Patents by Inventor Ananda Barua

Ananda Barua 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).

  • Publication number: 20220143922
    Abstract: A method of predicting a post-sintering geometry of a green body part includes determining stress differentiating material properties of a material configuration of the green body part by physically measuring the stress differentiating material properties of the material configuration and identifying a plurality of stress regions in the green body part via a first sintering analysis of the green body part. Each stress region is associated with a portion of the green body part subjected to a particular stress state during sintering. The method also includes assigning different sets of stress differentiating material properties to each of the plurality of stress regions to form a stress-simulated green body part and predicting the post-sintering geometry via a second sintering analysis of the stress-simulated green body part.
    Type: Application
    Filed: November 9, 2020
    Publication date: May 12, 2022
    Applicant: GENERAL ELECTRIC COMPANY
    Inventor: Ananda Barua
  • Publication number: 20220143694
    Abstract: A method of generating a distortion-compensated geometry for a workpiece includes generating a green body part geometry for the workpiece, discretizing the green body part geometry into a green body part mesh and performing a first sintering analysis on the green body part mesh to generate a post-sintering mesh based on the green body part mesh, the post-sintering mesh including a plurality of post-sintering mesh nodes. The method also includes co-registering the post-sintering mesh and a model mesh having a geometry corresponding to the three-dimensional model, the model mesh including a plurality of model mesh nodes. For each of the plurality of post-sintering mesh nodes, a displacement between a post-sintering mesh node and a corresponding model mesh nodes is determined, and the green body mesh may be adjusted based on the displacement to generate the distortion-compensated geometry.
    Type: Application
    Filed: November 9, 2020
    Publication date: May 12, 2022
    Applicant: GENERAL ELECTRIC COMPANY
    Inventor: Ananda Barua
  • Patent number: 11314231
    Abstract: An industrial asset item definition data store may contain at least one electronic record defining the industrial asset item. An automated support structure creation platform may include a support structure optimization computer processor. The automated support structure optimization computer processor may be adapted to automatically create support structure geometry data associated with an additive printing process for the industrial asset item. The creation may be performed via an iterative loop between a build process simulation engine and a topology optimization engine.
    Type: Grant
    Filed: September 12, 2017
    Date of Patent: April 26, 2022
    Assignee: General Electric Company
    Inventors: Ananda Barua, Sathyanarayanan Raghavan, Arun Karthi Subramaniyan, Changjie Sun, Arvind Rangarajan
  • Patent number: 11308249
    Abstract: A method, medium, and system to receive a specification defining a model of a part to be produced by an additive manufacturing (AM) process; execute an AM simulation on the model of the part to determine a prediction of thermal distortions to the part; execute a topology optimization (TO) to create TO supports that counteract the predicted thermal distortions; generate at least one rule-based support based on a geometry of the part to interface with the part at one or more regions other than the TO supports; combining the TO supports and the at least one rule-based support to generate a set of hybrid supports; save a record of the set of hybrid supports; and transmit the record of the set of hybrid supports to an AM controller to control an AM system to generate a support structure for an AM production of the part.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: April 19, 2022
    Assignee: General Electric Company
    Inventors: Sathyanarayanan Raghavan, Ananda Barua, Evan Dozier, Joseph Block, Brendon Leary, Prabhjot Singh, Arvind Rangarajan, Changjie Sun, Dean Robinson
  • Patent number: 11221610
    Abstract: A method and system to receive a specification defining a model of a part to be produced by an additive manufacturing (AM) process; define a design space to enclose the part and a support structure for the part, the support structure to support the part and printed with the part during the AM process; execute an iterative topology optimization(TO) based at least in part on the specification for the part and the defined design space, to generate a TO support structure that counteracts predicted gravity-based distortions during the AM process; save a record of the generated TO support structure; and transmit the record of the TO support structure to an AM controller, the AM controller to control an AM system to generate an instance of the part and the TO support structure based on the record.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: January 11, 2022
    Assignee: General Electric Company
    Inventors: Ananda Barua, Changjie Sun, Sathyanarayanan Raghavan
  • Patent number: 11182520
    Abstract: A method, medium, and system to execute an additive manufacturing (AM) simulation on a model of a part; determine, based on the AM simulation, a prediction of a temperature and displacement distribution in the part at a particular time in the AM process; apply the predicted temperature and displacement distributions in the part as a boundary conditions on a support design space to determine a temperature distribution throughout the support design space; and execute a thermal-structural topology optimization based on the determined temperature and displacement distributions throughout the support design space to determine a distribution of material in the design space for a thermal support structure to interface with the part that optimally reduces a thermal gradient in the part with a minimum of material and results in the generation of an optimized AM support structure.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: November 23, 2021
