CN201944177U - Vibration isolation base and transformer provided with same - Google Patents
Vibration isolation base and transformer provided with same Download PDFInfo
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- CN201944177U CN201944177U CN2010206930938U CN201020693093U CN201944177U CN 201944177 U CN201944177 U CN 201944177U CN 2010206930938 U CN2010206930938 U CN 2010206930938U CN 201020693093 U CN201020693093 U CN 201020693093U CN 201944177 U CN201944177 U CN 201944177U
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- vibration isolator
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- damping mount
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- 238000002955 isolation Methods 0.000 title claims abstract description 87
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 36
- 239000010959 steel Substances 0.000 claims abstract description 36
- 238000013016 damping Methods 0.000 claims description 56
- 229920001971 elastomer Polymers 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 11
- 230000008030 elimination Effects 0.000 abstract 1
- 238000003379 elimination reaction Methods 0.000 abstract 1
- 230000005284 excitation Effects 0.000 description 10
- 238000000034 method Methods 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- KVNRLNFWIYMESJ-UHFFFAOYSA-N butyronitrile Chemical compound CCCC#N KVNRLNFWIYMESJ-UHFFFAOYSA-N 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000003317 industrial substance Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model provides a vibration isolation base and a transformer provided with the same. The vibration isolation base comprises vibration isolators and vibration isolation cushions, wherein the vibration isolators are arranged layer by layer, are round table-shaped, and are internally provided with cavities; a first vibration isolation steel plate is arranged between adjacent layers of vibration isolators; the vibration isolation cushions are arranged layer by layer below the vibration isolators; and a second vibration isolation steel plate is arranged between adjacent layers of vibration isolation cushions. According to the transformer, the vibration isolation base is arranged at the lower end of the transformer. As the vibration isolation base comprises the vibration isolators arranged layer by layer and a plurality of vibration isolation cushions arranged layer by layer, and the first vibration isolation steel plates and the second vibration isolation steel plates are respectively connected with one another in series among the vibration isolators and the vibration isolation cushions, vibration waves can be reflected repeatedly in the vibration isolation base and absorbed for multiple times, and simultaneously, the resonance frequency of the vibration isolation base can be reduced greatly, therefore, the vibration isolation efficiency can be enhanced greatly and ideal effects of vibration reduction and noise elimination can be achieved.
Description
Technical field
The utility model relates to field transformer, more specifically, relates to a kind of vibro-damping mount and has the transformer of vibro-damping mount.
Background technique
The house power distribution transformer is in operation and can produces bigger alternating electromagnetic force, thereby makes the operational shock of transformer stronger, and the operational shock of transformer also makes floor, basis produce resonance except the vibration that causes transformer itself.Because the frequency of the vertical alternation excitation force of house power distribution transformer is the most complicated, comprise fundamental frequency 50Hz, the harmonics that also has its integral multiple, be 100Hz, 150Hz ..., and as long as transformer is in the operation working state, this excitation force is with regard to continual existence, thereby import upstairs room etc. into by ground, become the noise source of the serious permission noise figure that surpasses relevant national standard, polluted the living environment of resident family upstairs.The continual noise of this class with fixed frequency spectrum characteristic, being called has the accent noise, has the noise of accent to be different from other random noises (for example traffic noise), the worried degree that its worried degree causes much larger than other noises, therefore, the room owner is also strong unusually to this reflection.
Therefore transformer vibration isolation technology is more much bigger than the difficulty of other vibration equipment isolation technologies.
If be defined as oscillating body through after the vibration isolator vibration isolation with vibration transmissibility μ, the power on the ground of acting on acts on the ratio of the power on the ground during with no vibration isolator vibration isolation.Vibration isolation efficiency β=1-μ then, obviously transmissibility is more little, and vibration isolation efficiency is high more, is exactly the target that the vibration isolation engineering is pursued.For avoiding whole system under the excitation force effect, to produce resonance, reach and improve vibration isolation efficiency as far as possible, and obtain good vibration isolating effect, should make the resonant frequency f of system
0Be far smaller than the frequency f of excitation force, i.e. f/f
0＞＞1, certain f/f
0Be worth greatly more, the vibrating isolation system resonant frequency is more little, and the difficulty of design vibrating isolation system is also just big more.
Ratio f/f by various kinds of equipment vibration isolation efficiency β as shown in table 1 and transmissibility μ and excitation force frequency and system resonance frequency
0Numerical value require as seen, the vibration isolation of high residential building transformer requirement is more much higher than other equipment.
Table 1: the ratio of the vibration isolation efficiency of various kinds of equipment and vibration transmissibility and excitation force frequency and system resonance frequency
| Device type | Vibration transmissibility μ | Vibration isolation efficiency β | Frequency ratio (f/f 0) |
| Blower fan | 0.1 | 90％ | 3.5 |
| Pump | 0.1 | 90％ | 3.5 |
| Refrigerating machine | 0.15 | 85％ | 3.0 |
| Generator | 0.1 | 90％ | 3.5 |
| Cooling tower | 0.15～0.2 | 80％～85％ | 2.5～3 |
| Transformer | ＜0.01 | ＞99％ | 15 |
The required different vibration isolation efficiency of different building purposes as shown in table 2, the correlation technique parameter of vibration transmissibility and frequency ratio as seen, the vibration isolation of high residential building switchgear room transformer requires to reach the strictest vibration isolating effect.
Table 2: different building purposes required different vibration isolation efficiencies, vibration transmissibility and frequency ratio
| The place | Vibration transmissibility μ | Vibration isolation efficiency β | Frequency ratio (f/f 0) |
| Factory | 0.8 | 20％ | 1.5 |
| Office | 0.2～0.4 | 60～80％ | 2.5 |
| The hotel | 0.1～0.2 | 80～90％ | 3.5 |
| The tall building broadcasting studio | 0.01～0.05 | 95～99％ | 10 |
| The high residential building transformer | ＜0.005 | ＞99％ | 15 |
More than analyze as seen, the vibration of high residential building distribution transformer is strong, the frequency complexity, and its vibration isolation efficiency requires the highlyest, reaches＞99%, and this also is because tall building is more responsive and determine to the propagation of construct noise and sleep request.For this reason, the resonant frequency f/f of transformer excitation force frequency and vibrating isolation system
0Ratio reach 15 times of ability and realize that generally reach 5-10 doubly, very strict, just the natural frequency of vibrating isolation system should be on the extremely low level, low like this natural frequency is inaccessible for common vibration isolator.
In addition, the indoor spatial altitude of house power distribution is very limited, generally about 200mm, takes up an area of size about 1200 * 1200mm, and what have also wants little and short even.Therefore, the size of the vibration isolator of house power distribution transformer there is very strict requirement, has further increased the difficulty of vibration damping.
The vibro-damping mount of general device (as water pump, blower fan air-conditioning unit etc.) uses common vibration isolator or vibration isolator, selects satisfactory vibration isolator or vibration isolator according to suitable bearing capacity, thereby can reach satisfactory vibration isolating effect.Yet, because the vibration isolation efficiency of this class vibration isolation element if use, can't satisfy corresponding vibration isolation requirement 50% to 70% on the dwelling house transformer.The process test of many times is used and is measured, use after this class vibration isolation element, relevant upstairs resident family room noise can from 45 to 50 decibels drops to 35 to 40 decibels, but still can hear tangible buzz, far do not reach satisfied effect especially for the bedroom of having a rest or to the relatively more responsive resident family of the sound based on sleep.
In order to address the above problem, the general employing in the dwelling house transformer outside of prior art installed acoustic hood additional or at the switchgear room inwall metope that the dwelling house transformer is housed efficient sound absorption structure is installed.
Install acoustic hood additional in the dwelling house transformer outside, the air-borne sound that transformer in the acoustic hood produces can be completely cut off and not outwards propagation, thus the control transformer propagation of noise.Yet, can reduce the sonic propagation of transformer air though install acoustic hood additional in the dwelling house transformer outside, because the structure sonic propagation of residential housing structure transmission can't be eliminated, therefore the pollution of resident family's room noise upstairs can not get administering.Simultaneously, the dwelling house transformer outside installs additional after the acoustic hood, and case temperature will constantly rise, thereby will destroy the normal working environment of transformer, and transformer is damaged.
At the switchgear room inwall metope that the dwelling house transformer is housed efficient sound absorption structure is installed, the reverberation sound that can reduce transformer noise in the switchgear room pollutes.Yet, at switchgear room inwall metope efficient sound absorption structure is installed, pollute though can reduce the reverberation sound of transformer noise in the switchgear room, also can't eliminate by the building structure structure-borne sound transmission propagated of resident family upstairs, equally upstairs resident family's room noise pollutes and can not get administering.
The model utility content
The utility model aims to provide the good vibro-damping mount of a kind of vibration damping de-noising effect and has the transformer of vibro-damping mount.
According to an aspect of the present utility model, a kind of vibro-damping mount is provided, comprise the vibration isolator that layering is provided with, vibration isolator is frustoconic shape, and its inside has cavity, is provided with the first vibration isolation steel plate between every layer of vibration isolator; The vibration isolator that layering is provided with is arranged on the vibration isolator below, is provided with the second vibration isolation steel plate between every layer of vibration isolator.
Further, be provided with the 3rd vibration isolation steel plate between vibration isolator and the vibration isolator.
Further, be provided with highly different a plurality of granular projections on the upper surface of vibration isolator and the lower surface.
Further, granular projection is cylindrical, the diameter difference in the cross section of a plurality of granular projections.
Further, the thickness of the first vibration isolation steel plate is not equal to the thickness of the 3rd vibration isolation steel plate.
Further, the thickness difference of the second vibration isolation steel plate between each layer vibration isolator.
Further, vibro-damping mount also comprises base plate, and undermost vibration isolator is arranged on the upper end of base plate.
Further, vibro-damping mount also comprises panel, and panel is arranged on the upper end of the vibration isolator of the superiors.
Further, vibration isolator is a rubber vibration insulating pad.
According to another aspect of the present utility model, a kind of transformer is provided, have aforesaid vibro-damping mount, vibro-damping mount is arranged on the lower end of transformer.
By the research of vibration isolation technique as can be known, the natural resonance rate that only makes system just can obtain very high vibration isolation efficiency during well below the frequency of excitation force, and its important measures are the rigidity of adjusting vibrating isolation system.Adopt vibro-damping mount of the present utility model and have the transformer of vibro-damping mount, vibro-damping mount comprises the vibration isolator of layering setting and the vibration isolator that some layerings are provided with, and between vibration isolator and vibration isolator, be connected in series the first vibration isolation steel plate and the second vibration isolation steel plate respectively, so both can make vibration wave interreflection in vibro-damping mount, repeatedly obtain to absorb, simultaneously can also reduce the resonant frequency of vibro-damping mount significantly, thereby improve vibration isolation efficiency significantly, reach desirable vibration damping de-noising result.
Description of drawings
The accompanying drawing that constitutes the application's a part is used to provide further understanding of the present utility model, and illustrative examples of the present utility model and explanation thereof are used to explain the utility model, do not constitute improper qualification of the present utility model.In the accompanying drawings:
Fig. 1 is the structural representation of facing according to vibro-damping mount of the present utility model.
Embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the utility model in detail.
As shown in Figure 1, comprise the vibration isolator 10 that layering is provided with according to vibro-damping mount of the present utility model, vibration isolator 10 is frustoconic shape, and its inside has cavity, is provided with the first vibration isolation steel plate 22 between every layer of vibration isolator 10; The vibration isolator 30 that layering is provided with is arranged on vibration isolator 10 belows, is provided with the second vibration isolation steel plate 24 between every layer of vibration isolator 30.
By the research of vibration isolation technique as can be known, the natural resonance rate that only makes system just can obtain very high vibration isolation efficiency during well below the frequency of excitation force, and its important measures are the rigidity of adjusting vibrating isolation system.As shown in Figure 1, vibration isolator 10 is frustoconic shape, and its inside has the cavity of frustoconic shape, and its lower end has ring-shaped base.This vibration isolator 10 is the shearing type vibration isolator, and such vibration isolator is stressed after carrying to be shear direction, has the advantage that volume is little, material is economized, vibration isolating effect is good, stability is strong.Vibro-damping mount comprises the vibration isolator 10 of layering setting and the vibration isolator 30 that some layerings are provided with, and between vibration isolator 10 and vibration isolator 30, be connected in series the first vibration isolation steel plate 22 and the second vibration isolation steel plate 24 respectively, so both can make vibration wave interreflection in this system, repeatedly obtain to absorb, can also reduce simultaneously the resonant frequency of system significantly, thereby improve vibration isolation efficiency significantly, reach desirable vibration damping de-noising result.
