CN2249919Y - Active and passive friction buffering activator - Google Patents
Active and passive friction buffering activator Download PDFInfo
- Publication number
- CN2249919Y CN2249919Y CN 95245329 CN95245329U CN2249919Y CN 2249919 Y CN2249919 Y CN 2249919Y CN 95245329 CN95245329 CN 95245329 CN 95245329 U CN95245329 U CN 95245329U CN 2249919 Y CN2249919 Y CN 2249919Y
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- CN
- China
- Prior art keywords
- friction
- piston rod
- piston
- cylinder
- utility
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
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- Vibration Prevention Devices (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The utility model relates to an activator used for the vibration control of building structures and mechanical structures, which comprises a friction cylinder, wherein, a friction piston and a piston rod are arranged in the friction cylinder; a flexible element which forms a pair of friction components with the piston rod is arranged on the middle side face of the friction cylinder; the flexible element is allocated with a pressure power (PZT) driving element; the size of the generated friction damping force can be regulated automatically. Thereby, the utility model can be applicable to the vibration control of a wide band buffering state with structure excitation disturbed and changed.
Description
The utility model relates to a kind of building structure, mechanical oscillatory structure control actuator.
At piston friction damping actuator technical elements, existing technology still is in the state of passive type, and promptly friction damping force is fixed, and is nonadjustable.Therefore, the variation of can not the commensurate structure exciting disturbing does not have the broadband damping property.
The purpose of this utility model is that the original passive type piston friction damping actuator of improvement is main, passive type frictional damping actuator, large and small can the adjustment automatically of friction damping force that actuator is produced.Thereby, can be applicable to the vibration control of structure exciting interference variations and broadband vibration damping situation.
Accompanying drawing is a structure principle chart of the present utility model.
Below in conjunction with accompanying drawing structural principle of the present utility model and operation principle are done Detailed explanation.
With reference to accompanying drawing, the utility model comprises a friction cylinder 1, friction dispose in the cylinder 1 friction piston 7 and with the piston rod 8 of friction piston 7 phase configuration, side, the middle part configuration one of friction cylinder 1 and the flexible member 3 of piston rod 8 formation friction pairs, flexible member 3 and a piezoelectric forces (PZT) driving element 6 phase configuration, piezoelectric forces (PZT) driving element 6 is configured in the bottom of adjusting jackscrew 5, and flexible member 3 is pressed on the piston rod 8 by a pretension plug 4.In addition, 9 is piston rod 8 and the extraneous earrings that is connected by shock-damping structure spare among the figure, the 2nd, and the friction ring on the friction piston 7 has axial hole 10 on pretension plug 4 and the adjustment jackscrew 5, is used to draw the power lead of piezoelectric forces (PZT) driving element 6.
Principle of work of the present utility model is: when structural member produces vibration, make between friction piston 7 and the friction cylinder 1, produce relative motion between flexible member 3 and the piston rod 8 by the connection earrings 9 on actuator friction cylinder 1 or the piston rod 8, because between piston 7 and the cylinder 1 that rubs, all have friction damping force between flexible member 3 and the piston rod 8, thereby consume the structural vibration energy, play the effect of attenuating structure vibration.Friction damping force between friction piston 7 and the friction cylinder 1 is fixed, and plays by the effect of arriving.Frictional resistance between flexible member 3 and the piston rod 8 is can be self-adjusting, plays active role.The automatic adjustment principle of friction damping force is to utilize the voltage/force characteristic of piezoelectric forces (PZT) driving element 6, voltage by automatic change PZT driving element 6, the power that piezoelectric forces (PZT) driving element 6 is acted on the flexible member 3 changes, thereby the friction damping force between flexible member 3 and the piston rod 8 is changed.
The utility model can produce fixing and variable two parts friction damping force, therefore can adapt to the control of exciting interference variations and wide-band vibration, and the high reliability advantage that keeps former passive piston friction damping actuator.
Claims (3)
1, main, passive frictional damping actuator, comprise a friction cylinder 1, friction dispose in the cylinder 1 friction piston 7 and with the piston rod 8 of friction piston 7 phase configuration, feature of the present utility model is, side, the middle part configuration one of friction cylinder 2 and piston rod 8 constitute the flexible member 3 of friction pairs.
2, according to the said frictional damping actuator of claim 1, it is characterized in that, said flexible member 3 and a piezoelectric forces (PZT) driving element 6 phase configuration, piezoelectric forces (PZT) driving element 6 is configured in the bottom of adjusting jackscrew 5.
According to the said frictional damping actuator of claim 1, it is characterized in that 3, said flexible member 3 is pressed on the piston rod 8 by a pretension plug 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95245329 CN2249919Y (en) | 1995-12-29 | 1995-12-29 | Active and passive friction buffering activator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95245329 CN2249919Y (en) | 1995-12-29 | 1995-12-29 | Active and passive friction buffering activator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2249919Y true CN2249919Y (en) | 1997-03-19 |
Family
ID=33885501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95245329 Expired - Fee Related CN2249919Y (en) | 1995-12-29 | 1995-12-29 | Active and passive friction buffering activator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2249919Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102954868A (en) * | 2011-08-24 | 2013-03-06 | 李昆达 | Impact assembly and light-weight impact unit for same |
-
1995
- 1995-12-29 CN CN 95245329 patent/CN2249919Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102954868A (en) * | 2011-08-24 | 2013-03-06 | 李昆达 | Impact assembly and light-weight impact unit for same |
| CN102954868B (en) * | 2011-08-24 | 2015-07-15 | 李昆达 | Impact assembly and light-weight impact unit for same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |