Vortex-induced vibration energy collection and vibration control device and method

Abstract

The invention provides a vortex-induced vibration energy collection and vibration control device and method, and belongs to the technical field of energy collection and vortex-induced vibration control. The device comprises a deformation assembly, a monitoring assembly and an energy collection assembly. The deformation assembly is arranged on the target surface of the target piece, the deformation assembly comprises a skin and a driving piece, the driving piece is arranged between the skin and the target surface, and the driving piece can drive the skin to be in a first state of concave deformation and a second state of convex deformation. The monitoring assembly is configured to monitor an environment wind vector and a vibration parameter, when the environment wind vector is larger than a first threshold value, the driving piece drives the skin to be in a first state so as to increase the amplitude of the target piece, and when the vibration parameter is larger than a second threshold value, the driving piece drives the skin to be in a second state so as to reduce the amplitude of the target piece. The energy harvesting assembly is configured to be capable of converting mechanical energy of the target piece into electric energy. The control degree of vortex-induced vibration of the target piece can be improved, and the energy collection efficiency of the target piece can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of energy collection and vortex-induced vibration control, and in particular to a device and method for energy collection and vibration control of vortex-induced vibration. Background Art

[0002] Vortex-induced vibrations (VIVs) are widely present in scenarios where fluids interact with objects. In the field of energy harvesting, utilizing VIVs for power generation is a research hotspot. However, conventional VIV energy harvesting devices or conventional vibration control measures often struggle to achieve both VIV control and energy harvesting. On the one hand, the intensity and frequency of VIVs cannot be effectively controlled, resulting in severe vibrations in strong winds, which can easily damage the device. On the other hand, the energy harvesting efficiency is low, making it impossible to fully utilize the energy generated by VIVs. How to effectively control VIVs while simultaneously improving energy harvesting efficiency has become a pressing issue. Summary of the Invention

[0003] The present invention provides a vortex-induced vibration energy collection and vibration control device and method, the purpose of which is to improve the control degree of the vortex-induced vibration of a target part and improve the energy collection efficiency of the target part.

[0004] In order to achieve the above object, the present invention provides an energy collection and vibration control device for vortex-induced vibration, comprising:

[0005] a deformation assembly disposed on a target surface of a target component, the deformation assembly comprising a skin and a driving member, the driving member being disposed between the skin and the target surface, the driving member being configured to drive the skin into a first state producing a concave deformation close to the target surface, and to drive the skin into a second state producing a convex deformation away from the target surface;

[0006] a monitoring component configured to monitor an ambient wind vector and a vibration parameter of the target component, wherein when the ambient wind vector is greater than a first threshold, the driving component is capable of driving the skin to be in the first state to increase the amplitude of the target component; and when the vibration parameter is greater than a second threshold, the driving component is capable of driving the skin to be in the second state to reduce the amplitude of the target component;

[0007] An energy collection component is provided on the outer periphery of the target part, and the energy collection component is configured to convert the mechanical energy of the target part into electrical energy.

[0008] In one embodiment, a projection of the skin on the target surface coincides with the target surface.

[0009] In one embodiment, the target part is a flat plate, and the side surfaces of the flat plate on two opposite sides along the thickness direction are both the target surfaces, and the deformation components are respectively provided on the two target surfaces.

[0010] In one embodiment, the deformation assembly further includes a driver, wherein the driver is an airbag, and the driver is configured to drive the volume of the airbag to increase or decrease so that the skin can be in the first state or the second state.

[0011] In one embodiment, the target part is a flat plate, the four corners of the flat plate are configured as rounded corners, and the projection of the skin on the target surface coincides with the target surface to increase the vortex shedding frequency of the fluid flowing through the skin.

[0012] In one embodiment, the energy collection and vibration control device also includes a controller, which is electrically connected to the deformation component and the monitoring component respectively. The monitoring results of the monitoring component can be transmitted to the controller, and the controller can issue control instructions to the deformation component so that the driving member can drive the skin to be in the first state or the second state according to the monitoring results of the monitoring component.

[0013] In one embodiment, the energy collection assembly includes a piezoelectric collector and an electromagnetic collector. The piezoelectric collector is disposed on the target surface, and the electromagnetic collector is disposed on a side of the skin close to the target surface.

