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1.发明授权公开(公告)号：US10598567B1
公开(公告)日：2020-03-24
申请号：US16613759
申请日：2018-03-15
Applicant: DALIAN UNIVERSITY OF TECHNOLOGY
Inventor： Qingchao Sun , Bao Zhang , Qingyuan Lin , Wei Sun , Bin Yang
Abstract: The present invention provides a multi-bolt loosening test machine for flange with tension, bending and torsion compound loading. The multi-bolt loosening test machine for flange with tension, bending and torsion compound loading uses a transverse load generated by a three-phase asynchronous motor as a bending load applied to a flange, uses a tension force generated by a hydraulic puller as an axial tension load, and uses a torque generated by a servo motor as a torque load applied to the flange. The test machine is different from the current device that can apply two compound loads to a single bolt, and can apply three compound loads to the multi-bolt connection flanges. The present invention can isolate three compound loads from each other without interference, and display the applied loads in real time.
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公开(公告)号：US11107750B1
公开(公告)日：2021-08-31
申请号：US17252649
申请日：2020-08-03
Applicant: DALIAN UNIVERSITY OF TECHNOLOGY
Inventor： Xueguan Song , Kunpeng Li , Changan Zhou , Chaoyong Zong , Qingye Li , Wei Sun
IPC: G01L19/00 , H01L23/473 , G01J5/00 , H02K11/25 , H02K44/04
Abstract: A magnetofluid pump device for IGBT heat dissipation and a test method therefor are provided. The magnetofluid pump device uses a liquid metal as a coolant, which can absorb more heat than an ordinary water-cooling device and better dissipate heat for IGBT chips. Temperature and pressure changes in an inlet pipe and an outlet pipe of a magnetofluid pump can be monitored in real time through temperature sensors and pressure sensors, and temperature changes of the IGBT chips can be observed in real time through a thermal imager. The test method for the magnetofluid pump device for IGBT heat dissipation proposed by the present invention is simple and easy to implement. A magnetic fluid can be driven to flow by energizing positive and negative electrodes in the magnetofluid pump under the action of magnetic fields, and water-cooling equipment can dissipate heat for the magnetic fluid in the magnetofluid pump.
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公开(公告)号：US10976146B2
公开(公告)日：2021-04-13
申请号：US16321315
申请日：2017-05-03
Applicant: Dalian University of Technology
Inventor： Qingchao Sun , Jue Wang , Xin Liu , Wei Sun , Yingjie Jiang , Jiaqi Suo
Abstract: Disclosed is a system for shape error in-situ measurement of large-scale torus, which comprises an attitude adjusting part, a rotating part and a measuring part. The attitude adjusting part comprises an attitude adjusting platform, an attitude adjusting platform motor and an adapter panel, wherein the attitude adjusting platform can adjust the rotation angles along z-axis and x-axis, the angle adjusted is controlled by the attitude adjusting platform motor, and the attitude adjusting part is connected with the rotating part through the adapter panel; the rotating part comprises a rotating index plate base and a high-precision rotating index plate which is released from fixation by a lever for rotating, rotated manually for a required angle, and then fixed again by restoring the lever; the measuring part comprises a sensor clamp, sensor holders, contact sensors and associated equipment, wherein the sensor clamp is positioned with the rotating index plate by a mandrel and then fixed by two bolts and nuts; and the sensor clamp has four groups of sensor jacks in total, with at least three jacks in each group, and a sensor holder is installed in each sensor jack and used for fixing each sensor.
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公开(公告)号：US10711609B2
公开(公告)日：2020-07-14
申请号：US16338956
申请日：2017-08-01
Applicant: DALIAN UNIVERSITY OF TECHNOLOGY
Inventor： Junzhou Huo , Wei Sun , Zhichao Meng , Xiaoqi Huang , Youneng Bao
Abstract: The present invention provides a vibration and strain monitoring method for key positions of a tunnel boring machine (TBM), and belongs to the technical field of real-time monitoring for underground construction of the TBM. The present invention aims to provide a monitoring device and an all-weather monitoring and forecasting system thereof. The present invention acquires monitoring data through vibration and strain sensors and a wireless data transmission system, thereby realizing long-term real-time monitoring for vibration and strain states of key positions of a main machine system of the TBM during operation, reminding operators in time for maintenance and repair, preventing fatigue breakage on key weak positions of the main machine system of the TBM and ensuring safe and reliable operation of the TBM. The present invention further provides an evaluation method for strain states of positions which cannot be measured, i.e., an equivalent mapping method, thereby building a set of vibration monitoring and strain monitoring systems for the tunneling process of the key positions of the main machine system of the TBM.
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公开(公告)号：US12182224B2
公开(公告)日：2024-12-31
申请号：US17799165
申请日：2022-05-05
Applicant: DALIAN UNIVERSITY OF TECHNOLOGY
Inventor： Xueguan Song , Liangliang Yang , Xiaonan Lai , Xiwang He , Kunpeng Li , Yong Pang , Wei Sun , Peng Li
IPC: G06F17/10
Abstract: An online fast processing method for real-time data based on edge computing. In the method, a dynamic online de-noising method is adopted to remove noise contained in speeds to ensure the effectiveness and accuracy of de-noising results; for the displacement integrated online, an efficient method is adopted for dynamic online de-noising to further reduce the effectiveness of drift in the displacement value on final integration results; and under the condition of ensuring the accuracy of an integration method, an integration algorithm is embedded into an edge device to realize fast calculation and analysis of data near a data source and realize dynamic fast integration of online signals based on the edge device, which provides effective references for efficient processing and calculation of data.
