Floating photovoltaic floating platform connection system with eddy current damping and piezoelectric self-power supply
Patent Information
- Application Number
- CN202611330843.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-08-31
- Publication Date
- 2026-11-03
AI Technical Summary
In existing floating body vibration reduction connection schemes, closed hydraulic damping is prone to corrosion failure, and the vortex generation capacity of the outflow vibration reduction structure is limited, making it difficult to fully suppress the reciprocating oscillation of the floating platform. The vibration reduction adaptation effect needs to be improved.
Design a floating photovoltaic platform connection system with eddy current damping and piezoelectric self-powered power supply. The system generates vortexes in seawater to dissipate wave kinetic energy through a damping disk, increases the turbulence area by combining a conical skirt, and is supplemented by adaptive adjustment components and protective plates to achieve open seawater eddy current dissipation and enhance the outflow damping effect.
It effectively suppresses wave vibration of the floating platform, improves vibration reduction and adaptability, prevents structural corrosion and jamming failures, achieves self-powered energy supply, and adapts to changing sea conditions.
Smart Images
Figure CN123025901A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of floating marine photovoltaic equipment technology, specifically to a floating photovoltaic platform connection system with eddy current damping and piezoelectric self-powered power supply. Background Technology
[0002] With the continuous development of offshore floating photovoltaic technology, floating platforms with double-layer pontoon configurations are gradually being applied in nearshore and offshore waters. In wave environments, there is significant relative heave and yaw motion between the upper and lower pontoons, thus requiring the configuration of connecting vibration-damping components to adapt to the multi-degree-of-freedom motion of the floating body. These connecting components are constantly immersed in seawater and rely on the seawater medium to dissipate wave energy, thereby reducing the vibration response of the floating body caused by wave excitation and ensuring the overall operational stability of the floating platform.
[0003] Ocean waves are random, with wave height and speed changing in real time with sea conditions. Different sea conditions place different demands on the vibration damping performance of floating body connections. The connection points of the floating bodies must be able to release the deflection displacement between the floating bodies, buffer the impact loads brought by waves, and also have reliable water energy dissipation capabilities. The marine environment also contains interference from marine debris and water flocculents, requiring the vibration damping connection structure to balance vibration damping effectiveness with adaptability to marine working conditions, which places high practical demands on the comprehensive performance of vibration damping components.
[0004] Existing similar floating body vibration reduction connection solutions mostly use closed hydraulic damping to dissipate energy, and the structural seals are prone to corrosion and failure in seawater over a long period of time; some outflow vibration reduction structures rely only on simple disc turbulence, with limited vortex generation capacity and insufficient dissipation of wave kinetic energy, making it difficult to fully suppress the reciprocating oscillation of the floating platform. There is a lack of supporting structures that can enhance the dissipation of outflow vortices, and the vibration reduction adaptation effect needs to be further improved. Summary of the Invention
[0005] The purpose of this invention is to design a floating photovoltaic platform connection system with eddy current damping and piezoelectric self-powered power supply, which solves the problems mentioned in the background art. Most of the existing similar floating body vibration reduction connection schemes use closed hydraulic damping to dissipate energy, and the structural seals are prone to corrosion and failure in seawater over a long period of time. Some external flow vibration reduction structures rely only on simple disk turbulence, which has limited vortex generation capacity and insufficient dissipation of wave kinetic energy, making it difficult to fully suppress the reciprocating oscillation of the platform. There is also a lack of supporting structures to enhance the dissipation of external flow vortices, and the vibration reduction adaptation effect needs to be further improved.
[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solution: A floating photovoltaic platform connection system with eddy current damping and piezoelectric self-powered power supply includes: an upper platform and a lower platform. A photovoltaic power generation module is installed on the upper platform. Connectors are installed on both the upper and lower platforms. The connectors are connected by a wave-damping device. The wave-damping device includes a damping disc that dissipates wave kinetic energy by utilizing seawater eddies during the movement of the damping disc, thereby suppressing the reciprocating oscillation of the platform caused by wave excitation. An auxiliary component is disposed on the damping disk. The conical curved edge included in the auxiliary component gathers water flow through the conical surface and increases the turbulence area, enhances vortex dissipation, and helps to improve the outflow damping effect.
