CN105458262A - Multi-layer noise elimination/vibration reduction structure and method for manufacturing noise elimination/vibration reduction structure through 3D printing technology - Google Patents
Multi-layer noise elimination/vibration reduction structure and method for manufacturing noise elimination/vibration reduction structure through 3D printing technology Download PDFInfo
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- CN105458262A CN105458262A CN201610069496.7A CN201610069496A CN105458262A CN 105458262 A CN105458262 A CN 105458262A CN 201610069496 A CN201610069496 A CN 201610069496A CN 105458262 A CN105458262 A CN 105458262A
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- noise elimination
- vibration
- vibration reduction
- longitudinal divider
- reduction structure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/11—Making porous workpieces or articles
- B22F3/1103—Making porous workpieces or articles with particular physical characteristics
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
- B22F7/08—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools with one or more parts not made from powder
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/02—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Materials Engineering (AREA)
- Laminated Bodies (AREA)
Abstract
The invention provides a multi-layer noise elimination/vibration reduction structure and a method for manufacturing the noise elimination/vibration reduction structure through the 3D printing technology, and relates to the field of material increase manufacture, vibration reduction and noise elimination. The multi-layer noise elimination/vibration reduction structure aims at solving the problem that a conventional noise elimination/vibration reduction structure material is narrow in application field. The noise elimination/vibration reduction structure is made from a metal base material. Except a base plate, micropores are formed in other components. Each layer of longitudinal partition plates are distributed between two side plates at equal intervals. Transverse partition plates are arranged between every two adjacent layers of longitudinal partition plates, and the height and width of a formed multi-layer cavity each change in a gradient mode. The method includes the steps of firstly, designing the size of the noise elimination/vibration reduction structure through computer simulation software according to actual working conditions; secondly, depositing molten powder on the surface of the base plate through the 3D printing technology, and printing the side plates, the longitudinal partition plates and the transverse partition plates. The noise elimination/vibration reduction structure is wide in application range and is formed at a time through 3D printing. The noise elimination/vibration reduction structure and the method are suitable for various fields of construction, navigation, aircrafts, power devices, transportation means and the like.
Description
Technical field
The invention belongs to and increase material manufacture and vibration-absorbing and silencing field.
Background technology
Along with industrial expansion, the demand of people to noise elimination/damping material is more and more higher, although noise elimination/vibration-proof structure material has a wide range of applications in modern society, the noise elimination/damping material of versatility is then rarely found.Wider noise elimination/the damping material of present application is that rubber is if butyl rubber, fibre are as tapetum fibrosum and foam metal etc., but existing silencing vibration-damping material uses limited in quite a few field, as poor in rubber-like material impact resistance, quick aging under adverse circumstances, loses the ability of noise elimination/vibration damping; Fiber-like noise elimination/damping material refractory ability difference and cannot use in the environment having water; Foam damping material is applied to noise elimination/vibration damping field and achieves significant progress, but is subject to the restriction of the strength of materials due to it and causes use limited to the limitation of mechanical wave frequency absorption.
Summary of the invention
The object of the invention is to solve the conventional problem that noise elimination/vibration-proof structure material suitable application area is narrow, a kind of multilayer noise elimination/vibration-proof structure being provided and adopting 3D printing technique to manufacture the method for this noise elimination/vibration-proof structure.
A kind of multilayer noise elimination/vibration-proof structure of the present invention comprises base plate (1), two side plates (2), the longitudinal divider (3) of multilayer differing heights and multiple transverse partition panel (4), described base plate (1), side plate (2), longitudinal divider (3) and transverse partition panel (4) are metal_based material, and side plate (2), longitudinal divider (3) and transverse partition panel (4) are provided with multiple micropore;
Two side plates (2) are positioned at the both sides of base plate (1);
Longitudinal divider (3) is parallel with side plate (2), every layer of longitudinal divider (3) is equidistantly distributed between two side plates (2), be transverse partition panel (4) between adjacent two layers longitudinal divider (3), form the cavity of multilayer differing heights, different in width, and the height of multi-layer cavity and width change all in gradient.
The method adopting 3D printing technique to manufacture above-mentioned noise elimination/vibration-proof structure is:
Step one, calculate the frequency of noise frequency and vibrations in actual condition, Computer Simulation Software is adopted to design size and the porosity in the upper hole of described multilayer noise elimination/vibration-proof structure latus inframedium (2), longitudinal divider (3) and transverse partition panel (4) according to actual condition, and the size of every layer of cavity;
Step 2, choose and need to increase the part of noise elimination/damping property as substrate, surface treatment is carried out to substrate and is fixed on the table;
Melted powder is deposited on substrate surface by step 3, employing 3D printing technique, control fusion penetration, form side plate (2) and longitudinal divider (3), then five axle workbench are rotated, longitudinal divider (3) is made to depart from gravity direction, manufacture transverse partition panel (4), when running into designed micropore, laser time-out, powder feeding suspend.
The present invention utilizes Helmholtz resonator principle to play noise elimination/vibration damping object, by the design of multilayer, people for producing multiple Helmholtz resonator, and reaches nested effect, by the energy of the mechanical waves such as the cutting down layer by layer of multilayer Helmholtz resonator, dissipation abating noises, vibration.Side plate uses porous design to reach the object strengthening noise elimination/effectiveness in vibration suppression.According to the actual condition of working site, draw up most suitable noise elimination/vibration-proof structure by computer mould, use 3D printing technique accurately to manufacture the structure of computer simulation, the porous multilayer gradient type Metal Substrate Amortization && Damping structural material of preparation the present invention design.
Noise elimination of the present invention/vibration-proof structure acoustic absorptivity is large, the graded of cavity size can increase the sound absorption frequency bandwidth of noise elimination/vibration-proof structure, can be applicable to multiple environment; Adopt metal material as substrate, this noise elimination/vibration-proof structure is possessed do not fear extreme misery, high temperature resistant, corrosion-resistant, cleanliness without any pollution, the impact of high velocity air can be born, not easily the plurality of advantages such as aging.All these features, make the present invention have broad application prospects in vibration damping/noise reduction, are applicable to building, navigation, aircraft and the multiple fields such as power set and means of transport.
Laser 3D printing technique is adopted to manufacture above-mentioned noise elimination/vibration-proof structure, effectively can realize the designability of material structure, can according to the structure of actual condition design noise elimination/damping material, and the absorption of broadband mechanical wave is realized by the design of different pore structures, one-shot forming, improves the scope of above-mentioned noise elimination/vibration-proof structure application.
Accompanying drawing explanation
Fig. 1 is the profile of a kind of multilayer noise elimination/vibration-proof structure of the present invention.
Detailed description of the invention
Detailed description of the invention one: composition graphs 1 illustrates present embodiment, a kind of multilayer noise elimination/vibration-proof structure described in present embodiment, comprise base plate (1), two side plates (2), the longitudinal divider (3) of multilayer differing heights and multiple transverse partition panel (4), described base plate (1), side plate (2), longitudinal divider (3) and transverse partition panel (4) are metal_based material, and side plate (2), longitudinal divider (3) and transverse partition panel (4) are provided with multiple micropore;
Two side plates (2) are positioned at the both sides of base plate (1);
Longitudinal divider (3) is parallel with side plate (2), every layer of longitudinal divider (3) is equidistantly distributed between two side plates (2), be transverse partition panel (4) between adjacent two layers longitudinal divider (3), form the cavity of multilayer differing heights, different in width, and the height of multi-layer cavity and width change all in gradient.
A kind of multilayer noise elimination/vibration-proof structure that present embodiment provides has sound absorption frequency feature wide, applied widely.By the science matched combined of longitudinal divider (3) and transverse partition panel (4), produce the noise elimination/damping material different operating mode being had to adaptability.Every layer of longitudinal divider (3) and transverse partition panel (4) define Helmholtz resonator with cavity, the nesting effect that collectively form Helmholtz resonator of multilayer longitudinal divider (3) and transverse partition panel (4) and multi-layer cavity, improves noise elimination/damping efficiency.When empty chamber air is subject to the disturbance of the mechanical wave such as noise, vibration, the air generation forced vibration in hole, the air in cavity forms air spring effect, plays the dissipation effect to mechanical wave energy, to reach the object of noise elimination/vibration damping.Side plate also adopts porous to design to strengthen noise elimination/effectiveness in vibration suppression, its structure is equivalent to using thin-walled as support, centre is equipped with a large amount of hole, effect is that solid metal and cavity are arranged in pairs or groups, and whole side plate is organized extremely uneven, when being subject to mechanical wave vibration, there occurs the hysteresis effect of strain facies for stress, define a good mechanical wave energy absorber portion, reach the effect that abating noises/vibration waits mechanical wave energy, serve the object of noise elimination/vibration damping.During fabrication, according to noise, the Vibration Condition of actual condition, adopt computer simulation, design the structure of applicable field working conditions, porous side plate and porous plate rapid shaping is made by 3D printing technique, high accuracy can copy the high efficiency the simulated noise elimination/vibration-proof structure of calculating, make vibration damping/soundproof effect reach best.
Detailed description of the invention two: composition graphs 1 illustrates present embodiment, present embodiment is the further restriction to a kind of multilayer noise elimination/vibration-proof structure described in embodiment one, and in present embodiment, the height of described multi-layer cavity successively decreases successively, width increases progressively successively.
Detailed description of the invention three: present embodiment is the further restriction to a kind of multilayer noise elimination/vibration-proof structure described in embodiment one and two, in present embodiment, micropore in side plate (2), longitudinal divider (3) and transverse partition panel (4) comprises circular hole and non-circular hole, the aperture of described circular hole is less than 1 or equal mm, and the single hole area of non-circular hole is less than or equal to 0.785mm
2, pitch of holes is less than or equal to 17mm, and porosity is 1%-10%.
Detailed description of the invention four: present embodiment is the further restriction to a kind of multilayer noise elimination/vibration-proof structure described in embodiment three, in present embodiment, the aperture of each layer longitudinal divider (3) is identical or different, and the porosity of each layer longitudinal divider (3) is identical or different.
Detailed description of the invention five: present embodiment is the further restriction to a kind of multilayer noise elimination/vibration-proof structure described in embodiment three, in present embodiment, the aperture of circular hole is 0.9mm, and pitch of holes is 5.4mm, and porosity is 1.6%.
Detailed description of the invention six: present embodiment is the method adopting 3D printing technique to manufacture a kind of multilayer noise elimination/vibration-proof structure described in embodiment one, and the method is:
Step one, calculate the frequency of noise frequency and vibrations in actual condition, Computer Simulation Software is adopted to design size and the porosity in the upper hole of described multilayer noise elimination/vibration-proof structure latus inframedium (2), longitudinal divider (3) and transverse partition panel (4) according to actual condition, and the size of every layer of cavity;
Step 2, choose and need to increase the part of noise elimination/damping property as substrate, surface treatment is carried out to substrate and is fixed on the table;
Melted powder is deposited on substrate surface by step 3, employing 3D printing technique, control fusion penetration, form side plate (2) and longitudinal divider (3), then five axle workbench are rotated, longitudinal divider (3) is made to depart from gravity direction, manufacture transverse partition panel (4), when running into designed micropore, laser time-out, powder feeding suspend.
Just the object forming micropunch can be reached because molten drop exists surface tension.
According to the frequency calculating noise and vibrations in actual condition, according to the feature of mechanical wave, Computer Simulation Software is adopted to design porous multilayer gradient type structure according to actual condition, and simulate noise elimination/effectiveness in vibration suppression, choose substrate and metal dust, substrate is fixed on five axle workbench, adopt laser 3D printing technique, melted powder is deposited on substrate surface by the mode of synchronous powder feeding system, control fusion penetration, form riser, rotate five axle workbench, make side plate (2) and longitudinal divider (3) and gravity direction at an angle, then transverse partition panel (4) is manufactured.When running into design micropore, laser suspends, powder feeding suspends, make molten drop rely on surface tension to form micropunch, finally produce the overall structure be made up of base plate (1), side plate (2), longitudinal divider (3) and transverse partition panel (4).
Detailed description of the invention seven: present embodiment is the further restriction to method described in embodiment six, in present embodiment, first adopts Computer Simulation Software to design 3 layers of cavity structure, aperture 0.9mm, pitch of holes 5.4mm, porosity 1.6%, vibration-absorbing and silencing is respond well.Choose the same material of actual parts as substrate, adopt acetone cleaning, sand paper polishing, ethanol purge, then dry for standby successively.Select-150 order ~+250 order Al alloy powders, use YLS3000 laser instrument, laser power 1500W ~ 3000W, spot diameter 1mm ~ 5mm, sweep speed 5mm/s ~ 15mm/s, powder feed rate is 5g/min ~ 15g/min.
Claims (6)
1. multilayer noise elimination/vibration-proof structure, it is characterized in that, this noise elimination/vibration-proof structure comprises base plate (1), two side plates (2), the longitudinal divider (3) of multilayer differing heights and multiple transverse partition panel (4), described base plate (1), side plate (2), longitudinal divider (3) and transverse partition panel (4) are metal_based material, and side plate (2), longitudinal divider (3) and transverse partition panel (4) are provided with multiple micropore;
Two side plates (2) are positioned at the both sides of base plate (1);
Longitudinal divider (3) is parallel with side plate (2), every layer of longitudinal divider (3) is equidistantly distributed between two side plates (2), be transverse partition panel (4) between adjacent two layers longitudinal divider (3), form the cavity of multilayer differing heights, different in width, and the height of multi-layer cavity and width change all in gradient.
2. a kind of multilayer noise elimination/vibration-proof structure according to claim 1, is characterized in that, the height of described multi-layer cavity successively decreases successively, width increases progressively successively.
3. a kind of multilayer noise elimination/vibration-proof structure according to claim 1 and 2, it is characterized in that, micropore in side plate (2), longitudinal divider (3) and transverse partition panel (4) comprises circular hole and non-circular hole, the aperture of described circular hole is less than 1 or equal mm, and the single hole area of non-circular hole is less than or equal to 0.785mm
2, pitch of holes is less than or equal to 17mm, and porosity is 1%-10%.
4. a kind of multilayer noise elimination/vibration-proof structure according to claim 3, is characterized in that, the aperture of each layer longitudinal divider (3) is identical or different, and the porosity of each layer longitudinal divider (3) is identical or different.
5. a kind of multilayer noise elimination/vibration-proof structure according to claim 3, is characterized in that, the aperture of circular hole is 0.9mm, and pitch of holes is 5.4mm, and porosity is 1.6%.
6. adopt the method for a kind of multilayer noise elimination/vibration-proof structure described in 3D printing technique manufacturing claims 1, it is characterized in that, the method is:
Step one, calculate the frequency of noise frequency and vibrations in actual condition, Computer Simulation Software is adopted to design size and the porosity in the upper hole of described multilayer noise elimination/vibration-proof structure latus inframedium (2), longitudinal divider (3) and transverse partition panel (4) according to actual condition, and the size of every layer of cavity;
Step 2, choose and need to increase the part of noise elimination/damping property as substrate, surface treatment is carried out to substrate and is fixed on the table;
Melted powder is deposited on substrate surface by step 3, employing 3D printing technique, control fusion penetration, form side plate (2) and longitudinal divider (3), then five axle workbench are rotated, longitudinal divider (3) is made to depart from gravity direction, manufacture transverse partition panel (4), when running into designed micropore, laser time-out, powder feeding suspend.
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Cited By (10)
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| CN107178510A (en) * | 2017-07-19 | 2017-09-19 | 重庆美的通用制冷设备有限公司 | Centrifugal compressor |
| CN107687489A (en) * | 2017-09-22 | 2018-02-13 | 北京天宜上佳新材料股份有限公司 | A kind of brake pad steel back with loose structure and the brake pad with it |
| CN107842120A (en) * | 2017-11-30 | 2018-03-27 | 江苏标榜装饰新材料股份有限公司 | A kind of sound arrester |
| CN108615520A (en) * | 2016-12-13 | 2018-10-02 | 航天特种材料及工艺技术研究所 | A kind of sound-absorbing material and preparation method thereof based on more hierarchical structures |
| CN109563789A (en) * | 2016-07-29 | 2019-04-02 | 赛峰集团 | Soundproof plate and its manufacturing method for turbine |
| CN110475842A (en) * | 2017-04-07 | 2019-11-19 | 索尼公司 | Refractory product and its manufacturing method |
| CN110838281A (en) * | 2019-10-11 | 2020-02-25 | 西安交通大学 | Multi-cavity sandwich type micro-perforated plate noise elimination structure |
| US10737478B2 (en) | 2017-02-24 | 2020-08-11 | Ford Global Technologies, Llc | Manufacture of vibration damping structures |
| CN112445073A (en) * | 2019-08-29 | 2021-03-05 | 上海微电子装备（集团）股份有限公司 | Noise protection device, protection system, photoetching machine and noise protection method |
| CN113414409A (en) * | 2021-06-21 | 2021-09-21 | 哈尔滨工程大学 | Material adding and reducing composite manufacturing method for gradient function vibration and noise reduction composite material |
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Cited By (15)
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| US11028774B2 (en) | 2016-07-29 | 2021-06-08 | Safran | Acoustic panel for a turbomachine and method for the manufacturing thereof |
| CN109563789A (en) * | 2016-07-29 | 2019-04-02 | 赛峰集团 | Soundproof plate and its manufacturing method for turbine |
| CN109563789B (en) * | 2016-07-29 | 2021-02-05 | 赛峰集团 | Acoustic panel for a turbomachine and method of manufacturing the same |
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| CN112445073A (en) * | 2019-08-29 | 2021-03-05 | 上海微电子装备（集团）股份有限公司 | Noise protection device, protection system, photoetching machine and noise protection method |
| CN112445073B (en) * | 2019-08-29 | 2022-09-02 | 上海微电子装备（集团）股份有限公司 | Noise protection device, protection system, photoetching machine and noise protection method |
| CN110838281A (en) * | 2019-10-11 | 2020-02-25 | 西安交通大学 | Multi-cavity sandwich type micro-perforated plate noise elimination structure |
| CN113414409A (en) * | 2021-06-21 | 2021-09-21 | 哈尔滨工程大学 | Material adding and reducing composite manufacturing method for gradient function vibration and noise reduction composite material |
| CN113414409B (en) * | 2021-06-21 | 2022-06-21 | 哈尔滨工程大学 | Material adding and reducing composite manufacturing method for gradient function vibration and noise reduction composite material |
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