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Damping device and damping methdo

A vibration damping device and vibration absorber technology, which is applied in the direction of spring/shock absorber, vibration suppression adjustment, mechanical equipment, etc., can solve the problems of no effect and unable to reduce forced vibration, etc.

Inactive Publication Date: 2008-12-31
KOBE STEEL LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] In addition, as a practical problem, when there is no resonance but you want to reduce vibration, the dynamic vibration absorber is installed at the maximum amplitude position. Even if the amplitude at this position decreases, the amplitude at other positions often becomes the maximum amplitude position, and only the vibration distribution occurs. changes, and in most cases have no effect at all
[0012] In addition, the vibration in the driving device such as the engine or the electric motor not only has resonance, but also has the problem of forced vibration, which is different from resonance vibration, so even if the patented The methods described in Document 1 and Patent Document 2 cannot reduce the forced vibration

Method used

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  • Damping device and damping methdo
  • Damping device and damping methdo
  • Damping device and damping methdo

Examples

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no. 1 Embodiment approach

[0061] FIG. 1 is a schematic diagram showing an example of a vibration suppressing device 100 according to a first embodiment of the present invention.

[0062] As shown in FIG. 1 , the vibration suppression device 100 includes six dynamic vibration absorbers 310 , 320 , 330 , 340 , 350 and 410 , and the vibration suppression device 100 is installed on a box-shaped member 900 such as an engine or a motor.

[0063] As shown in FIG. 1 , on the surface 920 of the box-shaped member 900 of the vibration suppressing device 100, the dynamic vibration absorbers 310, 320, 330, 340, and 350 are provided, and on the surface 930 of the box-shaped member 900, the dynamic vibration absorber 410 is provided. .

[0064] As shown in FIG. 1, the dynamic vibration absorber 310 is comprised by the weight part 310a and the spring 310b. In addition, the dynamic vibration absorber 320 is composed of a hammer portion 320a and a spring 320b; the dynamic vibration absorber 330 is composed of a hammer ...

no. 2 Embodiment approach

[0073] FIG. 2 is a schematic diagram showing an example of a vibration suppressing device 200 according to a second embodiment of the present invention.

[0074] As shown in FIG. 2 , the vibration suppression device 200 includes six dynamic vibration absorbers 360 , 361 , 362 , 363 , 420 and 430 , and the vibration suppression device 200 is installed on a box-shaped member 900 such as an engine or a motor.

[0075] As shown in FIG. 2, on the surface 920 of the box-shaped member 900 of the vibration suppressing device 200, dynamic vibration absorbers 360, 361, 362, 363 are provided, and on the surface 930 of the box-shaped member 900, a dynamic vibration absorber 420 is provided. , 430.

[0076] As shown in FIG. 2, the dynamic vibration absorber 360 is comprised by the weight part 360a and the spring 360b. In addition, the dynamic vibration absorber 361 is composed of a hammer portion 361a and a spring 361b; the dynamic vibration absorber 362 is composed of a hammer portion 36...

no. 3 Embodiment approach

[0084] FIG. 3 is a schematic diagram showing an example of a vibration suppression device 300 according to a third embodiment of the present invention.

[0085] As shown in FIG. 3 , the vibration suppressing device 300 includes dynamic vibration absorbers 364 , 366 , and 440 , and the vibration suppressing device 300 is installed on a box-shaped member 900 such as an engine or an electric motor.

[0086] As shown in FIG. 3 , dynamic vibration absorbers 364 and 366 are provided on the surface 920 of the box-shaped member 900 of the vibration suppressing device 300 , and a dynamic vibration absorber 440 is provided on the surface 930 of the box-shaped member 900 .

[0087] Here, FIG. 4 is a schematic diagram showing the dynamic vibration reducers 364, 366, and 440 in FIG. 3 .

[0088] As shown in FIG. 4, the dynamic vibration absorber 364 is comprised by the hammer part 364a, 365a and the round bar 364b, 365b which has elastic force. Also, the dynamic vibration absorber 366 is ...

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Abstract

The invention provides a damping device capable of reducing vibration in driving devices, such as engines, motors and the like, and a damping method. In the damping device, forced vibration generated by box shaped members (900) (motors, gears, engines and the like) of a vibration suppression device (100) is reduced through dynamic vibration absorbers (270), (280), (390) of six different degrees of freedom. Three dynamic vibration absorbers (270), (280), (390) are arranged out of the same straight line relative to three-dimensional faces (910), (920), (930) of box shaped members (900).

Description

technical field [0001] The present invention relates to a vibration damping device and a vibration damping method for suppressing vibration of a driving device such as an engine or an electric motor. Background technique [0002] So far, it is known that the structure that generates forced vibration by a force of a certain vibration frequency is composed of a spring and a hammer, and the vibration can be suppressed by installing a non-damping dynamic vibration absorber whose resonance frequency is consistent with the vibration frequency (refer to Patent Document 1). [0003] In addition, Patent Document 1 discloses a method of controlling resonance piping as a technique related to installation of a dynamic vibration reducer. [0004] In the method for suppressing vibration of a piping system described in Patent Document 1, the vibration control is performed by applying the mode analysis method and the design method of the dynamic vibration absorber to the piping system so a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F15/00
CPCF16F15/1201F16F15/1203F16F15/13107
Inventor 山口善三杉本明男
Owner KOBE STEEL LTD
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