CN106364521A - Combined type energy absorption devices special for rail vehicle and rail vehicle provided with same - Google Patents
Combined type energy absorption devices special for rail vehicle and rail vehicle provided with same Download PDFInfo
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- CN106364521A CN106364521A CN201610913674.XA CN201610913674A CN106364521A CN 106364521 A CN106364521 A CN 106364521A CN 201610913674 A CN201610913674 A CN 201610913674A CN 106364521 A CN106364521 A CN 106364521A
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- energy absorption
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F19/00—Wheel guards; Bumpers; Obstruction removers or the like
- B61F19/04—Bumpers or like collision guards
Abstract
The invention discloses combined type energy absorption devices special for a rail vehicle and the rail vehicle. Each combined type dedicated energy absorption device comprises a male die puncher pin assembly, a female die assembly and an energy absorption assembly, wherein the energy absorption assembly is arranged in the female die assembly and comprises a thin wall plastic variable energy absorption structure and a crushing type energy absorption structure, and a side wing plate of the thin wall plastic variable energy absorption structure is inserted into the female die assembly and arranged on the outer side of the crushing type energy absorption structure in a sleeving mode; the male die puncher pin assembly comprises anti-climbing toothed plate, an impact rod and guiding rods; the other end of the impact rod is provided with a rectangular force uniformizing plate; the guiding rods are inserted into guiding holes of the female die assembly; the rectangular force uniformizing plate makes contact with the sealed end of the thin wall plastic variable energy absorption structure in an attached mode; and the male die puncher pin assembly uniformly transmits longitudinal impact force borne by the male die puncher pin assembly to the thin wall plastic variable energy absorption structure and the crushing type energy absorption structure through the rectangular force uniformizing plate. The rail vehicle is provided with the two sets of energy absorption devices. The combined type energy absorption devices special for the rail vehicle and the rail vehicle have the advantages that the structure and the manufacturing technology are simple, installing is convenient, deformation is stable and controllable, and the specific energy absorption capacity is high.
Description
Technical field
The present invention relates to the field of safety protection of rail truck, particularly to the energy absorption device being exclusively used in rail vehicle and set
There is the rail truck of this device.
Background technology
The Crash of Railway Passenger Vehicles accident frequently occurring both at home and abroad, has brought heavy and bitter lesson.Especially
Recently as the continuous rise of road surface tramcar, collision on the ground probability greatly increases.Railway is important as national economy
Infrastructure and the popular vehicles, should transport the security of the lives and property of protection passenger and driver and conductor all the time as track traffic
The starting point of row safety.Therefore, when train collision accident cannot avoid, need development rail truck passive security protection badly and grind
Study carefully.
In vehicle collisions, due to the needs of security protection, impact kinetic energy will completely be absorbed or be dissipated, therefore be needed
To be required using special element as energy absorbing structure with the crash-worthiness meeting vehicle structure.One design is good resistance to
Hitting property structure must controllably absorb or dissipate all clashes into kinetic energy, in these energy absorption machines of material and structure
In system, metal thin-wall structure and aluminum honeycomb texture, as the endergonic structure of a kind of inexpensive, high ratio of strength to weight, high energy absorbing efficiency, obtain
Arrive extensive practical application.
Endergonic structure is divided into carrying endergonic structure and special endergonic structure, so-called carrying endergonic structure: runs bar normal
Under part, there is good transmission longitudinal force performance, producing METHOD FOR LARGE DEFORMATION ELASTOPLASTIC energy absorption when there is shock accident；So-called special
Endergonic structure: using not as structural bearing, only producing METHOD FOR LARGE DEFORMATION ELASTOPLASTIC energy absorption when there is shock accident, to increase energy-absorbing
" than the energy-absorbing " of structure, special endergonic structure can be replaced after losing efficacy in an impact.
Content of the invention
The technical problem to be solved in the present invention is to overcome the deficiencies in the prior art, provides a kind of structure and processing technology letter
Single, easy for installation, stabilization is controlled, can be with composite endergonic and combination type for the rail vehicle special energy-absorbing bigger than energy-absorbing
Device；A kind of rail vehicle being provided with this energy absorption device is also provided.
