CN114061876A - Damping characteristic measuring device - Google Patents
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- CN114061876A CN114061876A CN202111277645.6A CN202111277645A CN114061876A CN 114061876 A CN114061876 A CN 114061876A CN 202111277645 A CN202111277645 A CN 202111277645A CN 114061876 A CN114061876 A CN 114061876A
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- 238000013016 damping Methods 0.000 title claims abstract description 104
- 239000000463 material Substances 0.000 claims abstract description 53
- 238000003825 pressing Methods 0.000 claims description 11
- 230000000694 effects Effects 0.000 abstract description 13
- 238000005259 measurement Methods 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 description 13
- 238000002474 experimental method Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 238000002955 isolation Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000013461 design Methods 0.000 description 5
- 239000003190 viscoelastic substance Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 238000004026 adhesive bonding Methods 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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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
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
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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
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/025—Measuring arrangements
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Abstract
The application belongs to the field of measuring equipment, and particularly relates to a damping characteristic measuring device. A damping characteristic measurement apparatus comprising: a first fixed part; at least two bearing parts, wherein the bearing parts are arranged on the first fixing part; the connecting parts are arranged in one-to-one correspondence with the bearing parts and movably arranged on the bearing parts along the extension direction of the bearing parts; the fixing component is used for fixing the connecting part to a preset position of the bearing part; the elastic vibration part is suspended and fixed between the at least two connecting parts; the counterweight part is arranged in the middle of the elastic vibration part; the clamping assembly comprises a first clamping part and a second clamping part, the first clamping part is connected with the elastic vibration part, the second clamping part is connected with the first fixing part, and meanwhile the first clamping part and the second clamping part are connected through damping materials to be tested. This application has reached the effect that enlarges measuring device application scope.
Description
Technical Field
The application belongs to the field of measuring equipment, and particularly relates to a damping characteristic measuring device.
Background
As is well known, the damping characteristics of viscoelastic materials have a considerable role in the field of vibration reduction and vibration isolation, and if the most suitable damping material is found in practical engineering, the vibration isolation effect can be greatly improved, and more benefits are generated, so that it is particularly important to accurately measure and obtain the damping coefficient and the vibration isolation effect of the damping material.
Most of the existing devices for measuring the damping of the viscoelastic material have certain limitations in application, have high requirements on the operation of experiments, and have limited range for testing the damping fin, particularly for testing smaller damping fins.
Disclosure of Invention
An object of the embodiment of the application is to provide a damping characteristic measuring device, and the technical problem that the application range of the measuring device is limited in the prior art is solved.
To achieve the above object, according to one aspect of the present application, there is provided a damping characteristic measuring apparatus including: a first fixed part;
at least two bearing parts, wherein the bearing parts are arranged on the first fixing part;
the connecting parts are arranged in one-to-one correspondence with the bearing parts and movably arranged on the bearing parts along the extension direction of the bearing parts;
the fixing component is used for fixing the connecting part to a preset position of the bearing part;
the elastic vibration part is suspended and fixed between the at least two connecting parts;
the counterweight part is arranged in the middle of the elastic vibration part;
the clamping assembly comprises a first clamping part and a second clamping part, the first clamping part is connected with the elastic vibration part, the second clamping part is connected with the first fixing part, and meanwhile the first clamping part and the second clamping part are connected through damping materials to be tested.
Optionally, the elastic vibration part is detachably connected with the connecting part.
Optionally, the fixing assembly includes at least two first fixing nuts, and the first fixing nuts are sleeved on the bearing portion and are in threaded connection with the bearing portion; the connecting portion is clamped between adjacent two of the first fixing nuts.
Optionally, the damping characteristic measuring device further includes at least two pressing portions, the pressing portions are disposed in one-to-one correspondence with the connecting portions, and the pressing portions are detachably mounted on one side of the elastic vibration portion away from the connecting portions.
Optionally, the first clamping portion and the second clamping portion are distributed in a vertically staggered manner, one end of the first clamping portion, which is far away from the second clamping portion, is connected with the counterweight portion, and one end of the second clamping portion, which is far away from the first clamping portion, is connected with the first fixing portion.
