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公开(公告)号：US12276194B2
公开(公告)日：2025-04-15
申请号：US18818611
申请日：2024-08-29
Inventor： Weiyao Guo , Linpeng Xu , Lexin Chen , Yongqiang Zhao , Bo Li , Chengzhi Xia , Chun Zhu , Gan Li , Lei Zhang
Abstract: An automatic support device for resisting rock burst in mines is provided, which includes bases symmetrically distributed, sliding frames are slidably connected to the bases, hydraulic rods are fixedly connected to the bases, and telescopic ends of the hydraulic rods are fixedly connected to the adjacent sliding frames. The sliding frames are fixedly connected to brackets, and the brackets symmetrically distributed are provided with a main support plate, on which pushing rods are provided. The device can slow down the impact force of the device when rock burst occurs in the mine, at the same time, it plays a supporting role in the mine, ensuring the stability of the roof of the mine.
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Patent Agency Ranking
公开(公告)号：US12062167B1
公开(公告)日：2024-08-13
申请号：US18398665
申请日：2023-12-28
Applicant: SHANDONG UNIVERSITY
Inventor： Mingshun Jiang , Lingyu Sun , Shanshan Lv , Juntao Wei , Lei Zhang , Faye Zhang , Qingmei Sui , Lei Jia
CPC classification number: G06T7/001 , G06T5/20 , G06T5/70 , G06T7/74 , G06T7/77 , G06T2207/10132 , G06T2207/20076 , G06T2207/30108
Abstract: A probability multiply-sum structural damage imaging positioning method and system based on a delay factor includes obtaining optimal excitation frequency and group-velocity theoretical correction function based on numerical simulation of composite laminates; based on optimal excitation frequency, obtaining ultrasonic guided wave response signals of composite laminates in healthy and lossy states and sensor coordinates used for signal collection; performing path screening based on ultrasonic guided wave response signals; obtaining group-velocity correction function based on measured group velocity obtained based on ultrasonic guided wave response signal in healthy state, and calculating actual delay time based on obtained effective path, group-velocity correction function, and sensor coordinates; obtaining damage delay factor based on actual and reference delay time; forming path probability distribution based on damage delay factor, and performing path probability multiply-sum operation to obtain structural damage imaging result; and obtaining structural damage positioning result based on peak point coordinates of imaging result.
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公开(公告)号：US12000799B1
公开(公告)日：2024-06-04
申请号：US18400246
申请日：2023-12-29
Applicant: SHANDONG UNIVERSITY
Inventor： Mingshun Jiang , Juntao Wei , Feiyu Teng , Shanshan Lv , Lingyu Sun , Lei Zhang , Faye Zhang , Qingmei Sui , Lei Jia
IPC: G01N29/24
CPC classification number: G01N29/2437
Abstract: A digital, self-diagnosis, sensing intelligent layer integrating active and passive monitoring, including: a capacitance testing unit, configured to charge a to-be-tested piezoelectric transducer by generating a step signal, and determine a transition moment, to obtain a free capacitance value of the to-be-tested piezoelectric transducer; a frequency testing unit, to charge the to-be-tested piezoelectric transducer by generating sinusoidal signals of different frequencies, and detect a resonant frequency according to the transition moment; an active and passive monitoring module, to obtain analog response signals in an active mode and a passive mode, and convert the analog response signals into digital response signals for transmission; and a main control module, to transmit a self-diagnosis result and the digital response signals to a guided wave host. The intelligent layer integrates active damage scanning and passive impact monitoring while implementing self-diagnosis for a piezoelectric transducer state.
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4.发明授权公开(公告)号：US10684112B2
公开(公告)日：2020-06-16
申请号：US16074647
申请日：2017-09-29
Applicant: SHANDONG UNIVERSITY
Inventor： Xinzhuang Cui , Weidong Cao , Lei Zhang , Junwei Su , Yilin Wang , Jun Li , Sheqiang Cui , Zhongxiao Wang
Abstract: The structure has a subgrade or slope to be monitored and strip-shaped smart geosynthetic material compound devices. The strip-shaped smart geosynthetic material compound devices are buried to run through a subgrade or slope predicted slip crack surface. Gaps between the strip-shaped smart geosynthetic material compound devices and borehole inner walls are filled so that the force environment of the strip-shaped smart geosynthetic material compound devices is close to the subgrade or slope internal environment. Each strip-shaped smart geosynthetic material compound device has a strip-shaped geogrid, lead, and heat shrinkable tube. The lead is arranged in a length direction of the geogrid, and the lead and geogrid are fixedly connected at an interval of a set distance, with each fixed point forming a measuring point. The geogrid is wrapped in the heat shrinkable tube, and a free end of the lead is drawn out of the heat shrinkable tube.
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公开(公告)号：US11067505B2
公开(公告)日：2021-07-20
申请号：US16753398
申请日：2019-03-18
Applicant: SHANDONG UNIVERSITY
Inventor： Guoqun Zhao , Lei Zhang , Guilong Wang
Abstract: A small angle laser scatterometer with a temperature-pressure-controllable sample cell and a characterization method, the scatterometer formed by sequentially arranging a laser source, an adjustable attenuator, a beam expanding lens, a polarizer, the temperature-pressure-controllable sample cell, an analyzer, a transmission-type projection screen and an image acquisition device. The temperature-pressure-controllable sample cell is composed of a visual autoclave, a temperature control component, a rapid cooling component and a pressure control component. An evolution process of microstructures of polymer materials in specific atmosphere and rapid temperature and pressure changing environments on a scale of 0.5 μm to 10 μm. Researching a condensed state evolution law of the polymer materials in high-pressure environments can provide a process solution for regulating crystallization and phase separation of the polymer materials and new thought for further and deep reveal of a polymer material crystallization mechanism.
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6.发明授权公开(公告)号：US11060965B2
公开(公告)日：2021-07-13
申请号：US16753360
申请日：2019-03-18
Applicant: SHANDONG UNIVERSITY
Inventor： Guoqun Zhao , Lei Zhang , Guilong Wang
Abstract: A microscopic observation system with a temperature-pressure-controllable sample cell and methods. The system can be configured to perform common optical microscopic observation and polarizing microscopic observation. The system is composed of a visual autoclave, a temperature control component, a rapid cooling component, a pressure control component and an optical imaging system, and can be configured to observe an evolution process of microstructures of polymer materials in specific atmosphere and rapid temperature and pressure changing environments in a scale of 1 μm-1 cm. A novel characterization means for researching a condensed state evolution law of polymers in high-pressure environments, and also a new thought for deep reveal of the polymer crystallization mechanism and regulation of crystallization and phase separation behaviors of the polymer materials.
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