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公开(公告)号：US10435045B2
公开(公告)日：2019-10-08
申请号：US15522919
申请日：2016-01-18
Applicant: CENTRAL SOUTH UNIVERSITY
Inventor： Guangjun Gao
Abstract: An anti-derailment apparatus for a bogie of a rail vehicle of the disclosure comprises at least one mounting seat and an anti-derailment slide plate. The transverse orientation of the anti-derailment slide plate on the mounting seat and the extending length of the anti-derailment slide plate in the vertical direction meet the following requirements simultaneously: 1) making the anti-derailment slide plate located at the inside of the ground rail when the rail vehicle runs normally; 2) when at least one wheelset of the rail vehicle climbs rail, the anti-derailment slide plate acts on the ground rail to form lateral limitation points so as to limit the freedom of the rail vehicle and make it still constrained by the ground rail.
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公开(公告)号：US12012130B2
公开(公告)日：2024-06-18
申请号：US17044826
申请日：2018-10-30
Applicant: CENTRAL SOUTH UNIVERSITY
Inventor： Guangjun Gao , Weiyuan Guan , Shuai Wang
CPC classification number: B61G11/12 , B61D15/06 , B61F19/04 , B60Y2200/30
Abstract: A reusable collision energy absorption device for a rail vehicle includes an impacted rod, a damping structure including a damping plug, a guide tube and a damping elastic element, a return structure including a return piston and an elastic return element, an outer tube having a tubular structure, and an interior partitioned into a front cavity and a rear cavity through a partition plate provided with a damping hole in the form of a through hole. A portion of the damping plug is in the damping hole when the damping plug is in an initial position, and the damping plug can move in a front-rear direction when the device is impacted. A gap between a radial thickest portion of the damping plug and the damping hole allows the fluid to circulate between the front cavity and the rear cavity.
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Patent Agency Ranking
公开(公告)号：US20190092355A1
公开(公告)日：2019-03-28
申请号：US16081066
申请日：2016-09-30
Applicant: CENTRAL SOUTH UNIVERSITY
Inventor： Guangjun Gao
Abstract: A collision energy absorption apparatus for a rail vehicle, including a connection member, a base, and an energy-absorption splitting tube provided on the outer side in the radial direction of the connection member. The inner wall and outer wall of the energy-absorption splitting tube includes one or more pairs of slits having radial positions corresponding to each other. Each pair of slits includes an inner slit and an outer slit. Each slit is a non-closed linear slit. The slit has a width of 0.05-0.8 mm. The sum of the depths of each pair of slits is less than the wall thickness of the energy-absorption splitting tube.
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公开(公告)号：US20180208219A1
公开(公告)日：2018-07-26
申请号：US15520391
申请日：2016-10-15
Applicant: CENTRAL SOUTH UNIVERSITY
Inventor： Guangjun Gao
Abstract: Disclosed is a telescopic type collision energy absorption device for a rail vehicle, which includes two sets of mechanisms functioned individually. The two sets of mechanisms are mounted respectively on either side of end portion of the vehicle. Each set of the mechanism includes an anti-climber, an energy absorption circular tube, pull rings, cutters, cutter fixing blocks, a mounting base, a cutter base, a guide cartridge, a double-acting type air cylinder, a base, bolts, torsional springs, pins, locating slots, a double-acting type solenoid valve, a controller and air storage tank. When the energy absorption device is in a non-operating state, the double-acting type air cylinder is in a state of tension where it pulls the energy absorption circular tube in such a way that the energy absorption circular tube is retracted into the interior of the guide cartridge, the cutters are pressed against the outer wall of the energy absorption circular tube. Before a collision of the vehicle, the double-acting type air cylinder under the effect of the high-pressure air pushes the second tube in such a way that the second tube is ejected outwards, the cutters are pressed against the locating slots of the energy absorption circular tube under the effect of spring force. The cutters cut the energy absorption structure and absorb the energy when the energy absorption circular tube is subjected to an external force and retracts towards the interior of the guide cartridge.
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公开(公告)号：US10556603B2
公开(公告)日：2020-02-11
申请号：US16081066
申请日：2016-09-30
Applicant: CENTRAL SOUTH UNIVERSITY
Inventor： Guangjun Gao
Abstract: A collision energy absorption apparatus for a rail vehicle, including a connection member, a base, and an energy-absorption splitting tube provided on the outer side in the radial direction of the connection member. The inner wall and outer wall of the energy-absorption splitting tube includes one or more pairs of slits having radial positions corresponding to each other. Each pair of slits includes an inner slit and an outer slit. Each slit is a non-closed linear slit. The slit has a width of 0.05-0.8 mm. The sum of the depths of each pair of slits is less than the wall thickness of the energy-absorption splitting tube.
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公开(公告)号：US10279822B2
公开(公告)日：2019-05-07
申请号：US15520391
申请日：2016-10-15
Applicant: CENTRAL SOUTH UNIVERSITY
Inventor： Guangjun Gao
Abstract: A telescopic type collision energy absorption device includes a first tube, a second tube telescoped within the first tube, and a telescopic mechanism connected with the second tube by passing through the first tube, the first tube being mounted with a cutting mechanism for cutting an outer wall of the second tube, when the device is in a non-operating state, the telescopic mechanism pulls the second tube to retract into the first tube; in a state prior to the collision of a vehicle, the telescopic mechanism under an effect of high-pressure air pushes the second tube to eject outwards, the cutting mechanism is pressed against locating slots of the second tube under an effect of a spring force, the cutting mechanism cuts the second tube and absorbs energy when the second tube is subjected to an external force and retracts towards interior of the first tube.
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7.发明申请公开(公告)号：US20250131162A1
公开(公告)日：2025-04-24
申请号：US19006304
申请日：2024-12-31
Applicant: CENTRAL SOUTH UNIVERSITY
Inventor： Yong Peng , Gongxun Deng , Guangjun Gao , Song Yao , Suchao Xie , Ping Xu , Shuguang Yao
IPC: G06F30/23 , G06F30/15 , G06F119/14
Abstract: The disclosure provides a construction method including steps of: constructing a detailed model and a simplified model of the rail vehicle using finite element method based on the three-dimensional structure of the rail vehicle; initially setting the simplified model in accordance with the detailed model, including specifying materials, mechanical properties parameters, and mass point; setting different simplification thickness ratio to obtain a plurality of sets of the simplified models, designing longitudinal and lateral collision conditions, and in each type of the collision conditions, performing collision simulations on the detailed model and each set of the simplified models under each thickness ratio to obtain respective collision response curves; calculating a total CORA value corresponding to the plurality of sets of the simplified models; selecting an optimal simplified model from n sets of the simplified models with the highest total CORA values.
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