CN207036445U - Damping layer vibration attenuation performance test apparatus and its support - Google Patents
Damping layer vibration attenuation performance test apparatus and its support Download PDFInfo
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- CN207036445U CN207036445U CN201720883590.6U CN201720883590U CN207036445U CN 207036445 U CN207036445 U CN 207036445U CN 201720883590 U CN201720883590 U CN 201720883590U CN 207036445 U CN207036445 U CN 207036445U
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Abstract
Damping test equipment technical field is the utility model is related to, more particularly to a kind of damping layer vibration attenuation performance test support, it includes two connecting plates for being used to be fixed on vibration-free tables and be spaced apart between left and right；Also include two support components, two support components are separately positioned on the front-end and back-end of the connecting plate；Each support component includes upper and lower spaced upper connector and lower connector, and two columns being connected between the upper connector and the lower connector, two columns are connected with the connecting plate in left side and the connecting plate on right side respectively.The utility model passes through above-mentioned damping layer vibration attenuation performance test support so that test steel plate is stained with the test steel plate of damping layer and is fixed on vibration-free tables, and test bracket ensure that the accuracy of test result to testing the vibration effect very little of steel plate.The utility model further relates to a kind of damping layer vibration attenuation performance test apparatus for including above-mentioned damping layer vibration attenuation performance test support.
Description
Technical field
Damping test equipment technical field is the utility model is related to, more particularly to a kind of damping layer vibration attenuation performance test branch
Frame, and include the damping layer vibration attenuation performance test apparatus of above-mentioned damping layer vibration attenuation performance test support.
Background technology
Noise, vibration and the comfortableness (NVH) of automobile are to weigh the horizontal important indicator of automobile making.Vehicle traveling process
In by engine and road excitation, vehicle body wallboard produces vibration, but also can because of vibration radiated noise, cause riding comfort
Decline.If adhering to damping layer on vehicle body wallboard, damping layer can by the energy conversion of vehicle body wallboard excited target into heat energy or
The energy expenditure of other forms falls, so as to reach the purpose of vibration and noise reducing, to improve riding comfort.At present, it is various
Damping layer is widely used to the numerous areas such as Aero-Space, train, hard disk, ship and building.
Damping layer is that vibration mechanical energy is converted into thermal energy consumption using the viscoelastic property of high polymer material to fall, so as to reach
The purpose of vibration and noise reducing.In order to be applicable varying environment, operating mode and obtain more excellent vibration and noise reducing performance, people are to damping material
The research of material damping property never stopped, and experimental study is extremely important ways and means.During experiment,
Shake table typically from manufacturer buy, but test steel plate or be stained with damping layer steel plate need by support be arranged on shake
On dynamic platform, in the market also without suitable damping layer vibration attenuation performance test support.
Utility model content
(1) technical problems to be solved
A purpose of the present utility model is to provide a kind of damping layer vibration attenuation performance test support, it is intended at least solves existing
One of technical problem present in technology or correlation technique.
Another purpose of the present utility model is to provide a kind of damping layer vibration attenuation performance test apparatus, it is intended at least solves existing
There is one of technical problem present in technology or correlation technique.
(2) technical scheme
In order to solve the above-mentioned technical problem, the utility model provides a kind of damping layer vibration attenuation performance test support, wherein,
Including the connecting plate two for being fixed on vibration-free tables and being spaced apart between left and right；Also include two support components, two institutes
State the front-end and back-end that support component is separately positioned on the connecting plate；Each support component includes being arranged at intervals up and down
Upper connector and lower connector, and two columns being connected between the upper connector and the lower connector, two
The column is connected with the connecting plate in left side and the connecting plate on right side respectively.
Wherein, the upper connector and the lower connector, the column are equal angle iron, each support component
The upper connector and the lower connector in being symmetrical arranged up and down, the both ends in the first right angle portion of the column respectively with institute
It is parallel with the first right angle portion of the lower connector and link together to state the first right angle portion of upper connector, the of the column
The both ends at two right angles portion it is vertical with the second right angle portion of the upper connector and the second right angle portion of the lower connector respectively and
Link together, the second right angle portion of the column is connected with connecting plate.
