CN107503246A - A kind of piston type particle damping energy dissipation vibration damping railway ballast - Google Patents
A kind of piston type particle damping energy dissipation vibration damping railway ballast Download PDFInfo
- Publication number
- CN107503246A CN107503246A CN201710655759.7A CN201710655759A CN107503246A CN 107503246 A CN107503246 A CN 107503246A CN 201710655759 A CN201710655759 A CN 201710655759A CN 107503246 A CN107503246 A CN 107503246A
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- Prior art keywords
- damping
- piston type
- type particle
- energy dissipation
- railway ballast
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Links
- 238000013016 damping Methods 0.000 title claims abstract description 139
- 239000002245 particle Substances 0.000 title claims abstract description 101
- 230000021715 photosynthesis, light harvesting Effects 0.000 title claims abstract description 43
- 229910052751 metal Inorganic materials 0.000 claims abstract description 25
- 239000002184 metal Substances 0.000 claims abstract description 25
- 239000000463 material Substances 0.000 claims description 10
- 239000004568 cement Substances 0.000 claims description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 7
- 239000004576 sand Substances 0.000 claims description 4
- 239000002689 soil Substances 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 239000011398 Portland cement Substances 0.000 claims description 3
- 238000007596 consolidation process Methods 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 3
- 239000010931 gold Substances 0.000 claims description 3
- 229910052737 gold Inorganic materials 0.000 claims description 3
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 3
- 230000010355 oscillation Effects 0.000 claims description 3
- 239000004575 stone Substances 0.000 claims description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 3
- 230000015271 coagulation Effects 0.000 claims description 2
- 238000005345 coagulation Methods 0.000 claims description 2
- 239000003245 coal Substances 0.000 claims 1
- 239000012634 fragment Substances 0.000 claims 1
- 230000009471 action Effects 0.000 abstract description 3
- 230000008859 change Effects 0.000 abstract description 3
- 238000004140 cleaning Methods 0.000 abstract description 3
- 230000006866 deterioration Effects 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 238000003672 processing method Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000001629 suppression Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- FGBJXOREULPLGL-UHFFFAOYSA-N ethyl cyanoacrylate Chemical group CCOC(=O)C(=C)C#N FGBJXOREULPLGL-UHFFFAOYSA-N 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B1/00—Ballastway; Other means for supporting the sleepers or the track; Drainage of the ballastway
- E01B1/002—Ballastless track, e.g. concrete slab trackway, or with asphalt layers
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B19/00—Protection of permanent way against development of dust or against the effect of wind, sun, frost, or corrosion; Means to reduce development of noise
- E01B19/003—Means for reducing the development or propagation of noise
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Railway Tracks (AREA)
- Vibration Dampers (AREA)
Abstract
The invention discloses a kind of piston type particle damping energy dissipation vibration damping railway ballast, the piston type particle damping energy dissipation vibration damping railway ballast includes concrete block and the piston type particle damping element being embedded in inside the concrete block；The piston type particle damping element includes housing, and the enclosure interior is provided with damping particles and metal ball；It is connected between the metal ball and the concrete block through wire.It is an advantage of the invention that, piston type particle damping energy dissipation vibration damping railway ballast is applied to the changeover portion of track, the dynamic characteristics of changeover portion can effectively be improved, the dynamic loading that railway ballast is delivered on roadbed can also be effectively reduced, reduce subgrade settlement, so that vehicle and the mutual dynamic action of circuit will not accelerate the deterioration of line status without significant change when train passes through changeover portion at a high speed；In addition the present invention in piston type particle damping energy dissipation vibration damping railway ballast do not influence regular link maintenance make firm by ramming and cleaning.
Description
Technical field
The invention belongs to technical field of rail traffic, and in particular to a kind of piston type particle damping energy dissipation vibration damping railway ballast.
Background technology
Field of track traffic development into China since 21st century is at full speed, the especially development of high-speed railway.
During constantly building high-speed railway and in order to meet the needs of railway speed raising, rail track changeover portion problem（Roadbed
It is excessive with bridge, roadbed and tunnel it is excessive）Start to highlight, and obtain construction and the continuous attention of designing unit.It is right
In the comfort level of the whether suitable overall trip speed and passenger for determining high-speed railway to a certain extent of changeover portion issue handling.
