Design And Application Of Triboelectric Nanogenerator Based On Origami Configuration

As human society enters a stage of rapid development,the demand for energy is increasing,and how to collect energy from the environment has become an important research direction.Common environmental energy sources include solar energy,thermal energy and various forms of mechanical energy.Triboelectric nanogenerator(TENG)technology is an emerging energy technology that can collect various forms of mechanical energy and has great potential for development in the field of vibrational mechanical energy harvesting.Innovative captive energy structure design to optimize the performance of nano-generators in various engineering environments is an important way to promote the development of Triboelectric nanogenerator technology.The origami structure is very suitable for constructing TENG due to its advantages of foldable unfolding and various configurations.In this paper,we combine TENG with origami structures to design TENG based on origami structures for motion Sensing and mechanical energy harvesting under the action of structural vibrations,providing a design basis for engineering applications.The main research of this paper is as follows:(1)A new TENG device was developed by combining TENG with origami structures.The performance experimental tests of the device were carried out to realize the optimization scheme comparison of key parameters such as device base structure,dielectric pair material properties,circuit resistance,and excitation frequency.The experimental results show that the output voltage and average power of the device reach the maximum value when the intrinsic frequency of the device was close to the excitation frequency;there was an optimal value of external resistance to maximize the electrical output of the device;in addition,different structural forms also affected the output performance of the device,and the influence of the dynamic characteristics of the host structure needs to be considered when optimizing the device.(2)A new contact-separated TENG motion sensor device based on the origami configuration was designed and fabricated,and the device was investigated for structural state sensing characteristics under dynamic loading.Using the energy dissipation property of the crease of the origami structure,the device achieved sensing of the structural response while mitigating structural vibration when used in structural energy dissipation support.(3)A new contact-separated TENG device based on origami configuration was designed and fabricated for structural vibration energy harvesting.The operating principle,output performance,and feasibility of the device for vibrational mechanical energy harvesting were investigated.The electrical output of the proposed Arc configuration TENG was 13.18μW.And the device was applied to pavement vibration energy harvesting and rutting experiments were conducted to provide a basis for engineering applications.In summary,this paper proposes a new TENG device based on origami configuration and uses it for structural energy capture,sensing and vibration dissipation species,which provides a new idea for intelligent structural vibration damping and sensing research.