[0007] Preferably, the connector includes an upper flange fixedly installed on the upper floating platform, an upper ball joint fixedly installed on the upper flange, a lower flange fixedly installed on the lower floating platform, a lower ball joint fixedly installed on the lower flange, and the wave-damping device is disposed between the upper ball joint and the lower ball joint.
[0008] Preferably, the wave-damping device includes a main rod fixedly installed between the upper and lower ball joints, a damping disc slidably installed on the main rod, a damping spring provided on the damping disc, and a protrusion fixedly installed at the end of the damping spring away from the damping disc, the protrusion being fixedly installed on the main rod.
[0009] Preferably, a wing plate is fixedly installed on the damping disc, and the damping disc has several through holes.
[0010] Preferably, the damping disc is provided with a plurality of adaptive adjustment components that cooperate with the perforation. The adaptive adjustment components include piston chambers formed around the perforation, piston plates slidably installed in the piston chambers, guide members fixedly installed in the piston chambers, the guide members communicating with the perforation, adjustment plates slidably installed in the guide members, and return springs fixedly installed on the adjustment plates. The end of the return spring away from the adjustment plate is fixedly connected to the inner wall of the piston chamber.
[0011] Preferably, a bellows is fixedly installed on the adjusting plate, the other end of the bellows is fixedly connected to the inner wall of the piston chamber, and the bellows is sleeved on the return spring.
[0012] Preferably, the adjusting plates are provided with cutting edges, and the adjusting plates are arranged horizontally with the cutting edges facing each other.
[0013] Preferably, the auxiliary component includes a tapered skirt rotatably mounted on a damping disc, the tapered skirt having a plurality of inclined holes, and a plurality of baffles fixedly mounted on the tapered skirt.
[0014] Preferably, a set of protective plates is fixedly installed on the lower floating platform, and the protective plates are arranged in an arc shape.
[0015] Preferably, the damping disk is provided with a PVDF piezoelectric film.
[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention utilizes wave excitation to induce relative lifting and oscillating motions between an upper and lower floating platform. The kinetic load is transmitted to a wave-damping device via connecting components on both sides. Under wave disturbance, the damping disc in the device reciprocates in the seawater along with the relative displacement of the floating platform. Seawater flowing around the damping disc undergoes flow separation, continuously generating numerous vortices. These vortices dissipate the kinetic energy carried by the waves, weakening the amplitude of the platform's reciprocating oscillations. Simultaneously, auxiliary components on the damping disc function. Their conical skirts utilize their conical surfaces to converge and guide the surrounding water flow, expanding the range of water flow disturbance and further promoting the generation of seawater vortices. This assists in enhancing hydrodynamic damping under outflow conditions, reducing the vibrational energy brought by waves. By relying on open seawater vortices to dissipate wave energy, the wave vibration of the floating platform is suppressed. Simultaneously, the conical skirts enhance the outflow damping energy dissipation capacity. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram showing the cooperation between the protective plate and the wave-damping device of the present invention; Figure 3 This is a schematic diagram of the wave-damping device of the present invention; Figure 4 This is a front view of the wave-damping device of the present invention; Figure 5 This is a schematic diagram illustrating the cooperation between the damping disc and the damping spring of the present invention; Figure 6 This is a schematic diagram of the structure of the auxiliary component of the present invention; Figure 7 This is a schematic diagram of the adaptive adjustment component of the present invention; Figure 8 For the present invention Figure 7 Enlarged view of point A; Figure 9 This is a schematic diagram of the structure of the adjusting plate of the present invention; Figure 10 This is a schematic diagram showing the cooperation between the lower floating platform and the protective plate of the present invention.
