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公开(公告)号：US20230333065A1
公开(公告)日：2023-10-19
申请号：US18340878
申请日：2023-06-25
Applicant: Taiyuan University of Technology
Inventor： Peng Liu , Chaozhu Fan , Han Wang , Fujiang Cui , Zhiqiang Li
CPC classification number: G01N29/07 , G01N29/4472 , G01N29/041 , G01N2291/011 , G01N2291/0231
Abstract: The present disclosure discloses a method of identifying delamination damage of an arc-shaped composite laminate, and belongs to the technical field of delamination damage identification. According to the method, an elliptical loci method and a fitted normal PDF for damage imaging are probabilistically integrated under a Bayesian framework. A plurality of characteristics sensitive to damage can be reasonably fused, known prior information is combined with measured time of flight (ToF) data, and the posterior distribution of unknown parameters is sampled by using a Markov Chain Monte Carlo (MCMC) algorithm, so that the reliability of damage location is improved, and the applicability of Lamb waves in damage location of plate structures is enhanced. In addition, the present disclosure can accurately identify the delamination damage of the arc-shaped composite laminate by processing the measured time of flight (ToF), and the absolute positioning error is less than 1 cm.
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公开(公告)号：US20230266777A1
公开(公告)日：2023-08-24
申请号：US17984696
申请日：2022-11-10
Applicant: Taiyuan University of Technology
CPC classification number: G05D16/16 , G05D16/028
Abstract: Disclosed is a flow control system for digital and mechanical redundant pressure compensation. On the basis of an original pressure compensation valve, two-position three-way electromagnetic valves are added to control the opening and closing of pressure compensation valves. Furthermore, pressure sensors and a controller are added, so that the system has a digital pressure compensation function. When the pressure sensor breaks down, the flow control system is switched to a mechanical compensation mode to achieve mechanical pressure compensation, the problem that system flow cannot be controlled when the sensor breaks down is solved, and the purpose of redundancy control is achieved. Moreover, the pressure compensation valve in the loop where the highest load is located can be controlled to be completely opened through the two-position three-way electromagnetic valve to reduce pressure loss of the valve port, and the pressure is not affected by load fluctuation.
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63.发明授权公开(公告)号：US11703431B2
公开(公告)日：2023-07-18
申请号：US17585960
申请日：2022-01-27
Applicant: Taiyuan University of Technology
Inventor： Guorui Feng , Xudong Shi , Jinwen Bai , Xinyu Yang , Boqiang Cui , Xianjie Du
CPC classification number: G01N3/10 , G01N3/06 , G01N3/02 , G01N3/08 , G01N2203/0003 , G01N2203/0017 , G01N2203/0048 , G01N2203/04 , G01N2203/06
Abstract: A device and a method for testing tensile resistance of multiple-row grouped pillars in an inclined goaf are provided. The bottoms of stands of the device are connected with a testing machine base, and the tops of the stands of the device are connected with a transverse frame; an upper slideable clamping seat and a lower slideable clamping seat are semi-cylindrical blocks, multiple lower loading jaws that are positioned to have a same central line are arranged on the lower slideable clamping seat, each of the lower loading jaws is opposite to a corresponding one of the upper loading jaws, the lower loading jaws are welded to the lower slideable clamping sea to test the tensile resistance of samples together; the upper part of the upper slideable clamping seat is connected with an upper pressure disk, and the lower slideable clamping seat is connected with a lower pressure disk.
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公开(公告)号：US20230151830A1
公开(公告)日：2023-05-18
申请号：US17985205
申请日：2022-12-15
Applicant: Taiyuan University of Technology
Inventor： Long Quan , Shufei Qiao , Yunxiao Hao , Lei Ge , Bo Wang
CPC classification number: F15B15/088 , F15B13/06 , F15B2015/206
Abstract: The present disclosure relates to a hydraulic-electric coupling driven multi-actuator system and control method, and belongs to technical fields of hydraulic transmission and electro-mechanical transmission. The hydraulic-electric coupling driven multi-actuator system comprises one or more hydraulic-electric hybrid driven actuators, first inverters, control valves, centralized hydraulic units and control units, wherein the number of the first inverters and the number of the control valves are the same as that of the hydraulic-electric hybrid driven actuators; each hydraulic-electric hybrid driven actuator is correspondingly connected with one first inverter and one control valve; the centralized hydraulic units are connected with the control valves and configured to supply oil for the hydraulic-electric hybrid driven actuators and to perform power compensation; and the control units are respectively connected with the hydraulic-electric hybrid driven actuators, and each control unit is configured to control output torque of a first motor of the corresponding hydraulic-electric hybrid driven actuator based on pressure information of the hydraulic-electric hybrid driven actuator, such that pressure of driving cavities of the hydraulic-electric hybrid driven actuators is equal, which greatly reduces throttling loss caused by the load differences of the actuators.
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公开(公告)号：US20230066668A1
公开(公告)日：2023-03-02
申请号：US17497019
申请日：2021-10-08
Applicant: Taiyuan University of Technology
Inventor： Zhongkai Ren , Tao Wang , Xiao Liu , He Li , Jianchao Han , Dongping He , Qingxue Huang
Abstract: A single-side tower-type roller system based asynchronous rolling mill for rolling an ultra-thin composite strip and a hydraulic system therefor are provided. The mill includes a machine frame and reel assemblies. An upper roller system assembly and a lower roller system assembly are arranged in the machine frame. A down-pressing assembly is arranged on the machine frame and used to adjust a roll gap between the upper roller system assembly and the lower roller system assembly. A support roller balance assembly is arranged on the machine frame and used to support and balance the upper roller system assembly. The lower roller system assembly includes right and left working rollers. The right working roller is a plain roller. The left working roller is a patterned roller. A left-pressing assembly is arranged on the machine frame and used to adjust a roll gap between the right and left working rollers.
