CN105221620A - Electromagnetic type flutter impact damper - Google Patents
Electromagnetic type flutter impact damper Download PDFInfo
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- CN105221620A CN105221620A CN201510655763.4A CN201510655763A CN105221620A CN 105221620 A CN105221620 A CN 105221620A CN 201510655763 A CN201510655763 A CN 201510655763A CN 105221620 A CN105221620 A CN 105221620A
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- impact damper
- impactor
- accommodating part
- accommodation section
- end cap
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Abstract
The present invention relates to a kind of electromagnetic type flutter impact damper, there is an impactor, an accommodating part, in described accommodation section, place impactor, electromagnetism end cap is equipped with at left and right two ends, described accommodation section, and described accommodation section upper and lower end is fixedly connected with accommodating part upper cover, accommodating part lower cover respectively.After the energising of electromagnetism end cap, two ends magnetic force differs in size, and utilizes magnetic deviation to make impactor and main system, in one-period, multiple impacts occur, thus strengthens momentum transfer and plastic deformation two kinds of energy consume mechanisms, significantly improves effectiveness in vibration suppression.The present invention is directed to impact damper and propose a kind of approach utilizing flutter to realize vibration damping, to realize the maximization of vibration damping usefulness, improve the stability of a system.Damper uses flexibly, is suitable for wide frequency range, can be widely used in various occasion.
Description
Technical field
The present invention relates to a kind of vibration control technology, be specifically related to a kind of electromagnetic type flutter impact damper utilizing the flutter mode that consumes energy to realize vibration damping.
Background technique
Impact damper belongs to the Passive Control technology of vibration, and it utilizes the collision of free quality (impactor) and main system in vibration processes to control the response of system.Impact damper simple structure, with low cost, easy to implement, without the need to external power, be applicable in the presence of a harsh environment use and effectiveness in vibration suppression is good.
Research about collisional damping obtains fast development in recent years and is widely used in vibration control field.Although impact damper is of a great variety, from damping mechanism, be mainly based upon on the basis of momentum transfer and the friction energy-dissipating produced in collision process; From theoretical study method, the model of monomer collisional damping has been continued to use or used for reference to most of impact damper, so monomer collisional damping is the basic model in this field.What monomer collisional damping adopted is the motor pattern of each cycle twice symmetrical impact, and the less effectiveness in vibration suppression of collision frequency is general.Particularly when frequency of utilization is not near point of resonance, be difficult to be formed and effectively collide so effectiveness in vibration suppression is undesirable.
Premenstruum (premenstrua) the results show, when restitution coefficient is lower, the frequency adaptation wide ranges of impact damper, namely has good performance within the scope of a very large band frequency.Investigate its motor pattern by numerical simulation, find to there is chatter phenomenon in the good movement locus of effectiveness in vibration suppression, namely flutter is likely the effective new way that impact damper obtains good effectiveness in vibration suppression.So-called flutter, refers to that own quality at short notice and the situation of colliding for even infinite time many times occurs between main system.
Summary of the invention
For many deficiencies that existing impact damper exists, on the basis of flutter damping mechanism, the present invention proposes a kind of electromagnetic type flutter impact damper, this damper is by being used to the flutter behavior in collision, the probability of the plastic deformation of momentum transfer and collision generation is increased by flutter, realize the maximization of vibration damping usefulness, improve the stability of a system simultaneously.
For achieving the above object, technological scheme of the present invention is: a kind of electromagnetic type flutter impact damper, there is an impactor, an accommodating part, impactor is placed in described accommodation section, electromagnetism end cap is equipped with at left and right two ends, described accommodation section, and described accommodation section upper and lower end is fixedly connected with accommodating part upper cover, accommodating part lower cover respectively.
Described accommodation section upper cover, lower cover inner and outer surface are protruding arc-shaped curved surface.Described impactor is the steel ball of diameter 15mm.Described electromagnetism end cap is the electromagnetism end cap of adjustable magnetic force size.
