Patents by Inventor Aninda Bhattacharya
Aninda Bhattacharya has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20140188430Abstract: 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.Type: ApplicationFiled: December 31, 2012Publication date: July 3, 2014Applicant: GENERAL ELECTRIC COMPANYInventors: Prashanth D'Souza, Vivek Venugopal Badami, Rahul Srinivas Prabhu, Mahalakshmi Shunmugam Balasubramaniam, Ajay Kumar Behera, Aninda Bhattacharya, Venkatesh Rajagopalan
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Patent number: 8718953Abstract: A method for monitoring the health of one or more blades is presented. The method includes the steps of generating a signal representative of delta times of arrival corresponding to the rotating blade, generating a reconstructed signal by decomposing the signal representative of the delta times of arrival utilizing a multi-resolution analysis technique, wherein the reconstructed signal is representative of at least one of static deflection and dynamic deflection in the rotating blade.Type: GrantFiled: April 28, 2011Date of Patent: May 6, 2014Assignee: General Electric CompanyInventors: Venkatesh Rajagopalan, Vivek Venugopal Badami, Rahul Srinivas Prabhu, Ajay Kumar Behera, Aninda Bhattacharya
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Publication number: 20140119889Abstract: 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.Type: ApplicationFiled: October 31, 2012Publication date: May 1, 2014Applicant: GENERAL ELECTRIC COMPANYInventors: Rahul Srinivas Prabhu, Mahalakshmi Shunmugam Balasubramaniam, Ajay Kumar Behera, Aninda Bhattacharya, Venkatesh Rajagopalan, Prashanth D'Souza, Vivek Venugopal Badami
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Patent number: 8676514Abstract: A method for monitoring the health of a plurality of blades is presented. The method includes determining delta TOAs corresponding to the plurality of blades, determining a standard deviation utilizing the delta TOAs corresponding to the plurality of blades, determining a delta sigma—1 utilizing the standard deviation and an initial standard deviation, determining a normalized delta TOA corresponding to one or more of the plurality of blades utilizing the delta sigma—1, determining a standard deviation of the normalized delta TOA, determining a delta sigma—2 utilizing the standard deviation of the normalized delta TOA and a previous standard deviation of normalized delta TOA, and determining a corrected delta TOA corresponding to the one or more of the plurality of blades based upon the delta sigma—2.Type: GrantFiled: June 29, 2010Date of Patent: March 18, 2014Assignee: General Electric CompanyInventors: Venkatesh Rajagopalan, Vivek Venugopal Badami, Rahul Srinivas Prabhu, Ajay Kumar Behera, Aninda Bhattacharya
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Patent number: 8543341Abstract: A method for monitoring the health of one or more blades is presented. The method includes the steps of determining a delta TOA corresponding to each of the one or more blades based upon respective actual time of arrival (TOA) of the one or more blades, determining a normalized delta TOA corresponding to each of the one or more blades by removing effects of one or more operational data from the delta TOA, and determining a corrected delta TOA corresponding to each of the one or more blades by removing effects of reseating of the one or more blades from the normalized delta TOA.Type: GrantFiled: June 29, 2010Date of Patent: September 24, 2013Assignee: General Electric CompanyInventors: Venkatesh Rajagopalan, Vivek Venugopal Badami, Rahul Srinivas Prabhu, Ajay Kumar Behera, Aninda Bhattacharya
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Patent number: 8532939Abstract: A system is presented. The system includes a data acquisition system that generates time of arrival (TOA) data corresponding to a plurality of blades in a device, a central processing subsystem that determines features of each of the plurality of blades utilizing the TOA data, and evaluates the health of each of the plurality of blades based upon the determined features.Type: GrantFiled: August 31, 2010Date of Patent: September 10, 2013Assignee: General Electric CompanyInventors: Aninda Bhattacharya, Vinay Bhaskar Jammu, Vivek Venugopal Badami, Venkatesh Rajagopalan, Rahul Srinivas Prabhu, Ajay Kumar Behera, Nidhi Naithani, Mahalakshmi Shunumugam Balasubramaniam
