CN202418383U - Cylindrical particle collision damper - Google Patents
Cylindrical particle collision damper Download PDFInfo
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- CN202418383U CN202418383U CN2011205219572U CN201120521957U CN202418383U CN 202418383 U CN202418383 U CN 202418383U CN 2011205219572 U CN2011205219572 U CN 2011205219572U CN 201120521957 U CN201120521957 U CN 201120521957U CN 202418383 U CN202418383 U CN 202418383U
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Abstract
The utility model relates to a cylindrical particle collision damper, which is provided with a cylindrical cavity and a cover, and is characterized in that four arc-shaped small steel plates are respectively arranged on an inner wall of the cylindrical cavity, the cylindrical cavity is divided into a middle space and four independent small spaces which have the same volume and are around the periphery of the middle space by the four arc-shaped small steel plates, and an impacter is arranged in the middle space. The damper disclosed by the utility model mainly solves the technical problem that internal spaces of the existing collision damper and the existing particle collision damper are not secondarily planned and designed. The internal structure of the cylindrical particle collision damper disclosed by the utility model is redesigned and replanned, so that the impacter and particle vibration damping agents can be better contacted and collided in the damper, energy of a system is consumed, and the purpose of vibration damping is better achieved.
Description
Technical field
The utility model relates to particles-impact damper, particularly a kind of cylindrical particle impact damper.
Background technique
Collisional damping belongs to the Passive Control technology of vibration, and it utilizes free quality (impactor) and the collision of main system in the vibration processes to control the response of main system.Because the impact damper simple structure, with low cost, easy to implement, non-powered, be adapted under the rugged environment using and effectiveness in vibration suppression good; Thereby, obtaining swift and violent development recently and in the vibration control in fields such as lathe, turbomachinery, robot, automobile, aircraft, space shuttle and tall building, obtaining using widely about the research of collisional damping.
The general structure of vibration damping as required of impact damper designs, and that the inner shape of damper can be divided into substantially is cylindrical, cubic type, irregular type etc.Impact damper, it produces momentum transfer through the collision between mass block and the main system and controls vibration.Result of study shows; Collisional damping can more effectively reduce the response amplitude of main system; But there is following shortcoming in it: (1) desirable opposite direction collisions will produce high acceleration peak value and strong velocity discontinuity, thereby produce higher noise, and cause the vessel surface damage; (2) restitution coefficient of collision is higher, and the kinetic energy rejection of impactor is little, thereby must take place in a series of residue collision processes significant amount of energy to be turned back to main system with container.
The impact damper of band particle vibration damping agent, be meant by airtight damper cavity with insert steel ball and a certain amount of impact damper of being formed as the subparticle material of vibration damping agent wherein as impactor.Its damping mechanism is that the particle vibration damping agent that utilizes the strong effect of impact of steel ball in the vibration processes to make to be clipped in therebetween produces plastic deformation, thereby for good and all consumes the vibrational energy of system.The collisional damping of band particle vibration damping agent broken through the conventional butt damping with momentum transfer and the narrow limitation of friction as damping mechanism, in collisional damping, having introduced first with the particle plastic deformation is the irreversible energy consumption mechanism of characteristic.
Existing impact damper and particles-impact damper are not all planned once more, are designed the damper inner space, so effectiveness in vibration suppression does not also reach best.
Summary of the invention
The purpose of the utility model is to provide a kind of cylindrical particle impact damper; Mainly solve existing existing impact damper and particles-impact damper all do not carry out time planning, design to the damper inner space technical problem; It designs, plans through the internal structure to the cylindrical particle impact damper; Make that impactor and particle vibration damping agent wherein can better contact-impacts in damping, thereby the energy of consumption systems better reaches the purpose of vibration damping.
For realizing above-mentioned purpose, the utility model is to realize like this.
A kind of cylindrical particle impact damper; It has circular cylindrical cavity and lid; It is characterized in that: this circular cylindrical cavity inwall is installed four little steel plates of arc respectively, and these four little steel plates of arc are divided into the little space of independence that central space four volumes peripheral with being centered around central space equate with circular cylindrical cavity; The described central space impactor of packing into.
Described cylindrical particle impact damper is characterized in that: described circular cylindrical cavity bottom has the fixed base of band screw.
The utility model is compared with existing mechanism, has following advantage.
Space in the particles-impact damper cavity of the utility model is fully utilized; Impactor and particle vibration damping agent can collide, rub in the cylindrical body cavity more fully; The particle vibration damping agent more is easy to generate plastic deformation; The contact frequency of particle vibration damping agent and impactor and cavity increases, and has guaranteed sufficient contact-impact, rubbing machine meeting, and the system that makes obtains better damping property.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the separation structure schematic representation of circular cylindrical cavity in the utility model.
