CN109190249A - A kind of analysis method of Rubber Seal Strip for Automobile sound insulation - Google Patents
A kind of analysis method of Rubber Seal Strip for Automobile sound insulation Download PDFInfo
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- CN109190249A CN109190249A CN201811020889.4A CN201811020889A CN109190249A CN 109190249 A CN109190249 A CN 109190249A CN 201811020889 A CN201811020889 A CN 201811020889A CN 109190249 A CN109190249 A CN 109190249A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
- G06F30/23—Design optimisation, verification or simulation using finite element methods [FEM] or finite difference methods [FDM]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
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Abstract
The invention discloses a kind of analysis method of Rubber Seal Strip for Automobile sound insulation, include the following steps: the three-dimensional structure data model that sealing strip 1) is constructed by CAE software；2) the three-dimensional structure data model of sealing strip is imported into Marc software, and simulates the installation environment of sealing strip in Marc software；3) Deformation Characteristics Analysis of the item in installation ring is sealed by Marc software, the distressed structure after obtaining sealing strip installation；4) the acoustic analysis model of sealing strip distressed structure is established in Actran software；5) acoustic excitation is received by incidence end of sealing strip side corresponding with vehicle door external, signal is detected with side corresponding inside car door as transmission end using sealing strip, sealing strip internal cavity structures use acoustics finite element modeling air, use acoustics infinite element modeled air inside sealing strip car door；6) boundary condition is set referring to the installation environment of sealing strip；7) frequency domain simple harmonic quantity is carried out by Actran software and sealing strip acoustics transmitting loss curve is calculated.Its sound insulation effect can be analyzed and evaluated in rubber weather strip structured design phase.
Description
Technical field
The present invention relates to a kind of detection method of Rubber Seal Strip for Automobile, more particularly, to a kind of Rubber Seal Strip for Automobile every
The analysis method of sound.
Background technique
Be mounted on automobile door and window rubber weather strip can guarantee it is close between the structural member of glass pane, car door and vehicle
Envelope allows to prevent that such as rainwater, dust, wind environment influence to enter vehicle interior.There are also one for automobile door and window rubber weather strip
A effect is exactly sealing sound insulation, the automobile especially run at high speed, the increase of compartment internal and external pressure difference, the periodical air-flow point of appearance
From generation airborne noise.And airborne noise is transmitted to interior by rubber weather strip, will lead to the evil of interior acoustic environment
Change.
Currently, the sound insulation problem of rubber weather strip is mainly analyzed and evaluated by experimental method, that is, rubber is close
The size of internal car noise is measured after strip of paper used for sealing assembly to evaluate its sound insulation effect.It is how right but in the gasket structure design phase
The sound insulation problem of sealing strip is evaluated.In view of this, designer of the present invention is directed to foregoing problems further investigated, and by for many years
It is engaged in research and development and the manufacturing experience of related industry, by studying for a long period of time and developing, successfully develops " a kind of automobile rubber of the invention
The analysis method of glue sealing strip sound insulation ", to improve problem of the prior art.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of analysis method of Rubber Seal Strip for Automobile sound insulation, Neng Gou
Its sound insulation effect is analyzed and evaluated in rubber weather strip structured design phase, to greatly reduce the week of sealing strip design
Phase avoids the waste of unnecessary manpower and material resources.
The technical scheme of the invention to solve the technical problem is: a kind of analysis of Rubber Seal Strip for Automobile sound insulation
Method includes the following steps:
1) the three-dimensional structure data model of sealing strip is constructed by CAE software；
2) the three-dimensional structure data model of sealing strip is imported into Marc software, and simulates the mounting ring of sealing strip in Marc software
Border；
3) Deformation Characteristics Analysis of the item in installation ring is sealed by Marc software, the deformation after obtaining sealing strip installation
Structure；
4) the acoustic analysis model of sealing strip distressed structure is established in Actran software；
5) in acoustic analysis model, acoustic excitation is received by incidence end of sealing strip side corresponding with vehicle door external, with close
Strip of paper used for sealing is that transmission end detects signal with side corresponding inside car door, and sealing strip internal cavity structures use acoustics finite element modeling
Air, sealing strip car door inside use acoustics infinite element modeled air；
6) in acoustic analysis model, boundary condition is set referring to the installation environment of sealing strip；
7) frequency domain simple harmonic quantity is carried out by Actran software and sealing strip acoustics transmitting loss curve is calculated.
The further preferred embodiment of the present invention: analytical procedure 7) obtained in acoustics transmitting loss curve, acoustics transmitting damage
It loses in 30dB to the sound insulation effect requirement for reaching sealing strip between 60dB.
