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1. 发明授权

US11821874B1 Dynamic load shearing test device and method based on hopkinson bar system 有权
公开(公告)号：US11821874B1
公开(公告)日：2023-11-21
申请号：US18308753
申请日：2023-04-28
申请人： SHANDONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
发明人： Xufei Gong , Lexin Chen , Yueying Zhang , Weiyao Guo , Chengguo Zhang , Yulong Zhang
IPC分类号： G01N3/04 , G01N3/24
CPC分类号： G01N3/04 , G01N3/24 , G01N2203/0025 , G01N2203/0098 , G01N2203/0226
摘要： A dynamic load shearing test device and method based on a hopkinson bar system are provided in this disclosure, which relates to the technical field of rock detection tests. The device according to the disclosure includes a bearing frame, a carriage, a sample holding unit, a pressure environment generating unit, a sample switching unit, an incident bar and a transmission bar, and the test method includes following steps: test device assembly, device leveling, pre-test preparation, test conducting, sample angle switching and test device resetting. The disclosure has advantages that the cylindrical sample can be quickly fixed, a required temperature environment can be well maintained, the cylindrical sample can be better fixed in a high-pressure environment, rotation of the cylindrical sample is not hindered in a low-pressure environment, switching of test positions is facilitated, and test efficiency can be accelerated.

2. 发明授权

US11739637B2 Self-propelled towing simulator for deep-sea mining system applicable to natural water bodies and simulation method using the same 有权
公开(公告)号：US11739637B2
公开(公告)日：2023-08-29
申请号：US17781812
申请日：2021-04-16
申请人： SHANDONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
发明人： Linjing Xiao , Yu Wang , Yulong Zhang , Yanxin Li , Qinghui Song , Qiang Liu
IPC分类号： E21C50/02 , B63B21/56 , B63B21/66
CPC分类号： E21C50/02 , B63B21/56 , B63B21/66
摘要： A self-propelled towing simulator for a hydraulic lift system carries a gyro pose control system and a six-degree-of-freedom (DOF) platform to control the overall pose of the simulator, so that the simulator simulates six-DOF motion states including swaying, surging, yawing, rolling, pitching and heaving generated by a mining vessel under the combined action of waves and flows and required by the experimental working conditions; interventions in the pose of the simulator may be positive or negative, so that the simulator may be applied to the uncontrollable natural water bodies so as to approximate to the working conditions of the experimental requirements. The simulator may carry out experiments in open natural water bodies by use of its own autonomous sailing capability under remote wireless control and may acquire parameters such as dynamic characteristics and spatial configuration and the like of a deep-sea mining hydraulic lift subsystem in real time.

3. 发明授权

US11119002B2 Experimental apparatus for simulating lifting operation of deep-sea mining 有权
公开(公告)号：US11119002B2
公开(公告)日：2021-09-14
申请号：US16603972
申请日：2018-12-24
申请人： SHANDONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
发明人： Linjing Xiao , Qinghui Song , Yulong Zhang , Yu Wang , Shuai Zuo , Qiang Liu
IPC分类号： G01M10/00 , F04D35/00
摘要： Provided is an experimental apparatus for simulating lifting operation of deep-sea mining, which relates to the technical field of experimental equipment of deep-sea mining. By this apparatus, dynamic characteristics of a spatial structure when simulating lifting operation of deep-sea mining are solved. The apparatus includes an experimental box, a wave-making mechanism, a flowrate control mechanism, a mining simulation mechanism and a monitoring mechanism. The wave-making mechanism includes a control box and a wave-pushing board for simulating waves. The flowrate control mechanism includes a water pump, a motor, a grating board and a manifold so that the flowrate and the flow volume can be adjusted by the grating board and the manifold. The mining simulation mechanism includes an experimental ship model, a lifting pipe, a material-mixing pipe, a mineral slurry pipe, a material-delivering pipe and a material-returning pipe for simulating lifting operation states. The monitoring mechanism includes a wave height measurer, a displacement sensor, a flowrate measurer and an image collection apparatus for detecting dynamic influence of the wave height and the wave speed on the mining simulation mechanism during a mining process, especially during lifting operation. Further, the apparatus has advantages such as multi-parameter real-time monitoring, low fabrication cost and simple operation.

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