Wherein, the second right angle portion of the column and connecting plate bolt connection.
Wherein, under the connecting plate includes superposed first connector, the second connector positioned at middle part and is located at
3rd connector in portion, wherein first connector and the 3rd connector use equal angle iron, second connector uses
Iron plate is made, and the first right angle portion, the second connector, the first right angle portion of the 3rd connector of first connector are perpendicular positioned at one
In straight plane, the second right angle portion of first connector, that the second right angle portion of the 3rd connector is located at the connecting plate is remote
The side of the support component.
Wherein, the second right angle portion of the 3rd connector and the vibration-free tables bolt connection.
Wherein, the first right angle portion of first connector and the first right angle portions of the 3rd connector are not provided with along preceding
Rear to elongated hole, the upper and lower part of the column is respectively arranged with the through hole corresponding with the elongated hole.
Wherein, it is respectively arranged with a left side in the first right angle portion of the upper connector and the first right angle portion of the lower connector
Elongated hole in right direction.
The invention also discloses a kind of damping layer vibration attenuation performance test apparatus, it include four-way signal sampler,
Shake table and the computer being connected with the four-way signal sampler, built with DASP softwares, it is also included such as the computer
Damping layer vibration attenuation performance test support any one of claim 1-7, the test bracket are fixed on the shake table
On, the experimental rig also includes being used to be arranged on test steel plate lower central and the acceleration sensing below steel plate edge support
Device, the acceleration transducer lead to the four-way signal sampler connection.
(3) beneficial effect
Damping layer vibration attenuation performance test support provided by the utility model is used to be fixed on vibration-free tables including two and a left side
Right septum opens up the connecting plate put；Also include two support components, each support component is connected with connecting plate and is used to support and surveys
Steel plate is tried, is fixed on so that testing steel plate or being stained with the test steel plate of damping layer on vibration-free tables, and test bracket is to surveying
The vibration effect very little of steel plate is tried, ensure that the accuracy of test result.
Further, the test bracket passes through at the first right angle portion of the first connector and the first right angle of the 3rd connector
Portion is respectively arranged with elongate slots along the longitudinal direction so that the test bracket can adapt to the test steel plate of different length size.
In addition, the second right angle portion of the upper connector of each support component is provided with the elongate slots on left and right directions, make
Obtain the test steel plate that the test bracket can adapt to different width dimensions.
Brief description of the drawings
Fig. 1 is according to a kind of structural representation of damping layer vibration attenuation performance test support of the present utility model；
Fig. 2 is the left view of the damping layer vibration attenuation performance test support in Fig. 1；
Fig. 3 is the top view of the damping layer vibration attenuation performance test support in Fig. 1；
Fig. 4 is the sectional view of the A-A along Fig. 1；
Fig. 5 is the structural representation of the upper connector of the damping layer vibration attenuation performance test support in Fig. 1；
Fig. 6 is the right view of the upper connector in Fig. 5；
Fig. 7 is the structural representation of the lower connector of the damping layer vibration attenuation performance test support in Fig. 1；
Fig. 8 is the right view of the upper connector in Fig. 7.
In figure, 1：First connector；2：Second connector；3：3rd connector；4：Upper connector；5：Lower connector；6：
Column.
Embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Example is used to illustrate the utility model, but is not limited to the scope of the utility model.
