CN203627643U - Mechanical vibration isolation platform with periodic structure effect - Google Patents
Mechanical vibration isolation platform with periodic structure effect Download PDFInfo
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- CN203627643U CN203627643U CN201320865573.1U CN201320865573U CN203627643U CN 203627643 U CN203627643 U CN 203627643U CN 201320865573 U CN201320865573 U CN 201320865573U CN 203627643 U CN203627643 U CN 203627643U
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- 230000000737 periodic effect Effects 0.000 title claims abstract description 64
- 230000000694 effects Effects 0.000 title claims abstract description 35
- 238000002955 isolation Methods 0.000 title abstract description 25
- 238000013016 damping Methods 0.000 claims abstract description 60
- 239000000463 material Substances 0.000 claims abstract description 33
- 238000012856 packing Methods 0.000 claims abstract description 28
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 11
- 239000000956 alloy Substances 0.000 claims description 6
- 229910045601 alloy Inorganic materials 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims 1
- 238000001228 spectrum Methods 0.000 abstract description 14
- 230000005855 radiation Effects 0.000 abstract description 5
- 230000005540 biological transmission Effects 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
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- 239000006096 absorbing agent Substances 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
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- 238000011089 mechanical engineering Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
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- 230000035939 shock Effects 0.000 description 1
- 239000004636 vulcanized rubber Substances 0.000 description 1
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Abstract
The utility model relates to a mechanical vibration isolation platform with a periodic structure effect. The mechanical vibration isolation platform with the periodic structure effect comprises a common base (2), equipment (1), a ship body (16) and bases (4). The mechanical vibration isolation platform with the periodic structure effect is characterized in that the mechanical vibration isolation platform with the periodic structure effect further comprises periodic vibration isolators (3), wherein each periodic vibration isolator (3) is composed of two or more periodic units, each periodic unit comprises an upper layer mass element (5), a lower layer mass element (10), an upper layer elastic element (6) and a lower layer elastic element (11), each upper layer elastic element (6) comprises upper layer elastic element shells (9) and a C-shaped or <-shaped damping material packing layer (7), and each lower layer elastic element (11) comprises lower layer elastic element shells (13) and a C-shaped or <-shaped damping material packing layer (7). The mechanical vibration isolation platform with the periodic structure effect solves the problems that a traditional vibration isolating device is limited in low frequency line spectrum control capability, and underwater radiation low frequency line spectrums are prominent. Vibration of mechanical equipment, especially the transmission of low frequency disperse line spectrum vibration, can be damped, and thus radiation noise in water can be reduced remarkably.
Description
Technical field
The utility model relates to a kind of mechanical vibration-isolating platform, belongs to Ship Vibration noise control technique field.In particular, it is a kind of mechanical vibration-isolating platform with periodic structure effect.
Background technique
Main Noise Sources when mechanical vibration noise is marine low speed navigation, mechanical noise main component is the discrete line spectrum of low frequency, is the main component of current characteristics of ship underwater radiation noise.Tradition vibration isolation technique, as limited to the isolating power of line spectrum in linear vibration isolation techniques such as individual layer, bilayer and buoyant rafts, because system is distributed by a certain percentage to the isolation effect of each radio-frequency component, a certain line spectrum composition is not shown special preference to.And linear system has frequency retentivity, the energizing frequency that can not change system forms.The low frequency spectrum lines that equipment produces can be passed to pedestal along isolation mounting, after be passed to and in water, form underwater radiation noise.And, the vibration isolating effect of isolation mounting is mainly determined by low frequency spectrum lines, due to the limit value in weight and space, the intermediate mass of tradition isolation mounting should not be too large, so very limited to boats and ships medium and low frequency line spectrum control ability, cause characteristics of ship underwater radiation noise medium and low frequency line spectrum outstanding, be badly in need of a kind of novel vibration isolation technique and solve low frequency spectrum lines vibration problem.
