CN202493626U

CN202493626U - Nested particle damper

Info

Publication number: CN202493626U
Application number: CN201220078025XU
Authority: CN
Inventors: 纪金豹; 李芳芳; 闫维明; 孙丽娟
Original assignee: Beijing University of Technology
Current assignee: Beijing University of Technology
Priority date: 2012-03-05
Filing date: 2012-03-05
Publication date: 2012-10-17
Anticipated expiration: 2022-03-05

Abstract

The utility model belongs to the technical field of vibration control, and relates to a nested particle damper, which comprises a shell 1, a damping medium 2, an inner particle 3, a particle 4 and a case 5, wherein the inner particle 3 is placed in the shell 1, and a cavity formed by the inner particle 3 and the shell 1 is filled with the damping medium 2; the particle 4 is formed by the shell 1, the damping medium 2 and the inner particle 3; and the particle 4 is placed in the case 5. According to the utility model, through adding the damping medium, viscous resistance between the particles is introduced, and the damp of the particle damper is increased, so that the particle has energy consumption action. The damping particle is simple and convenient to produce and easy to assemble, meanwhile, the particle damper can be independently taken as the damper to be directly connected with a component, and the particle damper can be taken as a basic unit of the damping particle to be placed in the case or the component to consume the energy.

Description

A kind of nesting type granule damper

Technical field

The utility model relates to a kind of granule damper, and particularly a kind of nesting type granule damper belongs to the vibration control field, is applicable to the damping control in fields such as machinery, Aero-Space and building structure.

Background technique

Thereby utilize attached member such as damping device to carry out energy-dissipating and shock-absorbing at present and guarantee that the method for agent structure Security under earthquake or wind such as shake at dynamic load function is in the ascendant.The use of granule damper does not receive temperature limitation basically; The location arrangements of granule damper is flexible, in vibration control, has good damping effect and development prospect.Its basic principle is: when structural vibration, utilize between the particle and particle and cavity wall between friction, energy dissipation is carried out in collision and dress changes, thereby reduce structural vibrations.

At the beginning of the eighties in last century, Popplewell etc. have invented flexible particle damping, with certain particle of flexible material parcel some and with it as in the structural cavities.The utility application (patent No. is 201020241597.6) of " a kind of flexible granule damper " of State Intellectual Property Office's notice of authorization, this damper comprise flexible material packaging body of processing and the particulate matter that is wrapped in the packaging body; Packaging body is to have the shoestring of cavity or have the tabular body of the cavity that a plurality of one-tenth faces arrange or have a plurality of blocks that become the three-dimensional cavity of arranging.Then State Intellectual Property Office's notice of authorization the utility application (patent No. is 201120051956.6) of " a kind of granule damper elementary cell and relevant granule damper "; This model utility provides a kind of granule damper elementary cell, includes the shell and the interior particulate matter of the cavity that is packaged in shell of cavity; The utility model also provides a kind of granule damper simultaneously, comprises the particulate matter in packaging body with cavity and the said cavity that is packaged in the said packaging body.

With regard to above-mentioned granule damper; The intergranular relative movement of damping is limited; Between the particle or the damping that produces of the frictional impact between particle and the cavity wall limited, the energy-dissipating and shock-absorbing effect also just is difficult to meet the demands, thereby increases the damping of granule damper; Improve the damping effect of granule damper, the development that promotes granule damper is had important effect in building structure.

Summary of the invention

Based on the problems referred to above, for increasing the damping of existing granule damper, the utility model proposes a kind of nesting type granule damper, and its design proposal is following:

A kind of nesting type granule damper includes shell 1, resisting medium 2, internal particle 3, particle 4, casing 5; Internal particle 3 places shell 1 inside, in the cavity that internal particle 3 and shell 1 are formed, fills resisting medium 2; Shell 1, resisting medium 2 and internal particle 3 are formed particle 4; Particle 4 places casing 5 or places each cavity of cellular structure.

The material of described resisting medium 2 is a silicone oil.

The material of shell 1 is flexible material or elastic material; Described flexible material comprises rubber, plastics; Described elastic material comprises steel.

Shell 1 is shaped as sphere or elliposoidal or tetrahedroid.

Described internal particle 3 is metallic material or nonmetallic material, and described metallic material comprises steel, lead, iron, aluminium, and described nonmetallic material comprise glass bead, stone.

Described casing 5 is connected with existing structure through bolt 6.

The quantity of the internal particle 3 in described each shell 1 is one or more than one, and is not limited only to one.

The utility model is filled resisting medium in container, introduced intergranular viscous resistance, and the damping of granule damper makes particle itself have the power consumption effect when having increased vibration.That this kind damping particle is made is simple and convenient, be prone to assembling, and this granule damper can directly be connected with member as damper separately simultaneously, also can be used as a kind of damping particle elementary cell, is used for consuming energy among placing casing or member.

