CN113790900A - Vehicle sound insulation performance testing method and device and electronic equipment - Google Patents
Vehicle sound insulation performance testing method and device and electronic equipment Download PDFInfo
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- CN113790900A CN113790900A CN202110918427.XA CN202110918427A CN113790900A CN 113790900 A CN113790900 A CN 113790900A CN 202110918427 A CN202110918427 A CN 202110918427A CN 113790900 A CN113790900 A CN 113790900A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H17/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups
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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
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Abstract
The embodiment of the invention provides a method, a device and equipment for testing the sound insulation performance of a vehicle, wherein the vehicle to be tested is placed in a preset reverberation room, and a sound source is arranged in the reverberation room to provide sound required by the test; then covering a sound-insulating and sound-absorbing material in a sound-shielding area other than the target area to expose the target area in the sound source; then, collecting first sound data on one side of the target area and collecting second sound data on the other side of the target area; and finally, obtaining sound insulation performance data of the target area of the vehicle to be tested based on the first sound data and the second sound data. According to the invention, the sound insulation and absorption material is only required to be covered on the sound shielding area, and parts of the target area are not required to be taken down from the vehicle body, so that the condition of damaging the vehicle body is avoided, the sound insulation performance test is carried out by exposing the target area, a plurality of different tools are not required to be manufactured, the test period is shortened, and the cost in the test process is reduced.
Description
Technical Field
The invention relates to the technical field of sound insulation, in particular to a method and a device for testing the sound insulation performance of a vehicle and electronic equipment.
Background
When testing the sound insulation quantity of a certain system on the whole vehicle, the system is generally taken down from the vehicle body, placed on a reverberation-total damping sound insulation window, sounded through a sound source placed in a reverberation laboratory, the size of the sound source is tested, then the sound pressure level or sound intensity of a receiving end is tested in a total damping room, and the sound transmission loss of the system is obtained through calculation.
However, this method requires a complete reverberation and total anechoic chamber, and the test chambers need to be constructed adjacently and windows need to be provided on the wall in the middle. In the test, since the component to be tested needs to be removed from the vehicle body and mounted on the window, the vehicle body is damaged and cannot be restored. The part to be measured can be placed in the window of total elimination-reverberation only by being installed on a corresponding tool, the tool and the part to be measured are generally connected in the form of screw joint, welding, strong bonding and the like, and secondary damage can be caused when the tool is taken down.
In addition, the tool for clamping the part to be tested is disposable, and different clamping tools are required to be arranged on different parts to be tested, so that the period of the sound insulation performance of the existing test vehicle is long, and the test cost is high.
Disclosure of Invention
The embodiment of the invention provides a method and a device for testing the sound insulation performance of a vehicle and electronic equipment, and solves the technical problems of long period and high cost of vehicle sound insulation performance measurement in the related technology.
In a first aspect, the present invention provides a method for testing sound insulation performance of a vehicle, according to an embodiment of the present invention, the method including: placing a vehicle to be tested in a reverberation room, wherein a sound source is arranged in the reverberation room; covering a sound-insulating and sound-absorbing material in a sound-shielding area other than a target area to expose the target area in the sound source; collecting first sound data on one side of the target area and collecting second sound data on the other side of the target area; and obtaining sound insulation performance data of the target area of the vehicle to be tested based on the first sound data and the second sound data.
Preferably, before the sound shielding region except the target region is covered with the sound insulating and absorbing material, the method comprises the following steps: detecting the outline of the target area to obtain first outline data; detecting the profile of the vehicle to be detected to obtain second profile data; and determining the sound shielding area according to the first contour data and the second contour data.
Preferably, the first contour data comprises first geometric data of the target region and position data; the second contour data comprises second geometric data of the vehicle to be tested; determining the sound shielding area according to the first profile data and the second profile data, including: determining the sound masking region based on the difference between the first geometric data and the second geometric data and the position data.
