CN203339924U - Power generation and passive control system of vibration plate girder structure - Google Patents
Power generation and passive control system of vibration plate girder structure Download PDFInfo
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- CN203339924U CN203339924U CN2013203059807U CN201320305980U CN203339924U CN 203339924 U CN203339924 U CN 203339924U CN 2013203059807 U CN2013203059807 U CN 2013203059807U CN 201320305980 U CN201320305980 U CN 201320305980U CN 203339924 U CN203339924 U CN 203339924U
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Abstract
The utility model discloses a power generation and passive control system of a vibration plate girder structure. The power generation and passive control system comprises a mechanical portion and a circuit portion. The mechanical portion comprises a plate girder structure, two permanent magnets and a wall prepared from a non ferromagnetic material, wherein one end of the plate girder structure is fixedly arranged in the wall, and the other end is hung in the air, two permanent magnets are parallelly and symmetrically arranged in the wall at the upper and lower sides of the plate girder struction, and the polarities of the two permanent magnets are opposite. The circuit portion comprises two electromagnetic solenoidal inductors with soft iron cores are symmetrically arranged at the upper and lower sides of the plate girder structure outside the wall close to the permanent magnets, the center lines of the solenoidal inductors are respectively conllinear with the corresponding permanent magnets at the same side, the two electromagnetic solenoidal inductors with soft iron cores are in series connection and then form a closed circuit with a load circuit. Power is generated employing vibration and electromagnetic induction, the vibration of the plate girder structure is controlled, and power is supplied for vehicle lamps, charging cells and other electric apparatuses.
Description
Technical field
The utility model belongs to mechanical oscillation and noise control technique field, relates in particular to a kind of generating and passive control system of oscillating plate girder construction.
Background technology
In the last few years, along with falling sharply of fossil energy and increasing the weight of of environmental pollution, people improve constantly for the development interest of new forms of energy, and particularly the research for the novel environment friendly supply power mode deepens continuously, and new energy acquisition technology is one of the most promising method substituted traditional supply power mode.Vibration extensively is present in the mechanical system under various operating modes, such as aircraft such as the ground traffic toolses such as automobile, train, steamer and aircraft, rocket, satellites, strong vibration not only can affect accuracy and the stability of instrument and meter work, also can be because of the life-span of fatigue rupture shortening structure when serious, perhaps because of resonance, damage structure, simultaneously, the noise produced due to vibration not only causes the pollution of environment, goes back entail dangers to operating personnel's physical and mental health.Therefore, vibrating power-generation and vibration control system have higher researching value and wide application prospect, and the research report for vibration control is a lot of at present, but still has the following disadvantages:
1) traditional vibration control is divided into Passive Control and two kinds of methods of ACTIVE CONTROL, and Passive Control is mainly to adopt damping structure that vibrational energy is transformed into to thermal energy consumption to dissipate, and causes to a certain extent the wasting of resources.
2) ACTIVE CONTROL, owing to having used the equipment such as transducer, controller, actuator, is not only utilized the energy of vibration vibration source own, but also will be consumed a large amount of electric energy.
The utility model content
The purpose of this utility model is for overcoming above-mentioned the deficiencies in the prior art, a kind of generating and passive control system of oscillating plate girder construction are provided, it utilizes vibration and electromagnetic induction principle to generate electricity, and the vibration of control board girder construction simultaneously, can be for mini electrical equipments such as vehicle-mounted LED lamp, rechargeable batteries for electric energy.
For achieving the above object, the utility model adopts following technical proposals:
A kind of generating of oscillating plate girder construction and passive control system, comprise mechanical part and circuit part, described mechanical part comprises slab and girder, two permanent magnets and a wall of being made by the nonferromagnetic material, described slab and girder one end is fixed in described wall, the other end is unsettled, two permanent magnet Parallel Symmetrics are arranged in the described wall of slab and girder upper and lower sides, and described two permanent magnet polarities are contrary; Described circuit part comprises two coils of the o with soft iron core, described two are installed on the slab and girder upper and lower sides near the described wall outside of permanent magnet with soft iron core o coil symmetry, and the center line of the described coil permanent magnet centerline collineation corresponding with the same side; Described two band soft iron core o coils are connected afterwards and load circuit connects to form a closed-loop path.
Described band soft iron core o coil is fixed on described slab and girder.
