CN106585726A - Automobile skylight ceiling with opening and damping structure - Google Patents
Automobile skylight ceiling with opening and damping structure Download PDFInfo
- Publication number
- CN106585726A CN106585726A CN201610965820.3A CN201610965820A CN106585726A CN 106585726 A CN106585726 A CN 106585726A CN 201610965820 A CN201610965820 A CN 201610965820A CN 106585726 A CN106585726 A CN 106585726A
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- China
- Prior art keywords
- damping
- perforate
- ceiling
- damping structure
- reinforcing plate
- Prior art date
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- Pending
Links
- 238000013016 damping Methods 0.000 title claims abstract description 87
- 230000003014 reinforcing effect Effects 0.000 claims description 19
- 230000002787 reinforcement Effects 0.000 claims description 7
- 239000000463 material Substances 0.000 abstract description 10
- 230000005855 radiation Effects 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000009467 reduction Effects 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 230000000644 propagated effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 206010044565 Tremor Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/06—Fixed roofs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
- B60R13/08—Insulating elements, e.g. for sound insulation
- B60R13/0815—Acoustic or thermal insulation of passenger compartments
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
Abstract
The invention discloses an automobile skylight ceiling with an opening and damping structure. A ceiling is provided with the opening and damping structure comprising a damping layer body, on which multiple damping holes are arranged uniformly at intervals. The automobile skylight ceiling with the opening and damping structure has the following beneficial effects: by utilizing the damping structure with damping and opening, automobile vibration and noise radiation caused by the automobile skylight ceiling are well reduced and usage of damping material is reduced; drivers and passengers feel more comfortable; and an automobile body is low in weight.
Description
Technical field
The invention belongs to automobile technical field, more particularly, it relates to a kind of vehicle dormer window for being provided with perforate damping structure
Ceiling.
Background technology
Distinguished according to the approach that noise is transmitted in the car, solid propagation sound and air borne sound can be classified as.Wherein
Solid propagation sound Producing reason is mainly the tremor of each part of automobile causes the vibration of in-car thin-wall part so as to automotive interior
Radiated noise, and air borne sound mainly transmits noise by the gap between body structure and by plate.Air borne
Sound is generally concentrated at high band, and there is now very ripe method is reduced, such as by laying sound absorption and sound insulating material.And consolidate
Body propagation sound is concentrated mainly on low frequency, typically hardly results in control well.
Thin-wall part mainly includes door skin, car roof, engine caping, in front and back as the main building block of body of a motor car
Coaming plate, floor and trunk cover plate, are the main sources of automotive interior noise source.Monoblock damping, the party are pasted with traditional vehicle
Method damping noise reduction effect is not ideal, and damping material uses the light of the comfortableness and vehicle body for excessively having an effect on driver and crew
Quantify.
The content of the invention
Present invention aim to address the problem that prior art is present, there is provided a kind of simple structure, realize that comfortableness is good, car
The light-weighted vehicle dormer window ceiling for being provided with perforate damping structure of body, can be good at reducing the vehicle body that vehicle dormer window ceiling brings
Vibration and noise is radiated,.
To achieve these goals, the technical scheme taken of the present invention is：The vapour of this perforate damping structure for being provided
Car clearstory ceiling, ceiling is provided with perforate damping structure, and the perforate damping structure includes damping layer body, in the damping layer
Body is provided with the damping perforate of multiple uniform intervals arrangements.
To make above-mentioned technical proposal more detailed and concrete, the present invention also provides optimization technique side further below
Case, to obtain satisfied practical function：
The damping layer body and damping hole shape are rectangular configuration, and the damping perforate in the damping layer sheet
Interval is arranged in rows on body.
The front end for being located at headstock direction in the ceiling is provided with horizontal reinforcing plate, is close to the horizontal reinforcing plate and is provided with laterally
It is disposed with perforate damping structure.
Horizontal reinforcing plate is provided with ceiling rear end, laterally reinforcement also is provided with nearby end position in the middle part of the ceiling
Connect to form I-shaped reinforcement structure by longitudinally reinforced plate between the horizontal reinforcing plate of plate, the middle part and rear end.
Both sides positioned at I-shaped reinforcement structure on the ceiling are provided with the perforate damping structure.
The present invention compared with prior art, with advantages below：The present invention is provided with the vehicle dormer window top of perforate damping structure
Canopy, by using the damping structure with damping perforate, can be good at reducing the body vibrations that bring of vehicle dormer window ceiling with
Noise radiation and the use of damping material is reduced, enhance the comfortableness of driver and crew and the lightweight of vehicle body.