In recent years, utilizing the filter characteristics of periodic structure to carry out vibration isolation is more novel vibration isolation technique.Zheng Ling (the comparative study of periodic structure and homogeneous structure vibration isolator filter characteristics, China Mechanical Engineering, 2008,19 (2): 146-149) studied the filter characteristics of the periodic structure that aluminium/rubber forms, because rubber in this structure is in compressive state, its quiet ratio of rigidity is larger, causes band gap initial frequency higher, is not suitable for low frequency vibration isolation.Szefi (Helicopter Gearbox Isolation Using Periodically Layered Fluidic Isolators, The Pennsylvania State University, 2003) utilize Metal/rubber layered periodic structure vibration isolator to carry out vibration isolation to the gear-box of helicopter, utilize built-in added fluid mass as dynamic vibration absorber, but band gap initial frequency is higher.Yellow slender (curved beam periodic structure vibration isolator characteristic research, vibration and impact, 2012,31 (5): 171-175) utilize rigid block and Curved Beam Structure to design periodic structure vibration isolator, advantage is not have creep and to temperature-insensitive, shortcoming is:
damping is less, can not suppress the resonance peak of vibration isolator self, may cause vibration isolating effect variation;
curved beam composition form simply causes the quiet rigidity of vibration isolator on the low side;
do not utilize impedance mismatching, band gap initial frequency is higher.Therefore, we are badly in need of according to periodic structure principle, and the periodic structure isolation mounting that incorporation engineering actual demand designs a kind of practicality solves low frequency spectrum lines vibration problem.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art part, and a kind of mechanical vibration-isolating platform with periodic structure effect is provided.It is a kind of periodic structure effect especially mechanical vibration-isolating platform of the discrete line spectrum of low frequency vibration of mechanical equipment vibration of decaying that utilizes.
The purpose of this utility model reaches by following measure: the mechanical vibration-isolating platform with periodic structure effect, it comprises public base, be positioned at the equipment on public base, hull, be fixed on the pedestal on hull, characterized by further comprising the periodicity vibration isolator that two ends are connected with pedestal with public base respectively, periodically vibration isolator is made up of more than 2 or 2 periodic units, described periodic unit comprises upper strata mass elements, lower floor's mass elements, upper strata elastic element and lower floor's elastic element, upper strata elastic element and lower floor's elastic element arrange in pairs, the two ends of upper strata elastic element are separately fixed at the below of upper strata mass elements and the top of lower floor's mass elements, the upper end of lower floor's elastic element is fixed on the below of lower floor's mass elements, described upper strata elastic element comprises more than 2 or 2 upper strata elastic element shells of being made up of high damping alloy and is filled in two C type or < type damping material packing courses between the elastic element shell of upper strata, lower floor's elastic element comprises more than 2 or 2 lower floor's elastic element shells of being made up of high damping alloy and is filled in C type or the < type damping material packing course between Liang Ge lower floor elastic element shell.
In technique scheme, on public base, be provided with 4 or 4 above periodicity vibration isolators.
In technique scheme, upper strata elastic element and lower floor's elastic element arrange one or more pairs of, and are arranged symmetrically with.
In technique scheme, in paired upper strata elastic element and paired lower floor's elastic element, be provided with improvement of damping element, improvement of damping element comprises the above floor of 2 or 2,2 parallel baffle plates and pectination damping material packing course, floor interval is arranged on two base plates and by base plate and is fixed on upper strata mass elements and lower floor's mass elements, floor can protrude between 2 baffle plates and form the coffin of sealing, and pectination damping material packing course is filled in the coffin of sealing.
In technique scheme, the two ends of upper strata elastic element respectively directly or be fixed on the below of upper strata mass elements and the top of lower floor's mass elements by base plate, directly or be fixed on the below of lower floor's mass elements by base plate, the other end of lower floor's elastic element is fixed on base plate for one end of lower floor's elastic element.
In technique scheme, the quality of upper strata mass elements and lower floor's mass elements rigidity unequal or upper strata elastic element and lower floor's elastic element is unequal.
In technique scheme, in each periodic unit, the attribute of upper strata mass elements, lower floor's mass elements, upper strata elastic element and lower floor's elastic element is three kinds of compound modes: upper strata elastic element and lower floor's elastic element rigid phase are same, and the quality of upper strata mass elements is greater than the quality of lower floor's mass elements; The quality of upper strata mass elements and lower floor's mass elements identical in quality, the rigidity of upper strata elastic element is greater than the rigidity of lower floor's elastic element; The quality of upper strata mass elements is greater than the quality of lower floor's mass elements, and the rigidity of upper strata elastic element is greater than the rigidity of lower floor's elastic element.
