Patents by Inventor Jeong-Beom Ihn

Jeong-Beom Ihn 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).

  • Patent number: 11548161
    Abstract: Methods of performing a plurality of operations within a region of a part utilizing an end effector of a robot and robots that perform the methods are disclosed herein. The methods include collecting a spatial representation of the part and aligning a predetermined raster scan pattern for movement of the end effector relative to the part with the spatial representation of the part. The methods also include defining a plurality of normality vectors for the part at a plurality of predetermined operation locations for operation of the end effector. The methods further include moving the end effector relative to the part and along the predetermined raster scan pattern. The methods also include orienting the end effector such that an operation device of the end effector faces toward each operation location along a corresponding normality vector and executing a corresponding operation of the plurality of operations with the operation device.
    Type: Grant
    Filed: May 14, 2020
    Date of Patent: January 10, 2023
    Assignee: The Boeing Company
    Inventors: Barry Allen Fetzer, Jeong-Beom Ihn, Gary E. Georgeson, Jill Paisley Bingham
  • Patent number: 11519816
    Abstract: A computer is configured to enable a rapid, consistent, ply-by-ply, quantitative analytical assessment of various Finite Element Method (FEM) material models based on metrics defined for impact damage. Additionally, the computer is configured to provide a method for determining the accuracy of such FEM material model(s) by comparing the output of those models to non-destructive evaluation (NDE) test data.
    Type: Grant
    Filed: February 18, 2019
    Date of Patent: December 6, 2022
    Assignee: The Boeing Company
    Inventors: Jeong-Beom Ihn, Mostafa Rassaian, Kenneth Hunziker
  • Patent number: 11502729
    Abstract: A method for wirelessly coupling respective transducers of an automated motion platform and a sub-surface sensor node through a skin of a limited-access structure for the purpose of wireless power and data transfer. Coordinates of an as-designed position of the transducer of the sensor node in a local coordinate system of the limited-access structure are retrieved from a non-transitory tangible computer-readable storage medium. Then coordinates of a target position on an external surface of the skin of the limited-access structure are estimated. The target position is calculated to be aligned with the as-designed position of the transducer of the sensor node. The motion platform is moved under computer control so that the transducer onboard the motion platform moves toward the target position. Movement ceases when the transducer onboard the motion platform is at the target position. Then wave energy is transferred between the aligned transducers.
    Type: Grant
    Filed: August 10, 2021
    Date of Patent: November 15, 2022
    Assignee: The Boeing Company
    Inventors: Gary E. Georgeson, Joseph L. Hafenrichter, James J. Troy, Gregory J. Sweers, Jeong-Beom Ihn
  • Patent number: 11262195
    Abstract: A surface roughness analysis system and methods of analyzing surface roughness of a workpiece are presented. The surface roughness analysis system comprises a number of wave generators; a number of wave sensors; and an ultrasonic analysis system configured to receive material mechanical parameters for a workpiece, determine incident surface wave signal parameters for a source signal to be sent by the number of wave generators, and determine a cut-off wavelength using the material mechanical parameters, wherein the cut-off wavelength is a ratio of surface wavelength over incident wavelength.
    Type: Grant
    Filed: March 2, 2020
    Date of Patent: March 1, 2022
    Assignee: The Boeing Company
    Inventors: Shahrooz M. Jahanbin, Jeong-Beom Ihn, Gary E. Georgeson, Nihar Ashokkumar Desai
  • Publication number: 20210399658
    Abstract: A self-powered sensor node includes a printed wiring board connected to a patch. The printed wiring board includes a microcontroller, a transceiver, an antenna, and a power management module connected to supply electric power to the microcontroller. The patch comprises a metamaterial substrate and a piezoelectric element adhered to the metamaterial substrate. The piezoelectric element is connected to the power management module and to the microcontroller. The power management module is configured to store electric power received from the piezoelectric element. The microcontroller is configured to selectively convert electrical signals received from the piezoelectric element into sensor data and then command the transceiver to transmit the sensor data via the antenna. The metamaterial substrate has an auxetic kirigami honeycomb structure.