[0014] In one embodiment, there are multiple electromagnetic collectors, and the multiple electromagnetic collectors are respectively arranged on the edges of the skin.

[0015] In one embodiment, the monitoring component includes a wind speed sensor and a vibration sensor, and the number of the wind speed sensor and the vibration sensor is multiple, at least some of the wind speed sensors are arranged on the windward side of the target part, and the vibration sensor is arranged on the side of the skin close to the target part.

[0016] A second aspect of the present invention provides a method for energy collection and vibration control of vortex-induced vibration, comprising:

[0017] Arranging a deformation component on a target surface of a target part, wherein the deformation component includes a skin and a driving component, and the driving component is arranged between the skin and the target surface;

[0018] Using a monitoring component to obtain an environmental wind vector and vibration parameters of the target component;

[0019] When the ambient wind vector is greater than a first threshold, the driving member drives the skin to generate a concave deformation close to the target surface to expand the amplitude of the target member;

[0020] converting the mechanical energy of the target part into electrical energy and collecting the electrical energy;

[0021] When the vibration parameter is greater than a second threshold, the skin is driven by the driving member to generate a convex deformation away from the target surface, so as to reduce the amplitude of the target member.

[0022] The above solution of the present invention has the following beneficial effects:

[0023] In the embodiment of the present application, the skin is in the first state or the second state, which can better change the recirculation area of ​​the target part and affect the development of the wake, thereby improving or degrading the aerodynamic performance of the target part, so as to better achieve the purpose of increasing the amplitude to facilitate energy recovery and reducing the amplitude to ensure the safety of the target part. When the skin is in the first state that produces a concave deformation close to the target surface, the range of the upper and lower side recirculation areas of the target part can be enlarged, the length of the wake recirculation area is reduced, the vortex shedding strength is enhanced, and the pressure of the target surface is increased, thereby increasing the amplitude of the target part, which is convenient for the energy collection component to convert the mechanical energy of the target part into electrical energy for collection. When the skin is in the second state that produces a convex deformation away from the target surface, the range of the upper and lower side recirculation areas can be reduced, the length of the wake recirculation area is increased, the vortex shedding strength is weakened, thereby reducing the amplitude of the target part, which is beneficial to reducing the possibility of the target part being damaged. Furthermore, the energy collection and vibration control device of the present application can make judgments based on the corresponding thresholds according to the ambient wind vector and vibration parameters monitored by the monitoring component, and then make the driving member drive the skin to be in a corresponding state, or expand the amplitude or reduce the amplitude, which is conducive to achieving the dual optimization goals of vibration control and energy collection of the target part.

[0024] Other beneficial effects of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 Schematic diagram of the structure of a device for collecting energy and controlling vibration of vortex-induced vibration according to an embodiment of the present invention;

[0026] Figure 2 This is a schematic structural diagram of a skin in a first state according to an embodiment of the present invention;

[0027] Figure 3 This is a schematic structural diagram of the skin in the second state according to an embodiment of the present invention;

[0028] Figure 4 This is a simulation result diagram showing the influence of the degree of concavity of the skin on the fluctuating wind pressure coefficient when the skin is in the first state in one embodiment of the present invention;

[0029] Figure 5 This is a simulation result diagram showing the influence of the convexity of the skin on the fluctuating wind pressure coefficient when the skin is in the second state in one embodiment of the present invention;

[0030] Figure 6Schematic diagram of the flow of a method for energy collection and vibration control of vortex-induced vibration in one embodiment of the present invention.

[0031] [Description of Reference Numerals]

[0032] 100. Energy collection and vibration control device; 1. Deformation component; 11. Skin; 12. Drive component; 13. Driver; 2. Monitoring component; 3. Energy collection component; 31. Electromagnetic collector; 4. Controller; 200. Target component; 201. Target surface. DETAILED DESCRIPTION

[0033] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will be described in detail with reference to the accompanying drawings and specific embodiments. Obviously, the embodiments described are part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0034] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to a locking connection, a detachable connection, or an integral connection; they may refer to a mechanical connection or an electrical connection; they may refer to a direct connection or an indirect connection through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0036] See also Figures 1 to 3This application proposes a vortex-induced vibration energy harvesting and vibration control device 100. This device utilizes the concavity of the flexible skin 11 to expand the vibration amplitude of the target part 200, facilitating the collection of the target part 200's vibrational mechanical energy. The convexity of the flexible skin 11 also reduces the vibration amplitude of the target part 200, thereby reducing the possibility of damage to the target part 200. Consequently, the energy harvesting and vibration control device 100 of this application, by adjusting the state of the skin 11, facilitates achieving the dual optimization goals of vibration control and energy harvesting for the target part 200.