The further preferred embodiment of the present invention: synchronous setting incidence end measuring point one and incidence end measuring point two in step 5),
The incidence end measuring point one, incidence end measuring point two are respectively positioned on the incidence surface of incidence end.
The further preferred embodiment of the present invention: being arranged transmission end measuring point one and transmission end measuring point two in step 5), described
Projection end measuring point one, projection end measuring point two is located in projection end and close sealing strip.
The further preferred embodiment of the present invention: the installation position that sealing strip and metal plate are arranged in step 6) uses laterally about
Beam and longitudinal restraint.
Compared with the prior art, the advantages of the present invention are as follows not needing to produce and process out finished product sealing strip, and it is carried out
The soundproof effect of sealing strip is detected after assembly.But desired sealing strip three-dimensional structure data model is established by CAE software.It is logical
The Deformation Characteristics Analysis that Marc software is sealed item is crossed, obtains being mounted on the deformed shape after car door.Pass through Actran software
The calculating of frequency domain simple harmonic quantity is carried out, sound insulation effect analysis is carried out to deformed rubber weather strip.The present invention can be in rubber seal
Its sound insulation effect is analyzed and evaluated in structured design phase, to greatly reduce the period of sealing strip design, avoids
The waste of unnecessary manpower and material resources.
Detailed description of the invention
Fig. 1 is sealing strip original crustal stress figure；
Fig. 2 is that sealing strip is mounted on the deformation pattern after car door；
Fig. 3 is the schematic diagram of sealing strip Airplane side-wall；
Fig. 4 is sealing strip acoustics transmitting loss curve.
Specific embodiment
With reference to the accompanying drawing, the present invention is described in detail.
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not
For limiting the present invention.
As shown in Figures 1 to 4: a kind of analysis method of Rubber Seal Strip for Automobile sound insulation includes the following steps:
1) the three-dimensional structure data model of sealing strip is constructed by CAE software；
2) the three-dimensional structure data model of sealing strip is imported into Marc software, and simulates the mounting ring of sealing strip in Marc software
Border；
3) Deformation Characteristics Analysis of the item in installation ring is sealed by Marc software, the deformation after obtaining sealing strip installation
Structure；
4) the acoustic analysis model of sealing strip distressed structure is established in Actran software；
5) in acoustic analysis model, acoustic excitation is received by incidence end of sealing strip side corresponding with vehicle door external, with close
Strip of paper used for sealing is that transmission end detects signal with side corresponding inside car door, and sealing strip internal cavity structures use acoustics finite element modeling
Air, sealing strip car door inside use acoustics infinite element modeled air；
6) in acoustic analysis model, boundary condition is set referring to the installation environment of sealing strip；
7) frequency domain simple harmonic quantity is carried out by Actran software and sealing strip acoustics transmitting loss curve is calculated.
Analytical procedure 7) obtained in acoustics transmitting loss curve, acoustics transmitting loss is in 30dB to reaching close between 60dB
The sound insulation effect requirement of strip of paper used for sealing.
Synchronous setting incidence end measuring point one and incidence end measuring point two in step 5), the incidence end measuring point one, incidence
End measuring point two is respectively positioned on the incidence surface of incidence end.
Transmission end measuring point one and transmission end measuring point two are set in step 5), and the projection end measuring point one, projection end are surveyed
Point two is located in projection end and close to sealing strip.
The installation position that sealing strip and metal plate are arranged in step 6) uses lateral confinement and longitudinal restraint.
Now in conjunction with specific gasket structure, analytical procedure of the invention is illustrated.Firstly, being constructed by CAE software
The three-dimensional structure data model of sealing strip, structure are sealing strip original crustal stress figure as shown in Figure 1.The lower end of sealing strip is mounted on
On car door metal plate, the upper surface of sealing strip will be contacted with car door, be vehicle door external on the left of the sealing strip after installation, sealing strip
Right side is inside car door.The above-mentioned three-dimensional structure data model by sealing strip is imported into Marc software, and the mould in Marc software
The installation environment of quasi- sealing strip is sealed Deformation Characteristics Analysis of the item in installation ring by Marc software, obtains such as Fig. 2
Shown in sealing strip distressed structure.