Preferably, the obtaining of the sound insulation performance data of the target area of the vehicle to be tested based on the first sound data and the second sound data includes: obtaining sound insulation performance data of the target area of the vehicle to be tested based on the difference value between the first sound data and the second sound data; or obtaining sound insulation performance data of the target area of the vehicle to be tested based on the ratio of the first sound data to the second sound data.
Preferably, the acquiring first sound data of one side of the target area and acquiring second sound data of the other side of the target area includes: and acquiring the sound data outside the vehicle at one side of the target area and acquiring the sound data inside the vehicle at the other side of the target area.
In a second aspect, the present invention provides a vehicle sound insulation performance testing apparatus according to an embodiment of the present invention, the apparatus including:
the sound source is arranged in the reverberation chamber and used for providing sound required by the test;
the sound shielding tool is used for covering sound insulation and absorption materials in a sound shielding area except for a target area so as to expose the target area in the sound source;
the first microphone is arranged on one side of the target area and used for collecting first sound data;
the second microphone is arranged on the other side of the target area and used for acquiring second sound data;
and the sound processing equipment is used for obtaining sound insulation performance data of the target area of the vehicle to be tested based on the first sound data and the second sound data.
Preferably, the sound processing apparatus is specifically configured to: obtaining sound insulation performance data of the target area of the vehicle to be tested based on the difference value between the first sound data and the second sound data; or obtaining sound insulation performance data of the target area of the vehicle to be tested based on the ratio of the first sound data to the second sound data.
Preferably, the sound insulation and absorption material comprises: EVA plastics, lead plate, steel sheet, sound absorbing cotton and rubber.
In a third aspect, the present invention provides an electronic device, which includes a memory, a processor, and code stored in the memory and executable on the processor, where the processor implements any one of the implementation manners of the first aspect when executing the code.
In a fourth aspect, the present invention provides a computer-readable storage medium, on which a computer program is stored, which, when executed by a processor, implements any of the embodiments of the first aspect.
One or more technical solutions provided in the embodiments of the present invention have at least the following technical effects or advantages:
according to the invention, the vehicle to be tested is arranged in the preset reverberation room, and the reverberation room is provided with the sound source, so that the reverberation room can provide the sound required by the test; then covering a sound-insulating and sound-absorbing material in a sound-shielding area other than the target area to expose the target area in the sound source; then, collecting first sound data on one side of the target area and collecting second sound data on the other side of the target area; and finally, obtaining sound insulation performance data of the target area of the vehicle to be tested based on the first sound data and the second sound data. According to the invention, the sound insulation and absorption material is only required to be covered on the sound shielding area, and the part to be tested is not required to be taken down from the vehicle body, so that the condition of damaging the vehicle body is avoided, the sound insulation and absorption material is not required to be customized, the sound insulation performance test can be carried out only by exposing the target area, the test period is shortened, a plurality of tools are not required to be manufactured, and the cost in the test process is also reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
FIG. 1 is a flow chart of a method for testing sound insulation performance of a vehicle according to an embodiment of the invention;
FIG. 2 is a schematic diagram of a shielding tool structure according to an embodiment of the invention;
FIG. 3 is a schematic view of a shielding tool in one embodiment of the present invention;
FIG. 4 is a schematic view of a shielding tool in another embodiment according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of the structure of a sound insulation performance testing device for a vehicle according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of the structure of a sound insulation performance test apparatus for a vehicle according to an embodiment of the present invention;
fig. 7 is a schematic diagram of a structure of a computer-readable storage medium according to an embodiment of the present invention.
Detailed Description
The embodiment of the invention provides a method and a device for testing the sound insulation performance of a vehicle and electronic equipment, and solves the technical problems of long period and high cost of vehicle sound insulation performance measurement in the related technology.
In order to solve the technical problems, the embodiment of the invention provides the following general ideas:
firstly, a vehicle to be tested is placed in a preset reverberation room, and the reverberation room is provided with a sound source, so that the reverberation room can provide sound required by testing; then covering a sound-insulating and sound-absorbing material in a sound-shielding area other than the target area to expose the target area in the sound source; then, collecting first sound data on one side of the target area and collecting second sound data on the other side of the target area; and finally, obtaining sound insulation performance data of the target area of the vehicle to be tested based on the first sound data and the second sound data. According to the invention, the sound insulation and absorption material is only required to be covered on the sound shielding area, and the part to be tested is not required to be taken down from the vehicle body, so that the condition of damaging the vehicle body is avoided, the sound insulation and absorption material is not required to be customized, the sound insulation performance test can be carried out only by exposing the target area, the test period is shortened, a plurality of tools are not required to be manufactured, and the cost in the test process is also reduced.