Optionally, the clamping assembly further comprises two connecting pieces, one connecting piece is arranged at one end of the first clamping portion, which is far away from the second clamping portion, and is connected with the counterweight portion; the other connecting piece is arranged at one end, far away from the first clamping part, of the second clamping part and is connected with the first fixing part.
Optionally, the connecting piece is detachably connected with the counterweight part; the connecting piece is detachably connected with the first fixing part.
Optionally, the first fixing portion, the connecting member and the weight portion are coaxially arranged.
Optionally, the damping characteristic measuring device further includes a second fixing portion disposed on the first fixing portion; the second fixing parts are arranged in one-to-one correspondence with the bearing parts, and the bearing parts extend into the second fixing parts and are detachably connected with the second fixing parts.
Optionally, the damping characteristic measuring device further comprises a second fixing nut, and the second fixing nut is sleeved on the bearing part and is in threaded connection with the bearing part; the second fixing nut is arranged between the second fixing part and the connecting part and is attached to the second fixing part.
The application provides a damping characteristic measuring device's beneficial effect lies in: compared with the prior art, this application can be according to the measuring height between the flexible change elastic vibration portion of the damping material that awaits measuring of not unidimensional and the first fixed part, and especially less damping material that awaits measuring also can realize measuring, has reached the effect that enlarges measuring device application scope.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a front view of a damping characteristic measuring apparatus provided in an embodiment of the present application;
fig. 2 is a schematic structural diagram of a damping characteristic measurement apparatus according to an embodiment of the present application;
reference numerals referred to in the above figures are detailed below:
1. a first fixed part; 2. a bearing part; 3. a connecting portion; 4. an elastic vibrating section; 5. a counterweight portion; 6. a pressing part; 7. a first fixing nut; 8. a second fixed part; 9. a second fixing nut; 10. a first clamping portion; 11. a second clamping portion; 12. a connecting member; 13. and (5) damping material to be tested.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element. The embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically defined otherwise.
As described in the background art, the damping characteristics of the viscoelastic material are not negligible in the field of vibration damping and vibration isolation, and if the most suitable damping material is found in the actual engineering, the vibration isolation effect can be greatly improved, and more benefits are generated, so that it is important to accurately measure and obtain the damping coefficient and the vibration isolation effect of the damping material.
Most of the existing devices for measuring the damping of the viscoelastic material have certain limitations in application, have high requirements on the operation of experiments, and have limited range for testing the damping fin, particularly for testing smaller damping fins.
Referring to fig. 1 and 2, in order to solve the above-mentioned problems, according to an aspect of the present application, an embodiment of the present application provides a damping characteristic measuring apparatus including: the first fixing part 1, at least two bearing parts 2, at least two connecting parts 3, a fixing component, an elastic vibration part 4, a counterweight part 5 and a clamping component. The bearing part 2 is arranged on the first fixing part 1; the connecting parts 3 are arranged in one-to-one correspondence with the bearing parts 2, and the connecting parts 3 are movably arranged on the bearing parts 2 along the extension direction of the bearing parts 2; the fixing component is used for fixing the connecting part 3 to a preset position of the bearing part 2; the elastic vibration part 4 is suspended and fixed between the at least two connecting parts 3; the weight 5 is provided in the middle of the elastic vibrating portion 4.
The clamping assembly comprises a first clamping part 10 and a second clamping part 11, the first clamping part 10 is connected with the elastic vibration part 4, the second clamping part 11 is connected with the first fixing part 1, and meanwhile the first clamping part 10 and the second clamping part 11 are connected through a damping material 13 to be tested.
When measuring the damping characteristic of the damping material 13 to be measured, the measuring device needs to be placed on a vibrating device for operation, in the embodiment of the present application, the vibrating device adopts a vibrating table, and the vibrating table is a conventional instrument, and belongs to an instrument that can be conventionally used by a person skilled in the art. Meanwhile, the first fixing portion 1, the bearing portion 2, and the connecting portion 3 are all objects with infinite rigidity, and belong to common knowledge of those skilled in the art.
Before measuring the damping characteristic of the damping material 13 that awaits measuring that the size is different, at first install first fixed part 1 on the shaking table surface, secondly fix damping material 13 that awaits measuring between first clamping part 10 and second clamping part 11 through modes such as gluing, realize the damping material 13 that awaits measuring, the connection of first clamping part 10 and second clamping part 11, it is concrete, in this application embodiment, damping material 13 that awaits measuring adopts the damping layer that awaits measuring that viscoelastic material made.
