CN206650602U - Bluff body vortex-induced vibration energy collecting device with rough surface band - Google Patents
Bluff body vortex-induced vibration energy collecting device with rough surface band Download PDFInfo
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- CN206650602U CN206650602U CN201720353436.8U CN201720353436U CN206650602U CN 206650602 U CN206650602 U CN 206650602U CN 201720353436 U CN201720353436 U CN 201720353436U CN 206650602 U CN206650602 U CN 206650602U
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- bluff body
- piezoelectric patches
- rough
- collecting device
- vortex
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Abstract
The utility model provides a kind of bluff body vortex-induced vibration energy collecting device with rough surface band, it includes at least one wake flow oscillator generating means, at least one piezoelectric patches group and the energy collection circuit for connecting each piezoelectric patches group, each wake flow oscillator generating means is correspondingly arranged a piezoelectric patches group, wake flow oscillator generating means includes upper plate, lower shoe, bluff body and rough zone, bluff body is horizontally placed between upper plate and lower shoe, each between bluff body and upper plate, spring is each respectively connected between bluff body and lower shoe, two parallel rough zones are set on each bluff body, piezoelectric patches group is arranged on the rear of bluff body, length direction arrangement of each piezoelectric patches along bluff body in piezoelectric patches group.The bluff body vortex-induced vibration energy collecting device with rough surface band has the advantages of design science, reinforcing Oscillation Amplitude, generating capacity are lifted.
Description
Technical field
A kind of vortex-induced vibration energy collecting device is the utility model is related to, specifically, relate to a kind of thick with surface
The bluff body vortex-induced vibration energy collecting device of rough band.
Background technology
With the rapid development of the technologies such as micro- energy, MEMS, wireless sensor network, received using piezoelectricity conversion vibrational energy
Collect principle (PEH) and collect fluid mechanical energy as study hotspot in recent years.Piezoelectric vibration energy, which is collected, is used as a kind of effective ring
Border energy collection technology, receives domestic and international extensive concern, is mainly used in health monitoring, wireless sensor system, microminiature
The fields such as motor coupler part.Therefore, research piezoelectric vibration energy collection technique has broad application prospects and practical value.
The energy of flow can be converted into vibrational energy by vortex-induced vibration (VIV) phenomenon.It is strong that locking-up effect in vortex-induced vibration can be effectively increased vibration
Degree, so as to improve the efficiency of collection of energy, there is important research value.But currently for vortex-induced vibration energy collection technology
(VIVPEH) research is few, especially for flow field flow-mechanical oscillation-energized circuit (stream is electromechanical) multiple physical field coupled mode
Type is established and the research of method for solving is rarely reported.
Current to be related in the device of vortex-induced vibration generating, vibration is mostly not ideal enough, generating capacity deficiency.
In order to solve the problem present on, people are seeking a kind of preferable technical solution always.
Utility model content
The purpose of this utility model is in view of the shortcomings of the prior art, so as to provide a kind of design science, strengthen vibration width
Degree, generating capacity are able to the bluff body vortex-induced vibration energy collecting device with rough surface band lifted.
To achieve these goals, technical scheme is used by the utility model：It is a kind of blunt with rough surface band
Body vortex-induced vibration energy collecting device, including at least one wake flow oscillator generating means, at least one piezoelectric patches group and connection are each
The energy collection circuit of piezoelectric patches group, the rear of each wake flow oscillator generating means are correspondingly arranged a piezoelectric patches group, each tail
Stream oscillator generating means is set in a row.
Described on base, the wake flow oscillator generating means includes upper plate, lower shoe, bluff body and rough zone, the bluff body
Be horizontally placed between the upper plate and the lower shoe, each between the bluff body and the upper plate, each bluff body with
Be respectively connected with spring between the lower shoe, the front of each bluff body sets two parallel rough zones, two rough zones with
Be symmetrical arranged centered on horizontal plane where the bluff body axis, length direction of two rough zones along bluff body extend to it is described
Bluff body is isometric, and the piezoelectric patches group is arranged on the rear of the bluff body, and each piezoelectric patches in the piezoelectric patches group is along the bluff body
Length direction arrangement.
