Patents by Inventor Daining Fang
Daining Fang 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: 20230369005Abstract: A rotary-transmission-target microfocus X-ray source and an X-ray generation method based on the rotary-transmission-target microfocus X-ray source are provided. The X-ray source comprises a chamber, and an electron beam system is installed in the chamber. The electron beam system is arranged on a same side as an anode target rotating shaft. A motor in a rotary anode target system drives an anode target to rotate through a bevel gear transmission device. The microstructure of a target is designed. An electron beam emitted by the electron beam system vertically bombards the metal target of the rotating anode target. A cooling system is configured to cool the anode target.Type: ApplicationFiled: May 12, 2023Publication date: November 16, 2023Applicant: Beijing Institute of TechnologyInventors: Li XI, Kaiyuan XUE, Daining FANG
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Patent number: 11817287Abstract: A rotary-transmission-target microfocus X-ray source and an X-ray generation method based on the rotary-transmission-target microfocus X-ray source are provided. The X-ray source comprises a chamber, and an electron beam system is installed in the chamber. The electron beam system is arranged on a same side as an anode target rotating shaft. A motor in a rotary anode target system drives an anode target to rotate through a bevel gear transmission device. The microstructure of a target is designed. An electron beam emitted by the electron beam system vertically bombards the metal target of the rotating anode target. A cooling system is configured to cool the anode target.Type: GrantFiled: May 12, 2023Date of Patent: November 14, 2023Assignee: Beijing Institute of TechnologyInventors: Li Xi, Kaiyuan Xue, Daining Fang
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Patent number: 11794383Abstract: Disclosed is a material with directional thermal conduction and thermal insulation and a preparation method thereof. The method includes: (1) dispersing a viscose-based carbon fiber in water and adding a phenolic resin and polyacrylamide sequentially to obtain a dispersion I; dispersing a high-thermal conduction carbon fiber in water and adding a phenolic resin and polyacrylamide sequentially to obtain a dispersion II; (2) dividing equally the dispersion I and the dispersion II into several parts, respectively, pouring each part of the dispersion I and each part of the dispersion II into a mold alternately until all the dispersion I and the dispersion II are poured, draining after each pouring of a part of the dispersion I or a part of the dispersion II to obtain a porous carbon fiber skeleton, and solidifying the skeleton to obtain a preform; (3) subjecting the preform to a heat treatment to obtain the material.Type: GrantFiled: August 1, 2022Date of Patent: October 24, 2023Assignee: Beijing Institute of TechnologyInventors: Baosheng Xu, Chenqi Wang, Lijie Qu, Yanfei Chen, Daining Fang, Yazheng Yang
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Publication number: 20230249382Abstract: Disclosed is a material with directional thermal conduction and thermal insulation and a preparation method thereof. The method includes: (1) dispersing a viscose-based carbon fiber in water and adding a phenolic resin and polyacrylamide sequentially to obtain a dispersion I; dispersing a high-thermal conduction carbon fiber in water and adding a phenolic resin and polyacrylamide sequentially to obtain a dispersion II; (2) dividing equally the dispersion I and the dispersion II into several parts, respectively, pouring each part of the dispersion I and each part of the dispersion II into a mold alternately until all the dispersion I and the dispersion II are poured, draining after each pouring of a part of the dispersion I or a part of the dispersion II to obtain a porous carbon fiber skeleton, and solidifying the skeleton to obtain a preform; (3) subjecting the preform to a heat treatment to obtain the material.Type: ApplicationFiled: August 1, 2022Publication date: August 10, 2023Inventors: Baosheng XU, Chenqi WANG, Lijie QU, Yanfei CHEN, Daining FANG, Yazheng YANG
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Patent number: 11662282Abstract: A high-temperature in-situ loaded computed tomography (CT) testing system based on a laboratory X-ray source and a method therefor are provided. A dynamic sealing device is adopted. A pull-up pressure rod and a pull-down pressure rod are allowed to rotate circumferentially and move axially. Meanwhile, a high-temperature furnace is fixed without rotating or moving, such that the high-temperature furnace is flat in an imaging direction to shorten an imaging distance and improve imaging quality. An independent tensile testing machine is utilized to achieve high-load loading. The in-situ measurement of internal deformation and damage information of a specimen under tensile or compressive load in a high-temperature environment is implemented. By taking advantage of the miniaturization design of the high-temperature device, the accuracy of the damage test using the laboratory X-ray source is increased.Type: GrantFiled: July 26, 2021Date of Patent: May 30, 2023Assignee: BEIJING INSTITUTE OF TECHNOLOGYInventors: Daining Fang, Zhaoliang Qu, Rongqi Zhu, Shuo Yang
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Publication number: 20220074835Abstract: A high-temperature in-situ loaded computed tomography (CT) testing system based on a laboratory X-ray source and a method therefor are provided. A dynamic sealing device is adopted. A pull-up pressure rod and a pull-down pressure rod are allowed to rotate circumferentially and move axially. Meanwhile, a high-temperature furnace is fixed without rotating or moving, such that the high-temperature furnace is flat in an imaging direction to shorten an imaging distance and improve imaging quality. An independent tensile testing machine is utilized to achieve high-load loading. The in-situ measurement of internal deformation and damage information of a specimen under tensile or compressive load in a high-temperature environment is implemented. By taking advantage of the miniaturization design of the high-temperature device, the accuracy of the damage test using the laboratory X-ray source is increased.Type: ApplicationFiled: July 26, 2021Publication date: March 10, 2022Inventors: Daining Fang, Zhaoliang Qu, Rongqi Zhu, Shuo Yang
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Patent number: 10809169Abstract: A system for in-situ testing of mechanical properties of materials in static and dynamic load spectra, that includes: an Arcan biaxial clamping subsystem, a press-in test subsystem, a biaxial fatigue test subsystem, a biaxial pre-tension loading subsystem, a signal detection subsystem, and a support and adjustment subsystem. A combined guide mechanism in the Arcan biaxial clamping subsystem is rigidly connected to a guide mechanism support block, an x-direction three sensor base and a y-direction force sensor base in the support and adjustment subsystem by threaded connections, respectively. A laser transmitter, a voice coil motor and a laser receiver in the press-in test subsystem are rigidly connected to a two-degree-of-freedom electric moving platform for the laser transmitter, a two-degree-of-freedom electric moving platform for the voice coil motor and a two-degree-of-freedom electric moving platform for the laser receiver in the support and adjustment subsystem by threaded connections, respectively.Type: GrantFiled: October 12, 2016Date of Patent: October 20, 2020Assignee: JILIN UNIVERSITYInventors: Zhichao Ma, Hongwei Zhao, Luquan Ren, Shizhong Zhang, Jingshi Dong, Zunqiang Fan, Daining Fang, Jingchun Ma, Yongmao Pei, Qixun Zhang, Hui Fan, Qingwei Zhuang
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Publication number: 20200124510Abstract: A system for in-situ testing of mechanical properties of materials in static and dynamic load spectra, that includes: an Arcan biaxial clamping subsystem, a press-in test subsystem, a biaxial fatigue test subsystem, a biaxial pre-tension loading subsystem, a signal detection subsystem, and a support and adjustment subsystem. A combined guide mechanism in the Arcan biaxial clamping subsystem is rigidly connected to a guide mechanism support block, an x-direction force sensor base and a y-direction force sensor base in the support and adjustment subsystem by threaded connections, respectively. A laser transmitter, a voice coil motor and a laser receiver in the press-in test subsystem are rigidly connected to a two-degree-of-freedom electric moving platform for the laser transmitter, a two-degree-of-freedom electric moving platform for the voice coil motor and a two-degree-of-freedom electric moving platform for the laser receiver in the support and adjustment subsystem by threaded connections, respectively.Type: ApplicationFiled: October 12, 2016Publication date: April 23, 2020Applicant: JILIN UNIVERSITYInventors: Zhichao Ma, Hongwei Zhao, Luquan Ren, Shizhong Zhang, Jingshi Dong, Zunqiang Fan, Daining Fang, Jingchun Ma, Yongmao Pei, Qixun Zhang, Hui Fan, Qingwei Zhuang
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Patent number: 10444130Abstract: Provided are a material in-situ test device and method under multi-load and multi-physical field coupled service conditions. The device is composed of a precise six-degree-of-freedom composite load applying module, a precise torsion module, a precise indentation module, a clamp module and a control module which work together to complete a composite-load and multi-physical field coupled experiment, and is integrated with a digital speckle strain measurement and infrared thermal imaging module and a microscope observation module, so as to carry out in-situ observation and quantitative characterization on material deformation behaviors and damage mechanism phenomena in a composite-load and multi-physical field loading process. For example, loading methods of “cantilever type pure bending, cantilever type tension/compression-torsion, and cantilever type bending-torsion”, etc. can realize the loading of composite load.Type: GrantFiled: September 24, 2015Date of Patent: October 15, 2019Assignee: JILIN UNIVERSITYInventors: Hongwei Zhao, Shizhong Zhang, Luquan Ren, Ning Li, Xiaohang Dai, Shunbo Wang, Zhanwei Huo, Yang Liu, Daining Fang, Yongmao Pei
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Patent number: 10209322Abstract: A method for testing a local magnetomechanical coupling coefficient of a magnetic material includes defining a square of a local magnetomechanical coupling coefficient kIT as a the ratio of a magnetic energy stored in a magnetic material to an input reversible mechanical work, and characterizing the local magnetomechanical coupling coefficient of the magnetic material by measuring nano-indentation load-depth curves of the magnetic material under both situations of a saturated magnetic field and an unsaturated magnetic field. The method is simple in operation and has the advantages in local performance test of composite materials and other heterogeneous materials and also in small-scale performance test of nano-films.Type: GrantFiled: May 18, 2015Date of Patent: February 19, 2019Assignee: Peking UniversityInventors: Daining Fang, Hao Zhou, Yongmao Pei, Hongwei Zhao
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Patent number: 10084424Abstract: A device and associated method for adjusting electrical impedance based on contact action are disclosed. The device includes a drive unit (1), a contact unit (2), a monitoring unit (3), and a control unit (4). The monitoring unit (3) measures an impedance signal of an electromagnetic functional material (7) in an alternating-current circuit, and transfers the impedance signal to the control unit (4). In response to the impedance signal measured by the monitoring unit (3), the control unit (4) controls the drive unit (1) to apply a mechanical load on the contact unit (2), which causes the contact unit (2) to contact the electromagnetic functional material (7). The value of a contact load is adjusted, so as to adjust the electrical impedance of the electromagnetic functional material (7), thereby achieving the objective of adjusting the impedance matching in the alternating-current circuit in real time.Type: GrantFiled: May 18, 2015Date of Patent: September 25, 2018Assignees: Peking University, Jilin UniversityInventors: Daining Fang, Hao Zhou, Yongmao Pei, Faxin Li, Hongwei Zhao, Ji Fu
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Patent number: 10012576Abstract: An in-situ testing equipment for testing micromechanical properties of a material in a multi-load and multi-physical field coupled condition is disclosed. The equipment comprises a frame supporting module, a tension/compression-low cycle fatigue module, a torsioning module (21), a three-point bending module (6), an impressing module (33), a thermal field and magnetic field application module (34), an in-situ observation module (32) and a clamp body module (22).Type: GrantFiled: March 3, 2014Date of Patent: July 3, 2018Assignee: JILIN UNIVERSITYInventors: Hongwei Zhao, Luquan Ren, Jianping Li, Hu Huang, Panfeng Zhang, Xiaoli Hu, Hongbing Cheng, Daining Fang, Zhichao Ma, Qingwei Zhuang, Jing Gao, Xiaolong Dong, Kehong Tang, Fu Zhang, Qing Zou, Yuxiang Zhu, Jingshi Dong, Zunqiang Fan, Yong Hu, Tao Shang
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Publication number: 20180180521Abstract: Provided are a material in-situ test device and method under multi-load and multi-physical field coupled service conditions. The device is composed of a precise six-degree-of-freedom composite load applying module, a precise torsion module, a precise indentation module, a clamp module and a control module which work together to complete a composite-load and multi-physical field coupled experiment, and is integrated with a digital speckle strain measurement and infrared thermal imaging module and a microscope observation module, so as to carry out in-situ observation and quantitative characterization on material deformation behaviours and damage mechanism phenomena in a composite-load and multi-physical field loading process. For example, loading methods of “cantilever type pure bending, cantilever type tension/compression-torsion, and cantilever type bending-torsion”, etc. can realize the loading of composite load.Type: ApplicationFiled: September 24, 2015Publication date: June 28, 2018Inventors: Hongwei ZHAO, Shizhong ZHANG, Luquan REN, Ning LI, Xiaohang DAI, Shunbo WANG, Zhanwei HUO, Yang LIU, Daining FANG, Yongmao PEI
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Publication number: 20180081002Abstract: A method for testing a local magnetomechanical coupling coefficient of a magnetic material includes defining a square of a local magnetomechanical coupling coefficient kIT as a the ratio of a magnetic energy stored in a magnetic material to an input reversible mechanical work, and characterizing the local magnetomechanical coupling coefficient of the magnetic material by measuring nano-indentation load-depth curves of the magnetic material under both situations of a saturated magnetic field and an unsaturated magnetic field. The method is simple in operation and has the advantages in local performance test of composite materials and other heterogeneous materials and also in small-scale performance test of nano-films.Type: ApplicationFiled: May 18, 2015Publication date: March 22, 2018Inventors: Daining Fang, Hao Zhou, Yongmao Pei, Hongwei Zhao
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Publication number: 20180076787Abstract: A device and associated method for adjusting electrical impedance based on contact action are disclosed. The device includes a drive unit (1), a contact unit (2), a monitoring unit (3), and a control unit (4). The monitoring unit (3) measures an impedance signal of an electromagnetic functional material (7) in an alternating-current circuit, and transfers the impedance signal to the control unit (4). In response to the impedance signal measured by the monitoring unit (3), the control unit (4) controls the drive unit (1) to apply a mechanical load on the contact unit (2), which causes the contact unit (2) to contact the electromagnetic functional material (7). The value of a contact load is adjusted, so as to adjust the electrical impedance of the electromagnetic functional material (7), thereby achieving the objective of adjusting the impedance matching in the alternating-current circuit in real time.Type: ApplicationFiled: May 18, 2015Publication date: March 15, 2018Inventors: Daining Fang, Hao Zhou, Yongmao Pei, Faxin Li, Hongwei Zhao, Ji Fu
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Publication number: 20160216182Abstract: An in-situ testing equipment for testing micromechanical properties of a material in a multi-load and multi-physical field coupled condition is disclosed. The equipment comprises a frame supporting module, a tension/compression-low cycle fatigue module, a torsioning module (21), a three-point bending module (6), an impressing module (33), a thermal field and magnetic field application module (34), an in-situ observation module (32) and a clamp body module (22).Type: ApplicationFiled: March 3, 2014Publication date: July 28, 2016Inventors: Hongwei Zhao, Luquan Ren, Jianping Li, Hu Huang, Panfeng Zhang, Xiaoli Hu, Hongbing Cheng, Daining Fang, Zhichao Ma, Qingwei Zhuang, Jing Gao, Xiaolong Dong, Kehong Tang, Fu Zhang, Qing Zou, Yuxiang Zhu, Jingshi Dong, Zunqiang Fan, Yong Hu, Tao Shang