In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.
First, it is stated that the term "and/or" appearing herein is merely one type of associative relationship that describes an associated object, meaning that three types of relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein.
In a first aspect, the present invention provides a method for testing a sound insulation performance of a vehicle according to an embodiment of the present invention, as shown in fig. 1, the method for testing a sound insulation performance of a vehicle includes the following steps:
step S101: and placing the vehicle to be tested in a reverberation room, wherein a sound source is arranged in the reverberation room.
Specifically, a vehicle to be tested can be placed in a reverberation chamber, and a sound source can be placed in the reverberation chamber, so that sound required by a vehicle sound insulation performance test can be provided in the reverberation chamber.
In the implementation process, the sound source may be a spherical sound source, or may be another object capable of emitting sound.
Step S102: the sound-shielding region other than the target region is covered with a sound-insulating and absorbing material to expose the target region in the sound source.
Specifically, a target area can be determined from the vehicle to be tested according to the requirement of the sound insulation performance test, and the target area is used as the object for testing the sound insulation performance.
In the specific implementation process, if the sound insulation performance of the vehicle window needs to be tested, the front side window glass, the rear side window glass, the front windshield glass, the rear windshield glass or the skylight glass of the vehicle can be determined as a target area, and the determined window glass is used as a test object; if the sound insulation performance of the vehicle door needs to be tested, a front vehicle door, a rear vehicle door or a trunk door of the vehicle can be determined as a target area, and the determined vehicle door is used as a test object.
Of course, the sound insulation performance test can also be performed on the a column, the B column or the C column of the vehicle, and the sound insulation performance test can also be performed on the engine compartment of the vehicle, that is, the target area can also include the a column, the B column, the C column, the engine compartment and the like of the vehicle.
Specifically, the contour of the target area may be detected to obtain first contour data, with respect to how to determine the sound masking area other than the target area; detecting the profile of the vehicle to be detected to obtain second profile data; and then determining a sound shielding area according to the first contour data and the second contour data.
In a specific implementation, after the target area is determined, a dimension measuring tool may be used to measure a profile of the target area to obtain first profile data, where the first profile data includes first geometric data and position data of the target area. Wherein the first geometric data at least characterize the area and shape of the target region and the position data at least characterize the position of the target region on the vehicle under test.
In a specific implementation process, the profile of the vehicle to be measured can be measured by using a dimension measuring tool to obtain second profile data, wherein the second profile data comprises second geometric data of the vehicle to be measured, and the second geometric data at least represents the whole vehicle area and the whole vehicle shape of the vehicle to be measured.
In a specific implementation process, the sound shielding region is determined according to the first profile data and the second profile data, and the area and the shape of the region except the target region are determined according to the difference between the first geometric data and the second geometric data and the target region on the whole vehicle of the vehicle to be tested according to the position data, so that the sound shielding region is determined.
After the sound-shielding region is determined, sound-insulating and sound-absorbing material is covered in the sound-shielding region. Specifically, the material may be cut into a shape matching the surface of the vehicle to be measured, and the cut material may be adhered to the surface of the vehicle body, using other heavy layer materials such as high surface density EVA (Ethylene Vinyl Acetate Copolymer), lead plate, and steel plate.
In addition, sound absorption cotton can be added between the heavy layer material and the surface of the vehicle body to fill gaps which are not adhered between the heavy layer material and the vehicle body, so that sound transmitted from the gaps to the inside of the vehicle is effectively reduced, and the sound shielding effect is enhanced. The target area is not lined with any sound insulating and absorbing material so that the sound in the vehicle is considered to be transmitted into the vehicle through the target area.