    Assignee: General Electric Company
    Inventors: Sathyanarayanan Raghavan, Ananda Barua, Prabhjot Singh, Arvind Rangarajan, Changjie Sun, Dean Robinson
  • Patent number: 11079738
    Abstract: According to some embodiments, a system may include a design experience data store containing electronic records associated with prior industrial asset item designs. A deep learning model platform, coupled to the design experience data store, may include a communication port to receive constraint and load information from a designer device. The deep learning platform may further include a computer processor adapted to automatically and generatively create boundaries and geometries, using a deep learning model associated with an additive manufacturing process, for an industrial asset item based on the prior industrial asset item designs and the received constraint and load information. According to some embodiments, the deep learning model computer processor is further to receive design adjustments from the designer device. The received design adjustments might be for example, used to execute an optimization process and/or be fed back to continually re-train the deep learning model.
    Type: Grant
    Filed: August 16, 2017
    Date of Patent: August 3, 2021
    Assignee: General Electric Company
    Inventors: Arun Karthi Subramaniyan, Ananda Barua, Daniel Erno
  • Patent number: 11000900
    Abstract: A method includes assembling a setter assembly onto a binder-jet printed part, wherein the setter assembly includes a base, a top setter, a bottom setter positioned between the base and the top setter, and a support pin extending between the base and the top setter having a terminus that abuts an inward facing surface of the top setter, such that at least portion of the binder-jet printed part is nested between the top setter and the bottom setter. The method includes heating the binder-jet printed part and the setter assembly to debind or sinter the binder-jet printed part, wherein a length of the support pin decreases in response to the heating to move the top setter toward the base.
    Type: Grant
    Filed: June 3, 2020
    Date of Patent: May 11, 2021
    Assignee: General Electric Company
    Inventors: Ananda Barua, Sathyanarayanan Raghavan, Ken Salas Nobrega, Vadim Bromberg, Arunkumar Natarajan
  • Patent number: 10940535
    Abstract: A binder jet printed article includes a part having a top portion, a bottom portion, and an overhang extending from the top portion and a support structure formed around the part that may block deformation of the part during post-printing thermal processing. The support structure includes a skid positioned adjacent to the bottom portion that may support the part, a first plurality of support features disposed along an outer perimeter of the skid, and a second plurality of support features disposed on the top portion of the printed part. The first and second plurality of support features form a lattice around the printed part such that the printed part is nested within the support structure.
    Type: Grant
    Filed: June 8, 2018
    Date of Patent: March 9, 2021
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Ananda Barua, Sathyanarayanan Raghavan, Ken Salas Nobrega, Arunkumar Natarajan, Vadim Bromberg, Raymond Floyd Martell, Meghan J. Borz
  • Publication number: 20210049244
    Abstract: According to some embodiments, system and methods are provided comprising receiving, via a communication interface of a distortion and correction module comprising a processor, a defined geometry for one or more parts, wherein the parts are manufactured with an additive manufacturing machine; discretizing the defined geometry into a mesh including a plurality of nodes; predicting a distortion of a position of each node of the plurality of nodes; determining whether the predicted distortion position exceeds a pre-set tolerance; determining an adjusted pre-distortion position for each node of the plurality of nodes when the predicted distortion position exceeds the pre-set tolerance; predicting a distortion of the adjusted determined pre-distortion position for each node of the plurality of nodes; determining whether the distortion of the determined adjusted pre-distortion position exceeds the pre-set tolerance; and printing the part when one of the predicted distortion position and the predicted adjusted pre-d
    Type: Application
    Filed: August 16, 2019
    Publication date: February 18, 2021
    Inventor: Ananda BARUA
  • Publication number: 20200410060
    Abstract: A method, medium, and system to execute an additive manufacturing (AM) simulation on a model of a part; determine, based on the AM simulation, a prediction of a temperature and displacement distribution in the part at a particular time in the AM process; apply the predicted temperature and displacement distributions in the part as a boundary conditions on a support design space to determine a temperature distribution throughout the support design space; and execute a thermal-structural topology optimization based on the determined temperature and displacement distributions throughout the support design space to determine a distribution of material in the design space for a thermal support structure to interface with the part that optimally reduces a thermal gradient in the part with a minimum of material and results in the generation of an optimized AM support structure.