Description of drawings

Fig. 1 is the elementary cell schematic representation of a kind of nesting type granule damper of the utility model proposition;

Fig. 2 is the schematic representation of a kind of nesting type granule damper of the utility model proposition;

Fig. 3 is the schematic representation of another nesting type granule damper of the utility model proposition.

The internal particle that Fig. 4 proposes for the utility model is the schematic representation of a kind of nesting type granule damper of majority

Among the figure 1, shell, 2, resisting medium, 3, internal particle, 4, particle, 5, casing, 6, bolt

Embodiment

Further specify below in conjunction with the enforcement of accompanying drawing the utility model:

Embodiment 1:

As depicted in figs. 1 and 2, the utility model provides a kind of nesting type granule damper, includes shell 1, resisting medium 2, internal particle 3, particle 4, casing 5; Internal particle 3 places shell 1 inside, in the cavity that internal particle 3 and shell 1 are formed, fills resisting medium 2; Shell 1, resisting medium 2 and internal particle 3 are formed particle 4; Particle 4 places casing 5; Shell 1 is the flexible material of rubber, plastics etc. or is the elastic material of steel etc.; Shell 1 is shaped as sphere or elliposoidal or tetrahedroid; Internal particle 3 is the metallic material of steel, lead, iron, aluminium etc. or the nonmetallic material of glass bead, stone etc.; The material of described resisting medium 2 is a silicone oil.Casing 5 is connected with existing structure through bolt 6.

Embodiment 2:

As shown in Figure 3; An embodiment of a kind of nesting type granule damper that provides according to the utility model; The particle 4 that to be made up of shell 1, resisting medium 2, internal particle 3 is as an elementary cell of damper; Be placed on respectively in the onesize cavity, form the honey-comb type granule damper, promptly place a nesting type granule damper in a cavity.When vibration took place, the internal particle 3 in the particle 4 moved in resisting medium 2, produced the viscous resistance dissipation energy; When bumping between the internal particle 3, the dissipative part energy; When internal particle 3 bumps with shell 1, also dissipation energy.Generally speaking, the increase of energy consume mechanism has improved the damping of nesting type particle damping, has increased its energy-dissipating and shock-absorbing effect.

Embodiment 3:

As shown in Figure 4; An embodiment of a kind of nesting type granule damper that provides according to the utility model; The particle 4 that to be made up of shell 1, resisting medium 2, a plurality of internal particle 3 is as an elementary cell of damper, and particle 4 homogeneous reactors of some are placed in the casing 5.Shell 1 is the flexible material of rubber, plastics etc. or is the elastic material of steel etc.; Shell 1 is shaped as sphere or elliposoidal or tetrahedroid; Internal particle 3 is the metallic material of steel, lead, iron, aluminium etc. or the nonmetallic material of glass bead, stone etc.; The material of described resisting medium 2 is a silicone oil.Casing 5 is connected with existing structure through bolt 6.When vibration took place, internal particle 3 moved in resisting medium 2 and produces viscous resistance, bumps between the internal particle 3, and internal particle 3 bumps with shell 1, caused particle 4 own with regard to consumed energy; Simultaneously between the particle 4 and also consumed energy of particle and casing 1 collision friction.These have all improved the damping effect of granule damper to a certain extent.

More than be 3 exemplary embodiments of the utility model, but the embodiment of the utility model is not limited thereto.

Claims

1. a nesting type granule damper includes shell (1), resisting medium (2), internal particle (3), particle (4), casing (5); It is characterized in that: internal particle (3) places shell (1) inside, in the cavity of internal particle (3) and shell (1) composition, fills resisting medium (2); Shell (1), resisting medium (2) and internal particle (3) are formed particle (4); Particle (4) places casing (5) or places each cavity of cellular structure.

2. a kind of nesting type granule damper as claimed in claim 1 is characterized in that: the material of shell (1) is flexible material or elastic material; Described flexible material comprises rubber, plastics; Described elastic material comprises steel.

3. a kind of nesting type granule damper as claimed in claim 1 is characterized in that: the material of described resisting medium (2) is a silicone oil.

4. a kind of nesting type granule damper as claimed in claim 1 is characterized in that: shell (1) is shaped as sphere or elliposoidal or tetrahedroid.

5. a kind of nesting type granule damper as claimed in claim 1 is characterized in that: described internal particle (3) is metallic material or nonmetallic material, and described metallic material comprises steel, lead, iron, aluminium, and described nonmetallic material comprise glass bead, stone.

6. a kind of nesting type granule damper as claimed in claim 1 is characterized in that: described casing (5) is connected with existing structure through bolt (6).

7. a kind of nesting type granule damper as claimed in claim 1 is characterized in that: the quantity of the internal particle (3) in described each shell (1) is one or more than one, and is not limited only to one.