[0037] Specifically, see Figure 1 The vortex-induced vibration energy collection and vibration control device 100 of the present application includes a deformation component 1, a monitoring component 2 and an energy collection component 3. The deformation component 1 is arranged on the target surface 201 of the target part 200. The target part 200 can be configured as a plate, such as a flat plate or a wing. The target part 200 can be configured as a cylinder or a square column. The target surface 201 can be the surface with the largest area on the target part 200. For example, Figures 1 to 3 Both show side views of the target part 200, that is, the side faces of the target part 200 in the thickness direction and the width direction. Figure 1 The arrow in shows the direction of the incoming flow, that is, the fluid first blows toward the side surface formed by the target part 200 in the thickness direction and the length direction, and then flows through the target surface 201. The target surface 201 is the side surface formed by the target part 200 in the length direction and the width direction. The deformation component 1 includes a skin 11 and a driving member 12. The skin 11 is configured as a flexible structure. The material of the skin 11 can be a nanomaterial with high strength and high elasticity, and has certain tear resistance and weather resistance to reduce the possibility of damage to the skin 11. The driving member 12 is arranged between the skin 11 and the target surface 201, and is used to adjust the state of the skin 11 relative to the target part 200, that is, the driving member 12 is configured to be able to drive the skin 11 to be in a first state of producing a concave deformation close to the target surface 201, as shown Figure 2 and driving the skin 11 in a second state in which the convex deformation is generated away from the target surface 201, as shown Figure 3 shown.

[0038] The monitoring component 2 is configured to monitor the ambient wind vector and the vibration parameters of the target part 200. The ambient wind vector includes the direction of the fluid and the velocity value of the fluid. The vibration parameters of the target part 200 include parameters such as the amplitude, vibration frequency and vibration acceleration of the target part 200. The ambient wind vector and the vibration parameters are both configured to determine what action the driver 12 performs, that is, when the ambient wind vector is greater than a first threshold, the driver 12 can drive the skin 11 to be in a first state to increase the amplitude of the target part 200. When the vibration parameter is greater than a second threshold, the driver 12 can drive the skin 11 to be in a second state to reduce the amplitude of the target part 200. For example, when the wind speed is greater than the wind speed threshold, the target part 200 begins to generate vortex-induced vibration, but the amplitude is not obvious relative to the thickness of the target part 200 itself. The driver 12 can drive the skin 11 to be in a concave first state to increase the amplitude of the target part 200, which is convenient for energy collection. For example, target part 200 is a rectangular flat plate with dimensions of 60 mm in thickness and 300 mm in width, a unit mass of 6.375 kg / m, and a natural frequency of 6.15 Hz. The initial wind speed for target part 200 is 2.7 m / s. At a wind speed of 3.9 m / s, target part 200 has a maximum amplitude of 0.067D, where D represents the dimension of target part 200 in the thickness direction. When the skin 11 is in the first state, the maximum amplitude of target part 200 is 0.133D. The amplitude of target part 200 is increased, facilitating energy collection. For example, when the amplitude of target part 200 exceeds an amplitude threshold, target part 200 vibrates violently and is susceptible to damage, such as fatigue failure. The driver 12 can drive the skin 11 to the second state to reduce the amplitude of target part 200, thereby minimizing the possibility of damage to target part 200.

[0039] The energy collection assembly 3 is disposed on the outer periphery of the target part 200. The energy collection assembly 3 is configured to convert the mechanical energy of the target part 200 into electrical energy, thereby recovering the mechanical energy of the vibration of the target part 200. For example, the energy collection assembly 3 can begin operating when the skin 11 is in the first state to collect energy from the target part 200. The energy collection assembly 3 can also be in the operating state at any time to collect energy when the target part 200 vibrates.