The subject matter of changeover portion shows the Geometric irregularity and rigidity irregularity of track.Traditional changeover portion processing side
Method divides Roadbed Treatment and track processing method.Roadbed Treatment has：The reinforcement local method banketed after platform, rubble class good material
Material fills, use intensity is high, deforms small quality material and fills（Such as lower intensity level concrete）.Track processing method has：
The softer side increase track vertical rigidity of changeover portion, the harder side of changeover portion reduce track vertical rigidity, set auxiliary rail to improve
Track structure frame stiffness.These processing methods have the usable condition and shortcoming of oneself, such as Roadbed Treatment can band
Come potential subgrade defect risk during runing.Simultaneously in road and bridge transition due to being constructed between abutment and roadbed,
Changeover portion roadbed can not be fully compacted, and cause changeover portion to be more easy to settle.And the geological condition in China is special without a large amount of
High-quality roadbed filling also bring difficulty for traditional processing method.
The content of the invention
According to the deficiencies of the prior art described above, It is an object of the present invention to provide a kind of piston type particle damping energy dissipation subtracts
Shake railway ballast, and the piston type particle damping energy dissipation vibration damping railway ballast is by the way that piston type particle damping element is embedded in railway ballast, effectively
Ground improves the damping of railway ballast, so as to reach the purpose for the dynamic characteristics for improving changeover portion.
The object of the invention is realized and completed by following technical scheme：
A kind of piston type particle damping energy dissipation vibration damping railway ballast, the piston type particle damping energy dissipation vibration damping railway ballast include concrete block
And it is embedded in the piston type particle damping element inside the concrete block；The piston type particle damping element includes shell
Body, the enclosure interior are provided with damping particles and metal ball；Connect between the metal ball and the concrete block through wire
Connect fixation.
The both sides of the metal ball have been respectively fixedly connected with a wire, and two wires are each passed through institute
Two relative side walls of housing are stated, and are extended to inside the concrete block.
The part that the wire consolidates with concrete block inside is in the shape of a spiral.
The housing is hexahedron, and its length of side is between 1.3 ~ 1.5cm.
The material of the damping particles is the combination of any one or more in tungsten powder, lead powder, copper powder and iron powder；Institute
The particle diameter for stating damping particles is 0.001 ~ 0.5mm；The filling rate of damping particles is between 50 ~ 90% described in the enclosure interior.
The material density of the particle diameter of the damping particles, the filling rate of the damping particles and the damping particles with
The Oscillation Amplitude of the concrete block in the course of the work is directly proportional.
The diameter of the metal ball is between 4.5 ~ 5.5mm.
The concrete block is positive tetrahedron；The sharp corner of the concrete block is handled by fillet.
The volume ratio of cement and sand is 1 in the concrete block:1, the cement is the silicate that strength grade is 52.5
Cement.
Metallic framework is embedded with inside the concrete block, the case bonding is on the metallic framework.
It is an advantage of the invention that the piston type particle damping energy dissipation vibration damping railway ballast have it is bigger damp, more preferable vibration damping
Effect；The piston type particle damping energy dissipation vibration damping railway ballast is applied to the changeover portion of track, can effectively improve the dynamic of changeover portion
Force characteristic, the dynamic loading that railway ballast is delivered on roadbed can also be effectively reduced, reduce subgrade settlement so that train passes through at a high speed
Vehicle will not accelerate the deterioration of line status with the mutual dynamic action of circuit without significant change during changeover portion；In addition, the piston type
Particle damping energy dissipation vibration damping railway ballast do not influence regular link maintenance make firm by ramming and cleaning.
Brief description of the drawings
Fig. 1 is the three-dimensional view of piston type particle damping energy dissipation vibration damping railway ballast in the present invention；
Fig. 2 is distribution schematic diagram of the piston type particle damping element in concrete block in the present invention；
Fig. 3 is the structural representation of piston type particle damping element in the present invention；
Fig. 4 is the structural representation of metallic framework in the present invention.
Embodiment
The feature of the present invention and other correlated characteristics are described in further detail by embodiment below in conjunction with accompanying drawing, with
It is easy to the understanding of technical staff of the same trade：
Such as Fig. 1-4, mark 1-8 is respectively in figure：Piston type particle damping energy dissipation vibration damping railway ballast 1, concrete block 2, piston type
Grain damping element 3, housing 4, damping particles 5, metal ball 6, wire 7, metallic framework 8.
Embodiment：As shown in Figure 1, 2, the present embodiment is specifically related to a kind of piston type particle damping energy dissipation vibration damping railway ballast 1, should
Piston type particle damping energy dissipation vibration damping railway ballast 1 includes concrete block 2 and the piston type particle being embedded in inside concrete block 2 resistance
Buddhist nun's element 3.