[0018] The image shows: 1. Upper floating platform; 11. Lower floating platform; 111. Protective plate; 12. Connecting parts; 121. Upper flange; 122. Upper ball joint; 123. Lower flange; 124. Lower ball joint; 2. Wave-damping device; 21. Main rod; 22. Lug; 23. Damping spring; 24. Damping disc; 25. Wing plate; 26. Perforation; 3. Adaptive adjustment component; 31. Piston chamber; 32. Piston plate; 33. Guide component; 34. Adjusting plate; 35. Return spring; 36. Bellows; 37. Cutting edge; 4. Auxiliary components; 41. Tapered skirt; 42. Inclined hole; 43. Baffle plate. Detailed Implementation
[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.
[0020] See Figure 1-10 As shown, a floating photovoltaic platform connection system with eddy current damping and piezoelectric self-powered power supply includes: an upper floating platform 1 and a lower floating platform 11. A photovoltaic power generation module is installed on the upper floating platform 1. Both the upper floating platform 1 and the lower floating platform 11 are provided with connectors 12. The connectors 12 are connected by a wave-damping device 2. The wave-damping device 2 includes a damping disk 24 that dissipates wave kinetic energy by seawater eddies during movement, thereby suppressing the reciprocating oscillation of the platform caused by wave excitation. Auxiliary component 4 is disposed on damping disk 24. The conical curved edge included in the auxiliary component 4 gathers water flow through the conical surface and increases the turbulence area, enhances vortex dissipation, and helps to improve the outflow damping effect. The waves at sea excite the upper floating platform 1 and the lower floating platform 11 to produce relative lifting and oscillating motions. The kinetic load is transmitted to the wave damping device 2 through the connecting parts 12 on both sides. Under wave disturbance, the damping disk 24 in the wave damping device 2 reciprocates in the seawater with the relative displacement of the floating platform. The seawater flows around the damping disk 24 and undergoes flow separation, continuously generating a large number of vortices. The vortices dissipate the kinetic energy carried by the waves, weakening the amplitude of the reciprocating oscillation of the floating platform. At the same time, the auxiliary component 4 set on the damping disk 24 works. Its conical skirt 41 uses the cone surface to generate a converging and guiding effect on the surrounding water flow, expanding the range of water flow disturbance and further promoting the generation of seawater vortices. This helps to improve the hydrodynamic damping under the outflow conditions, reduce the vibration energy brought by the waves, and achieve the suppression of wave vibration of the floating platform by relying on the dissipation of wave energy by the open seawater vortices. At the same time, the conical skirt 41 enhances the outflow damping energy dissipation capacity.
[0021] See Figure 4 As shown, the connecting member 12 includes an upper flange 121 fixedly installed on the upper floating platform 1, an upper ball joint 122 fixedly installed on the upper flange 121, a lower flange 123 fixedly installed on the lower floating platform 11, a lower ball joint 124 fixedly installed on the lower flange 123, and the wave-damping device 2 is disposed between the upper ball joint 122 and the lower ball joint 124. The upper flange 121 and the lower flange 123 serve as mounting bases. When waves cause the upper floating platform 1 and the lower floating platform 11 to undergo relative deflection and heave in multiple directions, the upper ball joint 122 and the lower ball joint 124 respectively bear the loads from the upper flange 121 and the lower flange 123. The ball joint pair has multi-degree-of-freedom deflection capability, which can adaptively release the torsional and yaw displacements between the floating platforms, preventing the additional bending moment generated by the relative swaying of the floating platforms from directly acting on the wave-damping device 2 body. This ensures that the wave-damping device 2 always operates in the favorable force direction, preventing structural jamming and stress concentration damage due to additional bending moments. The flange, as a transition base, smoothly transfers the load of the floating platform base to the ball joint. This eliminates the additional bending moment caused by the swaying of the floating platforms, protecting the wave-damping device 2 from lateral bending moment damage.