The invention has the beneficial effects as follows:
Electromagnetic type flutter impact damper of the present invention, by changing the energy consume mechanism of impact damper, chatter phenomenon in collision process is used, impactor is made at short notice and between main system multiple impacts to occur, in flutter process to collide for system vibration damping be each time all favourable, to give full play to impact damper momentum transfer and plastic deformation two kinds of energy consume mechanisms.The frequency usage wide ranges of this impact damper, applicable situation is extensive, can improve the stability of a system simultaneously.
This electromagnetic type flutter impact damper structure is simple, can also according to actual conditions need change its shape, electromagnetism end cap magnetic force size and vibration damping usefulness, mass production can be carried out to be applied to practical matter, its structure is simple, easy accessibility, uses flexibly, can be widely applied to the working environment of various complexity.
Accompanying drawing explanation
Fig. 1 is electromagnetic type flutter impact damper of the present invention structural representation in an embodiment.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the invention will be further described.
As shown in Figure 1, a kind of electromagnetic type flutter impact damper, mainly comprises: impactor 2; Accommodating part 5, accommodating part upper cover 1, accommodating part lower cover 4, electromagnetism end cap 3.
Place impactor 2 in accommodating part 5, electromagnetism end cap 3 is equipped with at left and right two ends, accommodating part, and accommodating part upper and lower end is fixedly connected with accommodating part upper cover 1, accommodating part lower cover 4 respectively.
Impactor 2 directly can select the steel ball of diameter about 15mm, by accommodating part upper and lower cover 1,4 cars go out screw thread, and by upper and lower cover 1,4 are connected by bolt and nut, the inner and outer surface of accommodating part upper and lower cover Isosorbide-5-Nitrae is all processed into smooth protrusion arc curved surface, impactor and edge, accommodating part can be avoided to produce to collide and affect effectiveness in vibration suppression.At two ends, accommodating part, electromagnetism end cap is installed, can be fixed by screw thread or keyway.After installation, the electromagnetism end cap at two ends is energized.In actual use, behind the size determining damper and position, by devices such as welding or draw-in grooves damper can be connected to and need in the machinery of vibration damping.
Control electromagnetism end cap 3 two ends magnetic force after energising to differ in size, thus make impactor with main system complete first time collision rift owing to being subject to the magnetic deviation effect of electromagnetism end cap, following meeting and accommodating part one side end cap occur a series ofly to chase after the process of touching, and thisly chase after that to touch be main system be the process that free quality (i.e. impactor) inputs energy, by momentum transfer, energy is transferred to freely qualitatively from main system, thus greatly reduce the momentum of main system.The plastic deformation occurred in collision process also for good and all consumes the kinetic energy of system, substantially increases the stability of a system.
This electromagnetic type flutter impact damper involved in the present invention by regulating the magnetic force size of electromagnetism end cap, can touch number of times and intensity to control impactor and chasing after of main system in flutter process, reaching the requirement of different operating environment for effectiveness in vibration suppression.Be far longer than the collision process increase power consumption of twice simultaneously by one-period, be conducive to the maximization realizing vibration damping usefulness.
Effect of the present invention and effect specify;
The electromagnetic type flutter impact damper that the present invention relates to.By changing the energy consume mechanism of impact damper, the electromagnetism end cap at logical two ends causes flutter process.In flutter process, main system and free quality repeatedly chases after to touch and consumes except part energy except by restitution coefficient, also by momentum transfer, energy is transferred on impactor from main system, also the effect of vibration damping is served, and impactor is accelerated, be also favourable for collisional quenching next time.If the non-resilient proportion in collision is comparatively large, the stability of a system also will improve thereupon.This damper structure and electromagnetism end cap magnetic force size can make a change according to actual conditions, and it is easy for installation, use flexibly, are suitable for wide frequency range, make this damper can be widely used in various occasion.