Then, a combination of the clamping component and the damping material 13 to be measured (hereinafter referred to as a combination) is connected with the first fixing portion 1, after the approximate height of the combination is observed, the connecting portion 3 is fixed to a preset position through the fixing component, the elastic vibration portion 4 is installed between at least two connecting portions 3, and finally the combination is connected with the counterweight portion 5.
In the vibration test process, sensors are arranged on the counterweight part 5 and the first fixing part 1 as measuring points; when the vibration table starts to work, the first fixing part 1 immediately starts to vibrate, and a sensor arranged on the first fixing part 1 starts to acquire vibration data of the vibration table; since the coupling member is connected to the weight portion 5 and the first fixing portion 1, the weight portion 5 also starts to vibrate immediately, the sensor disposed on the weight portion 5 starts to acquire vibration data of the weight portion 5, and meanwhile, since the damping material 13 to be measured is disposed between the first clamping portion 10 and the second clamping portion 11, the damping material 13 to be measured can attenuate the vibration of the weight portion 5, that is, the vibration data acquired by the sensor disposed on the weight portion 5 is the vibration data attenuated by the damping material 13 to be measured.
Through a control variable experiment, vibration data of the vibration table and the counterweight part 5 are respectively measured after the damping material 13 to be measured is added, the damping material 13 to be measured is not added, the area of the damping material 13 to be measured is changed, and after the two data are compared, the damping parameter of the damping material 13 to be measured can be calculated.
Compared with the prior art, the measuring device has the advantages that the measuring height between the elastic vibration part 4 and the first fixing part 1 can be flexibly changed according to damping materials 13 to be measured with different sizes, especially, the smaller damping materials 13 to be measured can be measured, and the effect of expanding the application range of the measuring device is achieved. Meanwhile, the design can also ensure that the smaller damping material 13 to be tested can be stably installed, thereby greatly improving the success rate of the test. In addition, the counterweight part 5 in the measuring device plays a role of counterweight the elastic vibration part 4, so that the vibration amplitude of the elastic vibration part 4 and the counterweight part 5 is increased, and the accuracy of the acquired damping characteristic data of the damping material 13 to be measured is improved.
Specifically, the fixing component comprises at least two first fixing nuts 7, and the first fixing nuts 7 are sleeved on the bearing part 2 and are in threaded connection with the bearing part 2; the connecting portions 3 are sandwiched between adjacent two first fixing nuts 7.
After the approximate height of the combination is determined, a first fixing nut 7 is screwed into the bearing part 2 to be used as the bottom of the connecting part 3 for positioning, and then the connecting part 3 is sleeved on the bearing part 2; after the connecting part 3 is attached to the first fixing nut 7, the elastic vibration part 4 is installed between the connecting parts 3, and the combined body penetrates through the elastic vibration part 4. In the process, the heights of the first fixing nut 7, the connecting part 3 and the elastic vibration part 4 are adjusted according to the height of the combined body, then the first fixing nut 7 is screwed into the bearing part 2 again, after the proper height of the combined body is determined again, the four first fixing nuts 7 are screwed, and finally the counterweight part 5 is connected with the combined body. Due to the design, the height between the elastic vibration part 4 and the first fixing part 1 can be adjusted conveniently according to damping materials 13 to be measured with different sizes, and the application range of the measuring device is expanded.
In the embodiment of the present application, there are two first fixing nuts 7, and there is one first fixing nut at each of the upper and lower ends of the connecting portion 3, but in other examples, there may be three or more first fixing nuts 7, but there is at least one first fixing nut 7 at each of the upper and lower ends of the connecting portion 3.
In this embodiment, the elastic vibration part 4 is detachably connected to the connecting part 3.