Preferably, be provided with the 3rd vibration isolation steel plate 23 between vibration isolator 10 and the vibration isolator 30.The thickness of the first vibration isolation steel plate 22 is not equal to the thickness of the 3rd vibration isolation steel plate 23.The thickness difference of the second vibration isolation steel plate 24 between each layer vibration isolator 30.
As shown in Figure 1, the base of undermost vibration isolator 10 lower ends is by being bolted on the 3rd vibration isolation steel plate 23, and the 3rd vibration isolation steel plate 23 lower ends are provided with vibration isolator 30.The setting of the 3rd vibration isolation steel plate 23 helps connection stability between vibration isolator 10 and the vibration isolator 30, and makes and increased one deck isolation mounting in the whole vibro-damping mount, makes vibration wave reflection and absorb more abundant.In addition, the thickness of a plurality of second vibration isolation steel plates 24 between the vibration isolator 30 is different, can reduce the resonant frequency of system, improves vibration isolation efficiency significantly.The thickness of the first vibration isolation steel plate 22 between the vibration isolator 10 is not equal to the thickness of the 3rd vibration isolation steel plate 23, also can reduce the resonant frequency of system, improves vibration isolation efficiency.
As shown in Figure 1, vibro-damping mount also comprises base plate 25, and undermost vibration isolator 30 is arranged on the upper end of base plate 25.Vibro-damping mount also comprises panel 21, and panel 21 is arranged on the upper end of the vibration isolator 10 of the superiors.
In the present embodiment, the base plate 25 of vibro-damping mount is connected with undermost vibration isolator 30, panel 21 is fixedlyed connected with the vibration isolator 10 of the superiors by bolt, thereby makes base plate 25 and panel 21 be fixedly connected as the integral body that stability is strong with vibration isolator 30 and vibration isolator 10.When vibro-damping mount is installed, directly vibro-damping mount is placed on the transformer lower end, therefore can not influence user power utilization when mounted.Dispose four groups of vibro-damping mounts every transformer equipment lower end, the vibro-damping mount size is less, easy for installation, the external form neat appearance.According to an embodiment of the present utility model, the vibro-damping mount total height is controlled at below the 200mm, and horizontal dimension is controlled at about 550 * 550mm, for supporting with the transformer of different model brand, select the vibration isolator 10 of different model for use, to reach satisfied vibration isolating effect.
Preferably, be provided with highly different a plurality of granular projections on the upper surface of vibration isolator 30 and the lower surface.Granular projection is cylindrical, the diameter difference in the cross section of a plurality of granular projections.Vibration isolator 30 is a rubber vibration insulating pad.
The upper and lower surface of every layer of vibration isolator 30 all has the granular projection identical with vibration isolator 30 materials of cross-over configuration, and according to an embodiment of the present utility model, granular projection is cylindrical, and height, the diameter of section of a plurality of granular projections are different.The setting of granular projection has increased the frictional resistance between vibration isolator 30 and the second vibration isolation steel plate 24, the 3rd vibration isolation steel plate 23 and the base plate 25, and the ability that makes vibro-damping mount bear the impact of tangential force strengthens, thereby has improved the stability of transformer greatly.In addition, be provided with the vibration isolator 30 of granular projection, its common offset plate of energy force rate that absorbs excitation force is big more than three times, has improved the vibration isolation efficiency of whole vibro-damping mount.According to another embodiment of the present utility model, the size of granular projection and shape are all inequality.
The Manufacturing material of vibration isolator 30 comprises: industrial chemicals such as natural rubber, butyronitrile, neoprene, butyl, possess every performances such as oil resistance, ageing resistance and tension stress, and this vibration isolator 30 can use more than 20 years.In addition, these vibration isolator 30 qualities are even, improved the anti-vibration performance of vibro-damping mount.
The utility model also provides a kind of transformer, has aforesaid vibro-damping mount, and vibro-damping mount is arranged on the lower end of transformer.
Because various brands, the distribution transformer weight of model, structure, mounting type, installation dimension are all inequality, the total height of vibro-damping mount of the present utility model is controlled at below the 200mm, horizontal dimension is controlled at about 550 * 550mm, form by the vibration isolator of different model respectively, so that and the transformer of different model brand is supporting, reaches satisfied vibration isolating effect.
As can be seen from the above description, the utility model the above embodiments have realized following technique effect:
Vibro-damping mount of the present utility model and have the transformer of vibro-damping mount, vibro-damping mount comprises the vibration isolator of layering setting and the vibration isolator that some layerings are provided with, and between vibration isolator and vibration isolator, be connected in series the first vibration isolation steel plate and the second vibration isolation steel plate respectively, vibration wave is interreflection in vibro-damping mount, repeatedly obtains to absorb; In addition, the resonant frequency of vibro-damping mount significantly reduces, and has improved the vibration isolation efficiency of vibro-damping mount significantly.
Be preferred embodiment of the present utility model only below, be not limited to the utility model, for a person skilled in the art, the utility model can have various changes and variation.All within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (10)
1. a vibro-damping mount is characterized in that, comprising:
The vibration isolator (10) that layering is provided with, described vibration isolator (10) is frustoconic shape, and its inside has cavity, is provided with the first vibration isolation steel plate (22) between every layer of described vibration isolator (10);
The vibration isolator (30) that layering is provided with is arranged on described vibration isolator (10) below, is provided with the second vibration isolation steel plate (24) between every layer of described vibration isolator (30).
2. vibro-damping mount according to claim 1 is characterized in that, is provided with the 3rd vibration isolation steel plate (23) between described vibration isolator (10) and the described vibration isolator (30).
3. vibro-damping mount according to claim 2 is characterized in that, is provided with highly different a plurality of granular projections on the upper surface of described vibration isolator (30) and the lower surface.
4. vibro-damping mount according to claim 3 is characterized in that, described granular projection is cylindrical, the diameter difference in the cross section of a plurality of described granular projections.
5. vibro-damping mount according to claim 2 is characterized in that, the thickness of the described first vibration isolation steel plate (22) is not equal to the thickness of described the 3rd vibration isolation steel plate (23).
6. vibro-damping mount according to claim 1 is characterized in that, the thickness difference of the described second vibration isolation steel plate (24) between the described vibration isolator of each layer (30).
7. according to each described vibro-damping mount in the claim 1 to 6, it is characterized in that also comprise base plate (25), undermost described vibration isolator (30) is arranged on the upper end of described base plate (25).
8. according to each described vibro-damping mount in the claim 1 to 6, it is characterized in that, also comprise panel (21), described panel (21) is arranged on the upper end of the described vibration isolator (10) of the superiors.
9. according to each described vibro-damping mount in the claim 1 to 6, it is characterized in that described vibration isolator (30) is a rubber vibration insulating pad.