Described on base, the wake flow oscillator generating means includes upper plate, lower shoe, at least two bluff bodies and rough zone,
Each bluff body is horizontally placed between the upper plate and the lower shoe, and each bluff body is rearward sequentially arranged in parallel from front, often
Between the individual bluff body and the upper plate, each spring is respectively connected between the bluff body and the lower shoe, it is each described
The front of bluff body sets two parallel rough zones, and two rough zones are symmetrically set centered on the horizontal plane where the bluff body axis
Put, length direction of two rough zones along bluff body extends to isometric with the bluff body, and the piezoelectric patches group sets rear-end blunt
The rear of body, length direction arrangement of each piezoelectric patches along the bluff body in the piezoelectric patches group.
Described on base, the bluff body is cylinder, angle of attack square column, triangular prism or other polyhedral structures.
Described on base, the piezoelectric patches is PVDF piezoelectric patches.
Described on base, the piezoelectric patches is PZT piezoelectric patches.
The utility model has substantive distinguishing features and progress compared with the prior art, specifically, the utility model have with
Lower advantage：
1st, when blowing air over bluff body, bluff body rear can produce Karman vortex street, and when vortex-induced vibration is resonance form, vortex
Flowing is more violent, forms wake flow oscillator, now, piezoelectric patches is in the presence of wake flow oscillator, it may occur that is produced compared with strong vibration
Electric charge, and be collected.
2nd, the bluff body in each wake flow oscillator generating means can be multiple, wake flow oscillator generating means can also be it is multiple,
Array is formed, more complicated flow field is produced, further strengthens generating capacity.
3rd, rough zone symmetric arrays at an angle, it is therefore an objective to strengthen flow-disturbing effect, lift oscillation intensity.
4th, bluff body can be cylinder, angle of attack square column, triangular prism or other polyhedral structures, realize different degrees of vibration effect
Fruit, to meet the needs of different scenes.
5th, the selectable scope of piezoelectric patches is wide, low using difficulty.
Brief description of the drawings
Fig. 1 is the structural representation of device in the utility model embodiment 1.
Fig. 2 is bluff body and the top view of piezoelectric patches group relative position in the utility model embodiment 1.
Fig. 3 is the structural representation of device in the utility model embodiment 2.
Fig. 4 be the utility model band with without rough zone（PTC）The aquatic clean energy resource of vortex（VIVACE）System
The comparison diagram of collection of energy power.
In figure：1. upper plate；2. lower shoe；3. bluff body；4. rough zone；5. piezoelectric patches group；6. energy collection circuit；7. bullet
Spring.
Embodiment
Below by embodiment, the technical solution of the utility model is described in further detail.
Embodiment 1
As shown in Figure 1, Figure 2 and Figure 4, a kind of bluff body vortex-induced vibration energy collecting device with rough surface band, including
The energy collection circuit 6 of one wake flow oscillator generating means, a piezoelectric patches group 5 and each piezoelectric patches group 5 of connection, each wake flow oscillator
The rear of generating means is correspondingly arranged the piezoelectric patches group 5, and each wake flow oscillator generating means is set in a row.
The wake flow oscillator generating means includes upper plate 1, lower shoe 2, cylindrical bluff body 3 and rough zone 4, the bluff body
3 are horizontally placed between the upper plate 1 and the lower shoe 2, each between the bluff body 3 and the upper plate 1, each described blunt
Spring 7 is respectively connected between body 3 and the lower shoe 2, to form wake flow oscillator, the front of each bluff body 3 sets two
The parallel rough zone 4 of bar, two rough zones 4 are symmetrical arranged centered on the horizontal plane where the axis of the bluff body 3, and two coarse
Extended to 4 along the length direction of bluff body 3 isometric with the bluff body 3, the effect of rough zone 4 is to improve the vibration amplitude of bluff body,
Improve the vibration characteristics of bluff body.Wherein, rough zone 4 can be the object that tissue paper, sieve-like wire side, rib etc. have rough surface.