Aiming at the chassis of the vehicle to be tested, in the specific implementation process, the sound insulation and absorption material can be tightly pressed on the chassis by utilizing a lifting device, and gaps of the sound insulation and absorption material are sealed by using rubber, wherein the lifting device can be a screw jack or a jack and the like, and the rubber can be butyl rubber.
For the roof of the vehicle to be tested, as the lengths and the widths of different vehicle types are different, in order to be compatible with different vehicle types as much as possible and to facilitate laying of the sound insulation and absorption material on the vehicle to be tested, the shielding tool shown in fig. 2 can be used for clamping the sound insulation and absorption material. Wherein, the first shielding plate 100 is connected with the second shielding plate 200 through the connection mechanism 400; the standard shielding plate 300 is located between the first shielding plate 100 and the second shielding plate 200, and is flexibly connected to the first shielding plate 100 through the first sealing plate 301 and flexibly connected to the second shielding plate 200 through the second sealing plate 302.
Specifically, the distance between the first shield plate 100 and the second shield plate 200 may be adjusted according to the vehicle width of the vehicle to be measured. Referring to fig. 3 to 4, in an implementation process, the connection mechanism 400 may include: a connecting rod 401, a stud 402, a nut 403 and a washer 404. When the width of the vehicle body to be tested is smaller, the distance between the first shielding plate 100 and the second shielding plate 200 can be shortened and the first shielding plate 100 and the second shielding plate 200 are fixed through the connecting mechanism 400, and at this time, the standard shielding plate 300 is overlapped on the first shielding plate 100 and the second shielding plate 200; when the width of the vehicle body of the vehicle to be tested is large, the distance between the first shielding plate 100 and the second shielding plate 200 can be enlarged and fixed by the connecting mechanism 400, and at this time, the standard shielding plate 300 is flatly laid between the first shielding plate 100 and the second shielding plate 200.
In a specific implementation process, a plurality of holes may be disposed on the connecting rod, and correspondingly, the first shielding plate 100 and the second shielding plate 200 may be disposed with corresponding holes for penetrating the studs 402, so as to achieve a fixing effect. When the distance between the first shielding plate 100 and the second shielding plate 200 is actually adjusted, the position of the hole of the stud 402 on the first shielding plate 100 and/or the second shielding plate 200 may be changed.
It should be noted that the number and the spacing of the openings can be set according to the width of the vehicle to be measured, and when the openings are not used, the openings need to be blocked by sealing materials such as a sealing damping plate or plasticine, so as to prevent sound from entering the vehicle through the openings.
It can be understood that, in addition to the shielding tool set according to the vehicle width of the vehicle to be tested, the shielding tool set may also be set according to the vehicle length of the vehicle to be tested, that is, the shielding tool set may be set along the vehicle length direction of the vehicle to be tested.
In addition, the shielding tools of the side surface and the front windshield and the rear windshield of the vehicle to be tested can be connected with the shielding tools aiming at the roof in a hinge, hinge or bearing mode, and the shielding tools are used for clamping sound insulation and absorption materials so as to shield the sound of the whole vehicle to be tested except for the target area.
In order to further improve the shielding effect on the sound of the vehicle to be detected, specifically, sound insulation and absorption materials can be added on the central control instrument panel and the front row pedal area; sound insulation and absorption materials can be laid at the positions of seats, instrument boards, decorative boards, other glass and the like which have strong sound reflection so as to shield sound. Moreover, the contact positions of the shielding tool with the windshield, the carpet and the left and right vehicle bodies need to be sealed by damping glue and adhesive tapes so as to avoid incomplete sound shielding.
Step S103: first sound data on one side of the target area is collected, and second sound data on the other side of the target area is collected.
Specifically, the method comprises the steps of collecting sound data outside a vehicle at one side of a target area and collecting sound data inside the vehicle at the other side of the target area.
In the specific implementation process, a plurality of microphones can be arranged near a target area of a vehicle to be detected, wherein at least one microphone is arranged in the vehicle of the vehicle to be detected so as to collect sound data of the target area in the vehicle; at least one microphone is arranged outside the vehicle to be tested so as to collect sound data of a target area outside the vehicle.