[0022] See Figure 3-5 As shown, the wave-damping device 2 includes a main rod 21 fixedly installed between the upper ball joint 122 and the lower ball joint 124. A damping disk 24 is slidably installed on the main rod 21. A damping spring 23 is provided on the damping disk 24. A protrusion 22 is fixedly installed at one end of the damping spring 23 away from the damping disk 24. The protrusion 22 is fixedly installed on the main rod 21. The main rod 21 provides sliding guidance for the damping disk 24. The floating platform undergoes relative displacement due to wave excitation, causing the main rod 21 between the upper ball joint 122 and the lower ball joint 124 to move along with the floating platform. The damping disk 24 can slide along the axial direction of the main rod 21. When the upper floating platform 1 and the lower floating platform 11 drive the damping disk 24 to move downward, the resistance of the seawater causes the damping disk 24 to move towards the convex plate 22, compressing the damping spring 23. The damping spring 23 undergoes elastic deformation to store wave impact energy. When the wave load recedes, the elastic potential energy of the spring is released, driving the damping disk 24 to slide back to its original position along the main rod 21. The elastic force of the spring constrains the limit of the relative travel of the floating platform, and works in conjunction with the energy dissipation of the seawater vortex by the damping disk 24 to jointly reduce the wave impact. The convex plate 22 forms a positioning constraint on the end of the damping spring 23. Relying on the elastic energy storage and release of the damping spring 23 in conjunction with the sliding movement of the damping disk 24, the relative travel of the floating platform is limited, thus buffering the wave impact load.
[0023] See Figure 5 As shown, a wing plate 25 is fixedly installed on the damping disk 24, and a plurality of perforations 26 are opened on the damping disk 24 to allow seawater to pass through and induce vortices at the orifice. The damping disk 24 slides back and forth along the main rod 21, causing relative flow between the seawater and the damping disk 24. Some seawater passes directly through the perforations 26 in the damping disk 24, altering the seawater flow path and inducing flow separation at the inlet and outlet of the perforations 26, generating vortices that dissipate fluid kinetic energy. Simultaneously, the wing plate 25, fixed to the surface of the damping disk 24, moves synchronously with the damping disk 24. The wing plate 25 creates a cutting disturbance on the surrounding seawater, increasing the interaction area with the seawater and inducing more shedding vortices, further dissipating wave kinetic energy. The perforations 26 and the wing plate 25 work together to change the flow field state, improving overall hydrodynamic damping in an open seawater environment and suppressing the oscillation of the floating platform.
[0024] See Figure 7 As shown, the damping disc 24 is provided with a plurality of adaptive adjustment components 3 that cooperate with the perforation 26. The adaptive adjustment component 3 includes a piston cavity 31 opened on the periphery of the perforation 26. A piston plate 32 is slidably installed in the piston cavity 31. A guide 33 is fixedly installed in the piston cavity 31. The guide 33 communicates with the perforation 26. An adjustment plate 34 is slidably installed in the guide 33. A return spring 35 is fixedly installed on the adjustment plate 34. The end of the return spring 35 away from the adjustment plate 34 is fixedly connected to the inner wall of the piston cavity 31. The piston cavity 31 provides space for the piston plate 32 to move. When the damping disc 24 reciprocates, a dynamic pressure difference of seawater is generated on both sides of the perforation 26. This dynamic pressure difference acts on the piston plate 32 in the piston chamber 31, causing the piston plate 32 to displace and changing the fluid pressure inside the piston chamber 31. This drives the adjusting plate 34 inside the guide member 33 to slide. The return spring 35 follows the displacement of the adjusting plate 34, compressing or rebounding. When the waves are violent and the dynamic pressure difference of seawater is large, the adjusting plate 34 moves towards the perforation 26, reducing the effective water flow area of the perforation 26 and increasing the damping. When the wave load is small, the dynamic pressure difference decreases, the return spring 35 pushes the adjusting plate 34 backward, the water flow area is restored, and the damping automatically decreases. This achieves passive adaptive adjustment of the flow capacity of the perforation 26 according to the wave load, realizing adaptive adjustment of damping according to sea conditions.