[0040] For example, see Figure 2 and Figure 4 , Figure 4 It shows that when the skin 11 is in the Figure 2 The influence of the first state on the pulsating wind pressure coefficient is shown in FIG. Figure 4 The horizontal axis represents different positions of the skin 11, and the vertical axis represents the corresponding fluctuating wind pressure coefficients at different positions. The larger the fluctuating wind pressure coefficient, the greater the amplitude. Figure 4H1 / D in the figure represents the ratio of the concave distance of the skin 11 to the thickness of the target part 200. The specific position of the size is as follows: Figure 2 shown. Figure 4 The flate plate in the figure indicates that the skin 11 is in a flat state. Figure 4 It can be seen that when the skin 11 is in a planar state, the pulsating wind pressure coefficients at various positions are almost all smaller than the pulsating wind pressure coefficients at various positions when the skin 11 is in the first state with different degrees of depression, indicating that the skin 11 in the first state can increase the amplitude of the target part 200.

[0041] For example, see Figure 3 and Figure 5 , Figure 5 It shows that when the skin 11 is in the Figure 3 The influence of the second state on the pulsating wind pressure coefficient is shown in FIG. Figure 5 The horizontal axis represents different positions of the skin 11, and the vertical axis represents the corresponding fluctuating wind pressure coefficients at different positions. The larger the fluctuating wind pressure coefficient, the greater the amplitude. Figure 5 H2 / D in the figure represents the ratio of the distance of the convex portion of the skin 11 to the thickness of the target part 200. The specific position of the size is as follows: Figure 3 shown. Figure 5 The flate plate in the figure indicates that the skin 11 is in a flat state. Figure 5 It can be seen that when the skin 11 is in a planar state, the pulsating wind pressure coefficients at various positions are almost all greater than the pulsating wind pressure coefficients at various positions when the skin 11 is in a second state with different degrees of convexity, indicating that the skin 11 in the second state can reduce the amplitude of the target part 200.

[0042] In the embodiment of the present application, when the skin 11 is in the first or second state, it can effectively change the recirculation zone of the flow around the target part 200 and affect the development of the wake, thereby improving or degrading the aerodynamic performance of the target part 200, thereby effectively achieving the purpose of increasing the amplitude to facilitate energy recovery and reducing the amplitude to ensure the safety of the target part 200. When the skin 11 is in the first state, which produces a concave deformation near the target surface 201, the upper and lower recirculation zones of the target part 200 can be enlarged, the length of the wake recirculation zone can be reduced, the vortex shedding strength can be enhanced, and the pressure on the target surface 201 can be increased, thereby increasing the amplitude of the target part 200, facilitating the energy collection assembly 3 to convert the mechanical energy of the target part 200 into electrical energy for collection. When the skin 11 is in the second state, which produces a convex deformation away from the target surface 201, the upper and lower recirculation zones can be reduced, the length of the wake recirculation zone can be increased, the vortex shedding strength can be weakened, and the amplitude of the target part 200 can be reduced, which helps reduce the possibility of damage to the target part 200. Furthermore, the energy collection and vibration control device 100 of the present application can make judgments based on the environmental wind vector and vibration parameters monitored by the monitoring component 2 and the corresponding thresholds, and then enable the driving component 12 to drive the skin 11 to be in a corresponding state, or to expand the amplitude or reduce the amplitude, which is conducive to achieving the dual optimization goals of vibration control and energy collection of the target part 200.

[0043] In one embodiment, please refer to Figure 1 The projection of the skin 11 on the target surface 201 coincides with the target surface 201, so that the skin 11 can affect the incoming flow characteristics around the target part 200 as much as possible, so that when energy collection is required, the skin 11 in the first state can increase the vibration of the target part 200 as much as possible, and when the vibration of the target part 200 needs to be controlled, the skin 11 in the second state can reduce the vibration of the target part 200 as much as possible, which is conducive to achieving the dual optimization goals of vibration control and energy collection of the target part 200.

