Patents by Inventor Xiankai MENG
Xiankai MENG 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: 20240042552Abstract: A stress and texture morphology controlling method for preparing a super-hydrophobic surface of an aluminum alloy by laser etching includes the following steps: pretreating a surface of an aluminum alloy; fixing a pretreated aluminum alloy to an ultrasonic vibration platform, continuously charging flowing liquid nitrogen to a to-be-machined surface of the aluminum alloy, and controlling a flow of the liquid nitrogen to cool the to-be-machined surface of the aluminum alloy and keep the to-be-machined surface of the aluminum alloy at a low temperature; keeping stable flowing of the liquid nitrogen on the to-be-machined surface of the aluminum alloy after the to-be-machined surface of the aluminum alloy is cooled, using the ultrasonic vibration platform to generate a high-frequency ultrasonic vibration field, and etching the to-be-machined surface of the aluminum alloy to form a super-hydrophobic textured micro-nano structure surface; and reducing a surface energy of the super-hydrophobic textured micro-nano strType: ApplicationFiled: April 19, 2022Publication date: February 8, 2024Applicant: JIANGSU UNIVERSITYInventors: Jianzhong ZHOU, Yanqiang GOU, Shu HUANG, Xiankai MENG, Pengfei LI, Yu ZHANG
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Publication number: 20230398633Abstract: A method for preparing a super-hydrophobic aluminum alloy surface through flat-topped laser peening includes the following steps: pretreating an aluminum alloy surface; evenly coating the pretreated aluminum alloy surface with a nanoscale carbon powder layer; performing unconstrained peening treatment on the aluminum alloy surface using a square spot flat-topped nanosecond pulsed laser with the nanoscale carbon powder layer serving as an absorption layer, where beams are kept perpendicular to the aluminum alloy surface all the time; and removing residual carbon nanopowder after the peening, and reducing surface energy of the aluminum alloy material through low-temperature heat treatment, to obtain a super-hydrophobic aluminum alloy surface with micro-nano multiscale structures. According to the present disclosure, the carbon content near the surface layer of the aluminum alloy material is increased, and the hardness and wear resistance of the prepared hydrophobic surface can be effectively improved.Type: ApplicationFiled: July 18, 2022Publication date: December 14, 2023Applicant: JIANGSU UNIVERSITYInventors: Jianzhong ZHOU, Yanqiang GOU, Li LI, Hongxu PU, Songling CHEN, Xiankai MENG, Shu HUANG
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Patent number: 11839934Abstract: A method for preparing a super-hydrophobic aluminum alloy surface through flat-topped laser peening includes the following steps: pretreating an aluminum alloy surface; evenly coating the pretreated aluminum alloy surface with a nanoscale carbon powder layer; performing unconstrained peening treatment on the aluminum alloy surface using a square spot flat-topped nanosecond pulsed laser with the nanoscale carbon powder layer serving as an absorption layer, where beams are kept perpendicular to the aluminum alloy surface all the time; and removing residual carbon nanopowder after the peening, and reducing surface energy of the aluminum alloy material through low-temperature heat treatment, to obtain a super-hydrophobic aluminum alloy surface with micro-nano multiscale structures. According to the present disclosure, the carbon content near the surface layer of the aluminum alloy material is increased, and the hardness and wear resistance of the prepared hydrophobic surface can be effectively improved.Type: GrantFiled: July 18, 2022Date of Patent: December 12, 2023Assignee: JIANGSU UNIVERSITYInventors: Jianzhong Zhou, Yanqiang Gou, Li Li, Hongxu Pu, Songling Chen, Xiankai Meng, Shu Huang
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Patent number: 11806524Abstract: The invention relates to multimodal, e.g., bimodal, hybrid cochlear implants that provide both optical (optogenetic) as well as electrical stimulation to enhance sensitivity.Type: GrantFiled: July 16, 2018Date of Patent: November 7, 2023Assignee: Massachusetts Eye and Ear InfirmaryInventors: Xiankai Meng, Daniel J. Lee, Albert Edge
