Design And Application Of The Less-leaf Springs With Self-Powered Sensing Function

This study is based on the current status of energy and environmental development,taking into account national future development strategies,the future trends of the automotive industry,and the application of new technologies.The research topic proposed in this paper is"Design and Application of Less-leaf Spring Systems with Self-Powered Sensing Function."The research aim of this paper is to enable ordinary automotive components,specifically fewspring systems,to achieve self-powered sensing function through triboelectric nanogenerator technology.This provides favorable conditions for the future application of a large number of distributed sensors.In this paper,the design of less-leaf spring systems with self-powered sensing function begins with the structural design and parameter selection of the required lessleaf spring systems for the experiments.Then the triboelectric nano-generator(TENG)needed for the experiment was made.Furthermore,a power bonding graph model,resembling a vertical contact-separation triboelectric nanogenerator,is established.The power bonding graph model of TENG is the core innovation of this paper.This model allows for the unified treatment of systems with multiple forms of energy,providing an intuitive understanding of the interactions and energy conversion relationships among the components in the TENG system.In the study of the application of less-leaf springs with self-powered sensing functionality,the actual application scenarios of TENG are first simulated,combined with the designed lessleaf springs,and related experimental studies are conducted.The experimental results show that the frequency and displacement in the environment jointly affect the total mechanical energy collection and the mechanical energy collection power of TENG during the energy collection process.Then,the parameter values corresponding to the power bonding diagram model of the vertical contact-separation type TENG are obtained through experimental data and the power bonding diagram theory.The power bonding diagram model is then transformed into a corresponding block diagram,and a dynamic simulation model of the vertical contactseparation type TENG is established based on the block diagram and actual situations.The relevant parameters in the TENG power bonding diagram model are input into the dynamic simulation model,and the simulation data and experimental data are compared to verify the effectiveness of the TENG bonding diagram model.Then,different parameters are changed,and the impact of different parameters on the TENG output performance is analyzed.The conclusion is that in the theoretical design of the vertical contact-separation type TENG,the maximum value of the contact charge should be increased as much as possible to improve the theoretical maximum output electrical energy value of the f triboelectric nanogenerator.In the application research of the vertical contact-separation type TENG,the value of parameter R6 should be increased as much as possible,which will make the actual output electrical energy of the vertical contact-separation type TENG approach the theoretical maximum output electrical energy.This provides a new idea for researchers in related fields to design and apply TENG.In order to overcome the low energy density output of TENG itself,a Joule circuit can be used to convert the low energy collected by TENG,which originally required a voltage of 17 V to output,into low energy that can be output normally with only 1 V.In the future,when self-powered sensors are used on a large scale,the use of a large number of low-energy sensors in combination will generate significant benefits.