    Type: Application
    Filed: June 28, 2019
    Publication date: December 31, 2020
    Inventors: Sathyanarayanan RAGHAVAN, Ananda BARUA, Prabhjot SINGH, Arvind RANGARAJAN, Changjie SUN, Dean ROBINSON
  • Publication number: 20200410061
    Abstract: A method, medium, and system to receive a specification defining a model of a part to be produced by an additive manufacturing (AM) process; execute an AM simulation on the model of the part to determine a prediction of thermal distortions to the part; execute a topology optimization (TO) to create TO supports that counteract the predicted thermal distortions; generate at least one rule-based support based on a geometry of the part to interface with the part at one or more regions other than the TO supports; combining the TO supports and the at least one rule-based support to generate a set of hybrid supports; save a record of the set of hybrid supports; and transmit the record of the set of hybrid supports to an AM controller to control an AM system to generate a support structure for an AM production of the part.
    Type: Application
    Filed: June 28, 2019
    Publication date: December 31, 2020
    Inventors: Sathyanarayanan RAGHAVAN, Ananda BARUA, Evan DOZIER, Joseph BLOCK, Brendon LEARY, Prabhjot SINGH, Arvind RANGARAJAN, Changjie SUN, Dean ROBINSON
  • Patent number: 10832753
    Abstract: A unit cell structure is provided. The unit cell structure includes a first section and a second section. The first section defines a first load path and includes a first plurality of first unit cells joined together. The second section defines a second load path separate from the first load path and includes a second plurality of second unit cells joined together, each second unit cell of the second plurality of second unit cells nested within and spaced apart from each first unit cell of the first plurality of first unit cells of the first section.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: November 10, 2020
    Assignee: General Electric Company
    Inventors: Ananda Barua, Arun Karthi Subramaniyan, Changjie Sun, Daniel Jason Erno, Darren Lee Hallman
  • Patent number: 10822972
    Abstract: The present disclosure is directed to a shroud assembly for a gas turbine. The shroud assembly includes a casing and a shroud. The shroud includes a radially outer wall engaged with the casing. A radially inner wall integrally couples to the radially outer wall. The radially inner wall and the radially outer wall collectively define a pair of axially opposed cavities. The radially inner wall moves radially outward toward the casing when one or more gas turbine blades contact the radially inner wall.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: November 3, 2020
    Assignee: General Electric Company
    Inventors: Yu Mukherjee, Ananda Barua, Changjie Sun, Wenfeng Lu
  • Patent number: 10821485
    Abstract: A powder removal system includes a plurality of tubes including upstream and downstream ends, a manifold fluidly coupled to the tubes, and a pressurized air supply fluidly coupled to the manifold supplying pressurized air to the tubes via the manifold. The downstream ends of the tubes are inserted into a plurality of channels partially filled with powder.
    Type: Grant
    Filed: June 8, 2018
    Date of Patent: November 3, 2020
    Assignee: General Electric Company
    Inventors: Ananda Barua, Daniel Jason Erno, Arunkumar Natarajan, Ken Ivcar Salas Nobrega, Uttara Vijay Kumar, John Francis Morrison
  • Patent number: 10781721
    Abstract: Turbine center frames are provided. For example, a turbine center frame comprises an annular outer case and an annular hub. The hub is defined radially inward of the outer case such that the outer case circumferentially surrounds the hub. The turbine center frame further comprises an annular fairing extending between the outer case and the hub, a ligament extending from the fairing to the outer case to connect the fairing to the outer case, a plurality of struts extending from the hub to the outer case, and a boss structure defined on an outer surface of the outer case. The outer case, hub, fairing, ligament, plurality of struts, and boss structure are integrally formed as a single monolithic component. For instance, the turbine center frame is additively manufactured as an integral structure, and methods for manufacturing turbine center frames also are provided.
