CN106626612A - Vibration reduction paving plate with multilayer metal spongy structure and high transfer loss - Google Patents

Vibration reduction paving plate with multilayer metal spongy structure and high transfer loss Download PDF

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Publication number
CN106626612A
CN106626612A CN201611032981.3A CN201611032981A CN106626612A CN 106626612 A CN106626612 A CN 106626612A CN 201611032981 A CN201611032981 A CN 201611032981A CN 106626612 A CN106626612 A CN 106626612A
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CN
China
Prior art keywords
bed board
intermediate course
units
interlayer
paving plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201611032981.3A
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Chinese (zh)
Other versions
CN106626612B (en
Inventor
盛美萍
秦鹏
黄粒
秦琪
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Ningbo Yongyi Technology Co.,Ltd.
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Northwestern Polytechnical University
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Priority to CN201611032981.3A priority Critical patent/CN106626612B/en
Publication of CN106626612A publication Critical patent/CN106626612A/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/06—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of natural rubber or synthetic rubber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2266/00—Composition of foam
    • B32B2266/04—Inorganic
    • B32B2266/045—Metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/56—Damping, energy absorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/718—Weight, e.g. weight per square meter

Landscapes

  • Vibration Prevention Devices (AREA)

Abstract

The invention discloses a vibration reduction paving plate with multilayer metal spongy structure and high transfer loss. The vibration reduction paving plate with multilayer metal spongy structure and high transfer loss consists of three parts: an upper faceplate, a lower faceplate and a middle interlayer, wherein a plurality of rows of criss-cross reinforcing ribs are arranged at the inner surface of each of the upper faceplate and the lower faceplate; the faceplates form separated interval units through the transverse reinforcing ribs and the longitudinal reinforcing ribs. The middle interlayer unit comprises a plurality of layers of separated distribution middle layer units formed by foam metal layers and rubber layers; the corresponding interval units, separated by the reinforcing ribs, between the upper and lower layers of faceplates are filled with the middle interlayer units. The upper faceplate is not directly connected with the lower faceplate; the upper faceplate and the lower faceplate form a paving plate whole through being bonded by the middle interlayer units. The middle interlayer is separated into a plurality of interlayer units; gaps are formed between the interlayer units; the interlayer units are not connected. The designed paving plate has the characteristic of high structure damping; the structure vibration of the paving plate can be effectively reduced; the structure vibration transfer loss is increased; meanwhile, the structure weight of the paving plate can be reduced.