As shown in figure 4, display content be band with without rough zone（PTC）The aquatic clean energy resource of vortex（VIVACE）
System capacity collects the comparison diagram of power, the achievement in research that material has been delivered from those skilled in the art, can significantly see
Go out, the collection of energy power of the aquatic clean energy resource of the vortex with rough zone is stronger.Tied by changing cylinder bluff body surface
Structure, higher lift is produced in fluid winding flow, and can effectively extend cylinder vortex and synchronize scope.
The piezoelectric patches group 5 is arranged on the rear of the bluff body 3, and each piezoelectric patches in the piezoelectric patches group 5 is along described blunt
The length direction arrangement of body 3, the piezoelectric patches is PVDF piezoelectric patches.
When blowing air over bluff body 3, the rear of bluff body 3 can produce, and when vortex-induced vibration is resonance form, vortex motion is more
Acutely, wake flow oscillator is formed, now, piezoelectric patches is in the presence of wake flow oscillator, it may occur that produce electric charge compared with strong vibration, and by
Collect.
This generation mode has sustainability, it is not necessary to long term maintenance, is not required to change battery, realizes lasting generating energy
Power.
This or a kind of free of contamination new energy collection of energy pattern, collect the clean nature energy, will not to from
Right environment damages, almost nil compared to the traditional approach such as water power, thermoelectricity, nuclear power, pollution.
It is more prominent, it is densely arranged due to propeller group relative to traditional propeller generator machine group, grind
To study carefully and point out, it can change wind field, and therefore, natural environment can be damaged, and this destruction is due to change wind field flowing to cause,
The haze weather for being not excluded for the north is related to this.However, no propeller type energy of flow collector disclosed in the present application can avoid
Such issues that, really realize close to no pollution.
In concrete application, solar energy electroplax electricity generation module can be combined and used, reach the cloudy day, the energy that fine day can generate electricity
Power.
Piezoelectric patches connection energy collection circuit 6 partly belongs to routine techniques, does not involve the application content to be protected, therefore
Do not record deeply in this application, only describe wake flow oscillator generating means and the installation relation with piezoelectric patches group in detail.
Embodiment 2
As shown in figure 3, the present embodiment and the difference of embodiment 1 are：The wake flow oscillator generating means includes upper plate
1st, lower shoe 2, at least two cylindrical bluff bodies 3 and rough zone 4, each bluff body 3 are horizontally placed on the upper plate 1 and the bottom
Between plate 2, each bluff body 3 is rearward sequentially arranged in parallel from front, each between the bluff body 3 and the upper plate 1, Mei Gesuo
State and spring 7 is respectively connected between bluff body 3 and the lower shoe 2, the front of each bluff body 3 sets two parallel rough zones
4, two rough zones 4 are symmetrical arranged centered on the horizontal plane where the axis of bluff body 3, length of two rough zones 4 along bluff body 3
Direction extends to isometric with the bluff body 3, and the piezoelectric patches group 5 sets the rear of rear-end bluff body, in the piezoelectric patches group 5
Each piezoelectric patches along the bluff body 3 length direction arrangement, the piezoelectric patches is PZT piezoelectric patches.
Two or more bluff bodies 3 are included in wake flow oscillator generating means, produce complex flow field, Neng Goujin
One step strengthens vibrating effect, in addition, multigroup wake flow oscillator generating means lines up array, generating capacity is stronger.
In other embodiments, the bluff body is angle of attack square column or triangular prism.
Finally it should be noted that:Above example is only illustrating the technical solution of the utility model rather than it is limited
System；Although the utility model is described in detail with reference to preferred embodiment, those of ordinary skill in the art should
Understand：Specific embodiment of the present utility model can still be modified or some technical characteristics are equally replaced
Change；Without departing from the spirit of technical solutions of the utility model, it all should cover in the claimed technical scheme of the utility model
Among scope.