A kind of generating of oscillating plate girder construction and passive control system, comprise mechanical part and circuit part, described mechanical part comprises slab and girder, two permanent magnets and two walls of being made by the nonferromagnetic material, two described walls be arranged in parallel, described slab and girder one end is fixed in one of them described wall, the other end is unsettled, and two permanent magnet Parallel Symmetrics are arranged in described another wall of slab and girder upper and lower sides, and described two permanent magnet polarities are contrary; Described circuit part comprises two coils of the o with soft iron core, the described upper and lower sides that is symmetricly set in respectively the slab and girder free end with soft iron core o coil, and the center line of the described coil permanent magnet centerline collineation corresponding with the same side; Described two band soft iron core o coils are connected afterwards and load circuit connects to form a closed-loop path, to guarantee producing induced current in loop.
Described band soft iron core o coil is installed on slab and girder, and slab and girder is fixed on the nonferromagnetic material and makes on wall.
Described load circuit comprises the bridge-type filter rectifier, shunt load after the bridge-type filter rectifier; Described bridge-type filter rectifier comprises and the direct-connected bridge rectifier of described coil, an electric capacity in parallel after bridge rectifier.
Described permanent magnet adopts bar shaped rare-earth permanent magnet (as neodymium boron permanent magnet), and permanent magnet one end forms the N utmost point, and the other end forms the S utmost point.
Described band soft iron core o coil is entwined with enamelled wire, and there is soft iron core centre, and the enamelled wire winding direction of two o coils is consistent.
Described load is LED lamp, rechargeable battery or other power consumption equipment.
Described slab and girder is the object of vibration.
The utility model provides two kinds of technical schemes, and the first all is arranged on same wall with slab and girder and the permanent magnet of soft iron core o coil, and coil centerline and permanent magnet centerline collineation; It two is that slab and girder with soft iron core o coil is arranged on the wall of a side, and permanent magnet is arranged on the opposite side wall, same coil centerline and permanent magnet centerline collineation.
Operation principle of the present utility model: electromagnetic induction phenomenon refers to the conductor be placed in variation magnetic field, can produce electromotive force, this electromotive force is called induced electromotive force or induced electromotive force, if this conductor is closed into to a loop, this electromotive force can order about electronics and flows, and forms induced current (or induced current).In fact, the part of circuit is when doing cutting magnetic line movement, this part the interior free electron that is equivalent to circuit is done not moving along magnetic line of force direction in magnetic field, therefore free electron can be moved by the conductor interior orientation that acts on of Lorentz force, if being in closed-loop path, this part of circuit will form induced current, if not closed-loop path, the charge generation induced electromotive force will be gathered in two ends; If closed-loop path, be that electrified wire is in magnetic field, also can be subject to the effect of Ampere force, the action effect of this power always hinders the motion of conductor cutting magnetic force lines.
The utility model utilization is fixedly installed in the strip permanent magnet that the nonferromagnetic material makes on wall and produces invariable magnetic field, band soft iron core o coil is installed on slab and girder and with the permanent magnet center line and aligns, when slab and girder vibrates, the band moving winding vibrates together, the winding wire cutting magnetic line produces induced electromotive force, and coil and load circuit (electric light or storage battery) form closed-loop path, and then generation induced current, drive load circuit works, the operation principle of the utility model generating that Here it is.
When the slab and girder flexural vibrations, electrified wire on coil can be subject to the effect of Ampere force in the formed magnetic field of strip permanent magnet, according to Lenz's law, faradic effect is always revolted the reason that causes it, the magnetic field force (Ampere force) that namely induced current on motion conduct is subject to is always revolted the motion of (or obstruction) conductor, induced current in coil can make again it produce magnetic field, when coil and permanent magnet near the time like pole can produce repulsive force, when coil and permanent magnet away from the time opposite pole can produce attraction, will form like this (power) moment of flexure with oscillating plate girder construction opposite direction, the flexural vibrations of hampering plate girder construction, the principle of Here it is the utility model passive vibration control.
In the utility model, permanent magnet adopts rare-earth permanent magnet, and rare earth neodymium boron permanent magnet is the strongest permanent magnet of current magnet performance, its mechanical property ratio samarium cobalt permanent magnet body and Al-Ni-Co permanent magnet are all good, be easier to the needed shape of processing cost utility model, in the utility model, permanent magnet is processed into to bar shaped, forms the N utmost point at permanent magnet one end like this, the other end forms the S utmost point.
Body of wall is to be made by non-magnetic nonferromugnetic material, prevents that permanent magnet and materials for wall from having the confined bed magnetic loop of one's own.
