公开(公告)号：US11174730B2

公开(公告)日：2021-11-16

申请号：US16726831

申请日：2019-12-25

Applicant: Southwest Jiaotong University

Inventor： Keguo Sun ,  Weiping Xu ,  Zhifei Xiao ,  Yuchao Zheng ,  Mingzhao Yu ,  Jinhang Qin

IPC: E21D11/00

Abstract: The frost-resistant assembled initial support structure of the tunnel for supporting a surrounding rock includes a bearing layer, an elastic compressible structure and an inflatable airbag. A gap space is formed between the bearing layer and the surrounding rock, and the inflatable airbag and the elastic compressible structure are provided in the gap space; and the inflatable airbag after being inflated and the elastic compressible structure jointly fill up the gap space. A construction method includes providing the bearing layer in the tunnel, and forming the gap space between the bearing layer and the surrounding rock; providing the inflatable airbag and the elastic compressible structure in the gap space; and inflating the inflatable airbag and filling up the gap space with the inflatable airbag and the elastic compressible structure.

公开(公告)号：US20210348345A1

公开(公告)日：2021-11-11

申请号：US17009783

申请日：2020-09-02

Applicant: Southwest Jiaotong University

Inventor： Zhixiang YU ,  Liru LUO ,  Yuntao JIN ,  Liping GUO ,  Hu XU ,  Xin QI ,  Lei ZHAO ,  Shichun ZHAO

IPC: E01F7/04 ,  E04H17/02

Abstract: An expandable modular energy-dissipation protection net unit group includes support columns each provided at each of two ends of each support column with a first horizontal longitudinal rotation reversing device on the left side, a second horizontal longitudinal rotation reversing device on the right side and a transverse rotation reversing device on the bottom; a transverse endless support rope, a longitudinal endless support rope and connectors. The transverse endless support rope is wound on the transverse rotation reversing device. The longitudinal endless support rope is wound on the first horizontal longitudinal rotation reversing device and the second horizontal longitudinal rotation reversing device adjacent. A metal net panel is tied by the plurality of connecting members and hung on the transverse endless support rope and the longitudinal endless support rope.

公开(公告)号：US20200376557A1

公开(公告)日：2020-12-03

申请号：US16883234

申请日：2020-05-26

Applicant: Southwest Jiaotong University

Inventor： Guodong CUI ,  Yuxuan LIU ,  Chengsong ZHANG ,  Yifei CHEN ,  Qin XU

IPC: B22F3/16 ,  B22F3/10

Abstract: The disclosure provides a method of making an iron matrix composite. A Fe—Ni—P composite powder having a particle size of one to two micrometers and a Fe—N powder having a particle size of 100 to 250 nanometers are used as the raw material. The size and axial displacement of pressing heads of a graphite mold are controlled to realize the control of the porosity of porous iron. The composite produced comprises two surface layers of a Fe—Ni—P alloy and an intermediate layer of porous iron having a porosity of 14 to 39%. The method enables a reduced weight of the Fe—Ni—P alloy and enables shock absorption and damping properties to be imparted to the composite. In addition, an optional subsequent deep cryogenic treatment allows the Fe—Ni—P alloy to be subjected to phase transition from a metastable gamma-phase to an alpha-phase, thereby substantially improving the hardness and strength thereof.

公开(公告)号：US12128936B1

公开(公告)日：2024-10-29

申请号：US18777170

申请日：2024-07-18

Applicant: SOUTHWEST JIAOTONG UNIVERSITY

Inventor： Jun Zheng ,  Mingming Li ,  Sanchun Nie ,  Hao Lu

IPC: G01R29/08 ,  B61B13/08 ,  B61K9/08 ,  G01R1/16 ,  G01R33/038

CPC classification number: B61K9/08 ,  B61B13/08 ,  G01R1/16 ,  G01R29/0807 ,  G01R33/038

Abstract: A fault detection device for a superconducting electrodynamic maglev track includes a frame system and a detection system. The frame system is provided between two sidewall discrete figure-8-shaped coil tracks, and is provided with a signal processing device. The detection system is provided on each side of the frame system, and includes a lifting device and a clamping device. The lifting device is configured to adjust a vertical height of the clamping device. The clamping device is provided at an outer side of the lifting device, and is provided with a first connection portion and a second connection portion, which are respectively connected to a permanent magnet array and a receiving coil. The second connection portion is provided at periphery of the first connection portion. The receiving coil is electrically connected to the signal processing device. A fault detection method is further provided.