    Type: Application
    Filed: May 31, 2021
    Publication date: December 23, 2021
    Applicant: The Boeing Company
    Inventors: Saman Farhangdoust, Gary E. Georgeson, Jeong-Beom Ihn
  • Publication number: 20210399203
    Abstract: A metamaterial-based substrate (meta-substrate) for piezoelectric energy harvesters. The design of the meta-substrate combines kirigami and auxetic topologies to create a high-performance platform including preferable mechanical properties of both metamaterial morphable structures. The creative design of the meta-substrate can improve strain-induced vibration applications in structural health monitoring, internet-of-things systems, micro-electromechanical systems, wireless sensor networks, vibration energy harvesters, and other applications whose efficiency is dependent on their deformation performance. The meta-substrate energy harvesting device includes a meta-material substrate comprising an auxetic frame having two kirigami cuts and a piezoelectric element adhered to the auxetic frame by means of a thin layer of elastic glue.
    Type: Application
    Filed: June 20, 2020
    Publication date: December 23, 2021
    Applicant: The Boeing Company
    Inventors: Saman Farhangdoust, Gary E. Georgeson, Jeong-Beom Ihn
  • Publication number: 20210354301
    Abstract: Methods of performing a plurality of operations within a region of a part utilizing an end effector of a robot and robots that perform the methods are disclosed herein. The methods include collecting a spatial representation of the part and aligning a predetermined raster scan pattern for movement of the end effector relative to the part with the spatial representation of the part. The methods also include defining a plurality of normality vectors for the part at a plurality of predetermined operation locations for operation of the end effector. The methods further include moving the end effector relative to the part and along the predetermined raster scan pattern. The methods also include orienting the end effector such that an operation device of the end effector faces toward each operation location along a corresponding normality vector and executing a corresponding operation of the plurality of operations with the operation device.
    Type: Application
    Filed: May 14, 2020
    Publication date: November 18, 2021
    Inventors: Barry Allen Fetzer, Jeong-Beom Ihn, Gary E. Georgeson, Jill Paisley Bingham
  • Publication number: 20210270604
    Abstract: A surface roughness analysis system and methods of analyzing surface roughness of a workpiece are presented. The surface roughness analysis system comprises a number of wave generators; a number of wave sensors; and an ultrasonic analysis system configured to receive material mechanical parameters for a workpiece, determine incident surface wave signal parameters for a source signal to be sent by the number of wave generators, and determine a cut-off wavelength using the material mechanical parameters, wherein the cut-off wavelength is a ratio of surface wavelength over incident wavelength.
    Type: Application
    Filed: March 2, 2020
    Publication date: September 2, 2021
    Inventors: Shahrooz M. Jahanbin, Jeong-Beom Ihn, Gary E. Georgeson, Nihar Ashokkumar Desai
  • Patent number: 11079357
    Abstract: Methods and apparatus for enhanced visualization of anomalies in a structure. The method comprises: acquiring pulse-echo laser ultrasonic wave propagation imaging video data at a multiplicity of points in a scan area on a surface of a structure; post-processing the pulse-echo laser ultrasonic wave propagation imaging video data using multiple-time window amplitude mapping to create a multiple-time window amplitude map; and displaying the multiple-time window amplitude map on a graphical user interface.
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: August 3, 2021
    Assignee: The Boeing Company
    Inventors: Jeong-Beom Ihn, Jung-Ryul Lee
  • Publication number: 20210138747
    Abstract: Methods and apparatus for automating the fiber laying process during the repair of composite structures made of fiber-reinforced plastic material based on the three-dimensional printing technique. Continuous fiber rovings (e.g., carbon fibers) impregnated with liquid epoxy can be directly printed onto the damaged surface of the composite structure (e.g., an aircraft component made of carbon fiber-reinforced plastic) without human manipulation in an autonomous manner.