As shown in Figure 1, 2, the concrete block 2 of the present embodiment is positive tetrahedron, and its length of side is 6cm；In order to avoid using
During concrete block 2 sharp corner concrete disintegrating so that cause the hardened of railway ballast, it is necessary to sharp corner to concrete block 2
Handled by fillet；During chamfered, the concrete in the sophisticated 1cm regions for the wedge angle of concrete block 2 of adjusting the distance is justified
Angle is handled；The straight length on each side of concrete block is 4cm after processing；The volume ratio of cement and sand is 1 in concrete block 2:1；
The cement that concrete block 2 uses be strength grade for 52.5 portland cement.
As shown in Figure 2,3, the piston type particle damping element 3 inside concrete block 2 is embedded in be mainly used in absorbing piston
Formula particle damping energy dissipation vibration damping 1 vibrational energy in the course of the work of railway ballast；Piston type particle damping element 3 includes housing 4, shell
Body 4 is internally provided with damping particles 5 and metal ball 6；It is connected between metal ball 6 and concrete block 2 through wire 7；At this
In embodiment, the both sides of metal ball 6 have been respectively fixedly connected with an one metal wire 7, and two one metal wires 7 are each passed through the two of housing 4
Individual relative side wall, and the inside concrete consolidation of concrete block 2 is extended to, the side wall of housing 4 offers to be passed through for wire 7
Through hole.
As shown in Figures 1 to 3, piston type particle damping element 3 is a kind of passive vibration control technology；When piston type particle hinders
When Buddhist nun's passive energy dissipation railway ballast 1 is in running order, the vibration of piston type particle damping energy dissipation vibration damping railway ballast 1 passes through concrete block 2
It is transferred to piston type particle damping element 3 so that the damping particles 5 in piston type particle damping element 3 vibrate；Mix simultaneously
Solidifying soil block 2 pulls the metal ball 6 in piston type particle damping element 3 by wire 7 so that metal ball 6 produces vibration；In gold
In the vibration processes for belonging to ball 6 and damping particles 5, damping particles 5 can collide and rub with metal ball 6, damping particles 5 it
Between also can collide and rub；Collision and friction can consume vibrational energy, and vibrational energy is converted into heat, so as to realize consumption
Dissipate the effect of vibrational energy；Piston type particle damping element 3 is embedded in inside concrete block 2, can effectively strengthen this implementation
The damping of piston type particle damping energy dissipation vibration damping railway ballast 1 of example and the ability of dissipation vibrational energy.
As shown in figure 3, in the present embodiment, the housing 4 of piston type particle damping element 3 is thin for 2mm Q195 by thickness
Regular hexahedron made of steel plate, its length of side is between 1.3 ~ 1.5cm；Used at the joining thin steel sheet of housing 4 with alpha-cyanoacrylate
Ethyl ester forms for the metal glue sticking of primary raw material.
As shown in Figure 1,3, in the present embodiment, the material of damping particles 5 is appointing in tungsten powder, lead powder, copper powder and iron powder
Anticipate one or more combinations, the ratio of the damping particles 5 by adjusting various materials, the totality of damping particles 5 can be adjusted
Density；The particle diameter of damping particles 5 is 0.001mm to 0.5mm；The filling rate of the internally-damped particle 5 of housing 4 50% to 90% it
Between；In order to reach more preferable effectiveness in vibration suppression, the filling rate of damping particles 5 and damping in the particle diameters of damping particles 5, housing 4
The material density of grain 5 is directly proportional to piston type particle damping energy dissipation vibration damping 1 Oscillation Amplitude in the course of the work of railway ballast.
As shown in Figure 2,3, in the present embodiment, a diameter of 1mm of the through hole passed through in the side wall of housing 4 for wire 7；Gold
Category silk 7 is a diameter of 0.3mm thin wire, and wire 7 is connected by way of welding with metal ball 6；Metal ball 6 is that diameter exists
4.5mm is to the small iron ball between 5.5mm, and the diameter of metal ball 6 is bigger, and its effectiveness in vibration suppression is better；For the ease of production, each metal
Ball 6 can use the small iron ball of diameter identical；The end of wire 7 extends to the inside concrete of concrete block 2 through housing 4,
And consolidated with concrete；In the present embodiment the part of wire 7 and concrete consolidation in the shape of a spiral, this cause wire 7 with
Connection between concrete block 2 is more firm, and then make it that wire 7 will not be from the coagulation of concrete block 2 in vibration processes
Depart from soil.