[0025] See Figure 8 As shown, a bellows 36 is fixedly installed on the adjusting plate 34. The other end of the bellows 36 is fixedly connected to the inner wall of the piston chamber 31. The bellows 36 is sleeved on the return spring 35. The bellows 36 extends and retracts with the adjusting plate 34 to isolate seawater impurities and protect the return spring 35. During the reciprocating sliding of the regulating plate 34 driven by the seawater dynamic pressure difference, the bellows 36 expands and contracts synchronously with the regulating plate 34. The bellows 36 is sleeved on the outside of the return spring 35 to prevent seawater from entering the piston chamber 31 and corroding the return spring 35. The two ends of the bellows 36 are fixed to the regulating plate 34 and the inner wall of the piston chamber 31 respectively to ensure the sealing of the isolation space.
[0026] See Figure 9 As shown, the adjusting plate 34 is provided with a cutting edge 37. The adjusting plates 34 are arranged horizontally and the cutting edges 37 face each other. The cutting edge 37 is used to cut seaweed flocculent debris. When the seawater dynamic pressure difference drives the two regulating plates 34 to approach each other, the cutting edges 37 of the regulating plates 34 approach each other. The sharp angle configuration of the cutting edges 37 can shear the seaweed and flocculent marine debris carried in the seawater passing through the perforation 26. When the flocculent material enters the gap between the two regulating plates 34 with the water flow, the relatively moving cutting edges 37 can cut off the entangled debris, preventing seaweed and flocculent material from entangled and blocking the perforation 26, ensuring that the water passage of the perforation 26 will not be blocked by marine debris, ensuring that the flow regulation function of the adaptive regulating component 3 continues to function normally, preventing the damping performance from drifting and deteriorating, and ensuring the stability of the adaptive damping regulation function.
[0027] See Figure 6 As shown, the auxiliary component 4 includes a conical skirt 41 rotatably mounted on the damping disk 24. The conical skirt 41 has several inclined holes 42. Several flow-blocking plates 43 are fixedly mounted on the conical skirt 41. The inclined holes 42 deflect the direction of water flow. During the reciprocating motion of the damping disk 24, the conical skirt 41 mounted on the damping disk 24 is impacted by seawater. Part of the seawater flows through the inclined holes 42 on the conical skirt 41, which change the direction of the water jet, strengthen the surrounding vortex field, and simultaneously generate a force that drives the conical skirt 41 to rotate. The flow-blocking plate 43 on the conical skirt 41 acts to block and disturb the seawater, further dissipating the fluid's kinetic energy. The rotation of the conical skirt 41 can change the surrounding flow field distribution. The inclined holes 42 and the flow-blocking plate 43 work together to continuously dissipate wave energy during the skirt's rotation, assisting in vibration reduction. This further enhances the energy dissipation effect of the outflow vortex.
[0028] See Figure 10 As shown, a set of protective plates 111 are fixedly installed on the lower floating platform 11, and the protective plates 111 are arranged in an arc shape; The wave-damping device 2 is entirely located within the protective area enclosed by the protective plate 111. Floating debris such as plastic, seaweed, and driftwood drift with the waves. When this debris moves towards the wave-damping device 2, the arc-shaped protective plate 111 prevents large pieces of floating debris from directly impacting the damping disc 24, the conical skirt 41, and other moving parts. The arc-shaped plate also guides and deflects impacting debris, diverting it to both sides of the device to prevent large pieces from getting stuck in the device's movement gaps, thus preventing damage to moving parts from impacts or jamming. This protects the internal wave-damping device 2 from impacts and jamming malfunctions.
[0029] A PVDF piezoelectric film is provided on the damping disk 24; The damping disk 24 slides continuously back and forth under wave drive, while being subjected to seawater impact and vortex pulsation excitation. The PVDF piezoelectric film mounted on the surface of the damping disk 24 undergoes repeated deformation in response to the vibration of the damping disk 24 and the impact of seawater. Based on the piezoelectric effect, the mechanical energy of the film is converted into weak electrical energy when it undergoes mechanical deformation. The generated electrical energy can be collected and stored to power the low-power status monitoring sensors of the floating platform. The energy harvesting process does not interfere with the hydrodynamic vibration reduction work of the damping disk 24, but only extracts a portion of the wave vibration mechanical energy to complete self-powering, without the need for external power supply cables, thus realizing wave self-powering of the low-power components of the device.