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Patent number: 8505364Abstract: A system for use in monitoring operation of a rotor assembly is provided. The system includes a plurality of clearance sensors including at least a first clearance sensor configured to measure a distance between the first sensor and a surface of a lockwire tab, and a monitoring unit coupled to the plurality of clearance sensors, the monitoring unit configured to receive measurements from the plurality of clearance sensors, and determine whether a crack exists in the rotor assembly based on the received measurements.Type: GrantFiled: November 4, 2011Date of Patent: August 13, 2013Assignee: General Electric CompanyInventors: Thomas James Batzinger, Vivek Venugopal Badami, Wangming Lu, Scott Mordin Hoyte, Mandar Diwakar Godbole, Ravi Yoganatha Babu, Aninda Bhattacharya, Jacob John Kittleson
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Publication number: 20130111982Abstract: A system for use in monitoring operation of a rotor assembly is provided. The system includes a plurality of clearance sensors including at least a first clearance sensor configured to measure a distance between the first sensor and a surface of a lockwire tab, and a monitoring unit coupled to the plurality of clearance sensors, the monitoring unit configured to receive measurements from the plurality of clearance sensors, and determine whether a crack exists in the rotor assembly based on the received measurements.Type: ApplicationFiled: November 4, 2011Publication date: May 9, 2013Inventors: Thomas James Batzinger, Vivek Venugopal Badami, Wangming Lu, Scott Mordin Hoyte, Mandar Diwakar Godbole, Ravi Yoganatha Babu, Aninda Bhattacharya, Jacob John Kittleson
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Publication number: 20130082833Abstract: A method for monitoring health of airfoils is disclosed. The method comprises generating at least one feature alarm for a blade by fusing a plurality of features corresponding to the blade utilizing a fuzzy inference method. The fuzzy inference method comprises generating a plurality of intermediate values by fusing one or more combinations of the plurality of features utilizing a fuzzy logic method, and fusing the plurality of intermediate values utilizing a second level fuzzy logic method, wherein the at least one feature alarm is representative of the health of the blade.Type: ApplicationFiled: September 30, 2011Publication date: April 4, 2013Applicant: GENERAL ELECTRIC COMPANYInventors: Aninda Bhattacharya, Vivek Venugopal Badami, Rahul Srinivas Prabhu, Ajay Kumar Behera, Venkatesh Rajagopalan
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Publication number: 20120278004Abstract: A method for monitoring the health of one or more blades is presented. The method includes the steps of generating a signal representative of delta times of arrival corresponding to the rotating blade, generating a reconstructed signal by decomposing the signal representative of the delta times of arrival utilizing a multi-resolution analysis technique, wherein the reconstructed signal is representative of at least one of static deflection and dynamic deflection in the rotating blade.Type: ApplicationFiled: April 28, 2011Publication date: November 1, 2012Applicant: GENERAL ELECTRIC COMPANYInventors: Venkatesh Rajagopalan, Vivek Venugopal Badami, Rahul Srinivas Prabhu, Ajay Kumar Behera, Aninda Bhattacharya
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Publication number: 20120245860Abstract: A system including a plurality of sensing devices configured to generate acoustic emission (AE) signals that are representative of acoustic emission waves propagating through a plurality of stator vanes is presented. The system further includes a processing subsystem that is in an operational communication with the plurality of sensing devices, and the processing subsystem is configured to generate a dynamic threshold based upon an initial threshold and the AE signals, determine whether a plurality of signals of interest exist in the AE signals based upon the dynamic threshold, extract the plurality of signals of interest from the AE signals based upon the dynamic threshold, determine one or more features corresponding to the plurality of signals of interest, and analyze the one or more features to monitor and validate the health of the plurality of stator vanes.Type: ApplicationFiled: April 30, 2012Publication date: September 27, 2012Applicant: GENERAL ELECTRIC COMPANYInventors: Bhasker Rao Keely, Aninda Bhattacharya, Ravi Yoganatha Babu, Nilesh Tralshawala