As shown in Figure 2,4, in the present embodiment, concrete block 2 is internally provided with metallic framework 8；Metallic framework 8 is by diameter
It is made up of 2mm thin wire；The region that metallic framework 8 surrounds is in positive tetrahedron, and one is respectively bonded with the corner of metallic framework 8
Piston type particle damping element 3；In the present embodiment, knot is made as just piston type particle damping element 3 in metallic framework 8
Structure, not as the primary structure member inside concrete block 2；The length of side of metallic framework 8 is 4cm, and such size can be to live
Plug particle damping element 3 reserves certain protective layer.
The production process of the piston type particle damping energy dissipation vibration damping railway ballast 1 of the present embodiment specifically includes following steps：
1）The shape of concrete block 2 according to Fig. 1, make the length of side and be 6cm and carry the equilateral tetrahedron template of fillet, and
It is placed on the ground of factory；
2）As shown in figure 4, make piston type particle damping element 3 and metallic framework 8, and by piston type particle damping element 3
The specified location of metallic framework 8 is bonded to by metal-to-metal adhesive；
3）As shown in Figure 2,4, the metallic framework 8 for being bonded with piston type particle damping element 3 is put into template, poured into template
Enter mortar；The volume ratio of cement and sand is 1 in mortar:1；Cement use strength grade for 52.5 portland cement；Vibrate close
Conserved after reality, be stripped after 28 days, the production of piston type particle damping energy dissipation vibration damping railway ballast 1 terminates.
As shown in Figure 1, 2, in application process, the piston type particle damping energy dissipation vibration damping railway ballast of the present embodiment can be used
1 replaces stone matter railway ballast of the prior art；Piston type is embedded with the piston type particle damping energy dissipation vibration damping railway ballast 1 of the present embodiment
Particle damping element 3, the piston type particle damping energy dissipation vibration damping railway ballast 1 that can effectively dissipate of piston type particle damping element 3 exist
Vibrational energy in the course of work, equivalent to the damping for improving piston type particle damping energy dissipation vibration damping railway ballast 1.
Compared with stone matter railway ballast of the prior art, the piston type particle damping energy dissipation vibration damping railway ballast of the present embodiment has more
It is big damp, more preferable effectiveness in vibration suppression；The piston type particle damping energy dissipation vibration damping railway ballast of the present embodiment is applied to the mistake of track
Section is crossed, can effectively improve the dynamic characteristics of changeover portion, the dynamic loading that railway ballast is delivered on roadbed can also be effectively reduced, is dropped
Lower roadbed settles so that vehicle will not accelerate with the mutual dynamic action of circuit without significant change when train passes through changeover portion at a high speed
The deterioration of line status；In addition the piston type particle damping energy dissipation vibration damping railway ballast of the present embodiment does not influence smashing for regular link maintenance
Gu and cleaning.
Claims (10)
- A kind of 1. piston type particle damping energy dissipation vibration damping railway ballast, it is characterised in that：The piston type particle damping energy dissipation vibration reduction road The tiny fragments of stone, coal, etc. includes concrete block and the piston type particle damping element being embedded in inside the concrete block；The piston type particle resistance Buddhist nun's element includes housing, and the enclosure interior is provided with damping particles and metal ball；The metal ball and the concrete block it Between be connected through wire.
- A kind of 2. piston type particle damping energy dissipation vibration damping railway ballast according to claim 1, it is characterised in that：The metal ball Both sides be respectively fixedly connected with a wire, two wires be each passed through two of the housing it is relative Side wall, and extend to inside the concrete block.
- A kind of 3. piston type particle damping energy dissipation vibration damping railway ballast according to claim 1 or 2, it is characterised in that：The gold Belong to the part of consolidation inside silk and the concrete block in the shape of a spiral.
- A kind of 4. piston type particle damping energy dissipation vibration damping railway ballast according to claim 1, it is characterised in that：The housing is Hexahedron, its length of side is between 1.3 ~ 1.5cm.
- A kind of 5. piston type particle damping energy dissipation vibration damping railway ballast according to claim 1, it is characterised in that：The damping The material of grain is the combination of any one or more in tungsten powder, lead powder, copper powder and iron powder；The particle diameter of the damping particles is 0.001~0.5mm；The filling rate of damping particles is between 50 ~ 90% described in the enclosure interior.
- A kind of 6. piston type particle damping energy dissipation vibration damping railway ballast according to claim 5, it is characterised in that：The damping Particle diameter, the filling rate of the damping particles and the material density of the damping particles of grain are working with the concrete block During Oscillation Amplitude it is directly proportional.
- A kind of 7. piston type particle damping energy dissipation vibration damping railway ballast according to claim 1, it is characterised in that：The metal ball Diameter between 4.5 ~ 5.5mm.
- A kind of 8. piston type particle damping energy dissipation vibration damping railway ballast according to claim 1, it is characterised in that：The concrete Block is positive tetrahedron；The sharp corner of the concrete block is handled by fillet.
- A kind of 9. piston type particle damping energy dissipation vibration damping railway ballast according to claim 1 or 8, it is characterised in that：It is described mixed The volume ratio of cement and sand is 1 in solidifying soil block:1, the cement is the portland cement that strength grade is 52.5.
- A kind of 10. piston type particle damping energy dissipation vibration damping railway ballast according to claim 1, it is characterised in that：The coagulation Metallic framework is embedded with inside soil block, the case bonding is on the metallic framework.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710655759.7A CN107503246B (en) | 2017-08-03 | 2017-08-03 | Piston type particle damping energy-consumption vibration reduction railway ballast |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710655759.7A CN107503246B (en) | 2017-08-03 | 2017-08-03 | Piston type particle damping energy-consumption vibration reduction railway ballast |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107503246A true CN107503246A (en) | 2017-12-22 |
| CN107503246B CN107503246B (en) | 2024-04-02 |
Family
ID=60690610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710655759.7A Active CN107503246B (en) | 2017-08-03 | 2017-08-03 | Piston type particle damping energy-consumption vibration reduction railway ballast |
Country Status (1)
| Country | Link |
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| CN (1) | CN107503246B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108409231A (en) * | 2018-03-12 | 2018-08-17 | 武汉理工大学 | The high spin system material of built-in empty bead based on particle damping principle |
| CN110337214A (en) * | 2019-05-09 | 2019-10-15 | 厦门大学 | Oscillation damping method, electronic equipment and printed circuit board based on particle damper |
| CN111005974A (en) * | 2019-02-28 | 2020-04-14 | 厦门嘉达声学技术有限公司 | Vibration isolation pedestal of pressure stabilizing pump set |
| CN113106789A (en) * | 2021-03-09 | 2021-07-13 | 厦门大学 | Vibration reduction method based on particle damping and vibration reduction sleeper |
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| JP2002227101A (en) * | 2001-02-06 | 2002-08-14 | Odakyu Dentetsu Kk | Sleeper-integrated concrete ballast structure for railway line |
| KR20150044184A (en) * | 2013-10-16 | 2015-04-24 | 우송대학교 산학협력단 | Method of Gravel ballast Fence recycling Pre-Stress Concrete Sleeper |
| CN105239692A (en) * | 2015-10-26 | 2016-01-13 | 同济大学 | Non-linear rail type particle damper |
| CN106012708A (en) * | 2016-06-22 | 2016-10-12 | 株洲时代新材料科技股份有限公司 | Vibration reducing particles, mixed rail transportation foundation soil and vibration reducing method for rail transportation foundation |
| CN207017080U (en) * | 2017-08-03 | 2018-02-16 | 华东交通大学 | A kind of piston type particle damping energy dissipation vibration damping railway ballast |
-
2017
- 2017-08-03 CN CN201710655759.7A patent/CN107503246B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002227101A (en) * | 2001-02-06 | 2002-08-14 | Odakyu Dentetsu Kk | Sleeper-integrated concrete ballast structure for railway line |
| KR20150044184A (en) * | 2013-10-16 | 2015-04-24 | 우송대학교 산학협력단 | Method of Gravel ballast Fence recycling Pre-Stress Concrete Sleeper |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108409231A (en) * | 2018-03-12 | 2018-08-17 | 武汉理工大学 | The high spin system material of built-in empty bead based on particle damping principle |
| CN111005974A (en) * | 2019-02-28 | 2020-04-14 | 厦门嘉达声学技术有限公司 | Vibration isolation pedestal of pressure stabilizing pump set |
| CN110337214A (en) * | 2019-05-09 | 2019-10-15 | 厦门大学 | Oscillation damping method, electronic equipment and printed circuit board based on particle damper |
| CN113106789A (en) * | 2021-03-09 | 2021-07-13 | 厦门大学 | Vibration reduction method based on particle damping and vibration reduction sleeper |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107503246B (en) | 2024-04-02 |
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Inventor after: Feng Qingsong Inventor after: Li Wenbin Inventor after: Zhang Ling Inventor after: Luo Gun Inventor after: Lei Xiaoyan Inventor before: Feng Qingsong Inventor before: Li Wenbin Inventor before: Luo Gun Inventor before: Lei Xiaoyan |
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