公开(公告)号：US20240355599A1

公开(公告)日：2024-10-24

申请号：US18759759

申请日：2024-06-28

Applicant: Southwest Jiaotong University

Inventor： Yuhong XU ,  Danni WU ,  Yucai LI ,  Haifeng LIU ,  Jun CHENG ,  Junfeng SHEN ,  Hai LIU ,  Xianqu WANG ,  Jie HUANG ,  Xin ZHANG ,  Jun HU ,  Wei LI

IPC: H01J37/32 ,  G21B1/05

CPC classification number: H01J37/32935 ,  G21B1/05 ,  H01J37/32926

Abstract: A diagnostic method and system for measuring potential and electric field of plasma are provided. According to operation parameters of a magnetic confinement fusion device and relevant parameter data of a plurality of candidate particle elements, signal-noise ratios are calculated. to select a neutral beam particle element. Beam trajectories varying in incident velocity, incident angle and sampling area are obtained by iterative calculation, and a preset parameter which enables the beam trajectories to pass through an entrance slit of an analyzer is obtained. A neutral beam that meets the preset parameter is injected into the plasma. An energy of the primary beam generated by collision ionization in a sampling area is measured, and potential of the sampling area is obtained according to law of conservation of energy. Sampling areas are detected to obtain potential spatial distribution of the plasma and a radial electric field, and the diagnostic is finished.

公开(公告)号：US20240351621A1

公开(公告)日：2024-10-24

申请号：US18759788

申请日：2024-06-28

Applicant: Southwest Jiaotong University

Inventor： Tao ZHU ,  Jingke ZHANG ,  Shoune XIAO ,  Guangwu YANG ,  Bing YANG ,  Mingmeng WANG ,  Dongdong CHEN

IPC: B61G11/12

CPC classification number: B61G11/12

Abstract: A guide-type anti-climbing energy-absorbing device based on hydraulic shearing includes an energy-absorbing tube, an anti-climbing portion, a first connecting portion, a plurality of partition plates, and two guide plates. The anti-climbing portion and the first connecting portion are respectively provided at two ends of the energy-absorbing tube. The partition plates are sequentially arranged inside the energy-absorbing tube along an axial direction to divide the interior of the energy-absorbing tube into a plurality of first energy-absorbing cavities, each filled with a first honeycomb body. The two guide plates are symmetrically arranged in the energy-absorbing tube along a vertical direction of the energy-absorbing tube. Each guide plate is arranged obliquely and includes a connecting end connected to the anti-climbing portion and a free end passing through the partition plates in sequence to extend outside the first connecting portion.

公开(公告)号：US12104338B2

公开(公告)日：2024-10-01

申请号：US17485427

申请日：2021-09-26

Applicant: Southwest Jiaotong University

Inventor： Zhixiang Yu ,  Lijun Zhang ,  Gaohong Ye ,  Liru Luo ,  Xu Hu ,  Xin Qi ,  Lei Zhao ,  Shichun Zhao

IPC: E01F7/04 ,  E02D17/20 ,  E04H17/04

CPC classification number: E01F7/045 ,  E02D17/202 ,  E04H17/05

Abstract: A combined type flexible glass net system used for protection against full-particle falling rocks on plank roads in scenic spots includes a supporting layer, an intercepting throwing layer and a flexible glass net isolating layer, wherein the supporting layer is longitudinally arranged above a protective area along a mountain, and includes a supporting steel frame and an oscillating type supporting rod; the intercepting throwing layer is supported on the supporting layer, and includes metal meshes, an along-cross-slope lower connecting rope, an along-cross-slope upper connecting rope, an along-slope connecting rope and a reinforcing rope; and the flexible glass net isolating layer includes glass plates, glass net supporting cables and a hoop type hinged piece, wherein the glass plates are connected to the glass net supporting cables through the hoop type hinged piece, and the glass net supporting cables are hung below the supporting steel frame.

公开(公告)号：US20240273744A1

公开(公告)日：2024-08-15

申请号：US18261620

申请日：2023-06-05

Applicant: Southwest Jiaotong University

Inventor： Yongding TIAN ,  Jiahui TONG ,  Yangfeng LYU ,  Xiaoyu YANG ,  Jiaxin CHEN ,  Lintao MA ,  Hu XU ,  Zhixiang YU

IPC: G06T7/579 ,  G01B11/16 ,  G06T7/207

CPC classification number: G06T7/579 ,  G01B11/16 ,  G06T7/207 ,  G06T2207/20208 ,  G06T2207/30184

Abstract: The invention relates to the technical field of intelligent construction and maintenance, and relates to a non-contact visual monitoring system and method for a flexible protective structure against rockfall disasters; it comprises a hardware system and a data analysis system, and the hardware system uses a multipoint distributed high-resolution high-speed camera to capture dynamic image sequences of a protective structure under the rockfall impact in a non-contact mode; the data analysis system comprises an impact deformation state full-field tracking module and a multipoint impact large deformation extraction module, and the impact deformation state full-field tracking module captures spatio-temporal changes of impact deformation of the protective system by adopting a full-field optical flow method, constructs a two-dimensional velocity amplitude distribution diagram and performs full-field spatio-temporal tracking of large deformation of the system.

公开(公告)号：US20240232475A1

公开(公告)日：2024-07-11

申请号：US18350120

申请日：2023-07-11

Applicant: Southwest Jiaotong University

Inventor： Lin JING ,  Zhenhao YU ,  Shaodong ZHENG ,  Kai LIU ,  Kaiyun WANG

IPC: G06F30/23

CPC classification number: G06F30/23

Abstract: The present disclosure discloses a modeling method for a rail vehicle collision finite element dummy and simulation system, and relates to the technical field of rail transit. The method according to the present disclosure includes the following steps: S1: establishing a dummy finite element model with a characteristic parameter of a target human body; S2: establishing a multi-marshaling train collision finite element model considering a vehicle body collision energy-absorbing structure and wheel-rail rolling contact behavior; S3: establishing a rigid-flexible coupling model inside a rail vehicle; and S4: establishing a passive safety simulation and analysis system integrating the rail vehicle and the dummy finite element model.

公开(公告)号：US12015358B2

公开(公告)日：2024-06-18

申请号：US17880557

申请日：2022-08-03

Applicant: Southwest Jiaotong University

Inventor： Zhengge Chen ,  Jianping Xu ,  Songrong Wu

IPC: H02K7/00 ,  H02J7/00 ,  H02M1/00 ,  H02M7/217 ,  H02N11/00 ,  H02K5/00

CPC classification number: H02N11/002 ,  H02J7/0013 ,  H02J7/0042 ,  H02K7/00 ,  H02M1/0012 ,  H02M7/217 ,  H02J2207/20 ,  H02K5/00

Abstract: The disclosure provides a portable charging device with kinetic energy recovery comprising a machine body, a kinetic energy recovery component, an AC-DC electric energy conversion component, and an energy storage component. The kinetic energy recovery component is embedded in the machine body by a locking assembly, and comprises a ring body, two springs, a conductor coil, a permanent magnet sphere, a guide rod, two sealing covers, and two bumps. The two sealing covers are symmetrically and fixedly attached to both sides of the ring body, and the middle part of the ring body and the two sealing covers form a vacuum cavity. The energy storage component is arranged at the right side of the machine body. The AC-DC electric energy conversion component is arranged at the bottom side of the machine body, and two first conductive blocks are electrically connected to the AC-DC electric energy conversion component.