Claims (4)
1. an electromagnetic type flutter impact damper, there is an impactor (2), an accommodating part (5), it is characterized in that: in described accommodation section (5), place impactor (2), electromagnetism end cap (3) is equipped with at described accommodation section (5) left and right two ends, and described accommodation section (5) upper and lower end is fixedly connected with accommodating part upper cover (1), accommodating part lower cover (4) respectively.
2. electromagnetic type flutter impact damper according to claim 1, is characterized in that: described accommodation section upper and lower cover (Isosorbide-5-Nitrae) inner and outer surface is protruding arc-shaped curved surface.
3. electromagnetic type flutter impact damper according to claim 1, is characterized in that: the steel ball that described impactor (2) is diameter 15mm.
4. electromagnetic type flutter impact damper according to claim 1, is characterized in that: the electromagnetism end cap that described electromagnetism end cap (3) is adjustable magnetic force size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510655763.4A CN105221620A (en) | 2015-10-12 | 2015-10-12 | Electromagnetic type flutter impact damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510655763.4A CN105221620A (en) | 2015-10-12 | 2015-10-12 | Electromagnetic type flutter impact damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105221620A true CN105221620A (en) | 2016-01-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510655763.4A Pending CN105221620A (en) | 2015-10-12 | 2015-10-12 | Electromagnetic type flutter impact damper |
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| Country | Link |
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| CN (1) | CN105221620A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105736619A (en) * | 2016-05-12 | 2016-07-06 | 湖南城市学院 | Automatic three-dimensional adjustable absorber |
| CN108756008A (en) * | 2018-07-04 | 2018-11-06 | 武汉科技大学 | A kind of electromagnetism-collision composite buffer |
| CN108757817A (en) * | 2018-06-20 | 2018-11-06 | 上海理工大学 | A kind of improved electromagnetic type flutter impact damper |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3615070A1 (en) * | 1986-05-03 | 1987-10-01 | Daimler Benz Ag | Vibration system |
| JP2008281141A (en) * | 2007-05-11 | 2008-11-20 | Shinko Electric Co Ltd | Electromagnetic brake and electromagnetic clutch |
| CN101576138A (en) * | 2009-06-11 | 2009-11-11 | 上海理工大学 | Particles-impact damper with elastic support |
| CN202418383U (en) * | 2011-12-14 | 2012-09-05 | 上海理工大学 | Cylindrical particle collision damper |
| CN103453063A (en) * | 2012-12-03 | 2013-12-18 | 上海理工大学 | Nested collision damper |
| CN204493552U (en) * | 2015-01-15 | 2015-07-22 | 上海理工大学 | Magnetic impact damper |
-
2015
- 2015-10-12 CN CN201510655763.4A patent/CN105221620A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3615070A1 (en) * | 1986-05-03 | 1987-10-01 | Daimler Benz Ag | Vibration system |
| JP2008281141A (en) * | 2007-05-11 | 2008-11-20 | Shinko Electric Co Ltd | Electromagnetic brake and electromagnetic clutch |
| CN101576138A (en) * | 2009-06-11 | 2009-11-11 | 上海理工大学 | Particles-impact damper with elastic support |
| CN202418383U (en) * | 2011-12-14 | 2012-09-05 | 上海理工大学 | Cylindrical particle collision damper |
| CN103453063A (en) * | 2012-12-03 | 2013-12-18 | 上海理工大学 | Nested collision damper |
| CN204493552U (en) * | 2015-01-15 | 2015-07-22 | 上海理工大学 | Magnetic impact damper |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105736619A (en) * | 2016-05-12 | 2016-07-06 | 湖南城市学院 | Automatic three-dimensional adjustable absorber |
| CN105736619B (en) * | 2016-05-12 | 2018-01-23 | 湖南城市学院 | A kind of three-dimensional automatic adjustable shock absorber |
| CN108757817A (en) * | 2018-06-20 | 2018-11-06 | 上海理工大学 | A kind of improved electromagnetic type flutter impact damper |
| CN108756008A (en) * | 2018-07-04 | 2018-11-06 | 武汉科技大学 | A kind of electromagnetism-collision composite buffer |
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Application publication date: 20160106 |
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