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公开(公告)号：US11658523B2
公开(公告)日：2023-05-23
申请号：US17281490
申请日：2019-11-06
申请人： NANJING UNIVERSITY OF AERONAUTICS AND ASTRONAUTICS , QINHUAI INNOVATION INSTITUTE OF NANJING UNIVERSITY OF AERONAUTICS AND ASTRONAUTICS
发明人： Li Yu , Zhuoran Zhang , Yuke Shi , Linnan Sun , Xu Chen
摘要： A consequent-pole permanent magnet biased bearingless doubly-salient motor includes: a core of a stator/rotor, a middle part of a surface, facing an air gap (11), of each stator pole 1-1 is grooved toward an edge part of the stator pole 1-1 in an anti-clockwise direction, one permanent magnet is attached in each groove, and a surface, facing the air gap (11), of each permanent magnet (3) is the same in polarity; each stator pole 1-1 is wounded with an armature coil, the armature coils are serially connected in sequence to form an armature winding, and the armature winding is respectively connected to an external main circuit; and every three stator poles 1-1 are wound with a suspension coil, and the suspension coils opposite spatially and radially are serially connected to form a suspension winding connected to an external suspension control circuit.
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公开(公告)号：US12128474B2
公开(公告)日：2024-10-29
申请号：US18037783
申请日：2022-09-05
发明人： Haoqin Yang , Zhongde Shan , Qinjiang Liu , Jianpei Shi , Dandan Yan , Shijie Dong
摘要： A method for preparing a negative pressure film-covering frozen sand mold includes: directly obtaining a mold cavity of a sand mold through numerically controlled machining of a frozen sand blank; covering a surface, brushed with a thermal insulation coating, of the mold cavity of the sand mold with a softened thin film, and covering an outer surface of the sand mold with a back film to seal a sand box; fixing the frozen sand mold in an air extraction sand box with a vacuum chamber, and extracting air through a vacuum pump, so that the thin film tightly adheres to the sand mold through vacuum suction force; and closing the box to obtain an integral sand mold, and pouring a casting at room temperature or low temperature under negative pressure. The method is environment-friendly, and the prepared frozen sand mold has high strength and is convenient for sand cleaning.
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公开(公告)号：US12123349B2
公开(公告)日：2024-10-22
申请号：US17784671
申请日：2020-08-26
发明人： Yue Zhang , Huijun Tan , Chao Wang , Chao Li , Liang Chen
CPC分类号： F02C7/042 , B64D33/02 , F02C7/057 , B64D2033/026 , Y10T137/0536
摘要： The present invention discloses an internal-parallel inlet with mode conversion combined with variable geometry adjustment, which comprises a high-speed channel, a low-speed channel, a mode conversion component, a variable geometry component and a motor actuating component. When the inlet is in a low-speed mode, the variable geometry component adjusts the throat area and the internal contraction ratio of the inlet. When the flight Mach number is in a range of the mode conversion Mach number, the mode conversion component and the variable geometry component work simultaneously. When the inlet is in a high-speed mode, the mode conversion component is combined with the variable geometry component to adjust the throat area and the internal contraction ratio of the inlet. The present invention also provides a method for controlling the inlet.
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4.发明授权公开(公告)号：US12122538B2
公开(公告)日：2024-10-22
申请号：US17632575
申请日：2021-03-10
发明人： Shan Jia , Jianhua Zhao , Jinbao Chen , Xianghua Zhou , Sheng Zhang
IPC分类号： B64G1/24 , B01D21/28 , B64G1/10 , B64G1/36 , B64G1/64 , G01H3/00 , G01M1/22 , G01M3/24 , G01V1/00
CPC分类号： B64G1/244 , B01D21/283 , B64G1/105 , B64G1/36 , B64G1/64 , G01H3/00 , G01M1/22 , G01M3/243 , G01V1/001 , B64G1/1071
摘要： A suspending release device for observing a drop vibration attitude change of a lander and a test method are provided. The device includes a bench system, a lifting system fixed to the bench system, a horizontal frame system, an attitude control system, and a suspending release system hinged to the attitude control system. The horizontal frame system may slide vertically on the bench system and may drive the attitude control system to slide horizontally. A test lander is fixed to a release sliding block. The release sliding block is locked with a main load bearing block. An attitude of the test lander when releasing is adjusted. The horizontal frame system is lifted to a predetermined height. Guide rods are indirectly driven to release the sliding block by a motor. The whole lander falls freely and touches the ground to collide, and the process is recorded by a high-speed camera.
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公开(公告)号：US20240270379A1
公开(公告)日：2024-08-15
申请号：US18430816
申请日：2024-02-02
发明人： Zhe Chen , Xu Zhou , Qijun Zhao , Zhuangzhuang Cui , Binwu Ren , Muyang Lin
IPC分类号： B64C27/473
CPC分类号： B64C27/473 , B64C2027/4736
摘要： The present disclosure provides a negative torsion variable paddle and a control assembly thereof. The paddle includes rigid first paddles and rigid second paddles. When a driver pushes a root railing edge, the first paddle is not flexibly deformed, and the second paddle is torsionally deformed with a laminated elastomer structure between cascades to realize relative rotation at both ends of the second paddle, so that a flexible skin maintains airfoil contours, and the whole torsional degree of the paddle is changed. The present disclosure also provides a rotor craft including the negative torsion variable paddle.
