CN105486749A - Acoustic part-grade sound insulation testing wall for automobile - Google Patents
Acoustic part-grade sound insulation testing wall for automobile Download PDFInfo
- Publication number
- CN105486749A CN105486749A CN201610056275.6A CN201610056275A CN105486749A CN 105486749 A CN105486749 A CN 105486749A CN 201610056275 A CN201610056275 A CN 201610056275A CN 105486749 A CN105486749 A CN 105486749A
- Authority
- CN
- China
- Prior art keywords
- sound insulation
- outside framework
- wall
- insulation measurement
- level sound
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
The invention discloses an acoustic part-grade sound insulation testing wall for an automobile. The acoustic part-grade sound insulation testing wall is installed between a reverberation chamber and an anechoic chamber and comprises an outer frame. The outer frame comprises a front-and-back-through cavity, an automobile body is fixed into the cavity through a support, light bricks are sealed to the front side and the back side of the automobile body respectively, the portion between the light bricks is filled with sound absorbing materials, and two forklift holes are formed in the lower portion of the outer frame. According to the acoustic part-grade sound insulation testing wall, as labor is replaced with a special device, direction operation of a worker can be avoided as far as possible, labor hours and labor are saved, and safety is better improved; as the device can be recycled, waste of materials can be greatly reduced; as the structure of a wall body and the structure of a sound insulation wall are adopted in cooperation with a fixing block and a nut, the installed stability can be improved; as a large quantity of light sound insulation materials are used, the sound insulation performance of the wall body can be improved while the self weight of the sound insulation wall is greatly reduced, and tested data are more real.
Description
Technical field
The application relates to a kind of car acpistocs part level sound insulation measurement wall.
Background technology
Traditional car acpistocs part level sound insulation measurement method comprises:
1), cut vehicle body, the parts of needs are placed in sound-insulation wall;
2), filling concrete is built;
3), use manpower to carry, sound-proof wall is moved in sound insulation window;
4) adjustment and installation (rely on manpower completely, do not have guiding mechanism, install very difficult, quite consuming time), is carried out;
5), by the sealing gap between window and sound-proof wall.
Said method is adopted to there is following technical matters:
1), use manpower to carry, because sound-proof wall size is comparatively large, operating space is less, easily industrial accident occurs during dismounting.
2), when installing between body of wall, gap is less, and installation difficulty is large, length consuming time.
3), sound-proof wall cannot repeatedly recycle, and finish using and can only scrap, testing cost is higher.
4), sound-proof wall reverberation chamber side surface only consider sound insulation, do not consider the impact of whole reverberation chamber, surface of wall as reflecting surface, cannot have certain influence to whole reverberation field.
Summary of the invention
The object of the present invention is to provide a kind of car acpistocs part level sound insulation measurement wall, to overcome deficiency of the prior art.
For achieving the above object, the invention provides following technical scheme:
The embodiment of the present application discloses a kind of car acpistocs part level sound insulation measurement wall, it is installed between reverberation chamber and anechoic room, comprise outside framework, described outside framework has the cavity communicated before and after, vehicle body is fixed with by support in described cavity, the both sides, front and back of described vehicle body are sealed with light-weight brick respectively, are filled with acoustic absorbant between described light-weight brick, and the below of described outside framework is formed with two forklift holes.
Preferably, in above-mentioned car acpistocs part level sound insulation measurement wall, described outside framework has the main part of cuboid, the side of this main part protrudes out the opening gradually extension that reduces of property, the other side of this main part protrudes out the installation portion of annular to surrounding, described installation portion offers multiple mounting hole, and described main part and extension surround described cavity.
Preferably, in above-mentioned car acpistocs part level sound insulation measurement wall, the inwall of described main part and extension has protruded out reinforcement.
Preferably, in above-mentioned car acpistocs part level sound insulation measurement wall, described support comprises first steel pipe of vertical welding between described vehicle body and outside framework and horizontal welding and is connected to the second steel pipe between described vehicle body and outside framework.
Preferably, in above-mentioned car acpistocs part level sound insulation measurement wall, described first steel pipe and the second steel pipe adopt wall thickness to be greater than 3mm, to grow up in 30mm, the square tube being wider than 20mm.