Description of the drawings
The content and the labelling in figure expressed by the accompanying drawing of this specification is briefly described below：
Fig. 1 is damping structure schematic diagram of the present invention；
Fig. 2 is vehicle dormer window ceiling structure schematic diagram of the present invention；
It is labeled as in figure：1st, damping layer body, 2, damping perforate, 3, ceiling, 4, horizontal reinforcing plate, 5, longitudinally reinforced plate.
Specific embodiment
Below against accompanying drawing, by the description to embodiment, further details of is made to the specific embodiment of the present invention
Explanation.
The present invention is provided with the vehicle dormer window ceiling of perforate damping structure, as shown in Figure 1, 2, perforate resistance is provided with ceiling 3
Buddhist nun's structure, perforate damping structure includes damping layer body 1, and the damping of multiple uniform intervals arrangements is provided with damping layer body 1
Perforate 2.
Perforate damping structure as shown in Figure 1, damping layer body 1 and damping perforate 2 are rectangular configuration, and damp perforate 2
It is spaced on damping layer body 1 and is arranged in rows, forms periodicity perforate.Based on damping vibration attenuation principle, and quote periodic boundary
Condition, suppresses the transmission of energy, can effectively lower the vibration and noise radiation of body structure.
The vehicle dormer window ceiling of plate damping structure of the present invention, as shown in Fig. 2 the front end for being located at headstock direction in ceiling 3 sets
There is horizontal reinforcing plate 4, be close to horizontal reinforcing plate 4 and be provided with lateral arrangement to have perforate damping structure.Ceiling front end arranges reinforcing plate can
It is relative to strengthen the structural strength of ceiling, while being close to horizontal reinforcing plate 4 is arranged at its perforate damping structure arranged in the same direction, can obtain
To preferably sound insulation and effect of vibration and noise reduction.
The present invention is provided with the vehicle dormer window ceiling of perforate damping structure, and in the rear end of ceiling 3 horizontal reinforcing plate 4 is provided with, on top
The middle part of canopy 3 also is provided between the horizontal reinforcing plate 4 of horizontal reinforcing plate 4, middle part and rear end by longitudinal direction at nearby end position
The connection of reinforcing plate 5 forms I-shaped reinforcement structure.Perforate resistance is provided with ceiling 3 positioned at the both sides of I-shaped reinforcement structure
Buddhist nun's structure.Structure as shown in Figure 2, transverse and longitudinal reinforcing plate structure can greatly promote the structural strength of vehicle dormer window ceiling, coordinate perforate
Damping structure rationally can effectively arrange that perforate damping structure obtains effect of vibration and noise reduction while structural strength is ensured.
Because sound is mainly outwards propagated in the form of plane wave, the structure for periodically opening up damping perforate 2 is with bullet
Property wavestrip gap structure, elastic wave cannot be normal through the weakening for causing energy simultaneously in the range of bandgap frequency.Periodically tie
The bandgap frequency scope of structure is changed with the structural parameters of primitive unit cell, the change of material parameter.Therefore this patent is considering resistance
On the basis of the frequency dependent characteristic of damping material, the modal loss factor of composite is first calculated with Finite Element Method, then will meter
The modal loss factor for calculating brings harmonic responding analysis into and solves composite construction in simple harmonic quantity power effect periodical perforate damping thin plate
Structural vibration Normal Displacement.Bringing Normal Displacement into acoustic software Virtual.lab as boundary condition again carries out acoustics calculating
Solve the acoustic radiation characteristic that perforate damps thin-slab structure.Due to periodically impact, elastic wave is propagated in perforate damping thin plate
When, damping material absorbs part acoustic energy, and can produce locally resonant in some frequency range open interior cavitys, and elastic wave is in hole
Can cancel out each other with incidence wave during transmitting and reach the effect of dissipation energy.By the percent opening of contrast optimization perforate damping structure
It was found that there is optimum percent opening in Sandwich Plates, while damping structure suppresses clearstory ceiling thin plate acoustic radiation under the percent opening
The size of damping structure is at utmost optimized again, reduces the use of damping material.
The present invention is provided with the vehicle dormer window ceiling of perforate damping structure, impedance bundary adopt cohere in surface of thin-walled parts or
The glutinous painting that full-filling has the damping material of specific physical, damping material sprays damping automatically from using mechanical hand.In damping
In spraying process, mechanical hand program is adjusted, spray out the perforate damping structure with periodicity perforate, spraying position in the present invention
Sprayed according to perforate damping structure distributing position of the present invention.