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Patent number: 11753694Abstract: A pulse current-assisted laser peen forming and hydrophobic surface preparing method for an aluminum alloy includes the following steps: placing a pretreated aluminum alloy onto a shock platform, where electrodes are respectively provided at two ends of the aluminum alloy, and flowing silicone oil covers a surface of the aluminum alloy; determining a laser energy; applying a high-frequency pulse current to the surface of the aluminum alloy through the electrodes, where a shot peening laser generates a laser beam according to the laser energy to shock the surface of the aluminum alloy, and under an action of an electrical pulse and laser shock, the aluminum alloy shows a bent arc-shaped surface, with a shock surface forming a porous micro-nano multi-stage surface; and performing chemical modification on the shock surface of the aluminum alloy to reduce a surface energy of the material, thereby obtaining a super-hydrophobic arc-shaped aluminum alloy surface.Type: GrantFiled: June 6, 2022Date of Patent: September 12, 2023Assignee: JIANGSU UNIVERSITYInventors: Jianzhong Zhou, Yanqiang Gou, Li Li, Yu Zhang, Xiankai Meng, Shu Huang, Gaoqiang Jiang, Pengfei Li, Xv Feng
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Patent number: 11692236Abstract: The present invention provides a device for peening by coupling a laser shock wave and an ultrasonic shock wave in real time. The device includes a synchronization device, a laser device, two ultrasonic shock devices, a working platform and a control system. An upper casing is supported above a base through second hydraulic cylinders. Two supporting beams are provided under the upper casing through the second hydraulic cylinders. Limiting slide rails are provided under the upper casing through first hydraulic cylinders. The two ultrasonic shock devices are connected through the synchronization device, which is configured to synchronize movement and rotation of the two ultrasonic shock devices. The laser device is configured to generate a laser beam to pass through the upper casing and irradiate a surface of a workpiece. The control system controls the laser device to lag behind the two ultrasonic shock devices to perform laser shock.Type: GrantFiled: December 29, 2021Date of Patent: July 4, 2023Assignee: Jiangsu UniversityInventors: Xiankai Meng, Yaomin Zhao, Jinzhong Lu, Jianzhong Zhou, Yanhu Zhang, Shu Huang, Jie Cai, Pengfei Li
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Patent number: 11625514Abstract: The present disclosure provides a numerical simulation method of pulsed laser paint removal and a use thereof. This method establishes a three-dimensional (3D) temperature field model by ANSYS software to perform a numerical simulation of nanosecond pulsed laser paint removal. A high-speed moving pulsed laser is loaded on a surface of the model in a form of heat flux, and a coordinate system is moved to realize loading on different paths. A special surface mesh screening method is used to realize loading on any surface, and it ensures that laser energy distribution on a material surface is in line with reality. In addition, an element birth/death technology is combined to remove an element that exceeds a threshold, so as to intuitively present the surface morphology after laser paint removal. The present disclosure can realize the prediction of the contour of a paint layer ablated by a pulsed laser.Type: GrantFiled: June 18, 2021Date of Patent: April 11, 2023Assignee: Jiangsu UniversityInventors: Jianzhong Zhou, Yanqiang Gou, Jianian Yang, Xiankai Meng, Qi Sun, Shu Huang, Qiang Fu
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Patent number: 11542572Abstract: In a cryogenic workbench, a cryogenic laser peening system and a control method, a tapered surface gap d is adjusted, based on the electromagnetic principle, to control the gasification volume of liquid nitrogen, then the temperatures of the copious cooling workbench and the surface of a sample are precisely controlled by means of the adjustment of the heat absorption amount of liquid nitrogen gasification, the temperature adjustment range and the temperature rising/lowering rate of the cryogenic laser peening system are effectively extended, and the precision of the control of the surface temperature of the sample is increased in combination with a closed-loop control. Additionally, an intelligent control of a cryogenic laser peening process is realized by means of a computer and a PLC control unit, whereby the usage amount of liquid nitrogen in the experiment process is reduced and the processing efficiency is improved.Type: GrantFiled: September 21, 2016Date of Patent: January 3, 2023Assignee: JIANGSU UNIVERSITYInventors: Xiankai Meng, Jianzhong Zhou, Chun Su, Jie Sheng, Jiale Xu, Jing Li, Shu Huang