In technique scheme, upper strata elastic element shell and lower floor's elastic element shell are C type or < type.
In technique scheme, public base can be installed separate unit or multiple devices.
In technique scheme, the damping material of C type or < type damping material packing course and pectination damping material packing course is identical or different.
The advantage the utlity model has is as follows: the utility model is a kind of vibration-isolating platform that has mechanical filter characteristics that utilizes the filter characteristics design of periodic structure, the wherein composition of the upper strata mass elements of different attribute, lower floor's mass elements, upper strata elastic element and lower floor's elastic element in each periodic unit, form periodic structure, the pectination damping material packing course that upper strata elastic element and lower floor's elastic element are filled has strengthened vibrating isolation system damping.It utilize mechanical filtering and damping can decay mechanical equipment vibration especially the vibration of the discrete line spectrum of low frequency to the transmission of hull, thereby significantly reduce radiated noise in water, be particularly suitable for the vibration isolation of the main equipments such as boats and ships.Meanwhile, because cycle vibration isolator has high strength, high damping, the mechanical vibration-isolating platform with periodic structure effect also has good impact resistance.In addition, it can also constitute the isolation mounting such as double-layer vibration isolating, buoyant raft with other types vibration isolator.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of single periodic unit of the utility model embodiment 1.
Fig. 3 is the utility model embodiment 2 half period modular construction schematic diagram.
1. equipment in figure, 2. public base, 3. periodicity vibration isolator, 4. pedestal, 5. upper strata mass member, 6. upper strata elastic element, 7. C type or < type damping material packing course, 8. baffle plate, 9. upper strata elastic element shell, 10. lower floor's mass elements, 11. lower floor's elastic elements, 12. base plates, 13. lower floor's elastic element shells, 14. pectination damping material packing courses, 15. floors, 16. hulls.
Embodiment
Describe performance of the present utility model in detail below in conjunction with accompanying drawing, but it does not form to restriction of the present utility model, only do for example.By explanation, advantage of the present utility model will become more clear and easily understand simultaneously.
Embodiment 1, and in conjunction with Fig. 1 and Fig. 2, upper strata elastic element shell 9 and lower floor's elastic element shell 13 are C type.
Consult Fig. 1, Fig. 2 is known: the mechanical vibration-isolating platform with periodic structure effect, it comprises public base 2, be positioned at the equipment 1 on public base 2, hull 16, be fixed on the pedestal 4 on hull 16, characterized by further comprising the periodicity vibration isolator 3 that two ends are connected with pedestal 4 with public base 2 respectively, periodically vibration isolator 3 is made up of more than 2 or 2 periodic units, described periodic unit comprises upper strata mass elements 5, lower floor's mass elements 10, upper strata elastic element 6 and lower floor's elastic element 11, upper strata elastic element 6 and lower floor's elastic element 11 arrange in pairs, the two ends of upper strata elastic element 6 are separately fixed at the below of upper strata mass elements 5 and the top of lower floor's mass elements 10, the upper end of lower floor's elastic element 11 is fixed on the below of lower floor's mass elements 10, described upper strata elastic element 6 comprises more than 2 or 2 upper strata elastic element shells 9 of being made up of high damping alloy and is filled in two C type or < type damping material packing courses 7 between upper strata elastic element shell 9, lower floor's elastic element 11 comprises more than 2 or 2 lower floor's elastic element shells 13 of being made up of high damping alloy and is filled in C type or the < type damping material packing course 7 between Liang Ge lower floor elastic element shell 13.
The described mechanical vibration-isolating platform with periodic structure effect, is characterized in that being provided with on public base 24 or 4 above periodicity vibration isolators 3.Single cycle vibration isolator 3 is composed in series by more than 2 or 2 periodic unit, and the quantity of cycle vibration isolator 3 can be determined according to vibration-isolating platform load bearing requirements, guarantees that the rigidity of vibration-isolating platform meets vibration isolation and shock resistance requirement.Periodically the quantity of vibration isolator 3 determined vibration attenuation number.
The described mechanical vibration-isolating platform with periodic structure effect, is characterized in that upper strata elastic element 6 and lower floor's elastic element 11 arrange one or more pairs of, and is arranged symmetrically with.According to the situation of vibration and the demand of vibration isolation, different logarithms can be set, can consume the vibrational energy that vibration-isolating platform self and equipment 1 transmit.
The described mechanical vibration-isolating platform with periodic structure effect, it is characterized in that being provided with improvement of damping element in paired upper strata elastic element 6 and paired lower floor's elastic element 11, improvement of damping element comprises 2 or 2 above floors 15, 2 parallel baffle plates 8 and pectination damping material packing course 14, floor 15 intervals are arranged on two base plates 12 and by base plate 12 and are fixed on upper strata mass elements 5 and lower floor's mass elements 10, floor 15 can protrude between 2 baffle plates 8 and form the coffin of sealing, pectination damping material packing course 14 is filled in the coffin of sealing.The interior improvement of damping element in parallel of paired upper strata elastic element 6 and paired lower floor's elastic element 11, not only can vibrate the energy transmitting by consumer device 1, can also suppress the resonance peak that vibration-isolating platform self produces.
The described mechanical vibration-isolating platform with periodic structure effect, the two ends that it is characterized in that upper strata elastic element 6 respectively directly or be fixed on the below of upper strata mass elements 5 and the top of lower floor's mass elements 10 by base plate 12, directly or be fixed on the below of lower floor's mass elements 10 by base plate 12, the other end of lower floor's elastic element 11 is fixed on base plate 12 for one end of lower floor's elastic element 11.Upper strata elastic element 6 and lower floor's elastic element 11 directly or be connected on upper strata mass elements 5 and lower floor's mass elements 10 by base plate 12 bolts.
The described mechanical vibration-isolating platform with periodic structure effect, is characterized in that the quality rigidity unequal or upper strata elastic element 6 and lower floor's elastic element 11 of upper strata mass elements 5 and lower floor's mass elements 10 is unequal.Their relation on attributes has determined the initial frequency of bandwidth.
The described mechanical vibration-isolating platform with periodic structure effect, the attribute that it is characterized in that upper strata mass elements 5, lower floor's mass elements 10, upper strata elastic element 6 and lower floor's elastic element 11 in each periodic unit is three kinds of compound modes: upper strata elastic element 6 and lower floor's elastic element 11 rigid phases are same, and the quality of upper strata mass elements 5 is greater than the quality of lower floor's mass elements 10; The quality of upper strata mass elements 5 and lower floor's mass elements 10 identical in quality, the rigidity of upper strata elastic element 6 is greater than the rigidity of lower floor's elastic element 11; The quality of upper strata mass elements 5 is greater than the quality of lower floor's mass elements 10, and the rigidity of upper strata elastic element 6 is greater than the rigidity of lower floor's elastic element 11.Adopt the combination of different attribute can form mechanical impedance mismatch, multiple periodic units can transmit and carry out multiple reflections vibration, can design the vibration band gap of nominated bandwidth by the elaborate combination of two kinds of elements.
The described mechanical vibration-isolating platform with periodic structure effect, is characterized in that upper strata elastic element shell 9 and lower floor's elastic element shell 13 are C type or < type.These two kinds of shapes can guarantee that periodically vibration isolator 3 has higher vertical and lateral stiffness on the one hand, between them, can fill on the other hand C type or < type damping material packing course 7, form constrained damping structure, guarantee that periodically vibration isolator 3 has higher damping.
The described mechanical vibration-isolating platform with periodic structure effect, is characterized in that public base 2 can install separate unit or multiple devices 1.Public base 2 can adopt traditional flat placed type or tower structure, and it can install single device 1 or multiple devices 1.Simultaneously, by can design the vibration-isolating platform of high attenuation to upper strata mass elements 5, lower floor's mass elements 10, upper strata elastic element 6 and the quality of lower floor's elastic element 11 and the adjustment of physical dimension, can be applied to the vibration isolation of single device 1 or multiple devices 1.