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Patent Agency Ranking
公开(公告)号：US10661351B2
公开(公告)日：2020-05-26
申请号：US16341398
申请日：2017-10-11
Applicant: DALIAN UNIVERSITY OF TECHNOLOGY
Inventor： Chunzheng Duan , Yumin Liu , Wei Sun , Yuwen Sun , Fangyuan Zhang , Kang Ju
Abstract: A tool quick-stop device for a lathe has a base, bottom plate, front side plate, rear side plate, right side plate, left side plate, top fixed plate, tool bar, cam lever, buffer spring, cylindrical guide rail, adjusting nut, first locking nut, double end stud, second locking nut, pressure spring, pressing plate, hold-down bolt and pin shaft. The cam lever supports the tool bar before tool falling. When tool falling is required, the cam lever is rotated through external force. When the cam lever rotates over a certain position, the tool bar instantaneously loses supporting force. Under strong pressure of the pressure spring, the tool bar falls the tool with great acceleration and is separated from the cutting region in a short period of time and the cutting root is frozen.
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公开(公告)号：US11519818B2
公开(公告)日：2022-12-06
申请号：US16767418
申请日：2019-06-17
Applicant: DALIAN UNIVERSITY OF TECHNOLOGY
Inventor： Xueguan Song , Rongyu Wang , Xiaomin Xiang , Chaoyong Zong , Fengjie Zheng , Kunpeng Li , Wei Sun
IPC: G01M13/003 , F16K37/00
Abstract: A test device and a test method for dynamic characteristics of a spring-loaded safety valve are mainly used for testing opening, emission and return seat characteristics of the safety valve. The air pressure stabilizer is used for stably adjusting gas pressure in a pressure vessel. The quick start and stop device is used for controlling opening and closing of the pressure vessel. The pipeline gas mass flow detecting device is used for detecting the mass flow of the gas in a pipeline. The safety valve stem displacement detecting device is used for detecting the displacement change of a safety valve stem. The acquisition system is used for collecting, processing and saving experimental data. The device of the present invention has simple structure and high precision, and provides guarantee for the test of the dynamic characteristics of the safety valve.
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8.发明授权公开(公告)号：US11131579B2
公开(公告)日：2021-09-28
申请号：US16606991
申请日：2018-02-07
Applicant: DALIAN UNIVERSITY OF TECHNOLOGY
Inventor： Qingchao Sun , Bo Yuan , Wei Sun , Jiecheng Ding
Abstract: The present invention discloses a piezoelectric patch-based real-time and high-precision bolt preload detection method and system. A piezoelectric patch is used as an ultrasonic excitation source and pasted on the head of a bolt, and the high-precision fitting relationship between the ultrasonic change of time-of-flight and the bolt preload is established according to the law of the ultrasonic change of time-of-flight of single echo with the stress so that the real-time detection of the bolt preload is realized by using the mathematical relationship. Compared with the previous method using ultrasonic probes, the present invention eliminates the error caused by the uncertainty of couplant thickness and further improves the measurement precision by using the change of time-of-flight of single echo. Meanwhile, the low-error rate measurement of the bolt preload is realized at a low cost and without affecting the structural performance.
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9.发明授权公开(公告)号：US11204291B2
公开(公告)日：2021-12-21
申请号：US16172342
申请日：2018-10-26
Applicant: DALIAN UNIVERSITY OF TECHNOLOGY
Inventor： Qingchao Sun , Bo Yuan , Wei Sun , Weiqiang Huang
Abstract: The present invention discloses an interface ultrasonic reflectivity-pressure relation curve establishment method and a loading testbed. The loading testbed comprises a force displayer, a control terminal, an oscilloscope, an immersion ultrasonic transducer, a large cylinder, a small cylinder, an upper panel, a movable plate, a force sensor, a lower panel, an ultrasonic transceiver and a small cylinder connecting plate. Compared with the existing schemes, the interface ultrasonic reflectivity-pressure relation curve establishment method and the loading testbed provided by the present invention can construct a more accurate ultrasonic reflectivity-pressure relation curve, and are high in detection precision.
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公开(公告)号：US10768071B2
公开(公告)日：2020-09-08
申请号：US16338906
申请日：2017-09-11
Applicant: DALIAN UNIVERSITY OF TECHNOLOGY
Inventor： Qingchao Sun , Bao Zhang , Chuanhua Wang , Wei Sun , Yue Ma
Abstract: The present invention provides a testing machine for accurately controlling looseness of a transverse load, and belongs to the technical field of mechanical testing devices. The testing machine for accurately controlling looseness of the transverse load uses a motor to control the generated transverse displacement, controls the generated transverse load by controlling the motor, and controls the motor through signal feedback from the sensor to keep the generated transverse load basically stable within a small range of a fixed value. Unlike the existing testing machine for looseness of the transverse load that can only provide one fixed transverse displacement load, the present invention can provide a desired stable transverse displacement load and can provide a desired stable transverse force load to adapt to simulation experiments for different bolt loading conditions.
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