The thickness of the elastic vibration part 4 has an influence on the vibration effect of the vibration table transmitted to the weight part 5. Specifically, the thicker the thickness of the elastic vibration part 4 is, the smaller the vibration effect of the vibration table transmitted to the weight part 5 is, and conversely, the thinner the thickness of the elastic vibration part 4 is, the larger the vibration effect of the vibration table transmitted to the weight part 5 is. The elastic vibration part 4 is detachably connected with the connecting part 3, so that the elastic vibration part 4 with different thicknesses can be replaced to obtain more vibration data under the condition that other experimental parameters are not changed, and more accurate damping characteristic data of the damping material 13 to be measured can be obtained; meanwhile, the external excitation can be restrained to a certain degree, and particularly, the test on the smaller damping material 13 to be tested is realized, so that the test success rate is improved, the experiment progress is shortened, the test range of the damping material 13 to be tested is also improved, and the application range of the measuring device is expanded.
In the embodiment of the present application, the elastic vibration portion 4 and the connecting portion 3 are connected by a bolt, but in other examples, the elastic vibration portion 4 and the connecting portion 3 may also be connected by other detachable connection methods.
The damping characteristic measuring device in this embodiment further includes at least two pressing portions 6, the pressing portions 6 are disposed in one-to-one correspondence with the connecting portions 3, and the pressing portions 6 are detachably mounted on one side of the elastic vibrating portion 4 away from the connecting portions 3.
The pressure portion 6 that sets up under the prerequisite that can change the elastic vibration portion 4 of different thickness, has improved the joint strength of elastic vibration portion 4 with connecting portion 3, has not only guaranteed the normal development of experiment, has further improved the accuracy of the damping characteristic data of the damping material 13 that awaits measuring who acquires simultaneously.
In this embodiment, the first clamping portion 10 and the second clamping portion 11 are distributed in a vertically staggered manner, one end of the first clamping portion 10 away from the second clamping portion 11 is connected to the counterweight portion 5, and one end of the second clamping portion 11 away from the first clamping portion 10 is connected to the first fixing portion 1.
Before the vibration test, the damping material 13 to be tested is fixed between the first clamping part 10 and the second clamping part 11 in a cementing mode, and the first clamping part 10 and the second clamping part 11 are distributed in a vertically staggered mode.
In the vibration test process, after the vibration table starts to work, the vibration generated by the vibration table is transmitted to the first fixing portion 1, the first fixing portion 1 is transmitted to the second clamping portion 11, the second clamping portion 11 is transmitted to the damping material 13 to be tested, after the damping material 13 to be tested absorbs part of vibration, the rest vibration is transmitted to the first clamping portion 10, the first clamping portion 10 is transmitted to the counterweight portion 5, and at the moment, the sensor arranged on the counterweight portion 5 can acquire vibration data weakened through the damping material 13 to be tested.
The clamping assembly in this embodiment further includes two connecting members 12, one connecting member 12 is disposed at an end of the first clamping portion 10 away from the second clamping portion 11, and is connected to the weight portion 5; the other connecting piece 12 is disposed at one end of the second clamping portion 11 far away from the first clamping portion 10, and is connected to the first fixing portion 1.
In particular, the connecting member 12 is an infinitely rigid object. The connecting piece 12 is arranged to connect the first clamping part 10 with the counterweight part 5 and connect the second clamping part 11 with the first fixing part 1; on the other hand, because the connecting piece 12 is an object with infinite rigidity, the loss of vibration generated in the transmission process is reduced by the connecting piece 12, and the accuracy of the acquired damping characteristic data of the damping material 13 to be measured is further improved.
In this embodiment, the connecting member 12 is detachably connected to the weight portion 5, and the connecting member 12 is detachably connected to the first fixing portion 1.
Specifically, in the embodiment of the present application, the connecting member 12 and the weight portion 5 are connected by a screw thread, and the connecting member 12 and the first fixing portion 1 are also connected by a screw thread, however, in other examples, the connecting member 12 and the weight portion 5, and the connecting member 12 and the first fixing portion 1 may also be detachably connected in other forms, such as a clamping connection or a riveting connection. Due to the design, the damping materials 13 to be tested with different sizes can be replaced conveniently for the quantity control experiment.
The first fixing portion 1, the connecting member 12, and the weight portion 5 in the present embodiment are coaxially arranged. The design further improves the accuracy of the acquired damping characteristic data of the damping material to be measured 13.