[0030] The overall working principle of this invention is as follows: Waves at sea excite the upper floating platform 1 and the lower floating platform 11 to produce relative lifting and oscillating motions. The kinetic load is transmitted to the wave-damping device 2 via the connecting parts 12 on both sides. Under wave disturbance, the damping disk 24 in the wave-damping device 2 reciprocates in the seawater along with the relative displacement of the floating platform. Seawater flows around the damping disk 24, causing flow separation and continuously generating a large number of vortices. These vortices dissipate the kinetic energy carried by the waves, weakening the amplitude of the reciprocating oscillations of the floating platform. Simultaneously, the auxiliary component 4 installed on the damping disk 24 operates. Its conical skirt 41 uses the cone surface to converge and guide the surrounding water flow, expanding the range of water flow disturbance and further promoting the generation of seawater vortices. This helps to enhance the hydrodynamic damping under outflow conditions, reduce the vibration energy brought by the waves, and achieve wave vibration suppression of the floating platform by relying on the dissipation of wave energy through open seawater vortices. At the same time, the conical skirt 41 enhances the outflow damping energy dissipation capability. When waves cause relative deflection and heave motion in multiple directions between the upper floating platform 1 and the lower floating platform 11, the upper ball joint 122 and the lower ball joint 124 respectively bear the loads from the upper flange 121 and the lower flange 123. The ball joint pair has multi-degree-of-freedom deflection capability, which can adaptively release the torsional and yaw displacements between the floating platforms, preventing the additional bending moment generated by the relative swaying of the floating platforms from acting directly on the wave-damping device 2 body. This ensures that the wave-damping device 2 always works in the favorable force direction, preventing structural jamming and stress concentration damage due to additional bending moments. The flange, as a transition base, smoothly transfers the load of the floating platform base to the ball joint. This eliminates the additional bending moment caused by the swaying of the floating platforms, protecting the wave-damping device 2 from lateral bending moment damage. The floating platform undergoes relative displacement due to wave excitation, causing the main rod 21 between the upper ball joint 122 and the lower ball joint 124 to move with the floating platform. The damping disk 24 can slide along the axial direction of the main rod 21. When the upper floating platform 1 and the lower floating platform 11 drive the damping disk 24 to move downward, the resistance of the seawater causes the damping disk 24 to move towards the convex plate 22, compressing the damping spring 23. The damping spring 23 undergoes elastic deformation to store wave impact energy. When the wave load recedes, the elastic potential energy of the spring is released, driving the damping disk 24 to slide back to its original position along the main rod 21. The elastic force of the spring constrains the limit of the relative travel of the floating platform, and works in conjunction with the energy dissipation of the seawater vortex by the damping disk 24 to reduce wave impact. The convex plate 22 forms a positioning constraint on the end of the damping spring 23. Relying on the elastic energy storage and release of the damping spring 23 in conjunction with the sliding movement of the damping disk 24, the relative travel of the floating platform is limited, buffering the wave impact load. The damping disk 24 slides back and forth along the main rod 21, causing relative flow between the seawater and the damping disk 24. Some seawater passes directly through the perforations 26 in the damping disk 24, altering the seawater flow path and inducing flow separation at the inlet and outlet of the perforations 26, generating vortices that dissipate fluid kinetic energy. Simultaneously, the wing plate 25, fixed to the surface of the damping disk 24, moves synchronously with the damping disk 24. The wing plate 25 creates a cutting disturbance on the surrounding seawater, increasing the interaction area with the seawater and inducing more shedding vortices, further dissipating wave kinetic energy. The perforations 26 and the wing plate 25 work together to change the flow field state, improving overall hydrodynamic damping in an open seawater environment and suppressing platform oscillation. When the damping disc 24 reciprocates, a dynamic pressure difference of seawater is generated on both sides of the perforation 26. This dynamic pressure