The described mechanical vibration-isolating platform with periodic structure effect, is characterized in that the damping material of C type or < type damping material packing course 7 and pectination damping material packing course 14 is identical or different.The damping material of filling is other damping materials of vulcanized rubber, C type or < type damping material packing course 7 form constrained damping structure with upper strata elastic element shell 9 and lower floor's elastic element shell 13 respectively, pectination damping material packing course 14 has further strengthened damping, damping can consume the energy that vibration is transmitted on the one hand, and another side can also suppress the resonance peak that vibration isolator self produces.
The utility model working procedure is: when the vibration of equipment 1 certain frequency is passed to periodically first periodic unit of vibration isolator 3 by public base 2.The periodic unit at the middle and upper levels combination of the different attribute of mass elements 5, lower floor's mass elements 10, upper strata elastic element 6 and lower floor's elastic element 11 can form mechanical impedance mismatch.Upper strata elastic element shell 9, lower floor's elastic element shell 13 of upper strata elastic element 6 and lower floor's elastic element 11 and C type or the < type damping material packing course 7 of filling form constrained damping structure, guarantee that periodically vibration isolator 3 has higher damping.The improvement of damping element that floor 15, baffle plate 8 and pectination damping material packing course 14 form, is connected on upper strata mass elements 5 and lower floor's mass elements 10 by base plate 12 bolts, has further strengthened damping.The mechanical impedance mismatch feature that periodic unit has can make vibration reflection, damping can consume the vibrational energy that vibration-isolating platform self and equipment 1 transmit.Therefore, only have partial vibration can be passed to second period unit, same second period unit also can reflect vibration and consume the energy that vibration is transmitted simultaneously, and the vibration of second period unit reflection and the vibration of first periodic unit transmission are cancelled out each other.The like, multiple periodic units can transmit and carry out multiple reflections, consumption and counteracting vibration, finally only have considerably less vibration can be passed to pedestal 4, spread out of through body 16.
Other,, without the part describing in detail, is prior art.
Claims (10)
1. there is the mechanical vibration-isolating platform of periodic structure effect, it comprises public base (2), be positioned at the equipment (1) on public base (2), hull (16), be fixed on the pedestal (4) on hull (16), characterized by further comprising the periodicity vibration isolator (3) that two ends are connected with pedestal (4) with public base (2) respectively, periodically vibration isolator (3) is made up of more than 2 or 2 periodic units, described periodic unit comprises upper strata mass elements (5), lower floor's mass elements (10), upper strata elastic element (6) and lower floor's elastic element (11), upper strata elastic element (6) and lower floor's elastic element (11) arrange in pairs, the two ends of upper strata elastic element (6) are separately fixed at the below of upper strata mass elements (5) and the top of lower floor's mass elements (10), the upper end of lower floor's elastic element (11) is fixed on the below of lower floor's mass elements (10), described upper strata elastic element (6) comprises more than 2 or 2 upper strata elastic element shells (9) of being made up of high damping alloy and is filled in C type or the < type damping material packing course (7) between two upper strata elastic element shells (9), lower floor's elastic element (11) comprises more than 2 or 2 lower floor's elastic element shells (13) of being made up of high damping alloy and is filled in C type or the < type damping material packing course (7) between Liang Ge lower floor elastic element shell (13).
2. the mechanical vibration-isolating platform with periodic structure effect according to claim 1, is characterized in that being provided with on public base (2) 4 or 4 above periodicity vibration isolators (3).
3. the mechanical vibration-isolating platform with periodic structure effect according to claim 1, is characterized in that upper strata elastic element (6) and lower floor's elastic element (11) arrange one or more pairs of, and is arranged symmetrically with.
4. the mechanical vibration-isolating platform with periodic structure effect according to claim 3, it is characterized in that being provided with improvement of damping element in paired upper strata elastic element (6) and paired lower floor's elastic element (11), improvement of damping element comprises 2 or 2 above floors (15), 2 parallel baffle plates (8) and pectination damping material packing course (14), floor (15) interval is arranged in two base plates (12) and goes up and pass through base plate (12) and be fixed on upper strata mass elements (5) and lower floor's mass elements (10), floor (15) can protrude between 2 baffle plates (8) and form the coffin of sealing, pectination damping material packing course (14) is filled in the coffin of sealing.