Preferably, in above-mentioned car acpistocs part level sound insulation measurement wall, described light-weight brick material meets: sound insulation property is higher than 53dB; Density is at 400 ~ 650kg/m
3between.
Preferably, in above-mentioned car acpistocs part level sound insulation measurement wall, the density of acoustic absorbant is less than 15kg/m
3.
Preferably, in above-mentioned car acpistocs part level sound insulation measurement wall, be formed with installation passage between described reverberation chamber and anechoic room, the shape of this installation passage and the form fit of described outside framework, and the gap between the inwall of described installation passage and the outer wall of described outside framework is 3 ~ 5mm.
Compared with prior art, the invention has the advantages that:
(1), this is novel artificial owing to using special equipment to replace, can avoid workman's direct control as far as possible, save man-hour, saves artificial, more improves security;
(2), this new device owing to recycling, can greatly reduce the waste to material, a large amount of saving money (once test expends 20-25w);
(3), this novel structure by body of wall and sound-proof wall, collocation fixed block and nut, can strengthen the stability after installation.
(4), this is novel owing to using light-duty sound insulating material in a large number, while greatly can reducing sound-proof wall deadweight, strengthens the sound insulation property of body of wall, makes test data truer.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, the accompanying drawing that the following describes is only some embodiments recorded in the application, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Figure 1 shows that the schematic diagram that in the specific embodiment of the invention, reverberation chamber is communicated with anechoic room;
Figure 2 shows that outside framework in the specific embodiment of the invention perspective view;
Figure 3 shows that the side view after specific embodiment of the invention China and foreign countries frame installation vehicle body;
Figure 4 shows that the side view after specific embodiment of the invention China and foreign countries frame installation light-weight brick;
Figure 5 shows that the structural representation that in the specific embodiment of the invention, sound insulation measurement wall is installed.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be described in detail the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite not making creative work, all belongs to the scope of protection of the invention.
Shown in composition graphs 1, car acpistocs part level sound insulation measurement wall, it is installed between reverberation chamber 1 and anechoic room 2, comprises outside framework 3.
Shown in composition graphs 2 to Fig. 4, outside framework 3 has the cavity 301 communicated before and after, and be fixed with vehicle body 4 by support in cavity 301, the both sides, front and back of vehicle body 4 are sealed with light-weight brick 5 respectively, be filled with acoustic absorbant 6 between light-weight brick, the below of outside framework 3 is formed with two forklift holes 302.
Outside framework 3 has the main part 303 of cuboid, the side of this main part protrudes out the opening gradually extension 304 that reduces of property, the other side of this main part 303 protrudes out the installation portion 305 of annular to surrounding, installation portion 305 offers multiple mounting hole 306, main part 303 and extension 304 surround described cavity 301.
Further, the inwall of main part 303 and extension 304 has protruded out reinforcement 307.
In this technical scheme, use reinforcing rib structure to reinforce, ensure that it is not out of shape under external force.
Further, support comprises first steel pipe 701 of vertical welding between vehicle body 4 and outside framework and horizontal welding and is connected to the second steel pipe 702 between vehicle body and outside framework.First steel pipe and the second steel pipe adopt wall thickness to be greater than 3mm, to grow up in 30mm, the square tube being wider than 20mm.
In this technical scheme, steel pipe, as reinforcing member, is welded between panel beating and vehicle body.
Further, light-weight brick material meets: sound insulation property is higher than 53dB; Density is at 400 ~ 650kg/m
3between; Light-weight brick intensity need be 85% of intensity own, need reserve two forklift holes
Further, the density of acoustic absorbant is less than 15kg/m
3.
Also to meet:
1, this material should reach fire-retardant fireproof requirement
2, this material need reach moistureproof requirement
Further, be formed between reverberation chamber and anechoic room and passage 9 is installed, the shape of this installation passage 9 and the form fit of outside framework, and the gap of installing between the inwall of passage and the outer wall of outside framework is 3 ~ 5mm.
After sound insulation measurement wall has been assembled, by carrying out integral installation shown in Fig. 5.Fixed block is used sound-proof wall and metope to be fixed, and fastening bolt.
