Vortex-induced vibration energy harvesting and vibration control apparatus and method

By combining deformation components and energy harvesting components, the amplitude of vortex-induced vibration is adjusted by utilizing the deformation state of the skin, thus solving the problem of balancing vibration control and energy harvesting in traditional devices and improving the safety and energy harvesting efficiency of the device.

CN120658009BActive Publication Date: 2026-06-19CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
Filing Date
2025-06-19
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Traditional vortex-induced vibration energy harvesting devices struggle to balance vibration control and energy harvesting efficiency, failing to effectively control the intensity and frequency of vortex-induced vibration, leading to device damage or low energy harvesting efficiency.

Method used

The system employs a deformation component, including a skin and a drive unit. By monitoring the ambient wind vector and vibration parameters, the skin is driven to different deformation states to adjust the amplitude. Combined with an energy harvesting component, mechanical energy is converted into electrical energy.

Benefits of technology

Effective control of vortex-induced vibration was achieved, energy harvesting efficiency was improved, device safety was protected, and the dual optimization goals of vibration control and energy harvesting were achieved.

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Abstract

This invention provides an energy harvesting and vibration control device and method for vortex-induced vibration, belonging to the field of energy harvesting and vortex-induced vibration control technology. The device includes a deformation component, a monitoring component, and an energy harvesting component. The deformation component is disposed on the target surface of a target component and includes a skin and a driving component. The driving component is disposed between the skin and the target surface and can drive the skin to a first state of concave deformation and a second state of convex deformation. The monitoring component is configured to monitor the ambient wind vector and vibration parameters. When the ambient wind vector is greater than a first threshold, the driving component drives the skin to the first state to increase the amplitude of the target component. When the vibration parameters are greater than a second threshold, the driving component drives the skin to the second state to decrease the amplitude of the target component. The energy harvesting component is configured to convert the mechanical energy of the target component into electrical energy. This invention can improve the control degree of vortex-induced vibration of the target component and improve the energy harvesting efficiency of the target component.
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