difference acts on the piston plate 32 in the piston chamber 31, causing the piston plate 32 to displace and change the fluid pressure inside the piston chamber 31. This drives the adjusting plate 34 inside the guide member 33 to slide. The return spring 35 follows the displacement of the adjusting plate 34, compressing or rebounding. When the waves are violent and the dynamic pressure difference of seawater is large, the adjusting plate 34 moves towards the perforation 26, reducing the effective water flow area of the perforation 26 and increasing the damping. When the wave load is small, the dynamic pressure difference decreases, and the return spring 35 pushes the adjusting plate 34 backward, restoring the water flow area and automatically reducing the damping. This achieves passive adaptive adjustment of the flow capacity of the perforation 26 according to the wave load, realizing adaptive adjustment of damping according to sea conditions. During the reciprocating sliding of the regulating plate 34 driven by the seawater dynamic pressure difference, the bellows 36 expands and contracts synchronously with the regulating plate 34. The bellows 36 is sleeved on the outside of the return spring 35 to prevent seawater from entering the piston chamber 31 and corroding the return spring 35. The two ends of the bellows 36 are fixed to the regulating plate 34 and the inner wall of the piston chamber 31 respectively to ensure the sealing of the isolation space. When the seawater dynamic pressure difference drives the two regulating plates 34 to approach each other, the blades 37 of the regulating plates 34 approach each other. The sharp angle configuration of the blades 37 can shear the seaweed and flocculent marine debris carried in the seawater passing through the perforation 26. When the flocculent material enters the gap between the two regulating plates 34 with the water flow, the relatively moving blades 37 can cut off the entangled debris, prevent the seaweed and flocculent material from entangled and blocking the perforation 26, ensure that the water passage of the perforation 26 will not be blocked by marine debris, ensure that the flow regulation function of the adaptive regulating component 3 continues to function normally, prevent the damping performance from drifting and deteriorating, and ensure the stability of the adaptive damping regulation function. During the reciprocating motion of the damping disk 24, the conical skirt 41 mounted on the damping disk 24 is impacted by seawater. Part of the seawater flows through the inclined holes 42 on the conical skirt 41, which change the direction of the water jet, strengthen the surrounding vortex field, and simultaneously generate a force that drives the conical skirt 41 to rotate. The flow-blocking plate 43 on the conical skirt 41 acts to block and disturb the seawater, further dissipating fluid kinetic energy. The rotation of the conical skirt 41 can change the surrounding flow field distribution. The inclined holes 42 and the flow-blocking plate 43 work together to continuously dissipate wave energy during the skirt's rotation, assisting in vibration reduction. This further enhances the energy dissipation effect of the external vortex. An arc-shaped protective plate 111 is fixedly installed on the lower floating platform 11, and the wave-damping device 2 is entirely located inside the protective area enclosed by the protective plate 111. Floating debris such as plastic, seaweed, and driftwood drift with the waves. When this debris moves towards the wave-damping device 2, the arc-shaped protective plate 111 can prevent large pieces of floating debris from directly impacting the damping disc 24, conical skirt 41, and other moving parts. The arc-shaped plate surface can also guide and deflect impacting debris, diverting it to both sides of the device to prevent large pieces of debris from getting stuck in the device's movement gaps, thus preventing damage to moving parts from impacts or jamming. This protects the internal wave-damping device 2 from impacts and jamming malfunctions. The wave-damping device 2 is entirely located within the protective area enclosed by the protective plate 111. Floating debris such as plastic, seaweed, and driftwood drift with the waves. When this debris moves towards the wave-damping device 2, the arc-shaped protective plate 111 prevents large pieces of floating debris from directly impacting the damping disc 24, the conical skirt 41, and other moving parts. The arc-shaped plate also guides and deflects impacting debris, diverting it to both sides of the device to prevent large pieces from getting stuck in the device's movement gaps, thus preventing damage to moving parts from impacts or jamming. This protects the internal wave-damping device 2 from impacts and jamming malfunctions.