Based on the above, the sound source in the reverberation chamber is activated to serve as an excitation source, and corresponding sound data is collected through microphones arranged outside and inside the vehicle to be tested, so that the sound insulation performance of the vehicle to be tested is tested.
Because other areas except the target area are covered with the sound insulation and absorption material, sound can not enter the vehicle to be tested through the areas, therefore, the sound in the vehicle can be considered to be transmitted through the target area, and because the sound insulation and absorption material is also covered in the vehicle, the sound collected by the microphone in the vehicle can be considered to be directly transmitted from the target area without the sound reflected by the inner surface of the vehicle, so that the vehicle body is not required to be damaged, the test period is shortened, a plurality of different shielding tools are not required to be manufactured, and the cost in the test process is also reduced.
Step S104: and obtaining sound insulation performance data of the target area of the vehicle to be tested based on the first sound data and the second sound data.
Specifically, the sound insulation performance data of the target area of the vehicle to be tested may be obtained based on a difference between the first sound data and the second sound data, or the sound insulation performance data of the target area of the vehicle to be tested may be obtained based on a ratio of the first sound data to the second sound data.
In the specific implementation process, the outside sound data is collected through the microphone outside the vehicle to be tested, the inside sound data is collected through the microphone inside the vehicle to be tested, and the sound data at least comprises sound intensity and sound pressure level.
For example, the sound insulation performance data of the target area of the vehicle to be tested can be obtained through the following formula (1):
STL＝10lg(Wi-Wt) (1)
in the formula (1), STL represents Sound insulation performance data (Sound Transmission Loss), WiIndicating the sound intensity, W, in the vehicle to be testedtAnd representing the sound intensity outside the vehicle to be tested.
For example, the sound insulation performance data of the target area of the vehicle to be tested can also be obtained through the following formula (2):
NR＝SPLouter cover-SPLInner part (2)
In the formula (2), NR represents a Noise reduction (Noise Reduce) amount, SPLOuter coverRepresents the Sound Pressure Level (Sound Pressure Level), SPL, outside the vehicle to be measuredInner partIndicating that is to be measuredSound pressure level in a vehicle.
After the sound insulation performance data of the target area of the vehicle to be tested is obtained, the vehicle to be tested can be optimized by using the sound insulation performance data so as to improve the quality of Noise, Vibration and Harshness (NVH).
In addition, after the sound insulation performance of the current target area is tested, the next target area can be determined again, and new sound insulation performance tests are carried out.
In a second aspect, based on the same inventive concept, embodiments of the present invention provide a vehicle sound insulation performance testing apparatus.
Referring to fig. 5, the sound insulation performance testing apparatus for a vehicle includes:
a reverberation chamber 501, in which a sound source 502 is arranged, for providing sound required by the test;
the sound shielding tool 503 is configured to cover a sound insulating and absorbing material in a sound shielding area except the target area after the target area on the vehicle to be tested is determined, so that the target area is exposed in the sound source 502;
a first microphone 504, disposed at one side of the target area, for acquiring first sound data;
a second microphone 505, disposed on the other side of the target area, for acquiring second sound data;
and the sound processing device 506 is used for obtaining sound insulation performance data of the target area of the vehicle to be tested based on the first sound data and the second sound data.
As an optional embodiment, the sound insulation performance testing apparatus for a vehicle further includes:
a sound-shielded region determining device (not shown) for detecting a contour of the target region to obtain first contour data; detecting the profile of the vehicle to be detected to obtain second profile data; and determining the sound shielding area according to the first contour data and the second contour data.
As an alternative embodiment, the first contour data comprise first geometric data of the target region and position data; the second contour data includes second geometric data of the vehicle under test.
As an optional implementation manner, the sound masking region determining device is specifically configured to:
based on the difference between the first geometric data and the second geometric data, and the position data, a sound-masking region is determined.