    Type: Grant
    Filed: February 9, 2018
    Date of Patent: September 22, 2020
    Assignee: General Electric Company
    Inventors: Ananda Barua, Joshua Tyler Mook, Raymond Floyd Martell, Changjie Sun, Gautam Naik, Jordan Paule Tesorero, Aigbedion Akwara
  • Publication number: 20200290120
    Abstract: A method includes assembling a setter assembly onto a binder-jet printed part, wherein the setter assembly includes a base, a top setter, a bottom setter positioned between the base and the top setter, and a support pin extending between the base and the top setter having a terminus that abuts an inward facing surface of the top setter, such that at least portion of the binder-jet printed part is nested between the top setter and the bottom setter. The method includes heating the binder-jet printed part and the setter assembly to debind or sinter the binder-jet printed part, wherein a length of the support pin decreases in response to the heating to move the top setter toward the base.
    Type: Application
    Filed: June 3, 2020
    Publication date: September 17, 2020
    Inventors: Ananda Barua, Sathyanarayanan Raghavan, Ken Salas Nobrega, Vadim Bromberg, Arunkumar Natarajan
  • Patent number: 10688558
    Abstract: A setter assembly for use in additive manufacturing a binder-jet part includes a base, a first setter component having a first setter portion and a second setter portion that may be removably coupled to the first setter portion and a plurality of protrusions disposed on and extending away from a surface of the base. The plurality of protrusions may align the base with the first setter component and enable coupling of the first setter component to the base. The setter assembly also includes a second setter component positioned between the base and the first setter component. The second setter component is disposed on the surface and the first setter component, the second setter component, and the base can be assembled onto a printed part such that at least a portion of the printed part is nested between the first setter component and the second setter component.
    Type: Grant
    Filed: June 6, 2018
    Date of Patent: June 23, 2020
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Ananda Barua, Sathyanarayanan Raghavan, Ken Salas Nobrega, Vadim Bromberg, Arunkumar Natarajan
  • Patent number: 10668710
    Abstract: A component is provided. The component includes a structure including a plurality of unit cells joined together, each unit cell of the plurality of unit cells having a mass density substantially similar to the mass density of every other unit cell of the plurality of unit cells. The plurality of unit cells includes a first portion of unit cells having a characteristic dimension and a first portion average stiffness, the characteristic dimension of the first portion of unit cells having a first value. The plurality of unit cells also includes a second portion of unit cells having the characteristic dimension and a second portion average stiffness, the characteristic dimension of the second portion of unit cells having a second value different from the first value, wherein the second portion average stiffness differs from the first portion average stiffness.
    Type: Grant
    Filed: July 28, 2017
    Date of Patent: June 2, 2020
    Assignee: General Electric Company
    Inventors: Ananda Barua, Arun Karthi Subramaniyan, Daniel Jason Erno
  • Patent number: 10661552
    Abstract: A controller for use in an additive manufacturing system including a consolidation device configured to consolidate material is provided. The controller is configured to receive a build file for a component including a plurality of build layers, wherein each build layer includes a component outer perimeter, at least one build layer generating function, at least one generating function variable, and at least one generating function constant. The controller is configured to generate at least one control signal to control a power output throughout at least one scan path of the consolidation device across the material for each build layer of the plurality of build layers, the at least one scan path generated based at least partially on the component outer perimeter, the at least one generating function, the at least one generating function variable, and the at least one generating function constant for each build layer.
    Type: Grant
    Filed: July 28, 2017
    Date of Patent: May 26, 2020
    Assignee: General Electric Company
    Inventors: Ananda Barua, Arun Karthi Subramaniyan, Daniel Jason Erno, Darren Lee Hallman