Embodiment
See also Fig. 1,2, the utility model discloses a kind of cylindrical particle impact damper, the material of this damper is a low carbon steel.As shown in the figure: it has circular cylindrical cavity 1 and lid 3; This circular cylindrical cavity 1 inwall is installed four little steel plates 2 of arc respectively, and the little steel plate 2 of these four arcs is divided into central space 21 (volume is bigger) with circular cylindrical cavity 1 and is centered around the little space 22 of four independences of central space 21 peripheries (volume equates); Described central space 21 impactor of packing into.Described circular cylindrical cavity 1 bottom has the fixed base 4 of band screw 41.
Lid 3 in the utility model can and be tightened along the circular cylindrical cavity that is threaded into particles-impact damper 1.Particles-impact damper is fixed in the structure that needs vibration damping with the screw 41 of bolt through fixed base 4.When structure received dynamic excitation generation vibration, particles-impact damper produced damping function through the abundant collision of internal impact device and particle vibration damping agent, suppresses structural amplitude.
Being merely the preferred embodiment of the utility model in sum, is not the practical range that is used for limiting the utility model.Be that all equivalences of doing according to the content of the utility model claim change and modification, all should be the technological category of the utility model.
Claims (2)
1. cylindrical particle impact damper; It has circular cylindrical cavity (1) and lid (3); It is characterized in that: this circular cylindrical cavity (1) inwall is installed four little steel plates of arc (2) respectively, and these four little steel plates of arc (2) are divided into central space (21) with circular cylindrical cavity (1) and are centered around the little space of independence (22) that four peripheral volumes of central space (21) equate; Described central space (21) impactor of packing into.
2. cylindrical particle impact damper according to claim 1 is characterized in that: described circular cylindrical cavity (1) bottom has the fixed base (4) of band screw (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205219572U CN202418383U (en) | 2011-12-14 | 2011-12-14 | Cylindrical particle collision damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205219572U CN202418383U (en) | 2011-12-14 | 2011-12-14 | Cylindrical particle collision damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202418383U true CN202418383U (en) | 2012-09-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205219572U Expired - Fee Related CN202418383U (en) | 2011-12-14 | 2011-12-14 | Cylindrical particle collision damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202418383U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102661347A (en) * | 2012-05-10 | 2012-09-12 | 上海理工大学 | Impact damper |
| CN102853019A (en) * | 2012-10-09 | 2013-01-02 | 上海理工大学 | Cylindrical impact damper |
| CN103161235A (en) * | 2013-03-07 | 2013-06-19 | 同济大学 | Flexural type inhaul cable particle damper |
| CN103453063A (en) * | 2012-12-03 | 2013-12-18 | 上海理工大学 | Nested collision damper |
| CN105221620A (en) * | 2015-10-12 | 2016-01-06 | 上海理工大学 | Electromagnetic type flutter impact damper |
| CN106195088A (en) * | 2016-09-18 | 2016-12-07 | 厦门大学 | Multi-lumen shaft system granule damper |
| CN109296863A (en) * | 2018-10-25 | 2019-02-01 | 珠海格力电器股份有限公司 | Damping shock absorber and air conditioner |
| CN114233305A (en) * | 2021-11-02 | 2022-03-25 | 中铁隧道股份有限公司 | Shield tunneling machine capable of increasing particle damping |
-
2011
- 2011-12-14 CN CN2011205219572U patent/CN202418383U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102661347A (en) * | 2012-05-10 | 2012-09-12 | 上海理工大学 | Impact damper |
| CN102853019A (en) * | 2012-10-09 | 2013-01-02 | 上海理工大学 | Cylindrical impact damper |
| CN103453063A (en) * | 2012-12-03 | 2013-12-18 | 上海理工大学 | Nested collision damper |
| CN103453063B (en) * | 2012-12-03 | 2015-04-22 | 上海理工大学 | Nested collision damper |
| CN103161235A (en) * | 2013-03-07 | 2013-06-19 | 同济大学 | Flexural type inhaul cable particle damper |
| CN103161235B (en) * | 2013-03-07 | 2015-06-24 | 同济大学 | Flexural type inhaul cable particle damper |
| CN105221620A (en) * | 2015-10-12 | 2016-01-06 | 上海理工大学 | Electromagnetic type flutter impact damper |
| CN106195088A (en) * | 2016-09-18 | 2016-12-07 | 厦门大学 | Multi-lumen shaft system granule damper |
| CN109296863A (en) * | 2018-10-25 | 2019-02-01 | 珠海格力电器股份有限公司 | Damping shock absorber and air conditioner |
| CN114233305A (en) * | 2021-11-02 | 2022-03-25 | 中铁隧道股份有限公司 | Shield tunneling machine capable of increasing particle damping |
| CN114233305B (en) * | 2021-11-02 | 2024-01-02 | 中铁隧道股份有限公司 | Shield tunneling machine capable of increasing particle damping |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120905 Termination date: 20121214 |