As an optional implementation manner, the sound processing device 506 is specifically configured to:
obtaining sound insulation performance data of a target area of the vehicle to be tested based on the difference value of the first sound data and the second sound data; or obtaining the sound data loss rate of the target area of the vehicle to be detected based on the ratio of the first sound data to the second sound data.
As an optional implementation manner, the first microphone 504 is specifically configured to:
and acquiring the sound data outside the vehicle at one side of the target area.
As an optional implementation, the second microphone 505 is specifically configured to:
and collecting sound data in the vehicle at the other side of the target area.
As an alternative embodiment, the sound insulating and absorbing material includes:
EVA plastics, lead plate, steel sheet, sound absorbing cotton and rubber.
Since the method for testing the sound insulation performance of the vehicle described in this embodiment is a method for implementing the device for testing the sound insulation performance of the vehicle in the embodiment of the present invention, based on the method for testing the sound insulation performance of the vehicle described in the embodiment of the present invention, a person skilled in the art can understand the specific implementation manner of the method in this embodiment and various variations thereof, and therefore, how to implement the method in the embodiment of the present invention is not described in detail here. The method adopted by the vehicle sound insulation performance testing device in the embodiment of the invention is all within the protection scope of the invention as long as the person skilled in the art implements the method.
In a third aspect, based on the same inventive concept, embodiments of the present invention provide a vehicle sound insulation performance test apparatus.
Referring to fig. 6, a sound insulation performance testing apparatus for a vehicle according to an embodiment of the present invention includes: a memory 601, a processor 602, and code stored on the memory and executable on the processor 602, the processor 602 implementing any one of the embodiments of the foregoing vehicle sound insulation performance test method when executing the code.
Where in fig. 6 a bus architecture (represented by bus 600) is shown, bus 600 may include any number of interconnected buses and bridges, and bus 600 links together various circuits including one or more processors, represented by processor 602, and memory, represented by memory 601. The bus 600 may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. A bus interface 605 provides an interface between the bus 600 and the receiver 603 and transmitter 604. The receiver 603 and the transmitter 604 may be the same element, i.e. a transceiver, providing a means for communicating with various other apparatus over a transmission medium. The processor 602 is responsible for managing the bus 600 and general processing, and the memory 601 may be used for storing data used by the processor 602 in performing operations.
Fourth aspect, based on the same inventive concept, as shown in fig. 7, the present embodiment provides a computer-readable storage medium 700, on which a computer program 701 is stored, wherein the program 701, when executed by a processor, implements any one of the embodiments of the first aspect of the foregoing method for testing sound insulation performance of a vehicle.
The technical scheme in the embodiment of the invention at least has the following technical effects or advantages:
according to the method for testing the sound insulation performance of the vehicle, the vehicle to be tested is placed in the preset reverberation room, and the reverberation room is provided with the sound source, so that the reverberation room can provide sound required by testing; then covering a sound-insulating and sound-absorbing material in a sound-shielding area other than the target area to expose the target area in the sound source; then, collecting first sound data on one side of the target area and collecting second sound data on the other side of the target area; and finally, obtaining sound insulation performance data of the target area of the vehicle to be tested based on the first sound data and the second sound data. According to the invention, the sound insulation and absorption material is only required to be covered on the sound shielding area, and the part to be tested is not required to be taken down from the vehicle body, so that the condition of damaging the vehicle body is avoided, the sound insulation and absorption material is not required to be customized, the sound insulation performance test can be carried out only by exposing the target area, the test period is shortened, a plurality of tools are not required to be manufactured, and the cost in the test process is also reduced.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the invention may take the form of a computer product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) having computer-usable code embodied therein.
The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer instructions. These computer instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A method for testing the sound insulation performance of a vehicle is characterized by comprising the following steps:
placing a vehicle to be tested in a reverberation room, wherein a sound source is arranged in the reverberation room;
covering a sound-insulating and sound-absorbing material in a sound-shielding area other than a target area to expose the target area in the sound source;
collecting first sound data on one side of the target area and collecting second sound data on the other side of the target area;
and obtaining sound insulation performance data of the target area of the vehicle to be tested based on the first sound data and the second sound data.