For solving above-mentioned technical problem, technical scheme proposed by the present invention is:
A kind of special energy absorption device of the combination type for rail vehicle, including punch assembly, can be fixed on floor underframe for vehicle
Die assembly and be installed in the energy-absorbing assembly in die assembly；Described energy-absorbing assembly includes thin-walled flow endergonic structure and pressure
Routed formula endergonic structure, described crushing type energy-absorbing structure one end is detachably installed in described die assembly, and described thin-walled flow is inhaled
Can structure be the tubular structure of one end open, its side wall offers a plurality of open slot and forms a plurality of independent side wing；Described cylinder
The opening of shape structure is inserted in die assembly by described side wing and is sheathed on outside the other end of crushing type energy-absorbing structure
Side, described punch assembly includes anti-creep tooth plate, the impact bar in the middle part of the anti-creep tooth plate back side and located at anti-creep tooth plate
The guide post of back side surrounding, the other end of described impact bar is provided with the rectangle parallel with anti-creep tooth plate even power plate, described guide post
It is inserted in the guiding in the hole of described die assembly, even power plate is contacted with the blind end laminating of thin-walled flow endergonic structure, described convex
Stamping head assembly is uniformly transferred the longitudinal impact force bearing to described thin-walled flow endergonic structure and crushing type by even power plate
Endergonic structure.
Improvement further as to technique scheme:
Preferably, described thin-walled flow endergonic structure is thin metal plate structure, and described blind end is a cross base plate, described
Side wing is four, and four side wings are formed after the bending of 90 degree of relevant position by the four edges of described cross base plate.
Preferably, described guide post is set to four and the rectangular corner being distributed in the anti-creep tooth plate back side, described die group
Part includes die base, and described die base includes rectangular base plate and four hollow guidings located at rectangular base plate surrounding prop up
Post, the other end of guide stanchion is integral by four square mutation beams connections, and the two ends of each mutation beam are equipped with a projection
Step, forms a stopper slot between two raised step, four side wings of described thin-walled flow endergonic structure pass through accordingly
Stopper slot is inserted in the cavity of die base, and end is contacted with rectangular base plate；Described rectangular base plate both sides are provided with multiple energy
The connecting hole being connected with floor underframe for vehicle, is provided with the rectangle limitting casing of protrusion, described crushing type energy-absorbing knot in the middle part of rectangular base plate
One end of structure is embedded at the spacing inframe of described rectangle.
Preferably, described die assembly also includes die cover plate, described die cover plate include rectangular-shaped top plate and enclose located at
The edge guard of top board surrounding, described edge guard is covered on the outside of described mutation beam, and the corner of described top board offers leads
Hole and the first bolt hole, the middle part of top board offers square hole, described guide post be inserted in after passing from described guide hole described in lead
To in the central hollow hole of pillar, described even power plate passes through the cross base plate of described square hole and described thin-walled flow endergonic structure
Contact；Top board is fixed on mutation beam by being arranged in the bolt of described first bolt in the hole.
Preferably, described crushing type energy-absorbing structure is thin-wall metal crushing type energy-absorbing structure or concrete dynamic modulus endergonic structure；Institute
Stating concrete dynamic modulus endergonic structure is honeycomb aluminum, cellular steel or foamed aluminium；When crushing type energy-absorbing structure is honeycomb aluminum or cellular steel, its
Hole direction is consistent with impact of collision direction.
Preferably, all it is welded with deep floor between described impact bar and anti-creep tooth plate and even power plate.
Preferably, the front of described anti-creep tooth plate is evenly arranged with anti-climbing tooth.
Preferably, described impact bar is prismatic impact bar.
Preferably, described guide post is cylindrical or prismatic structures；The hollow of described guide stanchion is to join with guide post
The cylindrical hole closing or prismatic hole.
As same inventive concept, the present invention also provides a kind of rail vehicle, including vehicle body bottom frame, described vehicle body bottom frame
Front end be symmetrical in the longitudinal midline direction of underframe and be equiped with the special energy absorption device of two groups of combinations of the above formulas, wherein said die
The bolt that the rectangular base plate of base connects in the hole by being arranged in its both sides is detachably installed on described vehicle body bottom frame.
Compared with prior art, it is an advantage of the current invention that:
A kind of special energy absorption device of combination type of the present invention, except can utilize as the special endergonic structure of traditional rail truck
The plastic deformation energy absorption of crushing type energy-absorbing structure is moreover it is possible to make full use of the installing space in floor underframe for vehicle structure, in conjunction with punching
Compression moulding becomes principle, by installing thin-walled flow endergonic structure between punch assembly and die assembly, also can be in punching press
Cheng Dangzhong produces plastic deformation apparatus with shock absorbing, makes the whole device both can be with composite endergonic, thus absorbing when being impacted
More impact kinetic energies；METHOD FOR LARGE DEFORMATION ELASTOPLASTIC controlled in order can also be produced to absorb impact kinetic energy.Thin-walled flow endergonic structure
Energy consumption can also be adjusted according to the pretightning force between die base and die cover plate: pretightning force is bigger, and it occurs punching press
The energy absorbing during plastic deformation is also bigger.And under normal operating conditions, the main composition structure in this device also has one
Fixed bearing capacity, bears certain horizontal and vertical load.The present invention has structure and processing technology is relatively easy, installation side
Just the advantages of, and its stabilization is controlled, bigger than energy-absorbing, can be widely applied in the energy-dissipating structure of rail truck.This
The chassis of rail vehicle front end of invention is equiped with two groups of above-mentioned special energy absorption devices, equally also has the advantages that above-mentioned.
Brief description
Fig. 1 is the general assembly structural representation of the embodiment of the present invention 1.
Fig. 2 is the decomposition texture schematic diagram of the embodiment of the present invention 1.
Fig. 3 is the perspective view of the embodiment of the present invention 1 convex mould punch-head assembly.
Fig. 4 is the perspective view of thin-walled flow endergonic structure in the embodiment of the present invention 1.
Fig. 5 is the perspective view of the embodiment of the present invention 1 concave die cap plate.
Fig. 6 is the perspective view of die base in the embodiment of the present invention 1.
Fig. 7 is the structural representation of the embodiment of the present invention 2.
Marginal data:
1st, punch assembly；11st, anti-creep tooth plate；12nd, guide post；13rd, even power plate；14th, impact bar；15th, floor；2nd, die lid
Plate；21st, guide hole；22nd, the first bolt hole；23rd, square hole；24th, top board；25th, edge guard；3rd, thin-walled flow endergonic structure；4th, press
Routed formula endergonic structure；5th, die base；51st, mutation beam；52nd, guide stanchion；53rd, rectangular base plate；54th, limitting casing；55th, connect
Hole；56th, central hollow hole；57th, stopper slot；58th, the second bolt hole；6th, the special energy absorption device of combination type.
Specific embodiment
For the ease of understanding the present invention, below in conjunction with Figure of description and preferred embodiment, the present invention is made more complete
Face, meticulously describe, but protection scope of the present invention is not limited to embodiment in detail below.
Embodiment 1
As shown in figs 1 to 6, the special energy-absorbing device embodiment of the combination type for rail vehicle of a kind of present invention, including punch
Punch-head assembly 1, the die assembly being fixed on floor underframe for vehicle and be installed in the energy-absorbing assembly in die assembly；Suction therein
Energy assembly is deformed absorbing impact energy when being used for colliding, including thin-walled flow endergonic structure 3 and crushing type energy-absorbing structure 4,
Crushing type energy-absorbing structure 4 one end is detachably installed in die assembly inner bottom part, and thin-walled flow endergonic structure 3 is the cylinder of one end open
Shape structure, its side wall offers a plurality of open slot and forms a plurality of independent side wing；The opening of tubular structure passes through side wing
It is inserted in die assembly and is sheathed on outside the other end of crushing type energy-absorbing structure 4.Punch assembly 1 includes anti-creep tooth plate
11st, the impact bar 14 in the middle part of anti-creep tooth plate 11 back side and four guide posts 12 located at anti-creep tooth plate 11 back side surrounding,
The other end of impact bar 14 is provided with the rectangle parallel with anti-creep tooth plate 11 even power plate 13, and guide post 12 is inserted in leading of die assembly
To in the hole, even power plate 13 is contacted with the blind end laminating of thin-walled flow endergonic structure 3, and punch assembly 1 is by even power plate 13
The longitudinal impact force bearing is uniformly transferred to thin-walled flow endergonic structure 3 and crushing type energy-absorbing structure 4.Energy-absorbing in the present invention
Assembly pass through simultaneously setting crushing type energy-absorbing structure and thin-walled flow endergonic structure so as to except as traditional rail truck special
Endergonic structure is the same can be using the plastic deformation energy absorption of crushing type energy-absorbing structure moreover it is possible to make full use of in floor underframe for vehicle structure
Installing space, in conjunction with punching press flow principle, inhaled by the thin-walled flow being arranged between punch assembly and die assembly
, there is plastic deformation apparatus with shock absorbing in punching course, make whole device can be combined suction when impacting in energy structure
Can, thus absorbing more impact kinetic energies.
In the present embodiment, die assembly includes die base 5 and die cover plate 2, and die base 5 includes rectangular base plate 53,
It is respectively equipped with a hollow cylinder structure directing pillar 52, the other end of four guide stanchion 52 leads at the corner of rectangular base plate 53
Cross four square shaft-like mutation beams 51 and connect integral, make whole die base be an overall structure, Stability Analysis of Structures is reliable, leads
The effect of transmitting portions longitudinal force can also be played to pillar 52 in addition to guide effect.It is convex that the two ends of each mutation beam 51 are equipped with one
Play step, form a stopper slot 57 between two raised step and be used for plugging and spacing guiding of side wing, in the present embodiment, limit
The depth of position groove 57 is 4mm.Thin-walled flow endergonic structure 3 is thin metal plate structure, and its blind end is a cross base plate, side
Wing plate is four, and four side wings are to be formed after the bending of 90 degree of relevant position by the four edges of its cross base plate.Thin-walled is moulded
Four side wings becoming endergonic structure 3 are inserted in the cavity of die base 5 from corresponding stopper slot 57, end and rectangular base plate
53 contacts；Stopper slot 57 plays positioning and the effect of guiding to side wing.When by punching press, side wing flows through stopper slot 57 two ends
Two square edges occur successively bending --- stretching --- again the plastic deformation of bending and absorb impact kinetic energy.Rectangular base plate 53
Both sides are provided with multiple connecting holes 55, a whole set of energy absorption device can be fixed on floor underframe for vehicle by wearing bolt, can carry and all
Change longitudinal impact force to be transferred to vehicle body bottom frame.The middle part of rectangular base plate 53 is provided with the rectangle limitting casing 54 of protrusion, and crushing type is inhaled
One end of energy structure 4 is embedded in rectangle limitting casing 54, plays fixing and position-limiting action.
In the present embodiment, die cover plate 2 is the structure matching with die base 5, and it includes rectangular-shaped top plate 24, top board 24
All around it is provided with edge guard 25, edge guard 25 is covered on the outside of mutation beam 51.The corner of top board 24 offers guide hole 21,
Middle part offers square hole 23, and four guide posts 12 are inserted in the central hollow hole 56 of guide stanchion 52 after passing from guide hole 21
In, even power plate 13 passes through the cross contacts baseplate of this square hole 23 and thin-walled flow endergonic structure 3；Also set on the corner of top board 24
There is the first bolt hole 22, can be by die lid by wearing bolt in the second bolt hole 58 of the first bolt hole 22 and mutation beam 51
Plate 2 is fixed on mutation beam 51.Top board 24 and the work of all restricted thin-walled flow endergonic structure 3 deformation trend of edge guard 25
With.The energy consumption of thin-walled flow endergonic structure 3 can also be adjusted according to the pretightning force between die base 5 and die cover plate 2
Whole: pretightning force is bigger, it occurs the energy absorbing during punching press plastic deformation also bigger.
In the present embodiment, crushing type energy-absorbing structure 4 is thin-wall metal crushing type energy-absorbing structure or concrete dynamic modulus endergonic structure；Many
Hole endergonic structure is honeycomb aluminum, cellular steel or foamed aluminium；When crushing type energy-absorbing structure 4 is honeycomb aluminum or cellular steel, its hole
Gap direction is consistent with the impact of collision direction born.Thin-walled flow endergonic structure 3 He after colliding, in this energy absorption device
Crushing type energy-absorbing structure 4 occurs plastic deformation to absorb impact kinetic energy under the impact of collision effect of punch assembly 1, because of plasticity
The thin-walled flow endergonic structure 3 of deformation wear and crushing type energy-absorbing structure 4 can replace, and whole energy absorption device can weigh again
Multiple use.
In the present embodiment, between impact bar 14 and anti-creep tooth plate 11 and even power plate 13, all it is welded with deep floor 15.Impact
Bar 14 is prismatic impact bar 14.Guide post 12 is cylindrical or prismatic structures；The hollow of guide stanchion 52 be and guide post
The cylindrical hole of 12 cooperations or prismatic hole.
The operation principle of the special energy absorption device of combination type of the present invention:
As shown in figure 1, when punch assembly is subject to impact of collision to act on, impact bar is with speedv 1Along longitudinally running, one
Aspect, by the thin-walled flow endergonic structure after square even power plate punching press, makes the middle part cross bottom of thin-walled flow endergonic structure
There is linear deformation to die component internal in plate, four side wings of thin-walled flow endergonic structure are straight at two of mutation beam two ends
There is the plastic deformation of bending --- stretching --- bending more successively absorbing impact kinetic energy in angle corner；On the other hand, even power plate
Moved inward by punched thin-wall flow endergonic structure and extrude crushing type energy-absorbing structure, make crushing type energy-absorbing structure that plasticity to occur
Deformation absorbs more impact kinetic energies then.
This combination type energy absorption device can not only produce METHOD FOR LARGE DEFORMATION ELASTOPLASTIC controlled in order to absorb when crashing
Impact kinetic energy, and under normal operating conditions, the punch assembly in this device, die assembly also have certain carrying
Ability, bears certain horizontal and vertical load.
Embodiment 2
As shown in fig. 7, the present invention also provides a kind of rail vehicle, including vehicle body bottom frame, in the front end installing space of vehicle body bottom frame
The special energy absorption device of combination type 6 being equiped with two groups of embodiments 1, the special energy absorption device 6 of two groups of combination types is symmetrical in car body bottom
The longitudinal midline direction of frame is installed.Wherein, the rectangular base plate 53 of die base 5 is by being arranged in the spiral shell in its both sides connecting hole 55
Bolt is detachably installed on vehicle body bottom frame, and punch assembly 1 protrudes horizontally up vehicle body bottom frame front end.
The rail vehicle of the present invention, when being impacted, can make full use of the installing space in floor underframe for vehicle structure, by group
In box-like special energy absorption device 6, the impact of collision single compressed effect of impact bar is converted to the bending work of thin-walled flow endergonic structure
With the conquassation metamorphosiss with crushing type energy-absorbing structure, make whole device can produce energy-absorbing in bending and conquassation plastic deformation
Effect, thus absorb more impact kinetic energies.Thin-walled flow endergonic structure and crushing type energy-absorbing structure are after the plastic deformation occurs
Can replace, whole energy absorption device can be reused again, simple installation is cost-saved.
Claims (10)
1. a kind of special energy absorption device of the combination type for rail vehicle it is characterised in that: include punch assembly, can fix
In the die assembly on floor underframe for vehicle and be installed in the energy-absorbing assembly in die assembly；Described energy-absorbing assembly includes thin-walled flow
Endergonic structure and crushing type energy-absorbing structure, described crushing type energy-absorbing structure one end is detachably installed in described die assembly, institute
State the tubular structure that thin-walled flow endergonic structure is one end open, its side wall offers a plurality of open slot and forms a plurality of independent side
Wing plate；The opening of described tubular structure is inserted in die assembly by described side wing and is sheathed on crushing type energy-absorbing structure
The other end outside, described punch assembly includes anti-creep tooth plate, the impact bar in the middle part of the anti-creep tooth plate back side and sets
In the guide post of anti-creep tooth plate back side surrounding, the other end of described impact bar is provided with the rectangle parallel with anti-creep tooth plate even power plate,
Described guide post is inserted in the guiding in the hole of described die assembly, and even power plate is fitted with the blind end of thin-walled flow endergonic structure and connect
Touch, described punch assembly is uniformly transferred the longitudinal impact force bearing to described thin-walled flow endergonic structure by even power plate
With crushing type energy-absorbing structure.
2. the special energy absorption device of combination type according to claim 1 it is characterised in that: described thin-walled flow endergonic structure is
Thin metal plate structure, described blind end is a cross base plate, and described side wing is four, and four side wings are by described cross
The four edges of shape base plate are formed after the bending of 90 degree of relevant position.