    Type: Application
    Filed: January 20, 2021
    Publication date: May 13, 2021
    Applicants: The Boeing Company, Seoul National University R&DB Foundation
    Inventors: Jeong-Beom Ihn, Sung-Hoon Ahn, Gil-Yong Lee, Hyung-Soo Kim, Min-Soo Kim, Ho-Jin Kim, Soo-Hong Min
  • Patent number: 10953608
    Abstract: Systems and methods for non-destructive inspection of curved composite laminate structures using interface guided waves. In particular, if the curved composite laminate structure has a noodle, then the noodle area may be inspected using interface guided waves. The systems and methods provide a repeatable and reliable nondestructive technique for monitoring the structural health of the noodle area of an adhesively bonded curved composite laminate structure by comparing detection data acquired from an inspected curved composite laminate structure with prediction data derived using a simulated curved composite laminate structure.
    Type: Grant
    Filed: August 9, 2018
    Date of Patent: March 23, 2021
    Assignee: The Boeing Company
    Inventors: Shahrooz Mark Jahanbin, Jeong-Beom Ihn
  • Patent number: 10933600
    Abstract: Methods and apparatus for automating the fiber laying process during the repair of composite structures made of fiber-reinforced plastic material based on the three-dimensional printing technique. Continuous fiber rovings (e.g., carbon fibers) impregnated with liquid epoxy can be directly printed onto the damaged surface of the composite structure (e.g., an aircraft component made of carbon fiber-reinforced plastic) without human manipulation in an autonomous manner.
    Type: Grant
    Filed: March 8, 2018
    Date of Patent: March 2, 2021
    Assignee: The Boeing Company
    Inventors: Jeong-Beom Ihn, Sung-Hoon Ahn, Gil-Yong Lee, Hyung-Soo Kim, Min-Soo Kim, Ho-Jin Kim, Soo-Hong Min
  • Patent number: 10909280
    Abstract: Methods and apparatus for structural health monitoring are described. In one example, a method for use in designing a structural health monitoring (SHM) system for use in monitoring a host structure is described. The method includes one or more of a process for designing SHM systems for any given piece of structural hardware, a process for evaluating a given SHM system, a method to quantify the performance of a given SHM system in comparison to current inspection processes, a finite element modeling approach to determining excitation frequencies to detect damage and for selecting the best time window to use for sensed excitation signals, a Bayesian Network based data fusion technique that fuses in environmental information (load cycles induced on the structure) with a damage index (DI) to produce crack detection and estimation of crack length, and a damage location and sensor selection technique.
    Type: Grant
    Filed: October 26, 2016
    Date of Patent: February 2, 2021
    Assignee: The Boeing Company
    Inventors: Lawrence Eric Pado, Jeong-Beom Ihn
  • Publication number: 20210002004
    Abstract: An aircraft lifecycle in which digital data for an aircraft part is automatically collected, retained, and utilized to individualize aircraft inspection and maintenance is described. Several types of data, including non-destructive evaluation and measurement data and structural health monitoring data, are used in a feedback loop having various phases which may automatically receive data in digital format from other phases. In this manner the part being designed, fabricated, tested, and maintained for the aircraft is optimized and processes involved in the lifecycle of the part is made more efficient.
    Type: Application
    Filed: July 1, 2019
    Publication date: January 7, 2021
    Applicant: The Boeing Company
    Inventors: Gary E. Georgeson, Jeong-Beom Ihn, William T. McDowell
  • Patent number: 10775330
    Abstract: A system includes a structure and a material applied to a portion of the structure. The material may be adapted to change color locally in response to localized heating of the portion of the structure to a first threshold temperature due to an electrical current within the structure. The system may further include a detector configured to receive light from the structure to enable detection of a pathway of the electrical current through the structure based on a position of the color.
    Type: Grant
    Filed: September 16, 2019
    Date of Patent: September 15, 2020
    Assignee: THE BOEING COMPANY
    Inventors: Gary Georgeson, Jeong-Beom Ihn
  • Publication number: 20200264071
    Abstract: A computer is configured to enable a rapid, consistent, ply-by-ply, quantitative analytical assessment of various Finite Element Method (FEM) material models based on metrics defined for impact damage. Additionally, the computer is configured to provide a method for determining the accuracy of such FEM material model(s) by comparing the output of those models to non-destructive evaluation (NDE) test data.
