Patents by Inventor Yuhu WU
Yuhu WU 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: 11965578Abstract: A design method for an inerter with adaptively adjusted inertia ratio is based on a lead screw-flywheel inerter, which is to change the positions of mass blocks on a flywheel along the radial direction of the flywheel, so as to change of the moment of inertia of the flywheel, and thus to realize adaptive adjustment of the inertia ratio of the inerter. Specifically, the change of angular velocity of the flywheel is caused by the change of an external force load on a lead screw, a centrifugal force on the mass blocks in spring-mass block structures is changed by the angular velocity, and the positions of the mass blocks in the radial direction of the flywheel is determined by the balanced relation of the centrifugal force and a spring restore force, so that the design purpose is achieved.Type: GrantFiled: October 6, 2020Date of Patent: April 23, 2024Assignee: DALIAN UNIVERSITY OF TECHNOLOGYInventors: Ximing Sun, Nan Duan, Yuhu Wu, Chongquan Zhong
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SILICON-BASED ANODE MATERIAL FOR SECONDARY BATTERY AND PREPARATION METHOD THEREOF, SECONDARY BATTERY
Publication number: 20240105924Abstract: A silicon-based anode material for secondary batteries, a preparation method thereof and a secondary battery are provided. The silicon-based anode material includes: an inner core including an Si particle and silicon oxide SiOx1, where 0<x1<2, a first shell layer including a compound of the general formula MySiOz (0<y?4, 0<z?5, and z?x1) and a C particle, wherein the first shell layer covers the inner core, and the contents of M and C in the first shell layer gradually increase from a side thereof close to the inner core to another side thereof far away from the inner core; and a second shell layer including a carbon film layer or a composite film layer formed by a carbon film layer and a conductive additive, the second shell layer covers the first shell layer. The first charge-discharge cycle capability of the silicon-based anode material is improved, and the manufacturing cost is reduced.Type: ApplicationFiled: December 4, 2023Publication date: March 28, 2024Applicant: SHANGHAI SHANSHAN TECH CO., LTD.Inventors: Yuhu Wu, Fei Ma, Dongdong Liu, Liangqin Wei, Zhihong Wu, Xiaoyang Ding, Fengfeng Li -
Silicon-based anode material for secondary battery and preparation method thereof, secondary battery
Patent number: 11876220Abstract: A silicon-based anode material for secondary batteries, a preparation method thereof and a secondary battery are provided. The silicon-based anode material includes: an inner core including an Si particle and silicon oxide SiOx1, where 0<x1<2, a first shell layer including a compound of the general formula MySiOz (0<y?4, 0<z?5, and z?x1) and a C particle, wherein the first shell layer covers the inner core, and the contents of M and C in the first shell layer gradually increase from a side thereof close to the inner core to another side thereof far away from the inner core; and a second shell layer including a carbon film layer or a composite film layer formed by a carbon film layer and a conductive additive, the second shell layer covers the first shell layer. The first charge-discharge cycle capability of the silicon-based anode material is improved, and the manufacturing cost is reduced.Type: GrantFiled: December 30, 2019Date of Patent: January 16, 2024Assignee: SHANGHAI SHANSHAN TECH CO., LTD.Inventors: Yuhu Wu, Fei Ma, Dongdong Liu, Liangqin Wei, Zhihong Wu, Xiaoyang Ding, Fengfeng Li -
Patent number: 11658292Abstract: A silicon-based anode material, a preparation method thereof and a lithium ion battery are provided. The preparation method of the silicon-based anode material includes: passing a silicon substrate material through a vapor deposition gas to coat the surface of the silicon substrate material with a carbon deposition layer, the vapor deposition gas includes a first carbon source gas and a second carbon source gas, the volume percentage of the first carbon source gas and the second carbon source gas in the vapor deposition gas increases or decreases at different reaction stages for forming the carbon deposition layer. The side of the carbon deposited layer close to the silicon base material is more or less dense than the other side of the carbon deposited layer. The coating layer on the surface of the silicon-based anode material has a continuously changing junction, thereby greatly improving the cycling stability of the material.Type: GrantFiled: December 30, 2019Date of Patent: May 23, 2023Assignee: SHANGHAI SHANSHAN TECH CO., LTD.Inventors: Liangqin Wei, Fei Ma, Dongdong Liu, Yuhu Wu, Zhihong Wu, Xiaoyang Ding, Fengfeng Li
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SILICON-BASED ANODE MATERIAL FOR SECONDARY BATTERY AND PREPARATION METHOD THEREOF, SECONDARY BATTERY
Publication number: 20220328813Abstract: A silicon-based anode material for secondary batteries, a preparation method thereof and a secondary battery are provided. The silicon-based anode material includes: an inner core including an Si particle and silicon oxide SiOx1, where 0<x1 <2, a first shell layer including a compound of the general formula MySiOz (0<y?4, 0<z?5, and z?x1) and a C particle, wherein the first shell layer covers the inner core, and the contents of M and C in the first shell layer gradually increase from a side thereof close to the inner core to another side thereof far away from the inner core; and a second shell layer including a carbon film layer or a composite film layer formed by a carbon film layer and a conductive additive, the second shell layer covers the first shell layer. The first charge-discharge cycle capability of the silicon-based anode material is improved, and the manufacturing cost is reduced.Type: ApplicationFiled: December 30, 2019Publication date: October 13, 2022Applicant: SHANGHAI SHANSHAN TECH CO., LTD.Inventors: Yuhu Wu, Fei Ma, Dongdong Liu, Liangqin Wei, Zhihong Wu, Xiaoyang Ding, Fengfeng Li -
Publication number: 20220328806Abstract: A silicon-based anode material, a preparation method thereof and a lithium ion battery are provided. The preparation method of the silicon-based anode material includes: passing a silicon substrate material through a vapor deposition gas to coat the surface of the silicon substrate material with a carbon deposition layer, the vapor deposition gas includes a first carbon source gas and a second carbon source gas, the volume percentage of the first carbon source gas and the second carbon source gas in the vapor deposition gas increases or decreases at different reaction stages for forming the carbon deposition layer. The side of the carbon deposited layer close to the silicon base material is more or less dense than the other side of the carbon deposited layer. The coating layer on the surface of the silicon-based anode material has a continuously changing junction, thereby greatly improving the cycling stability of the material.Type: ApplicationFiled: December 30, 2019Publication date: October 13, 2022Applicant: SHANGHAI SHANSHAN TECH CO., LTD.Inventors: Liangqin Wei, Fei Ma, Dongdong Liu, Yuhu Wu, Zhihong Wu, Xiaoyang Ding, Fengfeng Li
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Publication number: 20220163094Abstract: A design method for an inerter with adaptively adjusted inertia ratio is based on a lead screw-flywheel inerter, which is to change the positions of mass blocks on a flywheel along the radial direction of the flywheel, so as to change of the moment of inertia of the flywheel, and thus to realize adaptive adjustment of the inertia ratio of the inerter. Specifically, the change of angular velocity of the flywheel is caused by the change of an external force load on a lead screw, a centrifugal force on the mass blocks in spring-mass block structures is changed by the angular velocity, and the positions of the mass blocks in the radial direction of the flywheel is determined by the balanced relation of the centrifugal force and a spring restore force, so that the design purpose is achieved.Type: ApplicationFiled: October 6, 2020Publication date: May 26, 2022Inventors: Ximing SUN, Nan DUAN, Yuhu WU, Chongquan ZHONG
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Publication number: 20220126995Abstract: A coaxial tilt-rotor unmanned aerial vehicle (CTRUAV) and a control method thereof. CTRUAV comprises three rotor modules, five rotors with motors respectively and a control system. Three rotor modules are in an inverted triangle layout. The left and right coaxial tiltable rotor modules in the front of the CTRUAV can rotate around the plane of a fuselage. A rear rotor is installed on the rear fixed-axis rotor module. Two pairs of coaxial rotors are respectively installed on the left and right coaxial tiltable rotor modules. Namely, the left and right coaxial tiltable rotor modules consists of an upper rotor and a lower rotor respectively; the upper rotor and the lower rotor have opposite rotation directions and the same rotation speed during the flight. Moreover, in the two pairs of coaxial rotors, the rotors on same layers have opposite rotation directions, and therotors on different layers have the same rotation directions.Type: ApplicationFiled: May 13, 2020Publication date: April 28, 2022Inventors: Yuhu WU, Zongyang LV, Ximing SUN, Xiangyu SHEN, Rui WANG
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Publication number: 20220121797Abstract: The present invention provides a method for analyzing global stability of a conveying fluid pipe-nonlinear energy sink system, and belongs to the technical field of system stability proof and analysis of a control system. The method comprises: establishing a high-order partial differential model of a conveying fluid pipe-nonlinear energy sink system based on a target energy transfer theory, discretizing the model into a second-order nonlinear ordinary differential form by means of the Galerkin approximation method, and further transforming the model into a quadratic model containing gradient information first; then obtaining a global stability judgment condition of the system by means of the energy disturbance technology, and verifying the theoretical results by means of the numerical method finally.Type: ApplicationFiled: July 13, 2020Publication date: April 21, 2022Inventors: Ximing SUN, Nan DUAN, Yuhu WU, Chongquan ZHONG
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Patent number: 11305873Abstract: An air, sea and underwater tilt tri-rotor UAV capable of performing vertical take-off and landing. By the method for controlling a submerged floating device and a tilt tri-rotor device, the UAV is switched among the vertical take-off and landing mode, fixed wing mode, water surface sailing mode and underwater submerging mode.Type: GrantFiled: October 23, 2017Date of Patent: April 19, 2022Assignee: DALIAN UNIVERSITY OF TECHNOLOGYInventors: Shuo Zhang, Zongyang Lv, Tao Sun, Yuhu Wu, Ximing Sun, Zhenyu Wu
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Patent number: 11022524Abstract: A stochastic configuration network based turbofan engine health parameter estimation method is disclosed. The stochastic configuration network based turbofan engine health parameter estimation method designed by the present invention combines the model based Kalman filter algorithm and the data-driven based stochastic configuration network, i.e. using the output of the stochastic configuration network as the compensation of the Kalman filter algorithm, so as to take into account the estimated result of the Kalman filter and the estimated result of the stochastic configuration network and improve the estimation accuracy of the original Kalman filter algorithm when the measurable parameters of the turbofan engine are less than the health parameters to be estimated. In addition, the present invention effectively reduces the accuracy loss caused by the poor structure of the neural network through the stochastic configuration network, and improves the generalization ability of the network.Type: GrantFiled: November 28, 2019Date of Patent: June 1, 2021Assignee: DALIAN UNIVERSITY OF TECHNOLOGYInventors: Yanhua Ma, Xian Du, Ximing Sun, Yuhu Wu, Yanlei Gao
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Publication number: 20210131914Abstract: A stochastic configuration network based turbofan engine health parameter estimation method is disclosed. The stochastic configuration network based turbofan engine health parameter estimation method designed by the present invention combines the model based Kalman filter algorithm and the data-driven based stochastic configuration network, i.e. using the output of the stochastic configuration network as the compensation of the Kalman filter algorithm, so as to take into account the estimated result of the Kalman filter and the estimated result of the stochastic configuration network and improve the estimation accuracy of the original Kalman filter algorithm when the measurable parameters of the turbofan engine are less than the health parameters to be estimated. In addition, the present invention effectively reduces the accuracy loss caused by the poor structure of the neural network through the stochastic configuration network, and improves the generalization ability of the network.Type: ApplicationFiled: November 28, 2019Publication date: May 6, 2021Inventors: Yanhua MA, Xian DU, Ximing SUN, Yuhu WU, Yanlei GAO
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AIR, SEA, LAND AND UNDERWATER TILT TRI-ROTOR UAV CAPABLE OF PERFORMING VERTICAL TAKE-OFF AND LANDING
Publication number: 20200062386Abstract: An air, sea, land and underwater tilt tri-rotor UAV capable of performing vertical take-off and landing. By the method for controlling a submerged floating device and a tilt tri-rotor device, the UAV is switched among the vertical take-off and landing mode, fixed wing mode, water surface sailing mode and underwater submerging mode, thereby making same have the advantages of four kinds of UAVs, and enhancing the applicability, maneuverability and efficiency of UAV. This has high efficiency in power system, has obviously improved endurance time and flight distance as compared with the traditional multi rotor UAV because of having the fixed wing mode, is applicable to more scenarios, and may operate on flat land, mountain land, water surface and underwater, thereby completing designated missions such as aerial, ground, water surface and underwater investigation, survey and concealment.Type: ApplicationFiled: October 23, 2017Publication date: February 27, 2020Inventors: Shuo ZHANG, Zongyang LV, Tao SUN, Yuhu WU, Ximing SUN, Zhenyu WU