The present invention is provided with the vehicle dormer window ceiling of perforate damping structure, by using the damping structure with damping perforate,
Can be good at reducing the body vibrations that bring of vehicle dormer window ceiling with noise radiation and reduce the use of damping material, increase
The comfortableness of strong driver and crew and the lightweight of vehicle body, the perforate damping structure also can be applied other vehicle bodies in vehicle body
On thin-wall part, to lift the overall structure performance of car load.
The present invention is exemplarily described above in conjunction with accompanying drawing, but the present invention is not limited to aforesaid way, only
To adopt the improvement of the various unsubstantialities that the method for the present invention is conceived and technical scheme is carried out or directly apply to other occasions
, all fall within protection scope of the present invention.
Claims (5)
1. a kind of vehicle dormer window ceiling for being provided with perforate damping structure, it is characterised in that：Ceiling is provided with perforate damping structure, institute
Perforate damping structure is stated including damping layer body, the damping that multiple uniform intervals arrangements are provided with the damping layer body is opened
Hole.
2. according to the vehicle dormer window ceiling for being provided with perforate damping structure described in claim 1, its feature with：The damping layer
Body and damping hole shape are rectangular configuration, and the damping perforate is spaced on the damping layer body and is arranged in rows.
3. according to the vehicle dormer window ceiling for being provided with perforate damping structure described in claim 2, it is characterised in that：In the ceiling
Be provided with horizontal reinforcing plate positioned at the front end in headstock direction, be close to the horizontal reinforcing plate be provided with lateral arrangement have perforate damping knot
Structure.
4. according to the vehicle dormer window ceiling for being provided with perforate damping structure described in claim 3, it is characterised in that：In ceiling rear end
Horizontal reinforcing plate is provided with, horizontal reinforcing plate, the middle part and rear end also is provided with nearby end position in the middle part of the ceiling
Horizontal reinforcing plate between connect to form I-shaped reinforcement structure by longitudinally reinforced plate.
5. according to the vehicle dormer window ceiling for being provided with perforate damping structure described in claim 4, it is characterised in that：In the ceiling
The upper both sides positioned at I-shaped reinforcement structure are provided with the perforate damping structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610965820.3A CN106585726A (en) | 2016-10-28 | 2016-10-28 | Automobile skylight ceiling with opening and damping structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610965820.3A CN106585726A (en) | 2016-10-28 | 2016-10-28 | Automobile skylight ceiling with opening and damping structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106585726A true CN106585726A (en) | 2017-04-26 |
Family
ID=58590558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610965820.3A Pending CN106585726A (en) | 2016-10-28 | 2016-10-28 | Automobile skylight ceiling with opening and damping structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106585726A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4002367A (en) * | 1972-02-14 | 1977-01-11 | Owens-Corning Fiberglas Corporation | Insulation for a vehicle roof |
| DE4123593C2 (en) * | 1991-07-17 | 1995-03-09 | Daimler Benz Ag | Method for producing ceiling-side noise and heat insulation in a vehicle |
| EP1306205A1 (en) * | 2001-10-29 | 2003-05-02 | Johnson Controls GmbH | Covering element for the interior of a vehicle and method for fabricating the same |
| CN201333986Y (en) * | 2008-12-30 | 2009-10-28 | 上海通用汽车有限公司 | Automobile interior roof |
| CN102099850A (en) * | 2008-07-17 | 2011-06-15 | 丰田自动车株式会社 | Impact and sound absorbing material and sound absorbing structure |
| CN202935439U (en) * | 2012-11-28 | 2013-05-15 | 东风汽车公司 | Head cover beam vibration damper plate structure |
-
2016
- 2016-10-28 CN CN201610965820.3A patent/CN106585726A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4002367A (en) * | 1972-02-14 | 1977-01-11 | Owens-Corning Fiberglas Corporation | Insulation for a vehicle roof |
| DE4123593C2 (en) * | 1991-07-17 | 1995-03-09 | Daimler Benz Ag | Method for producing ceiling-side noise and heat insulation in a vehicle |
| EP1306205A1 (en) * | 2001-10-29 | 2003-05-02 | Johnson Controls GmbH | Covering element for the interior of a vehicle and method for fabricating the same |
| CN102099850A (en) * | 2008-07-17 | 2011-06-15 | 丰田自动车株式会社 | Impact and sound absorbing material and sound absorbing structure |
| CN201333986Y (en) * | 2008-12-30 | 2009-10-28 | 上海通用汽车有限公司 | Automobile interior roof |
| CN202935439U (en) * | 2012-11-28 | 2013-05-15 | 东风汽车公司 | Head cover beam vibration damper plate structure |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170426 |