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Patent Agency Ranking
公开(公告)号：US20230054599A1
公开(公告)日：2023-02-23
申请号：US18048023
申请日：2022-10-19
Applicant: TAIYUAN UNIVERSITY OF TECHNOLOGY
Inventor： Jianguo LIANG , Weilin YIN , Chunjiang ZHAO , Yanchun ZHU , Chen WANG , Qi ZHANG , Xiaodong ZHAO
Abstract: The present disclosure provides a high-efficiency filament helical winding device, which includes a frame body and a plurality of multi-filar guides. The frame body is provided with a through-hole, the plurality of multi-filar guides distributed in a circumference along a center of the through-hole are rotationally connected to the frame body and filament is extended out from each multi-filar guide in the plurality of multi-filar guides, and the frame body is provided with a first driving mechanism that drives each multi-filar guide to rotate.
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公开(公告)号：US20230052873A1
公开(公告)日：2023-02-16
申请号：US17974338
申请日：2022-10-26
Applicant: TAIYUAN UNIVERSITY OF TECHNOLOGY
Inventor： Tao Wang , Qingshan Ding , Shufeng Wei , Zhenhua Wang , Xiao Liu , Xiaobin Fu , Zhongkai Ren
IPC: B21B29/00
Abstract: A hydraulically controlled backing roller includes a mandrel, two cover plates which are installed at two ends of the mandrel through screws respectively, and two screwdown gears which are installed at two end portions of the mandrel respectively. The two screwdown gears are engaged with an output rack of a screwdown hydraulic cylinder, multiple saddle ring sets are sleeved on the mandrel at equal intervals, a saddle ring of each of the saddle ring sets is fixed with a frame through a fan-shaped plate, a backing bearing is provided between two adjacent saddle ring sets; an inner eccentric ring of the each of the saddle ring sets is driven to rotate by hydraulic driving, so that the mandrel has a deflection deformation, and the deflection deformation is transmitted to other adjacent rollers through the backing bearing.
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公开(公告)号：US11479449B2
公开(公告)日：2022-10-25
申请号：US15764679
申请日：2017-02-16
Applicant: TAIYUAN UNIVERSITY OF TECHNOLOGY
Inventor： Ziming Kou , Guijun Gao , Gongjun Cui , Jing Zhang , Haiqing Wang , Xueliang Wei
Abstract: A vertical lifting device and method are provided. The vertical lifting device includes a fixed frame fixed to a foundation. A first cavity allowing passage of a lifting rope is provided in the middle of the fixed frame. A sliding frame moving horizontally on the fixed frame is arranged above the fixed frame. A second cavity allowing passage of the lifting rope is provided in the middle of the sliding frame. At least two stepping vehicles alternately lowering or lifting weights are arranged on the sliding frame and move on the sliding frame. The stepping vehicles are spaced in preset distances. The lifting rope penetrates through the stepping vehicles in sequence. Each stepping vehicle is provided with a clamping part clamping the lifting rope and a driving mechanism driving the stepping vehicle to move on the sliding frame.
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公开(公告)号：US20220251956A1
公开(公告)日：2022-08-11
申请号：US17501129
申请日：2021-10-14
Applicant: TAIYUAN UNIVERSITY OF TECHNOLOGY
Inventor： Zhen LI , Xiaojun Yang , Peng Yang , Zhilong Fang , Jiapeng Zhao , Weichao Fan , Chunwang Zhang , Wenpu Li , Haina Jiang
Abstract: A multi-level cross-district surface well pattern deployment method is provided. Firstly, a first horizontal well is drilled from a location on a land surface corresponding to a junction H1 of a district rise coal pillar of the first district C1 in a first level and an upper mine field boundary coal pillar. A multilateral well is drilled from a location on the land surface corresponding to a junction H3 of a level coal pillar between the first and second levels, and the district rise coal pillar of the first district C1 in the first level. Liquid nitrogen is injected for permeability improvement after a gas drainage quantity decreases to 20% of an initial quantity. Gas drainage is repeated multiple times until the drainage quantity of coal bed methane through a gas drainage pipe of the horizontal pipe is reached 3 m3/min.
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70.发明申请公开(公告)号：US20220244152A1
公开(公告)日：2022-08-04
申请号：US17585960
申请日：2022-01-27
Applicant: Taiyuan University of Technology
Inventor： Guorui FENG , Xudong SHI , Jinwen BAI , Xinyu YANG , Boqiang CUI , Xianjie DU
Abstract: A device and a method for testing tensile resistance of multiple-row grouped pillars in an inclined goaf are provided. The bottoms of stands of the device are connected with a testing machine base, and the tops of the stands of the device are connected with a transverse frame; an upper slideable clamping seat and a lower slideable clamping seat are semi-cylindrical blocks, multiple lower loading jaws that are positioned to have a same central line are arranged on the lower slideable clamping seat, each of the lower loading jaws is opposite to a corresponding one of the upper loading jaws, the lower loading jaws are welded to the lower slideable clamping sea to test the tensile resistance of samples together; the upper part of the upper slideable clamping seat is connected with an upper pressure disk, and the lower slideable clamping seat is connected with a lower pressure disk.
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