The damping characteristic measuring device in the embodiment further comprises a second fixing part 8, wherein the second fixing part 8 is arranged on the first fixing part 1; the second fixing portions 8 are disposed corresponding to the carrying portions 2, and the carrying portions 2 extend into the second fixing portions 8 and are detachably connected to the second fixing portions 8.
In the embodiment of the present application, the bearing part 2 and the second fixing part 8 are connected by using a screw thread, but in other examples, the bearing part 2 and the second fixing part 8 may also be connected by using other detachable manners. Before the vibration test is started, the bearing part 2 is screwed into the second fixing part 8, so that the bearing part 2 is connected with the second fixing part 8.
The damping characteristic measuring device in the embodiment further comprises a second fixing nut 9, wherein the second fixing nut 9 is sleeved on the bearing part 2 and is in threaded connection with the bearing part 2; the second fixing nut 9 is disposed between the second fixing portion 8 and the connecting portion 3, and is attached to the second fixing portion 8.
After the bearing part 2 is connected with the second fixing part 8, the second fixing nut 9 is sleeved on the bearing part 2, and the second fixing nut 9 is rotated from top to bottom until the second fixing nut 9 is attached to the second fixing part 8. The second fixing nut 9 that sets up has played the effect of strengthening bearing part 2 and being connected with second fixed part 8, has further guaranteed the normal development of experiment.
In this embodiment, the first fixing portion 1 is provided with a plurality of connecting holes for connecting the first fixing portion 1 and the vibration device.
In the embodiment of the present application, the first fixing portion 1 is connected to the vibration table through a bolt, and the bolt penetrates through the connecting hole and extends into the interior of the vibration table. The design enables the first fixing part 1 and the vibration table to be detachably connected, and improves the use diversity.
The specific using process of the damping characteristic measuring device is as follows: before measuring the damping characteristics of damping materials 13 to be measured with different sizes, firstly installing the first fixing part 1 on the surface of the vibration table through a bolt, and then screwing the bearing part 2 into the second fixing part 8 to realize the connection of the bearing part 2 and the second fixing part 8; and then screwing a second fixing nut 9 on the bearing part 2 until the second fixing nut 9 is attached to the second fixing part 8, and finally fixing the damping material 13 to be tested between the first clamping part 10 and the second clamping part 11 in a gluing mode and the like to realize the connection of the damping material 13 to be tested, the first clamping part 10 and the second clamping part 11.
The clamping assembly is connected with the first fixing part 1 through a connecting piece 12 arranged below a combined body of the clamping assembly and a damping material 13 to be tested, the approximate height of the combined body is observed visually, a first fixing nut 7 is screwed on the bearing part 2 to be used as the bottom of the connecting part 3 for positioning, and then the connecting part 3 is sleeved on the bearing part 2; after the connecting part 3 is attached to the first fixing nut 7, the elastic vibration part 4 is installed between the connecting parts 3, meanwhile, the connecting piece 12 connected with the first clamping part 10 penetrates through the elastic vibration part 4, and finally, the pressing part 6 is connected with the elastic vibration part 4 through a bolt.
In the process, the heights of the first fixing nut 7, the connecting part 3 and the elastic vibration part 4 are adjusted according to the height of the combined body, then the first fixing nut 7 is screwed into the bearing part 2 again, after the proper height of the combined body is determined again, the four first fixing nuts 7 are screwed, and finally the counterweight part 5 is connected with the connecting part 12 connected with the first clamping part 10.
In the vibration test process, sensors are arranged on the counterweight part 5 and the first fixing part 1 as measuring points; when the vibration table starts to work, the first fixing part 1 immediately starts to vibrate, and a sensor arranged on the first fixing part 1 starts to acquire vibration data of the vibration table; since the coupling member is connected to the weight portion 5 and the first fixing portion 1, the weight portion 5 also starts to vibrate immediately, the sensor disposed on the weight portion 5 starts to acquire vibration data of the weight portion 5, and meanwhile, since the damping material 13 to be measured is disposed between the first clamping portion 10 and the second clamping portion 11, the damping material 13 to be measured can attenuate the vibration of the weight portion 5, that is, the vibration data acquired by the sensor disposed on the weight portion 5 is the vibration data attenuated by the damping material 13 to be measured.