Description

Multiple layer metal sponge structure high transmission loss vibration damping bed board
Technical field
The invention belongs to vibration control field, and in particular to a kind of multiple layer metal sponge structure high transmission loss vibration damping paving Plate.
Background technology
Generally, cabin interior power-equipment is installed on bed board, and bed board is fixed on section structure again.Work as power-equipment During operation, power-equipment due to unstable and load excitation that produce can cause the vibration of bed board structure, vibrate further through Bed board is delivered on the housing of cabin, and cabin hull vibration simultaneously drives surrounding medium to produce acoustic radiation, this be cabin structure vibration and One of important sources of its radiated noise.
Bed board in engineering practice mostly is simple single layer structure or individual layer reinforced structure, also has patent to be related to grid interlayer The bed board structure of type.Traditional bed board has the relatively simple advantage of version, but these bed board generally existing dampings are less Limitation, it is impossible to efficiently the vibrational energy that bed board is transmitted is lost.Therefore, by the version of change bed board, fill Divide the impact to vibration transmission using impedance mismatching, the optimization bed board structure on the premise of structural strength is ensured increases bed board resistance Buddhist nun, vibration damping bed board of the design with high transmission loss performance so as to reduced by the design feature of itself and be delivered to housing Vibrational energy, for the vibration for reducing housing, the acoustic radiation for reducing housing have great importance.
The content of the invention
The invention aims to solve the problems, such as that prior art middle berth plate structural vibration transmission is larger, a kind of multilayer is proposed Metal sponge structure high transmission loss vibration damping bed board, makes bed board be inhibited to the vibration transmission of shell structure, reaches reduction paving Plate and hull vibration, the purpose for reducing housing acoustic radiation.
For achieving the above object, the present invention is adopted the following technical scheme that：
Multiple layer metal sponge structure high transmission loss vibration damping bed board is a kind of following bed board, is made up of three parts：Top panel, Lower panel, intermediate course.Wherein, the inner face of top panel and lower panel is respectively provided with multiple rows of crisscross reinforcement, laterally strengthens Muscle and waling make panel-shaped composition every interval unit.Top panel is identical with the reinforcement layout of lower panel, and the two Reinforcement face in face EDS maps.Intermediate course includes multilayer foam metal layer and rubber layer, foam metal layer and rubber layer phase Between be distributed, the layers of material of intermediate course is filled in top panel and lower panel is reinforced in the interval unit of muscle separation.Centre folder More than the total height of top panel and lower panel reinforcement, top panel is not joined directly together the thickness of layer with lower panel, the two by with Intermediate course Adhesion formation bed board entirety.Intermediate course is divided into multiple interlayer elements, there is space, non-phase between interlayer element Even.
Beneficial effect
Due to the application of above-mentioned technical proposal, the present invention has compared with prior art advantages below：
(1) intermediate course adds multilayer rubber material to effectively improve structural damping, by increasing the resistance of bed board structure Buddhist nun increases structural vibration transmission loss effectively reducing the structural vibration of bed board.
(2) intermediate course is divided into several disjunct junior units by the reinforcing rib structure of upper and lower panel, each interlayer list Space is left between unit, to rubber deformation space is left so that bed board effectiveness in vibration suppression is improved.
(3) the periodic structure form that intermediate course unit is formed with top panel, lower panel so that the machine of bed board in-plane Tool impedance operator is presented big mechanical impedance and the alternate periodic distribution rule of gadget impedance so that bed board vibration transmission is obtained Suppress.
(4) intermediate course employs foam metal material, and while structural strength is ensured bed board can be effectively reduced Construction weight.
Description of the drawings
Fig. 1 is the overall structure diagram of multiple layer metal sponge structure high transmission loss vibration damping bed board；
Fig. 2 is plate, lower panel schematic diagram above multiple layer metal sponge structure high transmission loss vibration damping bed board；
Fig. 3 is the interlayer element schematic cross-section of intermediate course；
Fig. 4 is mechanical impedance property schematic diagram in bed board face；
Fig. 5 is the space transmission attenuation simulation comparison figure of the specific embodiment of the invention and reinforcement steel bed board.
Specific embodiment
The present invention is further described below in conjunction with the accompanying drawings.
As shown in figure 1, bed board overall structure is made up of top panel 1, intermediate course 2, lower panel 3.Intermediate course 2 with above Plate 1, lower panel 3 are sticked together so that top panel 1, lower panel 3 and intermediate course 2 constitute a complete bed board structure.Respectively There is the space of at least one reinforcement width between individual interlayer element, these spaces leave space to the deformation of interlayer so that Interlayer can effectively be lost the vibrational energy of bed board.The height of intermediate course 2 is more than top panel and the height of lower panel reinforcement Degree summation so that top panel and lower panel are not joined directly together.
As shown in Fig. 2 top panel 1, lower panel 3 are inner faces there is the flat board of multiple rows of crisscross reinforcement, including substrate Plate 4, horizontal bar 5 and longitudinal rib 6.Horizontal bar 5 and longitudinal rib 6 are welded on substrate plate 4 or are rigidly connected by other processing technologys It is connected on substrate plate 4.In overall structure, top panel 1 is identical with the reinforcement layout of lower panel 3, and horizontal bar 5 and longitudinal rib 6 direction is both facing to bed board inner side.Horizontal bar 5 and longitudinal rib 6 are distributed on the same surface of substrate, and by substrate plate, 4 points is some Individual minizone.These reinforcements can not only improve the structural strength of upper and lower panel, it may have the installation for interlayer provides spacing Function.
As shown in figure 3, intermediate course 2 is the structure distributed alternately by multilayer rubber layer 7 and foam metal layer 8, this enforcement Intermediate course has three layers of rubber layer and two layers of foam metal level in example.The use of rubber so that structural damping increases, and improves The ability of structural damping vibrational energy；The use of foam metal so that structure total quality significantly declines.The each layer of intermediate course Between it is gluing or sulfuration by way of connect.Intermediate course is topmost and bottom is all rubber layer.
Fig. 4 gives the mechanical impedance distribution of bed board of the present invention and illustrates, and the intermediate course of separation is big mechanical impedance structure 9, other parts constitute gadget impedance structure 10, and the distribution form of this adjacent structure mechanical impedance mismatch can effectively press down The transmission of structural vibration processed.
In order to illustrate the superiority of embodiment of the present invention, Fig. 5 gives one embodiment of the present of invention and conventional reinforcement Space transmission attenuation simulation comparison of the steel bed board under 200Hz.
Wherein, the plate thickness of reinforcement steel bed board is 6mm, and reinforcement adopts 12# flat-bulb steels.
The parameter of multiple layer metal sponge structure high transmission loss vibration damping bed board is as follows：
Upper and lower panel：Length 3.1m, width 2m, thickness 2mm, material is aluminium alloy；
Reinforcement：Along its length the number of muscle is 9, and the number of width muscle is 6, the depth of section 4mm of reinforcement, Width 2mm, material is aluminium alloy；
Bed board interlayer：Metal sponge and rubber combined structure, wherein three layers of metal sponge two-layer, rubber, metal sponge is thick Degree 20mm, rubber thickness 3mm.
As seen from Figure 5：Bed board proposed by the present invention can preferably suppress vibration to ring compared to common reinforcement bed board Should be from excitation point outwards transmission.
It should be appreciated that the invention is not restricted to above-mentioned citing, above-described embodiment is simply to illustrate that the skill of the present invention Art is conceived and feature, its object is to allow person skilled in the art will appreciate that the present invention and be carried out, and can not limit Protection scope of the present invention processed, all improvement or conversion of work according to the above description, all should cover in protection scope of the present invention It is interior.