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Publication number: 20220318452Abstract: The present disclosure provides a numerical simulation method of pulsed laser paint removal and a use thereof. This method establishes a three-dimensional (3D) temperature field model by ANSYS software to perform a numerical simulation of nanosecond pulsed laser paint removal. A high-speed moving pulsed laser is loaded on a surface of the model in a form of heat flux, and a coordinate system is moved to realize loading on different paths. A special surface mesh screening method is used to realize loading on any surface, and it ensures that laser energy distribution on a material surface is in line with reality. In addition, an element birth/death technology is combined to remove an element that exceeds a threshold, so as to intuitively present the surface morphology after laser paint removal. The present disclosure can realize the prediction of the contour of a paint layer ablated by a pulsed laser.Type: ApplicationFiled: June 18, 2021Publication date: October 6, 2022Applicant: Jiangsu UniversityInventors: Jianzhong ZHOU, Yanqiang GOU, Jianian YANG, Xiankai MENG, Qi SUN, Shu HUANG, Qiang FU
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Publication number: 20220243299Abstract: The present invention provides a device for peening by coupling a laser shock wave and an ultrasonic shock wave in real time. The device includes a synchronization device, a laser device, two ultrasonic shock devices, a working platform and a control system. An upper casing is supported above a base through second hydraulic cylinders. Two supporting beams are provided under the upper casing through the second hydraulic cylinders. Limiting slide rails are provided under the upper casing through first hydraulic cylinders. The two ultrasonic shock devices are connected through the synchronization device, which is configured to synchronize movement and rotation of the two ultrasonic shock devices. The laser device is configured to generate a laser beam to pass through the upper casing and irradiate a surface of a workpiece. The control system controls the laser device to lag behind the two ultrasonic shock devices to perform laser shock.Type: ApplicationFiled: December 29, 2021Publication date: August 4, 2022Applicant: Jiangsu UniversityInventors: Xiankai MENG, Yaomin ZHAO, Jinzhong LU, Jianzhong ZHOU, Yanhu ZHANG, Shu HUANG, Jie CAI, Pengfei LI
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Patent number: 11123826Abstract: An electromagnetic apparatus for active intervention to a shape of a molten pool is provided. In the present invention, a workpiece is placed on stepped surfaces of a test bench. Upon power on, a metal rod rotates to generate a toroidal magnetic field centered on the metal rod, and the toroidal magnetic field acts on the molten pool to generate an induced current. The induced current generates Lorentz force under the action of the magnetic field, which acts perpendicularly on an outer surface of the molten pool, thereby changing the height, depth and width of the molten pool, and finally realizing the active intervention to the molten pool shape.Type: GrantFiled: April 28, 2020Date of Patent: September 21, 2021Assignee: JIANGSU UNIVERSITYInventors: Jianzhong Zhou, Kun Huo, Fengze Dai, Xiankai Meng, Pengfei Li, Shu Huang, Jinzhong Lu
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Publication number: 20210283730Abstract: An electromagnetic apparatus for active intervention to a shape of a molten pool is provided. In the present invention, a workpiece is placed on stepped surfaces of a test bench. Upon power on, a metal rod rotates to generate a toroidal magnetic field centered on the metal rod, and the toroidal magnetic field acts on the molten pool to generate an induced current. The induced current generates Lorentz force under the action of the magnetic field, which acts perpendicularly on an outer surface of the molten pool, thereby changing the height, depth and width of the molten pool, and finally realizing the active intervention to the molten pool shape.Type: ApplicationFiled: April 28, 2020Publication date: September 16, 2021Applicant: JIANGSU UNIVERSITYInventors: Jianzhong ZHOU, Kun HUO, Fengze DAI, Xiankai MENG, Pengfei LI, Shu HUANG, Jinzhong LU