Through a control variable experiment, vibration data of the vibration table and the counterweight part 5 are respectively measured after the damping material 13 to be measured is added, the damping material 13 to be measured is not added, the area of the damping material 13 to be measured is changed, and after the two data are compared, the damping parameter of the damping material 13 to be measured can be calculated.
In summary, the damping characteristic measuring device provided in this embodiment has at least the following beneficial effects: compared with the prior art, the measuring device has the advantages that the measuring height between the elastic vibration part 4 and the first fixing part 1 can be flexibly changed according to damping materials 13 to be measured with different sizes, especially, the smaller damping materials 13 to be measured can be measured, and the effect of expanding the application range of the measuring device is achieved.
The present invention is not intended to be limited to the particular embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed.
Claims (10)
1. A damping characteristic measuring apparatus, characterized by comprising:
a first fixed part (1);
at least two bearing parts (2), the bearing parts (2) being mounted on the first fixing part (1);
the connecting parts (3) are arranged in one-to-one correspondence with the bearing parts (2), and the connecting parts (3) are movably mounted on the bearing parts (2) along the extension direction of the bearing parts (2);
a fixing assembly for fixing the connecting portion (3) to a predetermined position of the carrying portion (2);
the elastic vibration part (4), the elastic vibration part (4) is suspended and fixed between at least two connection parts (3);
a counterweight part (5), wherein the counterweight part (5) is arranged in the middle of the elastic vibration part (4);
the centre gripping subassembly, the centre gripping subassembly includes first clamping part (10) and second clamping part (11), first clamping part (10) with elastic vibration portion (4) are connected, second clamping part (11) with first fixed part (1) are connected, simultaneously first clamping part (10) with second clamping part (11) are connected through damping material (13) that await measuring.
2. The damping characteristic measuring device according to claim 1, wherein the elastic vibrating portion (4) and the connecting portion (3) are detachably connected.
3. The damping characteristic measuring device according to claim 1, characterized in that the fixing assembly comprises at least two first fixing nuts (7), the first fixing nuts (7) are sleeved on the bearing part (2) and are in threaded connection with the bearing part (2); the connecting part (3) is clamped between two adjacent first fixing nuts (7).
4. The damping characteristic measuring device according to claim 2, further comprising at least two pressing portions (6), wherein the pressing portions (6) are provided in one-to-one correspondence with the connecting portions (3), and the pressing portions (6) are detachably mounted on a side of the elastic vibrating portion (4) away from the connecting portions (3).
5. The damping characteristic measuring device according to claim 1, wherein the first clamping portion (10) and the second clamping portion (11) are distributed in a staggered manner up and down, one end of the first clamping portion (10) away from the second clamping portion (11) is connected to the weight portion (5), and one end of the second clamping portion (11) away from the first clamping portion (10) is connected to the first fixing portion (1).
6. The damping characteristic measuring device according to claim 5, wherein the clamp assembly further comprises two connecting members (12), one of the connecting members (12) being disposed at an end of the first clamp portion (10) remote from the second clamp portion (11) and being connected to the weight portion (5); the other connecting piece (12) is arranged at one end, far away from the first clamping part (10), of the second clamping part (11) and is connected with the first fixing part (1).
7. The damping characteristic measuring device according to claim 6, wherein the connecting member (12) is detachably connected to the weight portion (5); the connecting piece (12) is detachably connected with the first fixing part (1).
8. The damping characteristic measuring device according to claim 6, wherein the first fixing portion (1), the connecting member (12), and the weight portion (5) are coaxially arranged.
9. The damping characteristic measuring device according to claim 1, further comprising a second fixing portion (8), the second fixing portion (8) being provided on the first fixing portion (1); the second fixing parts (8) and the bearing parts (2) are arranged in a one-to-one correspondence mode, and the bearing parts (2) extend to the interior of the second fixing parts (8) and are detachably connected with the second fixing parts (8).
10. The damping characteristic measuring device according to claim 9, further comprising a second fixing nut (9), wherein the second fixing nut (9) is sleeved on the bearing part (2) and is in threaded connection with the bearing part (2); the second fixing nut (9) is arranged between the second fixing part (8) and the connecting part (3) and is attached to the second fixing part (8).
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