2. The method of claim 1, wherein prior to covering the sound-blocking and sound-absorbing material in the sound-blocking area other than the target area, comprising:
detecting the outline of the target area to obtain first outline data;
detecting the profile of the vehicle to be detected to obtain second profile data;
and determining the sound shielding area according to the first contour data and the second contour data.
3. The method of claim 2,
the first contour data comprises first geometric data and position data of the target region;
the second contour data comprises second geometric data of the vehicle to be tested;
determining the sound shielding area according to the first profile data and the second profile data, including:
determining the sound masking region based on the difference between the first geometric data and the second geometric data and the position data.
4. The method of claim 1, wherein the obtaining sound insulation performance data for the target area of the vehicle under test based on the first sound data and the second sound data comprises:
obtaining sound insulation performance data of the target area of the vehicle to be tested based on the difference value between the first sound data and the second sound data; or
And obtaining sound insulation performance data of the target area of the vehicle to be tested based on the ratio of the first sound data to the second sound data.
5. The method of claim 1, wherein the capturing first sound data on one side of the target area and capturing second sound data on the other side of the target area comprises:
and acquiring the sound data outside the vehicle at one side of the target area and acquiring the sound data inside the vehicle at the other side of the target area.
6. A sound insulation performance test apparatus for a vehicle, characterized by comprising:
the sound source is arranged in the reverberation chamber and used for providing sound required by the test;
the sound shielding tool is used for covering sound insulation and absorption materials in a sound shielding area except for a target area so as to expose the target area in the sound source;
the first microphone is arranged on one side of the target area and used for collecting first sound data;
the second microphone is arranged on the other side of the target area and used for acquiring second sound data;
and the sound processing equipment is used for obtaining sound insulation performance data of the target area of the vehicle to be tested based on the first sound data and the second sound data.
7. The apparatus of claim 6, wherein the sound processing device is specifically configured to:
obtaining sound insulation performance data of the target area of the vehicle to be tested based on the difference value between the first sound data and the second sound data; or
And obtaining the sound data loss rate of the target area of the vehicle to be detected based on the ratio of the first sound data to the second sound data.
8. The apparatus of claim 6, wherein the sound insulating and absorbing material comprises:
EVA plastics, lead plate, steel sheet, sound absorbing cotton and rubber.
9. An electronic device comprising a memory, a processor, and code stored on the memory and executable on the processor, wherein the processor implements the method of any of claims 1-5 when executing the code.
10. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the method of any one of claims 1 to 5.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114659762A (en) * | 2021-12-21 | 2022-06-24 | 东风汽车集团股份有限公司 | Test equipment and test method for sound insulation performance of automobile parts |
| CN114720150A (en) * | 2022-03-30 | 2022-07-08 | 襄阳达安汽车检测中心有限公司 | Test method and test system for sound insulation performance of whole vehicle |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000009689A (en) * | 1998-07-28 | 2000-02-15 | 김정태 | Soundproof test device |
| KR20010001952A (en) * | 1999-06-10 | 2001-01-05 | 김대곤 | Appatatus for testing sound-absorbing capacity and sound-blocking capacity |
| JP2002228643A (en) * | 2001-02-01 | 2002-08-14 | Komatsu Ltd | Method and apparatus for measuring sound insulation performance |