Fig. 1 to Fig. 4 shows a preferred reality according to a kind of damping layer vibration attenuation performance test support of the present utility model
Apply example.As illustrated, the test bracket includes two connecting plates (left sides for being used to be fixed on vibration-free tables and be spaced apart between left and right
Connecting plate and right connection board)；Also include two support components, two support components are separately positioned on the front end of connecting plate with after
End；Each support component includes upper and lower spaced upper connector 4 and lower connector 5, and is connected to the He of upper connector 4
Two columns 6 between lower connection 5, two columns 6 are connected with the left connection board in left side and the right connection board on right side respectively.Make
Used time, test bracket is fixed on vibration-free tables by connecting plate, and steel plate will be tested or be stained with the test steel plate of damping layer
It is fixed on the upper connector 4 of test bracket, then below test steel plate lower central with steel plate marginal test support respectively
Acceleration transducer is installed, the acceleration transducer is connected by data wire with four-way signal sampler, four-way letter
Number Acquisition Instrument is connected with the computer equipped with DASP softwares.Vibration-free tables (such as electric and magnetic oscillation experimental bench), which provide, to be met needed for experiment
Vibration, by comparing steel plate adhesion and the fissipation factor, vibration damping percentage etc. without adhesion damping layer, so as to quantitatively determine damping
The damping property of layer.The utility model is by using above-mentioned damping layer vibration attenuation performance test support so that test steel plate or adhesion
The test steel plate for having damping layer is fixed on vibration-free tables, and test bracket ensure that survey to the vibration effect very little of test steel plate
The accuracy of test result.
Specifically, upper connector 4 and lower connector 5, column 6 are equal angle iron, the upper connector 4 of each support component
With lower connector 5 in being up and down symmetrical arranged, the both ends in the first right angle portion of column 6 the first right angle portion with upper connector 4 respectively
It is parallel with the first right angle portion of lower connector 5 and link together, the both ends in the second right angle portion of column 6 respectively with upper connector
4 the second right angle portion and the second right angle portion of lower connector 5 are vertical and link together, and the second right angle portion of column 6 is with being connected
Plate connects.Preferably, the second right angle portion of column 6 uses detachable connection, such as bolt connection with connecting plate, specifically,
The upper and lower part of column 6 is respectively arranged with the hole passed through for bolt, and the hole passed through for bolt, peace are also equipped with connecting plate
Successively by bolt through column 6 and connecting plate and via nut during dress.
In order that test bracket has enough bearing capacitys, the thicker sheet material of connecting plate generally use is made, in order to just
In the processing of connecting plate, preferably connecting plate includes superposed first connector 1, positioned at second connector 2 at middle part and position
The 3rd connector 3 in bottom, wherein the first connector 1 and the 3rd connector 3 use equal angle iron, the second connector 2 uses
Iron plate is made, and the first right angle portion, the second connector 2, the first right angle portion of the 3rd connector 3 of the first connector 1 are perpendicular positioned at one
In straight plane and it is fixed together by welding, the second right angle portion, the second right angle portion of the 3rd connector 3 of the first connector 1
Positioned at side of the connecting plate away from support component.Second right angle portion of the 3rd weldment 3 is preferably bolted with vibration-free tables.
In addition, the first right angle portions in the first right angle portion of the first connector 1 and the 3rd connector 3 are not provided with along preceding
Rear to elongated hole, in order to adjust the position of the junction between column 4 and connecting plate in the longitudinal direction so that
The test bracket can adapt to the test steel plate of different length size.Specifically, when needing adjustment, column 6 will be used for connecting
The bolt connected between fishplate bar unclamps, and is slided by the bolt in elongated hole to drive the difference of column 6 in the longitudinal direction
Required distance is moved to, then will be screwed again for the bolt connected between column 6 and connecting plate.
Further, the second right angle portion of the upper connector 4 of each support component is provided with elongated on left and right directions
Hole, in order to adjust the link position of test steel plate and upper connector 4 in the lateral direction, so that the test bracket can
Adapt to the test steel plate of different width dimensions.Specifically, by for testing between steel plate and upper connector 4 bolt connected successively
Screwed after elongated hole on through the second right angle portion of test steel plate and upper connector 4.
The invention also discloses a kind of damping layer vibration attenuation performance test apparatus, it include four-way signal sampler,
Shake table and the computer being connected with four-way signal sampler, for computer built with DASP softwares, it also includes damping as above
Layer damping property test bracket, test bracket are fixed on a vibration table, and experimental rig also includes being used to be arranged under test steel plate
Fang Zhongxin and the acceleration transducer below steel plate edge support, acceleration transducer is logical to be connected with four-way signal sampler.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc., the utility model should be included in
Protection domain within.