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公开(公告)号：US20240191339A1
公开(公告)日：2024-06-13
申请号：US18520764
申请日：2023-11-28
发明人： Weiwei Li , Yajing Liu
CPC分类号： C23C14/088 , C23C14/28 , C23C14/5806
摘要： Provided are a nanocomposite dielectric film material for energy storage prepared by vertical self-assembly of lead zirconate titanate (PZT) and magnesium oxide (MgO), and a preparation method thereof. The method includes: 1, preparing a PZT powder; 2, mixing the PZT powder with an MgO powder to obtain a uniformly mixed PM composite powder; and mixing the PM composite powder with a binder, and subjecting a resulting mixture to tableting and cold isostatic pressing to obtain a PM composite target blank; 3, sintering the PM composite target blank at a temperature of not higher than 900° C. to obtain a PM composite target; and 4, subjecting the PM composite target to pulsed laser deposition to form an epitaxial vertical self-assembly composite dielectric film; and subjecting the epitaxial vertical self-assembly composite dielectric film to annealing to obtain the film material.
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公开(公告)号：US12003528B1
公开(公告)日：2024-06-04
申请号：US18581424
申请日：2024-02-20
IPC分类号： H04L9/40
CPC分类号： H04L63/1433 , H04L63/1441
摘要： An endogenous dynamic defense architecture-based multi-objective service function chain deployment method solves a problem of multi-objective deployment by constructing an endogenous dynamic defense architecture, in which a basic mode includes using moving target defense to ensure the security of VNFs, and an enhanced mode includes using mimic defense to perform security protection on the VNFs; in a construction module, a sub-pool division algorithm is proposed to divide a heterogeneous replica pool into a plurality of sub-pools, and VNFs are selected from the sub-pools so as to constitute a heterogeneous replica set; in a scheduling module, a replica VNF dynamic scheduling deployment algorithm is proposed, a deployment set is selected from the heterogeneous replica set for deployment, and is sent to a processing module; the input module replicas an input and distributes same to the processing module.
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8.发明公开公开(公告)号：US20240174371A1
公开(公告)日：2024-05-30
申请号：US18556356
申请日：2022-03-21
发明人： Hexia HUANG , Zhengkang LIN , Xuebin TANG , Yuan QIN , Huijun TAN , Hang ZHANG , Ziren WANG , Chao LI , Xiru XU
IPC分类号： B64D33/02
CPC分类号： B64D33/02 , B64D2033/026
摘要： The present invention provides a hypersonic large internal contraction ratio air inlet channel having stepless adjustable air release valve, including an air inlet channel front body, an air-discharging slit cover plate, sidewalls, a lip cover, air-discharging cavities, valve plates, partition plates, a rotatable shaft, an expansion section and a driver. The valve plates are rotated through the driver according to the actual working conditions of air inlet channel, the minimum cross-section of the air discharging flow path is thus changed, and a stepless dynamic adjustment of the air discharging flow of the air inlet channel can be realized, so that the aerodynamic performance of the air inlet channel is improved, and the air discharging resistance of the air vehicle is reduced.
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公开(公告)号：US11990951B2
公开(公告)日：2024-05-21
申请号：US18005974
申请日：2021-10-19
发明人： Li Wang , Weijia Chen
IPC分类号： H04B3/46 , H04B1/7087 , H04B3/54
CPC分类号： H04B3/46 , H04B1/7087 , H04B3/54
摘要： A method for implementing fault diagnosis by means of a spread spectrum carrier includes the following steps: designing incident signal parameters, selecting a spread spectrum sequence for fault detection, determining a center frequency and a sequence length of a spread spectrum code, and segmenting and transforming a power carrier source signal; using the fault detection spread spectrum sequence as a carrier spread spectrum code, and performing spread spectrum modulation on the transformed power carrier source signal to generate an SSPLCR sequence; coupling the SSPLCR sequence to a cable to be tested, and when the cable works normally without failure, transmitting the SSPLCR signal to the receiving terminal via the cable; when the cable fails, reflecting the SSPLCR signal back to the transmitting terminal.
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公开(公告)号：US11965861B2
公开(公告)日：2024-04-23
申请号：US17743369
申请日：2022-05-12
发明人： Zhigang Sun , Xu Zhao , Yingdong Song , Xuming Niu , Yaning Chang , Qiuhong Peng
CPC分类号： G01N3/18 , G01N3/02 , G01N2203/0017 , G01N2203/0048 , G01N2203/0071 , G01N2203/0073 , G01N2203/0226
摘要： Disclosed is an equivalent acceleration method of creep loads based on a consistent failure mode. The equivalent acceleration method includes obtaining corresponding tensile strengths; obtaining corresponding creep rupture time; establishing rupture time law, minimum creep rate law and rupture strain law; calculating the value of parameter p in creep damage accumulation model; and dividing the failure mode consistency interval of creep load under variable temperature and variable load. The damage caused by the creep load in the failure mode consistency interval is calculated by using the multi-grade variable temperature and variable load creep nonlinear damage accumulation model, the damage is accelerated to the maximum creep load state in the failure mode consistency interval according to the principle of damage equivalence, and finally the equivalent acceleration of creep load is realized.
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