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Publication number: 20110320138Abstract: A method for monitoring the health of a plurality of blades is presented. The method includes determining delta TOAs corresponding to the plurality of blades, determining a standard deviation utilizing the delta TOAs corresponding to the plurality of blades, determining a delta sigma—1 utilizing the standard deviation and an initial standard deviation, determining a normalized delta TOA corresponding to one or more of the plurality of blades utilizing the delta sigma—1, determining a standard deviation of the normalized delta TOA, determining a delta sigma—2 utilizing the standard deviation of the normalized delta TOA and a previous standard deviation of normalized delta TOA, and determining a corrected delta TOA corresponding to the one or more of the plurality of blades based upon the delta sigma—2.Type: ApplicationFiled: June 29, 2010Publication date: December 29, 2011Applicant: GENERAL ELECTRIC COMPANYInventors: Venkatesh Rajagopalan, Vivek Venugopal Badami, Rahul Srinivas Prabhu, Ajay Kumar Behera, Aninda Bhattacharya
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Publication number: 20110320137Abstract: A method for monitoring the health of one or more blades is presented. The method includes the steps of determining a delta TOA corresponding to each of the one or more blades based upon respective actual time of arrival (TOA) of the one or more blades, determining a normalized delta TOA corresponding to each of the one or more blades by removing effects of one or more operational data from the delta TOA, and determining a corrected delta TOA corresponding to each of the one or more blades by removing effects of reseating of the one or more blades from the normalized delta TOA.Type: ApplicationFiled: June 29, 2010Publication date: December 29, 2011Applicant: GENERAL ELECTRIC COMPANYInventors: Venkatesh Rajagopalan, Vivek Venugopal Badami, Rahul Srinivas Prabhu, Ajay Kumar Behera, Aninda Bhattacharya
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Patent number: 7941281Abstract: A system for rotor blade health monitoring include time of arrival (TOA) sensors and a controller comprising a processor configured for obtaining TOA signals indicative of times of arrival of rotating rotor blades from the respective TOA sensors and for determining initial features from the TOA signals; and a feature level fuser configured for fusing the initial features received from the processor for use in evaluating health of the rotating rotor blades.Type: GrantFiled: December 22, 2008Date of Patent: May 10, 2011Assignee: General Electric CompanyInventors: Sudhanshu Rai, Vinay Bhaskar Jammu, Vivek Venugopal Badami, Achalesh Kumar Pandey, Rahul Srinivas Prabhu, Ajay Kumar Behera, Aninda Bhattacharya, Venkatesh Rajagopalan, Nidhi Naithani
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Publication number: 20110010108Abstract: A system is presented. The system includes a data acquisition system that generates time of arrival (TOA) data corresponding to a plurality of blades in a device, a central processing subsystem that determines features of each of the plurality of blades utilizing the TOA data, and evaluates the health of each of the plurality of blades based upon the determined features.Type: ApplicationFiled: August 31, 2010Publication date: January 13, 2011Applicant: GENERAL ELECTRIC COMPANYInventors: Aninda Bhattacharya, Vinay Bhaskar Jammu, Vivek Venugopal Badami, Venkatesh Rajagopalan, Rahul Srinivas Prabhu, Ajay Kumar Behera, Nidhi Naithani, Mahalakshmi Shunumugam Balasubramaniam
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Publication number: 20100161245Abstract: A system for rotor blade health monitoring include time of arrival (TOA) sensors and a controller comprising a processor configured for obtaining TOA signals indicative of times of arrival of rotating rotor blades from the respective TOA sensors and for determining initial features from the TOA signals; and a feature level fuser configured for fusing the initial features received from the processor for use in evaluating health of the rotating rotor blades.Type: ApplicationFiled: December 22, 2008Publication date: June 24, 2010Applicant: GENERAL ELECTRIC COMPANYInventors: Sudhanshu Rai, Vinay Bhaskar Jammu, Vivek Venugopal Badami, Achalesh Kumar Pandey, Rahul Srinivas Prabhu, Ajay Kumar Behera, Aninda Bhattacharya, Venkatesh Rajagopalan, Nidhi Naithani