[0044] In one embodiment, the target part 200 is a flat plate, and the side surfaces on opposite sides of the flat plate along the thickness direction are both target surfaces 201, that is, the two sides of the target part 200 with the largest areas are the target surfaces 201, and the two target surfaces 201 are respectively provided with deformation components 1, so that the skin 11 can affect the incoming flow characteristics around the target part 200 as much as possible, so that when energy collection is required, the skin 11 in the first state can increase the vibration of the target part 200 as much as possible, and when the vibration of the target part 200 needs to be controlled, the skin 11 in the second state can reduce the vibration of the target part 200 as much as possible, which is conducive to achieving the dual optimization goals of vibration control and energy collection of the target part 200.

[0045] In one embodiment, please refer to Figure 1, the deformation component 1 also includes a driver 13. The driving member 12 is an airbag. The airbag can be an inflatable airbag, that is, through the inflation and deflation of the airbag, the skin 11 in contact with the airbag is in a first state of producing a concave deformation close to the target surface 201 or in a second state of producing a convex deformation away from the target surface 201. The deformation of the airbag itself is relatively smooth during the inflation and deflation process, so that the deformation of the skin 11 can be smoothly and dynamically adjusted. The driver 13 is configured to drive the increase or decrease of the volume of the airbag so that the skin 11 can be in the first state or the second state. The driver 13 can be a circuit and air path control element to inflate and deflate the driving member 12 of the airbag.

[0046] In one embodiment, the surface of the airbag near the skin 11 is a driving surface, and the driving surface has folds to enable the volume of the airbag to increase or decrease. For example, when the driving surface of the skin 11 is a plane, the folds of the driving surface can be folded together. In the process of increasing or decreasing the volume of the skin 11, the folds of the driving surface can be opened to increase the surface area of ​​the driving surface, thereby enabling the driving surface to be shaped like Figure 2 The sunken state shown or Figure 3 The raised state shown.

[0047] In one embodiment, the target part 200 is a flat plate. The four top corners of the flat plate are configured as rounded corners. For example, the four relatively sharp top corners of the flat plate are rounded. The projection of the skin 11 on the target surface 201 coincides with the target surface 201, so that the four top corners of the skin 11 can also be configured as rounded corners. It should be noted that relatively sharp top corners can easily cause the fluid to separate more suddenly at the top corner position, forming a stable separation vortex, such as a Karman vortex street, so that the separation point is relatively fixed and forward, and a larger backflow vortex is formed in the separation area, with a longer vortex shedding period and a lower frequency. In this process, the boundary layer is mostly in a laminar state before separation, and a turbulent vortex is directly formed after separation, and the vortex size is larger. The top corners of the target part 200 and the skin 11 are rounded, so that the top corners are blunted, the radius of curvature of the fluid when flowing around is increased, and the separation point moves backward. The fluid separation delay may cause the boundary layer to develop into a turbulent boundary layer before separation. The turbulent boundary layer has a stronger ability to resist separation, and the vortex formed after separation is smaller in size and stronger in intensity. Smaller vortices correspond to shorter shedding cycles, thereby increasing the vortex shedding frequency. A higher vortex shedding frequency can reduce the starting wind speed of the target part 200, thereby enabling the energy collection and vibration control device 100 of the present application to collect energy when the skin 11 is in the first state and the wind speed is low, thereby expanding the wind speed range in which energy collection can be performed, which is conducive to improving the efficiency of energy collection.

[0048] It is understandable that in the embodiment of the present application, the target part 200 may be a square column, and the four relatively sharp corners of the square column are rounded to expand the wind speed range of energy collection.

[0049] In one embodiment, please refer to Figure 1 The energy collection and vibration control device 100 further includes a controller 4, which is electrically connected to the deformation component 1 and the monitoring component 2, respectively. The monitoring results of the monitoring component 2 can be transmitted to the controller 4, and the controller 4 can issue control instructions to the deformation component 1, so that the driving member 12 can drive the skin 11 to the first state or the second state according to the monitoring results of the monitoring component 2, and also make the dynamic adjustment of the deformation of the skin 11 more accurate. For example, the controller 4 can be an intelligent control body, based on a deep reinforcement learning algorithm that can continuously interact with the monitoring results of the detection component, and has a built-in control model trained with a large amount of experimental data. It can quickly and in real time generate the optimal control instructions based on the monitoring results of the monitoring component 2, so as to more accurately control the amplitude of the skin 11 in the first state or the amplitude of the second state.

