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).
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Patent number: 12136964Abstract: 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: GrantFiled: September 26, 2022Date of Patent: November 5, 2024Assignee: The Boeing CompanyInventors: Gary E. Georgeson, Joseph L. Hafenrichter, James J. Troy, Gregory J. Sweers, Jeong-Beom Ihn
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Patent number: 12101041Abstract: 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: GrantFiled: May 31, 2021Date of Patent: September 24, 2024Assignee: The Boeing CompanyInventors: Saman Farhangdoust, Gary E. Georgeson, Jeong-Beom Ihn
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Patent number: 11772339Abstract: 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: GrantFiled: January 20, 2021Date of Patent: October 3, 2023Assignee: The Boeing CompanyInventors: Jeong-Beom Ihn, Sung-Hoon Ahn, Gil-Yong Lee, Hyung-Soo Kim, Min-Soo Kim, Ho-Jin Kim, Soo-Hong Min
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Publication number: 20230292622Abstract: 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: ApplicationFiled: May 16, 2023Publication date: September 14, 2023Applicant: The Boeing CompanyInventors: Saman Farhangdoust, Gary E. Georgeson, Jeong-Beom Ihn
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Patent number: 11738886Abstract: 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: GrantFiled: July 1, 2019Date of Patent: August 29, 2023Assignee: The Boeing CompanyInventors: Gary E. Georgeson, Jeong-Beom Ihn, William T. McDowell
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Patent number: 11700773Abstract: 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: GrantFiled: June 20, 2020Date of Patent: July 11, 2023Assignee: The Boeing CompanyInventors: Saman Farhangdoust, Gary E. Georgeson, Jeong-Beom Ihn
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Patent number: 11644443Abstract: 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: GrantFiled: December 17, 2018Date of Patent: May 9, 2023Assignee: The Boeing CompanyInventors: Gary E. Georgeson, Jeong-Beom Ihn, William P. Motzer, Jill P. Bingham
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Publication number: 20230051276Abstract: 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: ApplicationFiled: September 26, 2022Publication date: February 16, 2023Applicant: The Boeing CompanyInventors: Gary E. Georgeson, Joseph L. Hafenrichter, James J. Troy, Gregory J. Sweers, Jeong-Beom Ihn
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Patent number: 11548161Abstract: 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: GrantFiled: May 14, 2020Date of Patent: January 10, 2023Assignee: The Boeing CompanyInventors: Barry Allen Fetzer, Jeong-Beom Ihn, Gary E. Georgeson, Jill Paisley Bingham
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Patent number: 11519816Abstract: 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: GrantFiled: February 18, 2019Date of Patent: December 6, 2022Assignee: The Boeing CompanyInventors: Jeong-Beom Ihn, Mostafa Rassaian, Kenneth Hunziker
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Patent number: 11502729Abstract: 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: GrantFiled: August 10, 2021Date of Patent: November 15, 2022Assignee: The Boeing CompanyInventors: Gary E. Georgeson, Joseph L. Hafenrichter, James J. Troy, Gregory J. Sweers, Jeong-Beom Ihn
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Patent number: 11262195Abstract: 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: GrantFiled: March 2, 2020Date of Patent: March 1, 2022Assignee: The Boeing CompanyInventors: Shahrooz M. Jahanbin, Jeong-Beom Ihn, Gary E. Georgeson, Nihar Ashokkumar Desai
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Publication number: 20210399203Abstract: 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: ApplicationFiled: June 20, 2020Publication date: December 23, 2021Applicant: The Boeing CompanyInventors: Saman Farhangdoust, Gary E. Georgeson, Jeong-Beom Ihn
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Publication number: 20210399658Abstract: 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: ApplicationFiled: May 31, 2021Publication date: December 23, 2021Applicant: The Boeing CompanyInventors: Saman Farhangdoust, Gary E. Georgeson, Jeong-Beom Ihn
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Publication number: 20210354301Abstract: 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: ApplicationFiled: May 14, 2020Publication date: November 18, 2021Inventors: Barry Allen Fetzer, Jeong-Beom Ihn, Gary E. Georgeson, Jill Paisley Bingham
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Publication number: 20210270604Abstract: 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: ApplicationFiled: March 2, 2020Publication date: September 2, 2021Inventors: Shahrooz M. Jahanbin, Jeong-Beom Ihn, Gary E. Georgeson, Nihar Ashokkumar Desai
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Patent number: 11079357Abstract: 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: GrantFiled: March 26, 2018Date of Patent: August 3, 2021Assignee: The Boeing CompanyInventors: Jeong-Beom Ihn, Jung-Ryul Lee
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Publication number: 20210138747Abstract: 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: ApplicationFiled: January 20, 2021Publication date: May 13, 2021Applicants: The Boeing Company, Seoul National University R&DB FoundationInventors: Jeong-Beom Ihn, Sung-Hoon Ahn, Gil-Yong Lee, Hyung-Soo Kim, Min-Soo Kim, Ho-Jin Kim, Soo-Hong Min
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Patent number: 10953608Abstract: 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: GrantFiled: August 9, 2018Date of Patent: March 23, 2021Assignee: The Boeing CompanyInventors: Shahrooz Mark Jahanbin, Jeong-Beom Ihn
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Patent number: 10933600Abstract: 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: GrantFiled: March 8, 2018Date of Patent: March 2, 2021Assignee: The Boeing CompanyInventors: Jeong-Beom Ihn, Sung-Hoon Ahn, Gil-Yong Lee, Hyung-Soo Kim, Min-Soo Kim, Ho-Jin Kim, Soo-Hong Min