3. the special energy absorption device of combination type according to claim 2 it is characterised in that: described guide post is set to four and is in
In the corner at the anti-creep tooth plate back side, described die assembly includes die base to distributed rectangular, and described die base includes rectangular base
Plate and four hollow guiding pillars located at rectangular base plate surrounding, the other end of guide stanchion passes through four square mutation beams even
Connect integral, the two ends of each mutation beam are equipped with a raised step, form a stopper slot between two raised step, described thin
Four side wings of wall flow endergonic structure are inserted in the cavity of die base by corresponding stopper slot, and end and rectangle
Contacts baseplate；Described rectangular base plate both sides are provided with multiple connecting holes being connected with floor underframe for vehicle, set in the middle part of rectangular base plate
There is the rectangle limitting casing of protrusion, one end of described crushing type energy-absorbing structure is embedded at the spacing inframe of described rectangle.
4. the special energy absorption device of combination type according to claim 3 it is characterised in that: described die assembly also includes die
Cover plate, described die cover plate includes rectangular-shaped top plate and encloses edge guard located at top board surrounding, and described edge guard is covered on
The outside of described mutation beam, the corner of described top board offers guide hole and the first bolt hole, and the middle part of top board offers square hole, institute
State and be inserted in the central hollow hole of described guide stanchion after guide post passes from described guide hole, described even power plate passes through described
Square hole and the cross contacts baseplate of described thin-walled flow endergonic structure；Top board is by being arranged in the spiral shell of described first bolt in the hole
Bolt is fixed on mutation beam.
5. the special energy absorption device of combination type according to claim 4 it is characterised in that: described crushing type energy-absorbing structure is thin
Wall metal crushing type energy-absorbing structure or concrete dynamic modulus endergonic structure；Described concrete dynamic modulus endergonic structure is honeycomb aluminum, cellular steel or foam
Aluminum；When crushing type energy-absorbing structure is honeycomb aluminum or cellular steel, its hole direction is consistent with impact of collision direction.
6. the special energy absorption device of combination type according to claim 5 it is characterised in that: described impact bar and anti-creep tooth plate and
All it is welded with deep floor between even power plate.
7. the special energy absorption device of the combination type according to any one of claim 1-6 it is characterised in that: described anti-creep tooth plate
Front is evenly arranged with anti-climbing tooth.
8. the special energy absorption device of the combination type according to any one of claim 1-6 it is characterised in that: described impact bar be rib
Cylindricality impact bar.
9. the special energy absorption device of the combination type according to any one of claim 3-6 it is characterised in that: described guide post be circle
Cylindricality or prismatic structures；The hollow of described guide stanchion is the cylindrical hole or prismatic hole coordinating with guide post.
10. a kind of rail vehicle, including vehicle body bottom frame it is characterised in that: symmetrical in the front end installing space of described vehicle body bottom frame
It is equiped with the special energy absorption device of two groups of combination types as any one of claim 3-6 in the longitudinal midline direction of underframe,
The bolt that the rectangular base plate of wherein said die base connects in the hole by being arranged in its both sides is detachably installed in described car body
On underframe, punch component level stretches out in vehicle body bottom frame front end.
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| CN201610913674.XA CN106364521B (en) | 2016-10-20 | 2016-10-20 | The special energy absorption device of combined type for rail vehicle and the rail vehicle provided with the device |
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| CN201610913674.XA CN106364521B (en) | 2016-10-20 | 2016-10-20 | The special energy absorption device of combined type for rail vehicle and the rail vehicle provided with the device |
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| CN107264566A (en) * | 2017-07-03 | 2017-10-20 | 西南交通大学 | A kind of anti-bias energy absorption device of rail vehicle |
| CN107336721A (en) * | 2017-07-13 | 2017-11-10 | 中南大学 | A kind of energy absorption device based on necking down plastic deformation |
| CN107487337A (en) * | 2017-09-19 | 2017-12-19 | 北京交通大学 | A kind of rail vehicle anticreeper |
| CN110450810A (en) * | 2019-08-13 | 2019-11-15 | 中南大学 | A kind of corrugated composite endergonic device and the rail vehicle with the device |
| CN113104057A (en) * | 2021-04-23 | 2021-07-13 | 江苏车瑞智能装备有限公司 | High-safety long-life rail vehicle accessory |
| CN113361003A (en) * | 2021-05-07 | 2021-09-07 | 中南大学 | Design method of bearing type energy absorption structure of railway vehicle |
| CN113616192A (en) * | 2021-07-01 | 2021-11-09 | 中南大学 | Train passenger collision stress behavior test system and method |
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