[0050] In one embodiment, please refer to Figure 1 , the energy collection component 3 includes a piezoelectric collector and an electromagnetic collector 31. The piezoelectric collector (not shown) is arranged on the target surface 201. For example, the piezoelectric collector can be evenly embedded in the target surface 201, and the positive piezoelectric effect of the piezoelectric material is used to convert the vibration mechanical energy of the target part 200 into electrical energy. The electromagnetic collector 31 is arranged on the side of the skin 11 close to the target surface 201 to reduce the impact of the electromagnetic collector 31 on the flow on the surface of the skin 11. For example, the electromagnetic collector 31 uses the principle of electromagnetic induction, that is, the magnetic flux lines are cut by the vibration of the target part 200 to convert the mechanical energy of the target part 200 into electrical energy. The piezoelectric collector and the electromagnetic collector 31 can work together, which is beneficial to improve the efficiency of energy collection by the energy collection component 3.

[0051] In one embodiment, please refer to Figure 1 Multiple electromagnetic collectors 31 are provided, each disposed at the edge of the cover 11. This allows the electromagnetic collectors 31 to be located at locations on the target part 200 where the vibration amplitude is greater, thereby enabling the electromagnetic collectors 31 to collect more electrical energy within a single vibration cycle of the target part 200. For example, if the target part 200 is a rectangular flat plate and the cover 11 is also rectangular, the electromagnetic collectors 31 can be located at the four corners of the cover 11.

[0052] In one embodiment, please refer to Figure 1The monitoring component 2 includes a wind speed sensor and a vibration sensor. The wind speed sensor is configured to monitor the ambient wind vector, and the vibration sensor is configured to monitor the vibration parameters of the target part 200. There are multiple wind speed sensors and vibration sensors, which is conducive to obtaining as much data as possible to improve the accuracy of the monitoring results of the monitoring component 2. At least some of the wind speed sensors are arranged on the windward side of the target part 200 to monitor the incoming flow of the target part 200. In addition, the wind speed sensor can also be arranged on the side of the skin 11 close to the target part 200 to monitor the airflow acting on the surface of the skin 11. The vibration sensor is arranged on the side of the skin 11 close to the target part 200 to monitor the vibration of the target part 200.

[0053] See also Figure 6 In a second aspect, the present application proposes a method for energy collection and vibration control of vortex-induced vibration, comprising:

[0054] Step S1, placing a deformation component 1 on a target surface 201 of a target part 200, wherein the deformation component 1 comprises a skin 11 and a driving component 12, wherein the driving component 12 is arranged between the skin 11 and the target surface 201;

[0055] Step S2, using the monitoring component 2 to obtain the environmental wind vector and the vibration parameters of the target part 200;

[0056] Step S3: When the ambient wind vector is greater than a first threshold, the driving member 12 drives the skin 11 to generate a concave deformation close to the target surface 201 to increase the amplitude of the target part 200;

[0057] Step S4, converting the mechanical energy of the target part 200 into electrical energy and collecting it;

[0058] In step S5 , when the vibration parameter is greater than a second threshold, the driving member 12 drives the skin 11 to generate a convex deformation away from the target surface 201 to reduce the amplitude of the target part 200 .

[0059] In the embodiment of the present application, when the skin 11 is in the first or second state, it can effectively change the recirculation zone of the flow around the target part 200 and affect the development of the wake, thereby improving or degrading the aerodynamic performance of the target part 200, thereby effectively achieving the purpose of increasing the amplitude to facilitate energy recovery and reducing the amplitude to ensure the safety of the target part 200. When the skin 11 is in the first state, which produces a concave deformation close to the target surface 201, the upper and lower recirculation zones of the target part 200 are enlarged, the length of the wake recirculation zone is reduced, the vortex shedding strength is enhanced, and the pressure on the target surface 201 is increased, thereby increasing the amplitude of the target part 200, facilitating the energy collection assembly 3 to convert the mechanical energy of the target part 200 into electrical energy for collection. When the skin 11 is in the second state, which produces a convex deformation away from the target surface 201, the upper and lower recirculation zones are reduced, the length of the wake recirculation zone is increased, the vortex shedding strength is weakened, and the amplitude of the target part 200 is reduced, which helps reduce the possibility of damage to the target part 200. Furthermore, the energy collection and vibration control device 100 of the present application can make judgments based on the environmental wind vector and vibration parameters monitored by the monitoring component 2 and the corresponding thresholds, and then enable the driving component 12 to drive the skin 11 to be in a corresponding state, or to expand the amplitude or reduce the amplitude, which is conducive to achieving the dual optimization goals of vibration control and energy collection of the target part 200.