In sum, this novel tool has the following advantages:
1) machinery is used to replace artificial method to complete the installation of body of wall
2) by reasonably designing under the prerequisite of guaranteed performance, the overall weight of sound-proof wall is reduced
3) body of wall and frame structure are improved, make it more convenient in installation, stable
4) housing can repeatedly recycle, and greatly reduces testing expense
It should be noted that, in this article, the such as relational terms of first and second grades and so on is only used for an entity or operation to separate with another entity or operational zone, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
The above is only the embodiment of the application; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the application's principle; can also make some improvements and modifications, these improvements and modifications also should be considered as the protection domain of the application.
Claims (8)
1. a car acpistocs part level sound insulation measurement wall, it is installed between reverberation chamber and anechoic room, it is characterized in that, comprise outside framework, described outside framework has the cavity communicated before and after, and be fixed with vehicle body by support in described cavity, the both sides, front and back of described vehicle body are sealed with light-weight brick respectively, be filled with acoustic absorbant between described light-weight brick, the below of described outside framework is formed with two forklift holes.
2. car acpistocs part level sound insulation measurement wall according to claim 1, it is characterized in that: described outside framework has the main part of cuboid, the side of this main part protrudes out the opening gradually extension that reduces of property, the other side of this main part protrudes out the installation portion of annular to surrounding, described installation portion offers multiple mounting hole, and described main part and extension surround described cavity.
3. car acpistocs part level sound insulation measurement wall according to claim 2, is characterized in that: the inwall of described main part and extension has protruded out reinforcement.
4. car acpistocs part level sound insulation measurement wall according to claim 1, is characterized in that: described support comprises first steel pipe of vertical welding between described vehicle body and outside framework and horizontal welding and is connected to the second steel pipe between described vehicle body and outside framework.
5. car acpistocs part level sound insulation measurement wall according to claim 4, is characterized in that: described first steel pipe and the second steel pipe adopt wall thickness to be greater than 3mm, to grow up in 30mm, the square tube being wider than 20mm.
6. car acpistocs part level sound insulation measurement wall according to claim 1, is characterized in that: described light-weight brick material meets: sound insulation property is higher than 53dB; Density is at 400 ~ 650kg/m
3between.
7. car acpistocs part level sound insulation measurement wall according to claim 1, is characterized in that: the density of acoustic absorbant is less than 15kg/m
3.
8. car acpistocs part level sound insulation measurement wall according to claim 1, it is characterized in that: between described reverberation chamber and anechoic room, be formed with installation passage, the shape of this installation passage and the form fit of described outside framework, and the gap between the inwall of described installation passage and the outer wall of described outside framework is 3 ~ 5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610056275.6A CN105486749B (en) | 2016-01-26 | 2016-01-26 | Car acpistocs part grade sound insulation measurement wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610056275.6A CN105486749B (en) | 2016-01-26 | 2016-01-26 | Car acpistocs part grade sound insulation measurement wall |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105486749A true CN105486749A (en) | 2016-04-13 |
| CN105486749B CN105486749B (en) | 2018-11-06 |
Family
ID=55673867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610056275.6A Active CN105486749B (en) | 2016-01-26 | 2016-01-26 | Car acpistocs part grade sound insulation measurement wall |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105486749B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106018564A (en) * | 2016-07-25 | 2016-10-12 | 上海声望声学科技股份有限公司 | Test frame structure |
| CN106979977A (en) * | 2017-02-17 | 2017-07-25 | 广州汽车集团股份有限公司 | Automobile front wall sound insulation property Forecasting Methodology |