10. a transformer is characterized in that, has each described vibro-damping mount in the claim 1 to 9, and described vibro-damping mount is arranged on the lower end of described transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206930938U CN201944177U (en) | 2010-12-30 | 2010-12-30 | Vibration isolation base and transformer provided with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206930938U CN201944177U (en) | 2010-12-30 | 2010-12-30 | Vibration isolation base and transformer provided with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201944177U true CN201944177U (en) | 2011-08-24 |
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ID=44471520
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206930938U Expired - Lifetime CN201944177U (en) | 2010-12-30 | 2010-12-30 | Vibration isolation base and transformer provided with same |
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| CN (1) | CN201944177U (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014101481A1 (en) * | 2012-12-25 | 2014-07-03 | 国家电网公司 | Method for controlling structural acoustic transmission on basis of combined-type vibration isolation device |
| CN104141721A (en) * | 2014-08-01 | 2014-11-12 | 哈尔滨工业大学 | Modular local resonance type photonic crystal vibration isolation pad |
| CN104565717A (en) * | 2014-12-25 | 2015-04-29 | 贵州黔程天力智能科技有限公司 | Receiver vibration attenuation supporting seat |
| CN104595650A (en) * | 2014-12-25 | 2015-05-06 | 贵州黔程天力智能科技有限公司 | Receiver supporting base |
| CN106567900A (en) * | 2016-11-01 | 2017-04-19 | 中国船舶重工集团公司第七〇九研究所 | Metamaterial vibration isolator |
| CN106601453A (en) * | 2017-01-22 | 2017-04-26 | 保定天威保变电气股份有限公司 | Transformer vibration damping device and using method thereof |
| CN108443399A (en) * | 2018-03-21 | 2018-08-24 | 北京舒文环保科技有限公司 | Noise reduction damping device |
| CN109578248A (en) * | 2019-01-18 | 2019-04-05 | 南通大通宝富风机有限公司 | A kind of seat structure of magnetic suspension vapor compressor |
| CN109681576A (en) * | 2019-01-15 | 2019-04-26 | 广东工业大学 | A kind of unmanned plane arrangement for deflecting for high frequency and low frequency damping |
| CN111210801A (en) * | 2020-02-25 | 2020-05-29 | 北京绿创声学工程股份有限公司 | Tonal noise compensation elimination method and system |
| CN113066463A (en) * | 2021-03-23 | 2021-07-02 | 国网河北省电力有限公司沧州供电分公司 | Sound absorption and insulation structure for controlling sound vibration of transformer oil tank, transformer oil tank and transformer |
-
2010
- 2010-12-30 CN CN2010206930938U patent/CN201944177U/en not_active Expired - Lifetime
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9534656B2 (en) | 2012-12-25 | 2017-01-03 | State Grid Corporation Of China (Sgcc) | Method for controlling structural acoustic transmission on basis of combined-type vibration isolation device |
| WO2014101481A1 (en) * | 2012-12-25 | 2014-07-03 | 国家电网公司 | Method for controlling structural acoustic transmission on basis of combined-type vibration isolation device |
| CN104141721A (en) * | 2014-08-01 | 2014-11-12 | 哈尔滨工业大学 | Modular local resonance type photonic crystal vibration isolation pad |
| CN104565717A (en) * | 2014-12-25 | 2015-04-29 | 贵州黔程天力智能科技有限公司 | Receiver vibration attenuation supporting seat |
| CN104595650A (en) * | 2014-12-25 | 2015-05-06 | 贵州黔程天力智能科技有限公司 | Receiver supporting base |
| CN106567900B (en) * | 2016-11-01 | 2018-11-20 | 中国船舶重工集团公司第七一九研究所 | Meta Materials vibration isolator |
| CN106567900A (en) * | 2016-11-01 | 2017-04-19 | 中国船舶重工集团公司第七〇九研究所 | Metamaterial vibration isolator |
| CN106601453A (en) * | 2017-01-22 | 2017-04-26 | 保定天威保变电气股份有限公司 | Transformer vibration damping device and using method thereof |
| CN108443399A (en) * | 2018-03-21 | 2018-08-24 | 北京舒文环保科技有限公司 | Noise reduction damping device |
| CN108443399B (en) * | 2018-03-21 | 2019-10-11 | 北京舒文环保科技有限公司 | Noise reduction damping device |
| CN109681576A (en) * | 2019-01-15 | 2019-04-26 | 广东工业大学 | A kind of unmanned plane arrangement for deflecting for high frequency and low frequency damping |
| CN109578248A (en) * | 2019-01-18 | 2019-04-05 | 南通大通宝富风机有限公司 | A kind of seat structure of magnetic suspension vapor compressor |
| CN111210801A (en) * | 2020-02-25 | 2020-05-29 | 北京绿创声学工程股份有限公司 | Tonal noise compensation elimination method and system |
| CN111210801B (en) * | 2020-02-25 | 2022-08-02 | 北京绿创声学工程股份有限公司 | Tonal noise compensation elimination method and system |
| CN113066463A (en) * | 2021-03-23 | 2021-07-02 | 国网河北省电力有限公司沧州供电分公司 | Sound absorption and insulation structure for controlling sound vibration of transformer oil tank, transformer oil tank and transformer |
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