[0060] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A vortex-induced vibration energy collection and vibration control device, characterized in that: include: a deformation assembly disposed on a target surface of a target component, the deformation assembly comprising a skin and a driving member, the driving member being disposed between the skin and the target surface, the driving member being configured to drive the skin into a first state producing a concave deformation close to the target surface, and to drive the skin into a second state producing a convex deformation away from the target surface; a monitoring component configured to monitor an ambient wind vector and a vibration parameter of the target component, wherein when the ambient wind vector is greater than a first threshold, the driving component is capable of driving the skin to be in the first state to increase the amplitude of the target component; and when the vibration parameter is greater than a second threshold, the driving component is capable of driving the skin to be in the second state to reduce the amplitude of the target component; An energy collection component is provided on the outer periphery of the target part, and the energy collection component is configured to convert the mechanical energy of the target part into electrical energy.

2. The vortex-induced vibration energy collection and vibration control device according to claim 1, characterized in that: The projection of the skin on the target surface coincides with the target surface.

3. The vortex-induced vibration energy collection and vibration control device according to claim 1, characterized in that: The target part is a flat plate, and the side surfaces on two opposite sides of the flat plate along the thickness direction are both the target surfaces, and the deformation components are respectively provided on the two target surfaces.

4. The vortex-induced vibration energy collection and vibration control device according to claim 1, characterized in that: The deformation assembly further includes a driver, wherein the driver is an airbag, and the driver is configured to drive the volume of the airbag to increase or decrease so that the skin can be in the first state or the second state.

5. The vortex-induced vibration energy collection and vibration control device according to claim 1, characterized in that: The target part is a flat plate, the four vertex corners of the flat plate are configured as rounded corners, and the projection of the skin on the target surface coincides with the target surface, so as to increase the vortex shedding frequency of the fluid flowing through the skin.

6. The vortex-induced vibration energy collection and vibration control device according to claim 1, characterized in that: The energy collection and vibration control device also includes a controller, which is electrically connected to the deformation component and the monitoring component respectively. The monitoring results of the monitoring component can be transmitted to the controller, and the controller can issue control instructions to the deformation component so that the driving member can drive the skin to be in the first state or the second state according to the monitoring results of the monitoring component.

7. The vortex-induced vibration energy collection and vibration control device according to claim 1, characterized in that: The energy collection component includes a piezoelectric collector and an electromagnetic collector. The piezoelectric collector is arranged on the target surface, and the electromagnetic collector is arranged on a side of the skin close to the target surface.

8. The vortex-induced vibration energy collection and vibration control device according to claim 7, characterized in that: There are multiple electromagnetic collectors, and the multiple electromagnetic collectors are respectively arranged on the edges of the skin.

9. The vortex-induced vibration energy collection and vibration control device according to claim 1, characterized in that: The monitoring component includes a wind speed sensor and a vibration sensor. The wind speed sensor is configured to monitor the ambient wind vector, and the vibration sensor is configured to monitor the vibration parameter. There are multiple wind speed sensors and vibration sensors. At least some of the wind speed sensors are arranged on the windward side of the target part, and the vibration sensor is arranged on the side of the skin close to the target part.

10. A method for energy collection and vibration control of vortex-induced vibration, characterized in that: include: Arranging a deformation component on a target surface of a target part, wherein the deformation component includes a skin and a driving component, and the driving component is arranged between the skin and the target surface; Using a monitoring component to obtain an environmental wind vector and vibration parameters of the target component; When the ambient wind vector is greater than a first threshold, the driving member drives the skin to generate a concave deformation close to the target surface to expand the amplitude of the target member; converting the mechanical energy of the target part into electrical energy and collecting the electrical energy; When the vibration parameter is greater than a second threshold, the skin is driven by the driving member to generate a convex deformation away from the target surface, so as to reduce the amplitude of the target member.

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