    Type: Application
    Filed: February 18, 2019
    Publication date: August 20, 2020
    Inventors: Jeong-Beom Ihn, Mostafa Rassaian, Kenneth Hunziker
  • Patent number: 10732149
    Abstract: Methods and systems may be configured to integrate data from fixed nondestructive inspection sensors positioned on a test specimen and data from laser ultrasound scans of the test specimen, in order to monitor and track damage and stress indications in the test specimen in real-time during mechanical stress testing of the test specimen. Data from the laser ultrasound scans may identify emergent areas of interest within the test specimen that were not predicted by stress analysis, and further allow for reconfiguration of the test plan in view of the emergent areas of interest, without having the stop the test. Laser ultrasound scans may be performed on the entire test specimen, with high-resolution scans being performed on emergent areas of interest. Thus, stress indications, or stress effects, in the test specimen may be measured, identified, and tracked in real-time (e.g., as growth is propagating) in a test specimen undergoing structural tests.
    Type: Grant
    Filed: November 20, 2019
    Date of Patent: August 4, 2020
    Assignee: The Boeing Company
    Inventors: Jeong-Beom Ihn, Gary E. Georgeson, William Paul Motzer
  • Publication number: 20200191749
    Abstract: Described herein is a system for determining structural characteristics of an object, the system including a first laser, a second laser, one or more processors, and a computer readable medium storing instructions that, when executed by the one or more processors, cause the system to perform functions. The functions include illuminating, by the first laser, a surface region of an object with an incident light pulse, thereby causing the object to exhibit vibrations; illuminating, by the second laser, the surface region with an incident light beam, thereby generating responsive light that is indicative of the vibrations; detecting the responsive light and determining a difference between a characteristic of the responsive light and a reference characteristic that corresponds to the surface region; determining a position of the surface region within a three-dimensional space; and displaying the surface region such that the difference is indicated at the position of the surface region.
    Type: Application
    Filed: December 17, 2018
    Publication date: June 18, 2020
    Inventors: Gary E. Georgeson, Jeong-Beom Ihn, William P. Motzer, Jill P. Bingham
  • Publication number: 20200103375
    Abstract: Methods and systems may be configured to integrate data from fixed nondestructive inspection sensors positioned on a test specimen and data from laser ultrasound scans of the test specimen, in order to monitor and track damage and stress indications in the test specimen in real-time during mechanical stress testing of the test specimen. Data from the laser ultrasound scans may identify emergent areas of interest within the test specimen that were not predicted by stress analysis, and further allow for reconfiguration of the test plan in view of the emergent areas of interest, without having the stop the test. Laser ultrasound scans may be performed on the entire test specimen, with high-resolution scans being performed on emergent areas of interest. Thus, stress indications, or stress effects, in the test specimen may be measured, identified, and tracked in real-time (e.g., as growth is propagating) in a test specimen undergoing structural tests.
    Type: Application
    Filed: November 20, 2019
    Publication date: April 2, 2020
    Inventors: Jeong-Beom Ihn, Gary E. Georgeson, William Paul Motzer
  • Publication number: 20200047425
    Abstract: Systems and methods for non-destructive inspection of curved composite laminate structures using interface guided waves. In particular, if the curved composite laminate structure has a noodle, then the noodle area may be inspected using interface guided waves. The systems and methods provide a repeatable and reliable nondestructive technique for monitoring the structural health of the noodle area of an adhesively bonded curved composite laminate structure by comparing detection data acquired from an inspected curved composite laminate structure with prediction data derived using a simulated curved composite laminate structure.
    Type: Application
    Filed: August 9, 2018
    Publication date: February 13, 2020
    Applicant: The Boeing Company
    Inventors: Shahrooz Mark Jahanbin, Jeong-Beom Ihn