5. the mechanical vibration-isolating platform with periodic structure effect according to claim 1, the two ends that it is characterized in that upper strata elastic element (6) are distinguished directly or are fixed on the below of upper strata mass elements (5) and the top of lower floor's mass elements (10) by base plate (12), directly or be fixed on the below of lower floor's mass elements (10) by base plate (12), the other end of lower floor's elastic element (11) is fixed on base plate (12) for one end of lower floor's elastic element (11).
6. the mechanical vibration-isolating platform with periodic structure effect according to claim 1, is characterized in that the quality rigidity unequal or upper strata elastic element (6) and lower floor's elastic element (11) of upper strata mass elements (5) and lower floor's mass elements (10) is unequal.
7. the mechanical vibration-isolating platform with periodic structure effect according to claim 1, the attribute that it is characterized in that upper strata mass elements (5), lower floor's mass elements (10), upper strata elastic element (6) and lower floor's elastic element (11) in each periodic unit is three kinds of compound modes: upper strata elastic element (6) and lower floor's elastic element (11) rigid phase are same, and the quality of upper strata mass elements (5) is greater than the quality of lower floor's mass elements (10); The quality of upper strata mass elements (5) and lower floor's mass elements (10) identical in quality, the rigidity of upper strata elastic element (6) is greater than the rigidity of lower floor's elastic element (11); The quality of upper strata mass elements (5) is greater than the quality of lower floor's mass elements (10), and the rigidity of upper strata elastic element (6) is greater than the rigidity of lower floor's elastic element (11).
8. the mechanical vibration-isolating platform with periodic structure effect according to claim 1, is characterized in that upper strata elastic element shell (9) and lower floor's elastic element shell (13) are C type or < type.
9. the mechanical vibration-isolating platform with periodic structure effect according to claim 1, is characterized in that public base (2) installation separate unit or multiple devices (1).
10. the mechanical vibration-isolating platform with periodic structure effect according to claim 1, is characterized in that the damping material of C type or < type damping material packing course (7) and pectination damping material packing course (14) is identical or different.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320865573.1U CN203627643U (en) | 2013-12-26 | 2013-12-26 | Mechanical vibration isolation platform with periodic structure effect |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320865573.1U CN203627643U (en) | 2013-12-26 | 2013-12-26 | Mechanical vibration isolation platform with periodic structure effect |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104792447A (en) * | 2014-11-26 | 2015-07-22 | 中国舰船研究设计中心 | Large ship vibration isolation device dynamic coupling multi-load identification method |
| CN105333058A (en) * | 2015-12-02 | 2016-02-17 | 华中科技大学 | Periodic cavity type vibration isolator with low frequency and broad-band gap and preparation method |
| CN113623346A (en) * | 2021-07-09 | 2021-11-09 | 北京科技大学 | Broadband vibration isolator with periodic structure |
-
2013
- 2013-12-26 CN CN201320865573.1U patent/CN203627643U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104792447A (en) * | 2014-11-26 | 2015-07-22 | 中国舰船研究设计中心 | Large ship vibration isolation device dynamic coupling multi-load identification method |
| CN104792447B (en) * | 2014-11-26 | 2017-10-13 | 中国舰船研究设计中心 | A kind of large ship isolation mounting Dynamic Coupling multi-load identification method |
| CN105333058A (en) * | 2015-12-02 | 2016-02-17 | 华中科技大学 | Periodic cavity type vibration isolator with low frequency and broad-band gap and preparation method |
| CN105333058B (en) * | 2015-12-02 | 2016-08-17 | 华中科技大学 | A kind of cycle cavity type broad band low frequency gap vibration isolator and preparation method |
| CN113623346A (en) * | 2021-07-09 | 2021-11-09 | 北京科技大学 | Broadband vibration isolator with periodic structure |
| CN113623346B (en) * | 2021-07-09 | 2022-04-22 | 北京科技大学 | Broadband vibration isolator with periodic structure |
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Granted publication date: 20140604 |