Claims (6)
- A kind of 1. bluff body vortex-induced vibration energy collecting device with rough surface band, it is characterised in that：It includes at least one The energy collection circuit of wake flow oscillator generating means, at least one piezoelectric patches group and each piezoelectric patches group of connection, each wake flow oscillator hair The rear of generating apparatus is correspondingly arranged a piezoelectric patches group, and each wake flow oscillator generating means is set in a row.
- 2. the bluff body vortex-induced vibration energy collecting device according to claim 1 with rough surface band, it is characterised in that： The wake flow oscillator generating means includes upper plate, lower shoe, bluff body and rough zone, the bluff body be horizontally placed on the upper plate and Between the lower shoe, each connect between the bluff body and the lower shoe between the bluff body and the upper plate, each Spring is connected to, the front of each bluff body sets two parallel rough zones, and two rough zones are with where the bluff body axis It is symmetrical arranged centered on horizontal plane, length direction of two rough zones along bluff body extends to, the piezoelectricity isometric with the bluff body Piece group is arranged on the rear of the bluff body, length direction arrangement of each piezoelectric patches in the piezoelectric patches group along the bluff body.
- 3. the bluff body vortex-induced vibration energy collecting device according to claim 1 with rough surface band, it is characterised in that： The wake flow oscillator generating means includes upper plate, lower shoe, at least two bluff bodies and rough zone, and each bluff body is horizontally placed on institute State between upper plate and the lower shoe, each bluff body is rearward sequentially arranged in parallel from front, each bluff body with it is described on Between top plate, each spring is respectively connected between the bluff body and the lower shoe, the front of each bluff body sets two Parallel rough zone, two rough zones are symmetrical arranged centered on the horizontal plane where the bluff body axis, and two rough zones are along blunt The length direction of body extends to, the rear of the piezoelectric patches group setting rear-end bluff body isometric with the bluff body, the piezoelectricity Length direction arrangement of each piezoelectric patches along the bluff body in piece group.
- 4. the bluff body vortex-induced vibration energy collecting device with rough surface band according to Claims 2 or 3, its feature exist In：The bluff body is cylinder, angle of attack square column, triangular prism or other polyhedral structures.
- 5. the bluff body vortex-induced vibration energy collecting device according to claim 4 with rough surface band, it is characterised in that： The piezoelectric patches is PVDF piezoelectric patches.
- 6. the bluff body vortex-induced vibration energy collecting device according to claim 4 with rough surface band, it is characterised in that： The piezoelectric patches is PZT piezoelectric patches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720353436.8U CN206650602U (en) | 2017-04-06 | 2017-04-06 | Bluff body vortex-induced vibration energy collecting device with rough surface band |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720353436.8U CN206650602U (en) | 2017-04-06 | 2017-04-06 | Bluff body vortex-induced vibration energy collecting device with rough surface band |
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| Publication Number | Publication Date |
|---|---|
| CN206650602U true CN206650602U (en) | 2017-11-17 |
Family
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|---|---|---|---|
| CN201720353436.8U Expired - Fee Related CN206650602U (en) | 2017-04-06 | 2017-04-06 | Bluff body vortex-induced vibration energy collecting device with rough surface band |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107634635A (en) * | 2017-09-20 | 2018-01-26 | 清华大学 | A kind of high-speed railway trackside wind-induced vibration energy recycle device |
| CN114285323A (en) * | 2021-12-31 | 2022-04-05 | 安徽工程大学 | Vibration energy collector device |
-
2017
- 2017-04-06 CN CN201720353436.8U patent/CN206650602U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107634635A (en) * | 2017-09-20 | 2018-01-26 | 清华大学 | A kind of high-speed railway trackside wind-induced vibration energy recycle device |
| CN114285323A (en) * | 2021-12-31 | 2022-04-05 | 安徽工程大学 | Vibration energy collector device |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171117 Termination date: 20190406 |
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| CF01 | Termination of patent right due to non-payment of annual fee |