Coil is band soft iron core o coil, with enamelled wire, be entwined, there is soft iron core centre, for the efficiency that improves generating and the effect of passive vibration control, the number of turn of coil should be many as much as possible, and the enamelled wire winding direction of two o coils is consistent.
Rectification circuit adopts bridge rectifier, by 4 in twos the diodes of docking form bridge circuit, bridge rectifier is the most frequently used circuit that utilizes the unidirectional general character of diode to carry out rectification.Just half part of input sine wave is two diode current flows, obtains positive output; During negative half part of input sine wave, another two diode current flows, because these two diodes are reversal connections, so output or sinusoidal wave just half part.Therefore, the utility model utilizes this specific character of this circuit, just makes the electrical current direction of coupled filter circuit and load circuit constant, so that filter circuit is transformed to direct current by it, improves the utilization ratio of electric energy.
Filter circuit adopts capacitor filter, a capacitor in parallel after bridge rectifier, its principle is terminal voltage acutely transition when circuit state changes of capacitor, the one direction cycle variable-current of bridge rectifier output is changed into to amplitude and change comparatively smooth direct current.
Load can be LED lamp, rechargeable battery or other power consumption equipment, for illumination or charging, very convenient and energy-conserving and environment-protective.
Up-down vibration due to slab and girder, induced current in the utility model is size variation, from the induced current that flows out with soft iron core o coil after bridge rectifier, become the electric current that the one direction cycle changes, after capacitor filtering, induced current becomes the direct current of near flat, can be directly electric light, rechargeable battery or the power supply of other power consumption equipment, and this is the process of utilizing of the utility model generating and electric energy.
Just reached the generating of oscillating plate girder construction and the purpose of passive vibration control by said process like this, not only effectively controlled the vibration of mechanical structure, but also be electric energy by the Conversion of Energy of vibration, economic environmental protection and energy saving.
The beneficial effects of the utility model:
1, the utility model combines vibrating power-generation and passive vibration control together, utilize vibration and electromagnetic induction principle to come the vibration of control board girder construction generating simultaneously, this equipment can be arranged in the plant equipment of vibration generation, as automobile, train etc., reduce vibration equipment, also can be the mini electrical equipment power supplies such as vehicle-mounted LED lamp, rechargeable battery.
2, the utility model provides two kinds of technical schemes, and scheme one is slab and girder, is arranged on the wall that same nonferromagnetic material makes with soft iron core o coil and permanent magnet, and coil centerline and permanent magnet centerline collineation; Scheme two is slab and girders and is arranged on the wall that the nonferromagnetic material of a side makes with soft iron core o coil, and permanent magnet is arranged on the wall that opposite side nonferromagnetic material makes, same coil centerline and permanent magnet centerline collineation, scheme two is than the advantage of scheme one, be arranged on the end of slab and girder with soft iron core o coil, the displacement maximum of end during the slab and girder vibration, can form larger electric current and larger damping force or damping torque, can make the vibration of slab and girder comparatively fast decay.
3, adopt magnet control to produce larger active force to slab and girder, so the utility model have good vibration control effect for the slab and girder of high rigidity.
4, adopt bridge rectifier filter circuit, change the induced current of sinusoidal variations into direct current, can directly power for power consumption equipment.
The accompanying drawing explanation
Fig. 1 the utility model embodiment 1 structural representation;
Fig. 2 the utility model embodiment 2 structural representations;
In Fig. 3 embodiment 1, slab and girder is bent upwards the principle (in figure, arrow is the sense of current) of vibration control and generating;
In Fig. 4 embodiment 1, slab and girder is bent downwardly the principle (in figure, arrow is the sense of current) of vibration control and generating;
In Fig. 5 embodiment 2, slab and girder is bent upwards the principle (in figure, arrow is the sense of current) of vibration control and generating;
In Fig. 6 embodiment 2, slab and girder is bent downwardly the principle (in figure, arrow is the sense of current) of vibration control and generating;
Fig. 7 bridge rectifier filter circuit (in figure, ui is band soft iron core o coil output voltage, the voltage that uc is the capacitor C two ends, the output voltage that uo is native system);
Fig. 8 is the o output voltage waveforms;
Fig. 9 is the bridge rectifier output voltage waveforms;
Figure 10 is the voltage oscillogram (in figure, M is the voltage max point, and curve mn is the decline curve of capacitor C charging voltage Uc) after capacitor filter;
In figure: 1. the wall that the nonferromagnetic material is made, 2. strip permanent magnet, 3. be with soft iron core o coil, 4. wire, 5. slab and girder, 6. diode, 7. electric capacity, 8. load (can be LED lamp, rechargeable battery or other power consumption equipment), A, B are respectively the numbering of two permanent magnets, C, D are respectively two numberings with soft iron core o coil, and D1, D2, D3, D4 are respectively four diode numberings of bridge rectifier filter circuit, and N, S are respectively two polarity of magnet.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Embodiment 1:
A kind of generating and passive control system of the oscillating plate girder construction based on permanent magnet, as shown in Figure 1, comprise mechanical part and circuit part.Wherein, mechanical part comprises wall 1, slab and girder 5, the strip permanent magnet 2 that the nonferromagnetic material is made, and circuit part comprises band soft iron core o coil 3, bridge rectifier, capacitive filters, load (can be LED lamp, rechargeable battery or other mini electrical equipment) 8 and wire 4.Described wall is made by the nonferromagnetic material; Described slab and girder 5 is the object of vibration; Described strip permanent magnet 2 is divided into two of A, B, on the wall 1 that the symmetrical nonferromagnetic material that is installed on slab and girder 5 upper and lower sides is made respectively; Described band soft iron core o coil 3 is divided into two of C, D, two are installed on slab and girder 5 upper and lower sides near the described wall outside of permanent magnet with soft iron core o coil 3 symmetries, and coil centerline aligns with the strip permanent magnet center line of the same side, wherein, slab and girder 5, with soft iron core o coil 3 and permanent magnet, be arranged on the wall 1 that same nonferromagnetic material makes; Described bridge rectifier directly is connected with coil, and after bridge rectifier, an electric capacity 7 in parallel, form the bridge-type filter rectifier jointly; After described load 8 is directly parallel in the bridge-type filter rectifier; Described band soft iron core o coil 3, bridge-type filter rectifier and load 8 form a closed-loop path, to guarantee producing induced current in loop.
Strip permanent magnet 2 adopts rare-earth permanent magnet, use A, two permanent magnets of B in the utility model, be installed on respectively on the wall that the nonferromagnetic material of the upper and lower both sides of slab and girder makes and align with band soft iron core o coil centerline, the strip permanent magnet A left end be installed on the wall that the nonferromagnetic material makes is the S utmost point, right-hand member is the N utmost point, strip permanent magnet B left end is the N utmost point, and right-hand member is the S utmost point, as shown in Figure 1; The purpose of above-mentioned such installation is in order to make permanent magnet A and permanent magnet B form the magnetic pole loop; certainly the magnetic pole installation direction of permanent magnet also can be from above-mentioned different; the direction of winding of o coil also can be done corresponding variation; to guarantee the induced current same-phase with soft iron core o coil C and D; affiliated association area researcher should be understood that this is also within protection range of the present utility model.
Coil is band soft iron core o coil, with enamelled wire, is entwined, and for the efficiency that improves generating and the effect of passive vibration control, the number of turn of coil should be many as much as possible, and the enamelled wire winding direction of two o coils is consistent.The utility model is used C, two band soft iron core o coils of D, be installed on respectively on the support of the upper and lower both sides of slab and girder and center line aligns with permanent magnet, slab and girder and permanent magnet are installed on the wall that same nonferromagnetic material makes, be installed on the end of slab and girder near permanent magnet with soft iron core o coil, and take the plate-girder center line as symmetrical;
Rectification circuit adopts bridge rectifier, by 4 in twos the diodes 6 of docking form bridge circuit, bridge rectifier is the most frequently used circuit that utilizes the unidirectional general character of diode 6 to carry out rectification.The upper and lower two ends of bridge rectifier are tape splicing soft iron core o coil C and D respectively, the follow-up filter circuit of left and right two termination, when slab and girder is bent upwards vibration, inductive current direction as shown in Figure 3, diode pair D1, D4 add forward voltage, Dl, D4 conducting, diode pair D2, D3 add reverse voltage, D2, D3 cut-off, just by band soft iron core o coil C, diode D1, load circuit, diode D4 and coil D, form closed-loop path in circuit, by induced electromotive force, form induced current; When slab and girder is bent downwardly vibration, inductive current direction as shown in Figure 4, diode pair D2, D3 add forward voltage, D2, D3 conducting, diode pair D1, D4 add reverse voltage, D1, D4 cut-off, band soft iron core o coil D, diode D2, load circuit, diode D3 and coil C form closed-loop path, by induced electromotive force, form induced current.So repeat down, result just obtains induced voltage as shown in Figure 8 at the input of bridge rectifier Fig. 7, at the output of bridge rectifier Fig. 7, just obtains the full-wave rectification electric current of non-filtered as shown in Figure 9.
Filter circuit adopts capacitor filter, a capacitor in parallel after bridge rectifier, as shown in Figure 7, its principle is that the terminal voltage of capacitor can not transition when circuit state changes, the one direction cycle variable-current of bridge rectifier output is changed into to amplitude and change comparatively smooth direct current, result as shown in figure 10.When the bridge rectifier conducting, power supply is to load circuit on the one hand, capacitor C is charged simultaneously, in the situation that ignore the diode forward pressure drop, charging voltage Uc is consistent with the sinusoidal voltage Ui of rising, as shown in figure 10, charging voltage Uc and supply power voltage Ui reach maximum at the M point simultaneously, then charging voltage Uc and supply power voltage Ui start to descend, supply power voltage Ui descends sinusoidally, when Ui<Uc, the diode of bridge rectifier conducting bears reverse voltage and ends, capacitor C discharges to load circuit, still have electric current in load, and Uc presses discharge curve mn decline, at the next positive half period of Ui, work as Ui > Uc, diode is conducting again, capacitor C is recharged again, repeat said process, like this, just reach alternating current and become galvanic purpose.
When slab and girder is bent upwards vibration, as shown in Figure 3, permanent magnet A and with between soft iron core o coil C the distance reduce, magnetic flux by coil C increases, if circuit closed can produce induced current, according to Lenz's law, faradic effect is always revolted the reason that causes it, this reason is passed through the increase of its magnetic flux just, and as shown in Figure 3, this is power generation process to the inductive current direction therefore produced with soft iron core o coil C.Induced current can make again to be with soft iron core o coil C to produce magnetic field simultaneously, according to the pole polarity of right hand solenoid rule judgement coil C left end, it is the N utmost point, right-hand member is the S utmost point, to offset the increase of magnetic flux, with the permanent magnet A left end magnetic pole corresponding with soft iron core o coil C position, it is the S utmost point, right-hand member is the N utmost point, and a coil C side relative to permanent magnet A is the N utmost point and produces repulsive force, stops reducing of the two distance.Permanent magnet B and increasing with the distance between soft iron core o coil D, the magnetic flux by coil D reduces, if circuit closed, as shown in Figure 3, this is power generation process to the inductive current direction produced according to Lenz's law o coil D.
Induced current can make again to be with soft iron core o coil D to produce magnetic field simultaneously, according to the pole polarity of right hand solenoid rule judgement coil D left end, it is the N utmost point, right-hand member is the S utmost point, to offset reducing of magnetic flux, with the permanent magnet B left end magnetic pole corresponding with soft iron core o coil D position, it is the N utmost point, right-hand member is the S utmost point, and coil D is relative with permanent magnet B, and a side opposite pole produces attraction, stops the increase of the two distance.Produce repulsive force between permanent magnet A and coil C, produce attraction between permanent magnet B and coil D, like this slab and girder is formed to a clockwise moment of flexure, the flexural vibrations that make progress to hinder it, this is that the utility model embodiment 1 slab and girder is bent upwards the control procedure while vibrating.
When slab and girder is bent downwardly vibration, as shown in Figure 4, permanent magnet A and increasing with the distance between soft iron core o coil C, magnetic flux by coil C reduces, if circuit closed can produce induced current, as shown in Figure 4, this is power generation process to the inductive current direction produced according to Lenz's law o coil C.It is the S utmost point that the while induced current makes the pole polarity of coil C left end, right-hand member is the N utmost point, to offset reducing of magnetic flux, with the permanent magnet A left end pole polarity corresponding with soft iron core o coil C position, it is the S utmost point, right-hand member is the N utmost point, coil C is relative with permanent magnet A, and a side opposite pole produces attraction, stops the increase of the two distance.Permanent magnet B and reducing with the distance between soft iron core o coil D, the magnetic flux by coil D increases, if circuit closed, as shown in Figure 4, this is power generation process to the inductive current direction produced according to Lenz's law o coil D.
Induced current can make again to be with soft iron core o coil D to produce magnetic field simultaneously, according to the pole polarity of right hand solenoid rule judgement coil D left end, it is the S utmost point, right-hand member is the N utmost point, to offset the increase of magnetic flux, with the permanent magnet B left end magnetic pole corresponding with soft iron core o coil D position, it is the N utmost point, right-hand member is the S utmost point, and coil D is relative with permanent magnet B, and a side like pole produces repulsive force, stops reducing of the two distance.Produce attraction between permanent magnet A and coil C, produce repulsive force between permanent magnet B and coil D, like this slab and girder is formed to a counterclockwise moment of flexure, the downward flexural vibrations with the hampering plate girder construction, this is the control procedure of the utility model embodiment 1 slab and girder while being bent downwardly vibration.
Embodiment 2:
A kind of generating and passive control system of the oscillating plate girder construction based on permanent magnet, as shown in Figure 2, comprise mechanical part and circuit part.Wherein, mechanical part comprises wall 1, slab and girder 5, the strip permanent magnet 2 that the nonferromagnetic material is made, and circuit part comprises band soft iron core o coil 3, bridge rectifier, capacitive filters, load (can be LED lamp, rechargeable battery or other mini electrical equipment) 8 and wire 4.Described wall is made by the nonferromagnetic material; Described slab and girder is the object of vibration; Described strip permanent magnet is divided into two of A, B, on the wall that the symmetrical nonferromagnetic material that is installed on the slab and girder upper and lower sides is made respectively; Described band soft iron core o coil is divided into two of C, D, symmetry is installed on the both sides up and down of slab and girder free end respectively, and coil centerline aligns with the strip permanent magnet center line of the same side, wherein, slab and girder and being arranged on the wall that the nonferromagnetic material of a side makes with soft iron core o coil, and permanent magnet is arranged on the wall that opposite side nonferromagnetic material makes; Described bridge rectifier directly is connected with coil, and after bridge rectifier, an electric capacity 7 in parallel, form the bridge-type filter rectifier jointly; After described load 8 is directly parallel in the bridge-type filter rectifier; Described band soft iron core o coil 3, bridge-type filter rectifier and load 8 form a closed-loop path, to guarantee producing induced current in loop.
Strip permanent magnet adopts rare-earth permanent magnet, use A, two permanent magnets of B in the utility model, be installed on respectively on the wall that the nonferromagnetic material of the upper and lower both sides of slab and girder makes and align with band soft iron core o coil centerline, the strip permanent magnet A left end be installed on the wall that the nonferromagnetic material makes is the N utmost point, right-hand member is the S utmost point, strip permanent magnet B left end is the S utmost point, and right-hand member is the N utmost point, as shown in Figure 2.The purpose of above-mentioned such installation is in order to make permanent magnet A and permanent magnet B form the magnetic pole loop; certainly the magnetic pole installation direction of permanent magnet also can be from above-mentioned different; the direction of winding of o coil also can be done corresponding variation; to guarantee the induced current same-phase with soft iron core o coil C and D; affiliated association area researcher should be understood that this is also within protection range of the present utility model.
Coil is band soft iron core o coil, with enamelled wire, is entwined, and for the efficiency that improves generating and the effect of passive vibration control, the number of turn of coil should be many as much as possible, and the enamelled wire winding direction of two o coils is consistent.The utility model is used C, two band soft iron core o coils of D, be installed on respectively on the support of the upper and lower both sides of slab and girder and center line aligns with permanent magnet, slab and girder and permanent magnet are installed on respectively on the wall that two nonferromagnetic materials being parallel to each other make, be installed on the end of slab and girder with soft iron core o coil, and take the plate-girder center line as symmetrical.
Rectification circuit adopts bridge rectifier, by 4 in twos the diodes 6 of docking form bridge circuit, bridge rectifier is the most frequently used circuit that utilizes the unidirectional general character of diode 6 to carry out rectification.The upper and lower two ends of bridge rectifier are tape splicing soft iron core o coil D and C respectively, the follow-up filter circuit of left and right two termination, when slab and girder is bent upwards vibration, inductive current direction as shown in Figure 5, adds forward voltage to diode D1, D4, Dl, D4 conducting, D2, D3 are added to reverse voltage, D2, D3 cut-off, just form closed-loop path by band soft iron core o coil D, diode D1, load circuit, diode D4 and coil C in circuit, by induced electromotive force, forms induced current; When slab and girder is bent downwardly vibration, inductive current direction as shown in Figure 6, D2, D3 are added to forward voltage, D2, D3 conducting, D1, D4 are added to reverse voltage, D1, D4 cut-off, band soft iron core o coil C, diode D2, load circuit, diode D3 and coil D form closed-loop path, by induced electromotive force, form induced current.So repeat down, result just obtains induced voltage as shown in Figure 8 at the input of bridge rectifier Fig. 7, at the output of bridge rectifier Fig. 7, just obtains the full-wave rectification electric current of non-filtered as shown in Figure 9.
Filter circuit adopts capacitor filter, a capacitor in parallel after bridge rectifier, as shown in Figure 7, its principle is that the terminal voltage of capacitor can not transition when circuit state changes, the one direction cycle variable-current of bridge rectifier output is changed into to amplitude and change comparatively smooth direct current, result as shown in figure 10.When the bridge rectifier conducting, power supply is to load circuit on the one hand, capacitor C is charged simultaneously, in the situation that ignore the diode forward pressure drop, charging voltage Uc is consistent with the sinusoidal voltage Ui of rising, as shown in figure 10, charging voltage Uc and supply power voltage Ui reach maximum at the M point simultaneously, then charging voltage Uc and supply power voltage Ui start to descend, supply power voltage Ui descends sinusoidally, when Ui<Uc, the diode of bridge rectifier conducting bears reverse voltage and ends, capacitor C discharges to load circuit, still have electric current in load, and Uc presses discharge curve mn decline, at the next positive half period of Ui, work as Ui > Uc, diode is conducting again, capacitor C is recharged again, repeat said process, like this, just reach alternating current and become galvanic purpose.
Induced current can make again to be with soft iron core o coil C to produce magnetic field simultaneously, according to the pole polarity of right hand solenoid rule judgement coil C left end, it is the N utmost point, right-hand member is the S utmost point, to offset reducing of magnetic flux, with the permanent magnet A left end magnetic pole corresponding with soft iron core o coil C position, it is the N utmost point, right-hand member is the S utmost point, and coil C is relative with permanent magnet A, and a side opposite pole produces attraction, stops the increase of the two distance.Permanent magnet B and reducing with the distance between soft iron core o coil D, the magnetic flux by coil D increases, if the inductive current direction that circuit closed produces according to Lenz's law o coil D is as shown in Figure 5, this is power generation process.
Induced current can make again to be with soft iron core o coil D to produce magnetic field simultaneously, according to the pole polarity of right hand solenoid rule judgement coil D left end, it is the N utmost point, right-hand member is the S utmost point, to offset the increase of magnetic flux, with the permanent magnet B left end magnetic pole corresponding with soft iron core o coil D position, it is the S utmost point, right-hand member is the N utmost point, and coil D is relative with permanent magnet B, and a side like pole produces repulsive force, stops reducing of the two distance.Produce attraction between permanent magnet A and coil C, produce repulsive force between permanent magnet B and coil D, like this slab and girder is formed to a clockwise moment of flexure, the flexural vibrations that make progress to weaken it, this is that the utility model embodiment 2 slab and girders are bent upwards the vibration control process.
When slab and girder is bent downwardly vibration, as shown in Figure 6, permanent magnet A and with between soft iron core o coil C the distance reduce, magnetic flux by coil C increases, if circuit closed, as shown in Figure 6, this is power generation process to the inductive current direction produced according to Lenz's law o coil C.Induced current can make again to be with soft iron core o coil C to produce magnetic field simultaneously, according to the field pole of right hand solenoid rule judgement coil C left end, it is the N utmost point, right-hand member is the S utmost point, to offset reducing of magnetic flux, with the permanent magnet A left end magnetic pole corresponding with soft iron core o coil C position, it is the S utmost point, right-hand member is the N utmost point, and coil C is relative with permanent magnet A, and a side like pole produces repulsive force, stops reducing of the two distance.Permanent magnet B and increasing with the distance between soft iron core o coil D, the magnetic flux by coil D reduces, if the inductive current direction that circuit closed produces according to Lenz's law o coil D is as shown in Figure 6, this is power generation process.
Induced current can make again to be with soft iron core o coil D to produce magnetic field simultaneously, according to the pole polarity of right hand solenoid rule judgement coil D left end, it is the S utmost point, right-hand member is the N utmost point, to offset reducing of magnetic flux, with the permanent magnet B left end magnetic pole corresponding with soft iron core o coil D position, it is the S utmost point, right-hand member is the N utmost point, and coil D is relative with permanent magnet B, and a side opposite pole produces attraction, stops the increase of the two distance.Produce repulsive force between permanent magnet A and coil C, produce attraction between permanent magnet B and coil D, like this slab and girder is formed to a counterclockwise moment of flexure, the downward flexural vibrations with the hampering plate girder construction, this is the control procedures of the utility model embodiment 2 slab and girders while being bent downwardly vibration.
Although above-mentioned, by reference to the accompanying drawings embodiment of the present utility model is described; but be not the restriction to the utility model protection range; one of ordinary skill in the art should be understood that; on the technical solutions of the utility model basis, those skilled in the art do not need to pay various modifications that creative work can make or distortion still in the utility model protection range.
Claims (7)
1. the generating of an oscillating plate girder construction and passive control system, it is characterized in that, comprise mechanical part and circuit part, described mechanical part comprises slab and girder, two permanent magnets and a wall of being made by the nonferromagnetic material, described slab and girder one end is fixed in described wall, the other end is unsettled, and two permanent magnet Parallel Symmetrics are arranged in the described wall of slab and girder upper and lower sides, and described two permanent magnet polarities are contrary; Described circuit part comprises two coils of the o with soft iron core, described two are installed on the slab and girder upper and lower sides near the described wall outside of permanent magnet with soft iron core o coil symmetry, and the center line of the described coil permanent magnet centerline collineation corresponding with the same side; Described two band soft iron core o coils are connected afterwards and load circuit connects to form a closed-loop path.
2. the system as claimed in claim 1, is characterized in that, described band soft iron core o coil is fixed on described slab and girder.
3. the generating of an oscillating plate girder construction and passive control system, it is characterized in that, comprise mechanical part and circuit part, described mechanical part comprises slab and girder, two permanent magnets and two walls of being made by the nonferromagnetic material, two described walls be arranged in parallel, and described slab and girder one end is fixed in one of them described wall, and the other end is unsettled, two permanent magnet Parallel Symmetrics are arranged in described another wall of slab and girder upper and lower sides, and described two permanent magnet polarities are contrary; Described circuit part comprises two coils of the o with soft iron core, the described upper and lower sides that is symmetricly set in respectively the slab and girder free end with soft iron core o coil, and the center line of the described coil permanent magnet centerline collineation corresponding with the same side; Be electrically connected to load circuit and form a closed-loop path after the series connection of described two band soft iron core o coils.
4. system as claimed in claim 3, is characterized in that, described band soft iron core o coil is installed on slab and girder, and slab and girder is fixed on the nonferromagnetic material and makes on wall.
5. system as described as claim 1 or 3, is characterized in that, described load circuit comprises the bridge-type filter rectifier, after the bridge-type filter rectifier, is parallel with load; Described bridge-type filter rectifier comprises and the direct-connected bridge rectifier of described coil, an electric capacity in parallel after bridge rectifier.
6. system as described as claim 1 or 3, is characterized in that, described permanent magnet adopts the bar shaped rare-earth permanent magnet, and permanent magnet one end forms the N utmost point, and the other end forms the S utmost point.
7. system as described as claim 1 or 3, is characterized in that, described band soft iron core o coil is entwined with enamelled wire, and there is soft iron core centre, and the enamelled wire winding direction of two o coils is consistent.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203059807U CN203339924U (en) | 2013-05-30 | 2013-05-30 | Power generation and passive control system of vibration plate girder structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203059807U CN203339924U (en) | 2013-05-30 | 2013-05-30 | Power generation and passive control system of vibration plate girder structure |
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| CN203339924U true CN203339924U (en) | 2013-12-11 |
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| CN2013203059807U Withdrawn - After Issue CN203339924U (en) | 2013-05-30 | 2013-05-30 | Power generation and passive control system of vibration plate girder structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103248192A (en) * | 2013-05-30 | 2013-08-14 | 青岛理工大学 | Power generating and passive electromagnetic damp control system with vibrating plate beam structure |
| CN104124851A (en) * | 2014-06-13 | 2014-10-29 | 姜地 | Vibration generator |
| CN116504500A (en) * | 2023-06-29 | 2023-07-28 | 江苏科兴电器有限公司 | Energy-saving direct-current energy supply transformer with electromagnetic shielding |
-
2013
- 2013-05-30 CN CN2013203059807U patent/CN203339924U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103248192A (en) * | 2013-05-30 | 2013-08-14 | 青岛理工大学 | Power generating and passive electromagnetic damp control system with vibrating plate beam structure |
| CN104124851A (en) * | 2014-06-13 | 2014-10-29 | 姜地 | Vibration generator |
| CN116504500A (en) * | 2023-06-29 | 2023-07-28 | 江苏科兴电器有限公司 | Energy-saving direct-current energy supply transformer with electromagnetic shielding |
| CN116504500B (en) * | 2023-06-29 | 2023-09-05 | 江苏科兴电器有限公司 | Energy-saving direct-current energy supply transformer with electromagnetic shielding |
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