Claims
1. A floating photovoltaic platform connection system with eddy current damping and piezoelectric self-powered power supply, characterized in that, include: The upper floating platform (1) and the lower floating platform (11) are provided with photovoltaic power generation components. Both the upper floating platform (1) and the lower floating platform (11) are provided with connectors (12). The connectors (12) are connected by a wave-damping device (2). The wave-damping device (2) includes a damping disk (24) that dissipates wave kinetic energy by utilizing seawater vortex during movement, thereby suppressing the reciprocating oscillation of the floating platform caused by wave excitation. The auxiliary component (4) is set on the damping disk (24). The conical curved edge included in the auxiliary component (4) gathers water flow through the conical surface and increases the turbulence area, strengthens vortex dissipation, and helps to improve the outflow damping effect.
2. The floating photovoltaic platform connection system with eddy current damping and piezoelectric self-powered according to claim 1, characterized in that, The connector (12) includes an upper flange (121) fixedly installed on the upper floating platform (1), an upper ball joint (122) fixedly installed on the upper flange (121), a lower flange (123) fixedly installed on the lower floating platform (11), a lower ball joint (124) fixedly installed on the lower flange (123), and the wave damping device (2) is disposed between the upper ball joint (122) and the lower ball joint (124).
3. The floating photovoltaic platform connection system with eddy current damping and piezoelectric self-powered according to claim 2, characterized in that, The wave-damping device (2) includes a main rod (21) fixedly installed between the upper ball joint (122) and the lower ball joint (124). A damping disc (24) is slidably installed on the main rod (21). A damping spring (23) is provided on the damping disc (24). A protrusion (22) is fixedly installed at one end of the damping spring (23) away from the damping disc (24). The protrusion (22) is fixedly installed on the main rod (21).
4. The floating photovoltaic platform connection system with eddy current damping and piezoelectric self-powered according to claim 3, characterized in that, A wing plate (25) is fixedly installed on the damping disc (24), and several perforations (26) are opened on the damping disc (24).
5. A floating photovoltaic platform connection system with eddy current damping and piezoelectric self-powered according to claim 4, characterized in that, The damping disc (24) is provided with a plurality of adaptive adjustment components (3) that cooperate with the perforation (26). The adaptive adjustment components (3) include piston chambers (31) opened on the periphery of the perforation (26). A piston plate (32) is slidably installed in the piston chamber (31). A guide (33) is fixedly installed in the piston chamber (31). The guide (33) communicates with the perforation (26). An adjustment plate (34) is slidably installed in the guide (33). A return spring (35) is fixedly installed on the adjustment plate (34). The end of the return spring (35) away from the adjustment plate (34) is fixedly connected to the inner wall of the piston chamber (31).
6. The floating photovoltaic platform connection system with eddy current damping and piezoelectric self-powered according to claim 5, characterized in that, A bellows (36) is fixedly installed on the adjusting plate (34). The other end of the bellows (36) is fixedly connected to the inner wall of the piston chamber (31). The bellows (36) is sleeved on the return spring (35).
7. A floating photovoltaic platform connection system with eddy current damping and piezoelectric self-powered according to claim 6, characterized in that, The adjusting plate (34) is provided with a cutting edge (37), and the adjusting plates (34) are arranged horizontally with the cutting edges (37) facing each other.
8. A floating photovoltaic platform connection system with eddy current damping and piezoelectric self-powered according to claim 7, characterized in that, The auxiliary component (4) includes a tapered skirt (41) rotatably mounted on a damping disc (24), the tapered skirt (41) having a plurality of inclined holes (42), and a plurality of baffles (43) fixedly mounted on the tapered skirt (41).
9. A floating photovoltaic platform connection system with eddy current damping and piezoelectric self-powered according to claim 8, characterized in that, A set of protective plates (111) are fixedly installed on the lower floating platform (11), and the protective plates (111) are arranged in an arc shape.
10. A floating photovoltaic platform connection system with eddy current damping and piezoelectric self-powered according to claim 9, characterized in that, A PVDF piezoelectric film is provided on the damping disk (24).