| CN102426191A (en) * | 2011-09-10 | 2012-04-25 | 无锡吉兴汽车声学部件科技有限公司 | Test method for measuring sound absorption coefficient of sound absorption or sound insulation material by use of reverberation chamber |
| CN103115666A (en) * | 2012-07-03 | 2013-05-22 | 重庆长安汽车股份有限公司 | Method of testing and evaluating sound insulation property of finished automobile based on reverberation room |
| CN204556267U (en) * | 2015-03-26 | 2015-08-12 | 奇瑞汽车股份有限公司 | A kind of device for the test of automobile component oise insulation factor |
| CN109541034A (en) * | 2018-11-28 | 2019-03-29 | 中车长春轨道客车股份有限公司 | Train body siding sound insulation property test method based on vehicle semianechoic room environment |
| CN109579980A (en) * | 2018-11-28 | 2019-04-05 | 中车长春轨道客车股份有限公司 | The sound insulation measurement method of track vehicle door system based on reverberation chamber and anechoic room |
| FR3082305A1 (en) * | 2018-06-07 | 2019-12-13 | Psa Automobiles Sa | SOUND PROPAGATION TEST DEVICE AND METHOD |
| CN111812204A (en) * | 2020-09-14 | 2020-10-23 | 恒大新能源汽车投资控股集团有限公司 | Sound insulation performance testing device and method for vehicle sound insulation material and electronic equipment |
| CN112362747A (en) * | 2020-11-02 | 2021-02-12 | 安徽江淮汽车集团股份有限公司 | Sound insulation performance detection method, sound insulation performance detection equipment, storage medium and sound insulation performance detection device |
-
2021
- 2021-08-11 CN CN202110918427.XA patent/CN113790900B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000009689A (en) * | 1998-07-28 | 2000-02-15 | 김정태 | Soundproof test device |
| KR20010001952A (en) * | 1999-06-10 | 2001-01-05 | 김대곤 | Appatatus for testing sound-absorbing capacity and sound-blocking capacity |
| JP2002228643A (en) * | 2001-02-01 | 2002-08-14 | Komatsu Ltd | Method and apparatus for measuring sound insulation performance |
| CN102426191A (en) * | 2011-09-10 | 2012-04-25 | 无锡吉兴汽车声学部件科技有限公司 | Test method for measuring sound absorption coefficient of sound absorption or sound insulation material by use of reverberation chamber |
| CN103115666A (en) * | 2012-07-03 | 2013-05-22 | 重庆长安汽车股份有限公司 | Method of testing and evaluating sound insulation property of finished automobile based on reverberation room |
| CN204556267U (en) * | 2015-03-26 | 2015-08-12 | 奇瑞汽车股份有限公司 | A kind of device for the test of automobile component oise insulation factor |
| FR3082305A1 (en) * | 2018-06-07 | 2019-12-13 | Psa Automobiles Sa | SOUND PROPAGATION TEST DEVICE AND METHOD |
| CN109541034A (en) * | 2018-11-28 | 2019-03-29 | 中车长春轨道客车股份有限公司 | Train body siding sound insulation property test method based on vehicle semianechoic room environment |
| CN109579980A (en) * | 2018-11-28 | 2019-04-05 | 中车长春轨道客车股份有限公司 | The sound insulation measurement method of track vehicle door system based on reverberation chamber and anechoic room |
| CN111812204A (en) * | 2020-09-14 | 2020-10-23 | 恒大新能源汽车投资控股集团有限公司 | Sound insulation performance testing device and method for vehicle sound insulation material and electronic equipment |
| CN112362747A (en) * | 2020-11-02 | 2021-02-12 | 安徽江淮汽车集团股份有限公司 | Sound insulation performance detection method, sound insulation performance detection equipment, storage medium and sound insulation performance detection device |
Non-Patent Citations (2)
| Title |
|---|
| CHIARA SCROSATI: "Uncertainty of facade sound insulation by a Round Robin Test. Evaluations of low-frequency procedure and single numbers", 《BUILDING AND ENVIRONMENT》, vol. 105, pages 253 - 266, XP029641309, DOI: 10.1016/j.buildenv.2016.06.003 * |
| 赵立杰 等: "汽车前围隔声性能的计算方法", 《沈阳航空航天大学学报》, vol. 32, no. 1, pages 38 - 44 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114659762A (en) * | 2021-12-21 | 2022-06-24 | 东风汽车集团股份有限公司 | Test equipment and test method for sound insulation performance of automobile parts |
| CN114720150A (en) * | 2022-03-30 | 2022-07-08 | 襄阳达安汽车检测中心有限公司 | Test method and test system for sound insulation performance of whole vehicle |
| CN114720150B (en) * | 2022-03-30 | 2023-09-12 | 襄阳达安汽车检测中心有限公司 | Test method and test system for sound insulation performance of whole vehicle |
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