| CN109307711A (en) * | 2018-11-28 | 2019-02-05 | 中车长春轨道客车股份有限公司 | Train run-through channel sound insulation property test method based on reverberation chamber and anechoic room |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2669689A1 (en) * | 2012-05-29 | 2013-12-04 | MBDA UK Limited | A chamber for testing electrical and electronic apparatus |
| CN103439407A (en) * | 2013-08-09 | 2013-12-11 | 无锡吉兴汽车声学部件科技有限公司 | Tool for carrying out sound insulation testing on automobile acoustic part material |
| US8854246B1 (en) * | 2011-11-02 | 2014-10-07 | The United States Of America As Represented By The Secretary Of The Navy | Method of converting an electromagnetic anechoic test chamber to an electromagnetic reverberation test chamber |
| CN105201378A (en) * | 2015-08-19 | 2015-12-30 | 上海华特汽车配件有限公司 | Sound insulation window with composite structure |
-
2016
- 2016-01-26 CN CN201610056275.6A patent/CN105486749B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8854246B1 (en) * | 2011-11-02 | 2014-10-07 | The United States Of America As Represented By The Secretary Of The Navy | Method of converting an electromagnetic anechoic test chamber to an electromagnetic reverberation test chamber |
| EP2669689A1 (en) * | 2012-05-29 | 2013-12-04 | MBDA UK Limited | A chamber for testing electrical and electronic apparatus |
| CN103439407A (en) * | 2013-08-09 | 2013-12-11 | 无锡吉兴汽车声学部件科技有限公司 | Tool for carrying out sound insulation testing on automobile acoustic part material |
| CN105201378A (en) * | 2015-08-19 | 2015-12-30 | 上海华特汽车配件有限公司 | Sound insulation window with composite structure |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106018564A (en) * | 2016-07-25 | 2016-10-12 | 上海声望声学科技股份有限公司 | Test frame structure |
| CN106018564B (en) * | 2016-07-25 | 2018-09-04 | 上海声望声学科技股份有限公司 | A kind of test frame structure |
| CN106979977A (en) * | 2017-02-17 | 2017-07-25 | 广州汽车集团股份有限公司 | Automobile front wall sound insulation property Forecasting Methodology |
| CN109307711A (en) * | 2018-11-28 | 2019-02-05 | 中车长春轨道客车股份有限公司 | Train run-through channel sound insulation property test method based on reverberation chamber and anechoic room |
| CN109307711B (en) * | 2018-11-28 | 2022-01-25 | 中车长春轨道客车股份有限公司 | Train through passage sound insulation performance test method based on reverberation chamber and anechoic chamber |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105486749B (en) | 2018-11-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105486749A (en) | Acoustic part-grade sound insulation testing wall for automobile | |
| CN202627475U (en) | Scaffold wall connecting member | |
| CN109403788A (en) | A kind of high-precision high-intensity protective door load module | |
| CN101608511A (en) | A kind of vibration abatement and antiseismic structure system | |
| CN203925202U (en) | A kind of sound proof window being connected with sound attenuation room for reverberation room | |
| CN201495916U (en) | Installation structure of door window after being installed with wall | |
| CN105550418B (en) | CFRP plate reinforces the calculation method for setting the Ultimate flexural strength of core beam | |
| CN205329916U (en) | Removable module ization wall frame and walling system | |
| CN102535926B (en) | A kind of Multipurpose anti-seismic plastic movable plank house | |
| CN109138785B (en) | Soundproof door of anechoic room | |
| JP2009197398A (en) | Seismic control structure | |
| CN208604793U (en) | A kind of assembled wall | |
| CN101994454A (en) | Installation structure for door and window mounted on wall | |
| CN209293854U (en) | A kind of high-precision high intensity assembled protection door frame wall | |
| CN207999081U (en) | Masonry panel top concrete directly fills out formula construction auxiliary device | |
| CN217420102U (en) | Assembled integrated wall | |
| CN204510040U (en) | A kind of novel inorganic sound barrier | |
| CN212105642U (en) | Sound insulation door | |
| CN208039550U (en) | The hidden formula adapting system of glass curtain wall | |
| CN219706348U (en) | Foamed aluminum composite acoustic board for mine | |
| CN210912084U (en) | Fill electric pile built-in | |
| CN205502621U (en) | Reinforcing apparatus that is connected of assemblyization building wall and post | |
| CN209779878U (en) | whole board and crossbeam connected node between precast concrete heat preservation | |
| CN220285161U (en) | Concrete prefabricated component convenient to installation | |
| CN211121219U (en) | Auxiliary device for monitoring and measuring peripheral convergence of tunnel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |