Ajay Kumar Behera , Aninda Bhattacharya , Venkatesh Rajagopalan , Prashanth D'Souza , Vivek Venugopal Badami
CPC分类号： G01M5/0083 , G01B7/14 , G01M5/0091
摘要： 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.
摘要翻译： 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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公开(公告)号：US09574965B2
公开(公告)日：2017-02-21
申请号：US14313734
申请日：2014-06-24
摘要： A monitoring system and method monitor changes in clearance distances between a sensor and a rotating component of a machine. Imbalance and/or wear in the machine is identified based on the changes in the clearance distances. The system and method optionally both measure the clearance distances and a rotating speed of the rotating component of the machine with the same sensor. In order to identify imbalance in the machine, a spectral energy of the machine can be calculated based on the changes in the clearance distances, and the imbalance in the machine can be identified based on the spectral energy. The system and method can determine a trigger speed of the machine that is associated with the wear in the machine based on the changes in the clearance distance. A remaining useful life of the machine can be estimated based on changes in the trigger speed.
摘要翻译： 监测系统和方法监测传感器和机器的旋转部件之间的间隙距离的变化。 基于间隙距离的变化来识别机器中的不平衡和/或磨损。 该系统和方法可选地使用相同的传感器来测量机器的旋转部件的间隙距离和转速。 为了识别机器的不平衡，可以基于间隙距离的变化来计算机器的光谱能量，并且可以基于光谱能量来识别机器的不平衡。 该系统和方法可以基于间隙距离的变化来确定与机器磨损相关的机器的触发速度。 可以根据触发速度的变化来估算机器的剩余使用寿命。
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公开(公告)号：US09476318B2
公开(公告)日：2016-10-25
申请号：US14016930
申请日：2013-09-03
发明人： Senthilkumar Datchanamoorthy , Michael Allen Ball , Aninda Bhattacharya , Venkata Ramana Murthy Hemadribhotla
CPC分类号： F01D21/003 , F01D11/14 , G01B7/14 , G01B21/16 , G01M15/14
摘要： A method is presented. The method includes selecting a first window of signals and a second window of signals from clearance signals representative of clearances between a rotating component and a stationary casing surrounding the rotating component, determining a first signed average power value corresponding to the first window of signals, and a second signed average power value corresponding to the second window of signals, determining a resultant value based upon the first signed average power value and the second signed average power value, and determining one or more defects or potential defects in the rotating component based upon the resultant value.
摘要翻译： 提出了一种方法。 该方法包括从表示旋转部件和围绕旋转部件的固定壳体之间的间隙的间隙信号中选择信号的第一窗口和第二窗口信号，确定对应于第一信号窗口的第一带符号平均功率值，以及 对应于所述第二窗信号的第二有符号平均功率值，基于所述第一有符号平均功率值和所述第二带符号平均功率值确定合成值，以及基于所述第二有效平均功率值确定所述旋转分量中的一个或多个缺陷或潜在缺陷， 结果值。
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