Claims (1)

1. a kind of multiple layer metal sponge structure high transmission loss vibration damping bed board, it is characterised in that：Multiple layer metal sponge structure is high to be passed Pass loss vibration damping bed board to be made up of three parts：Top panel, lower panel, intermediate course；Wherein, the inner face of top panel and lower panel is equal With multiple rows of crisscross reinforcement, cross reinforcing and waling make panel-shaped composition every interval unit；Above Plate is identical with the reinforcement layout of lower panel, and the reinforcement face of the two is in the face of EDS maps；Intermediate course includes multi-layered foamed gold Category layer and rubber layer, foam metal layer distributes alternately with rubber layer, and the layers of material of intermediate course is filled in top panel and following Plate is reinforced in the interval unit of muscle separation；The thickness of intermediate course is more than the total height of top panel and lower panel reinforcement, on Panel is not joined directly together with lower panel, the two by with intermediate course Adhesion formation bed board entirety；Intermediate course is divided into many Individual interlayer element, has space, is not attached between interlayer element.
CN201611032981.3A 2016-11-15 2016-11-15 Multiple layer metal sponge structure high transmission loss vibration damping bed board Active CN106626612B (en)

Priority Applications (1)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108119588A (en) * 2017-12-21 2018-06-05 西北工业大学 A kind of low frequency wideband vibration suppression structure based on binary cycle forbidden band characteristic
CN108309525A (en) * 2018-03-20 2018-07-24 南阳医学高等专科学校 A kind of cervical vertebra jacking device and production method with damping vibration attenuation function
CN114083839A (en) * 2021-12-03 2022-02-25 青岛理工大学 Sandwich structure with rubber inserted layer punches

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4441293A (en) * 1980-08-13 1984-04-10 Cape Boards & Panels Limited Construction panels
CN103274024A (en) * 2013-05-31 2013-09-04 江苏科技大学 Composite damping soundproof structure of ship compartment bulkhead
CN203402356U (en) * 2013-06-05 2014-01-22 福建新胜海船业有限公司 Novel independent wallboard for hull superstructure building
CN103625082A (en) * 2013-12-05 2014-03-12 安徽菲茵特电梯有限公司 Elevator car buffer made of foamed aluminium and manufacturing method thereof
CN104647823A (en) * 2013-11-25 2015-05-27 中国兵器工业第五二研究所 Shock-resistant energy-absorbing material and preparation method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4441293A (en) * 1980-08-13 1984-04-10 Cape Boards & Panels Limited Construction panels
CN103274024A (en) * 2013-05-31 2013-09-04 江苏科技大学 Composite damping soundproof structure of ship compartment bulkhead
CN203402356U (en) * 2013-06-05 2014-01-22 福建新胜海船业有限公司 Novel independent wallboard for hull superstructure building
CN104647823A (en) * 2013-11-25 2015-05-27 中国兵器工业第五二研究所 Shock-resistant energy-absorbing material and preparation method thereof
CN103625082A (en) * 2013-12-05 2014-03-12 安徽菲茵特电梯有限公司 Elevator car buffer made of foamed aluminium and manufacturing method thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108119588A (en) * 2017-12-21 2018-06-05 西北工业大学 A kind of low frequency wideband vibration suppression structure based on binary cycle forbidden band characteristic
CN108119588B (en) * 2017-12-21 2020-01-14 西北工业大学 Low-frequency broadband vibration suppression structure based on double-period forbidden band characteristic
CN108309525A (en) * 2018-03-20 2018-07-24 南阳医学高等专科学校 A kind of cervical vertebra jacking device and production method with damping vibration attenuation function
CN108309525B (en) * 2018-03-20 2020-03-20 南阳医学高等专科学校 Cervical vertebra jacking device with damping and vibration-reducing effects and manufacturing method
CN114083839A (en) * 2021-12-03 2022-02-25 青岛理工大学 Sandwich structure with rubber inserted layer punches

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Effective date of registration: 20220324

Address after: 315000 517, floor 5, building 8, Lane 218, Qingyi Road, Ningbo high tech Zone, Ningbo, Zhejiang Province

Patentee after: Ningbo Yongyi Technology Co.,Ltd.

Address before: Beilin District Shaanxi province Xi'an City friendship road 710072 No. 127

Patentee before: Northwestern Polytechnical University