The acoustic analysis model of sealing strip distressed structure is established in Actran software.It is as shown in Figure 3: be related to sealing strip 1,
Incidence end 2, incidence end measuring point 1, incidence end measuring point 24, sealing strip cavity 5, upper surface longitudinal restraint 6, in-vehicle air 7, thoroughly
Penetrate end 8, transmission end measuring point 1, transmission end measuring point 2 10, lower end surface longitudinal restraint 11, lower end surface lateral confinement 12.In acoustics point
It analyses in model, receives acoustic excitation on the left of sealing strip 2 for incidence end, be transmission end with the right side 8 of sealing strip.In incidence end 2
Incidence surface on incidence end measuring point 1 and incidence end measuring point 24 are set.In transmission end 8, transmission end measuring point 1 and transmission are set
Hold measuring point 2 10.Sealing strip internal cavities 5 use acoustics finite element modeling air, and (i.e. the right side 8 of sealing strip) is adopted inside car door
With acoustics infinite element modeled air.In acoustic analysis model, the upper surface of sealing strip uses longitudinal restraint 6, sealing strip lower end
Face middle section uses lateral confinement 12, and the two sides of sealing strip lower end surface use longitudinal restraint 11.
It is as shown in Figure 4: frequency domain simple harmonic quantity to be carried out by Actran software by Actran software, sealing strip sound is calculated
Learn transmitting loss curve.
The sound insulation effect of sealing strip can transmit loss with acoustics and indicate, obtain the acoustics transmitting of rubber weather strip by analyzing
In 30dB between 60dB, rubber weather strip has preferable sound insulation effect for loss.
This technical solution is by CAE software, Marc and Actran associative simulation simulated implementation.Since Marc software is state
The software of the generally acknowledged solution nonlinear problem in border, Actran software is famous acoustic software, covers acoustics, vibroacoustics, stream
The fields such as dynamic acoustics, therefore the analysis of rubber weather strip sound insulation property can be realized as in product conceptual design, improve
The design efficiency of product.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (5)
1. a kind of analysis method of Rubber Seal Strip for Automobile sound insulation, it is characterised in that include the following steps:
1) the three-dimensional structure data model of sealing strip is constructed by CAE software；
2) the three-dimensional structure data model of sealing strip is imported into Marc software, and simulates the mounting ring of sealing strip in Marc software
Border；
3) Deformation Characteristics Analysis of the item in installation ring is sealed by Marc software, the deformation after obtaining sealing strip installation
Structure；
4) the acoustic analysis model of sealing strip distressed structure is established in Actran software；
5) in acoustic analysis model, acoustic excitation is received by incidence end of sealing strip side corresponding with vehicle door external, with close
Strip of paper used for sealing is that transmission end detects signal with side corresponding inside car door, and sealing strip internal cavity structures use acoustics finite element modeling
Air, sealing strip car door inside use acoustics infinite element modeled air；
6) in acoustic analysis model, boundary condition is set referring to the installation environment of sealing strip；
7) frequency domain simple harmonic quantity is carried out by Actran software and sealing strip acoustics transmitting loss curve is calculated.
2. a kind of analysis method of Rubber Seal Strip for Automobile sound insulation according to claim 1, it is characterised in that analytical procedure
7) the transmitting loss curve of acoustics obtained in, acoustics transmitting loss are wanted in 30dB to the sound insulation effect for reaching sealing strip between 60dB
It asks.
3. a kind of analysis method of Rubber Seal Strip for Automobile sound insulation according to claim 1, it is characterised in that in step 5)
Middle synchronous setting incidence end measuring point one and incidence end measuring point two, the incidence end measuring point one, incidence end measuring point two be respectively positioned on into
It penetrates on the incidence surface at end.
4. a kind of analysis method of Rubber Seal Strip for Automobile sound insulation according to claim 1, it is characterised in that in step 5)
Middle setting transmission end measuring point one and transmission end measuring point two, the projection end measuring point one, projection end measuring point two are located in projection end
And close to sealing strip.
5. a kind of analysis method of Rubber Seal Strip for Automobile sound insulation according to claim 1, it is characterised in that in step 6)
The installation position of middle setting sealing strip and metal plate uses lateral confinement and longitudinal restraint.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811020889.4A CN109190249A (en) | 2018-09-03 | 2018-09-03 | A kind of analysis method of Rubber Seal Strip for Automobile sound insulation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811020889.4A CN109190249A (en) | 2018-09-03 | 2018-09-03 | A kind of analysis method of Rubber Seal Strip for Automobile sound insulation |
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| CN109190249A true CN109190249A (en) | 2019-01-11 |
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| CN201811020889.4A Pending CN109190249A (en) | 2018-09-03 | 2018-09-03 | A kind of analysis method of Rubber Seal Strip for Automobile sound insulation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116070482A (en) * | 2022-12-30 | 2023-05-05 | 佩尔哲汽车内饰系统(太仓)有限公司 | Super-structure front wall acoustic performance development method based on spring mass system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116070482A (en) * | 2022-12-30 | 2023-05-05 | 佩尔哲汽车内饰系统(太仓)有限公司 | Super-structure front wall acoustic performance development method based on spring mass system |
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Application publication date: 20190111 |
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