Claims (8)
1. a kind of damping layer vibration attenuation performance test support, it is characterised in that be used to be fixed on vibration-free tables and left and right including two
It is spaced apart the connecting plate set；Also include two support components, two support components are separately positioned on the connecting plate
Front-end and back-end；Each support component includes upper and lower spaced upper connector and lower connector, and is connected to
Two columns between the upper connector and the lower connector, two columns connecting plate with left side and right side respectively
Connecting plate connection.
2. test bracket as claimed in claim 1, it is characterised in that the upper connector and the lower connector, described vertical
Post is equal angle iron, and the upper connector and the lower connector of each support component are in be symmetrical arranged up and down, institute
It is straight with the first of the first right angle portion of the upper connector and the lower connector respectively to state the both ends in the first right angle portion of column
Corner is parallel and links together, the both ends in the second right angle portion of the column the second right angle portion with the upper connector respectively
Vertical with the second right angle portion of the lower connector and link together, the second right angle portion of the column is connected with connecting plate.
3. test bracket as claimed in claim 2, it is characterised in that the second right angle portion of the column connects with being connected crab bolt
Connect.
4. test bracket as claimed in claim 2, it is characterised in that the connecting plate includes the superposed first connection
Part, the second connector positioned at middle part and the 3rd connector positioned at bottom, wherein first connector and the 3rd connector
Using equal angle iron, second connector is made of iron plate, the first right angle portion of first connector, the second connection
Part, the first right angle portion of the 3rd connector are located in a perpendicular, the second right angle portion of first connector, the 3rd connection
Second right angle portion of part is located at side of the connecting plate away from the support component.
5. test bracket as claimed in claim 4, it is characterised in that the second right angle portion of the 3rd connector subtracts with described
Shake platform bolt connection.
6. test bracket as claimed in claim 5, it is characterised in that the first right angle portion of first connector and the 3rd connects
First right angle portions of fitting are not provided with elongated hole along the longitudinal direction, the upper and lower part of the column be respectively arranged with
The corresponding through hole of the elongated hole.
7. test bracket as claimed in claim 6, it is characterised in that the first right angle portion and the lower company of the upper connector
The elongated hole being respectively arranged with first right angle portion of fitting on left and right directions.
A kind of 8. damping layer vibration attenuation performance test apparatus, it is characterised in that including four-way signal sampler, shake table and with
The computer of the four-way signal sampler connection, built with DASP softwares, it is also included as in claim 1-7 the computer
Damping layer vibration attenuation performance test support described in any one, the test bracket are fixed on the shake table, the experiment dress
Putting also includes being used to be arranged on test steel plate lower central and the acceleration transducer below steel plate edge support, the acceleration
Sensor leads to the four-way signal sampler connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720883590.6U CN207036445U (en) | 2017-07-20 | 2017-07-20 | Damping layer vibration attenuation performance test apparatus and its support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720883590.6U CN207036445U (en) | 2017-07-20 | 2017-07-20 | Damping layer vibration attenuation performance test apparatus and its support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207036445U true CN207036445U (en) | 2018-02-23 |
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ID=61463901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720883590.6U Active CN207036445U (en) | 2017-07-20 | 2017-07-20 | Damping layer vibration attenuation performance test apparatus and its support |
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| Country | Link |
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| CN (1) | CN207036445U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109827728A (en) * | 2019-03-06 | 2019-05-31 | 北京市劳动保护科学研究所 | Damping structure anti-acoustic capability test bracket, experimental rig and its method |
-
2017
- 2017-07-20 CN CN201720883590.6U patent/CN207036445U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109827728A (en) * | 2019-03-06 | 2019-05-31 | 北京市劳动保护科学研究所 | Damping structure anti-acoustic capability test bracket, experimental rig and its method |
| CN109827728B (en) * | 2019-03-06 | 2020-10-09 | 北京市劳动保护科学研究所 | Damping structure noise reduction performance test support, test device and method |
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