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Publication number: 20210277491Abstract: A cryogenic laser shock strengthening method and apparatus based on a laser-induced high temperature plasma technology includes: liquid nitrogen doped with absorber powder is irradiated using high power laser beams, to generate partial high temperature plasma, the liquid nitrogen quickly vaporizes and expands under the action of the high temperature plasma to form high-speed high-pressure air streams, and the high-speed high-pressure air streams shock a metal surface in a low temperature environment to implement the strengthening of the surface. In addition, continuous pressure accumulation of a vaporization cavity can be implemented by means of multiple laser pulses to further increase the shock wave pressure of a metal surface, thereby improving the surface strengthening effect of the metal surface.Type: ApplicationFiled: September 21, 2016Publication date: September 9, 2021Inventors: Jianzhong ZHOU, Xiankai MENG, Chun SU, Jie SHENG, Jiale XU, Shu HUANG, Jing LI
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Publication number: 20210277496Abstract: In a cryogenic workbench, a cryogenic laser peening system and a control method. A a tapered surface gap d is adjusted, based on the electromagnetic principle, to control the gasification volume of liquid nitrogen, then the temperatures of the copious cooling workbench and the surface of a sample are precisely controlled by means of the adjustment of the heat absorption amount of liquid nitrogen gasification, the temperature adjustment range and the temperature rising/lowering rate of the cryogenic laser peening system are effectively extended, and the precision of the control of the surface temperature of the sample is increased in combination with a closed-loop control. Additionally, an intelligent control of a cryogenic laser peening process is realized by means of a computer and a PLC control unit, whereby the usage amount of liquid nitrogen in the experiment process is reduced and the processing efficiency is improved.Type: ApplicationFiled: September 21, 2016Publication date: September 9, 2021Inventors: Xiankai MENG, Jianzhong ZHOU, Chun SU, Jie SHENG, Jiale XU, Jing LI, Shu HUANG
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Publication number: 20210085963Abstract: The invention relates to multimodal, e.g., bimodal, hybrid cochlear implants that provide both optical (optogenetic) as well as electrical stimulation to enhance sensitivity.Type: ApplicationFiled: July 16, 2018Publication date: March 25, 2021Inventors: Xiankai Meng, Daniel J. Lee, Albert Edge
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Patent number: 10745776Abstract: A method and a device for increasing a laser induced shock wave pressure. According to the method, plasmas (21) are generated by impinging an aluminium foil (20) using lasers; a high-voltage pulse electrode (22) discharges to the plasmas (21) to induce and form a photoelectric combined energy field and then high-temperature plasmas (21) having the characteristics of an ultra-high density and an ultra-high speed expansion are induced and generated; a surface to be processed is impacted by the high-temperature plasmas (21) in a restrained state; the laser induced shock wave pressure is increased substantially; the surface of a high-strength material is reinforced, and the strength, hardness, abrasion resistance and anti-fatigue performances of the high-strength material are improved. The device comprises a laser, the electrode (22), a high-voltage power supply (4), a discharging medium (12), a moving platform, etc.Type: GrantFiled: September 7, 2015Date of Patent: August 18, 2020Assignee: JIANGSU UNIVERSITYInventors: Jianzhong Zhou, Xiankai Meng, Shu Huang, Jie Sheng, Chun Su, Hongda Zhou, Xiangwei Yang, Hansong Chen
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Publication number: 20190010576Abstract: A method and a device for increasing a laser induced shock wave pressure. According to the method, plasmas (21) are generated by impinging an aluminium foil (20) using lasers; a high-voltage pulse electrode (22) discharges to the plasmas (21) to induce and form a photoelectric combined energy field and then high-temperature plasmas (21) having the characteristics of an ultra-high density and an ultra-high speed expansion are induced and generated; a surface to be processed is impacted by the high-temperature plasmas (21) in a restrained state; the laser induced shock wave pressure is increased substantially; the surface of a high-strength material is reinforced, and the strength, hardness, abrasion resistance and anti-fatigue performances of the high-strength material are improved. The device comprises a laser, the electrode (22), a high-voltage power supply (4), a discharging medium (12), a moving platform, etc.Type: ApplicationFiled: September 7, 2015Publication date: January 10, 2019Applicant: Jiangsu UniversityInventors: Jianzhong ZHOU, Xiankai MENG, Shu HUANG, Jie SHENG, Chun SU, Hongda ZHOU, Xiangwei YANG, Hansong CHEN